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EDITORIAL |
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Non-communicable diseases and oral health |
p. 115 |
SM Balaji DOI:10.4103/ijdr.ijdr_698_22 |
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ORIGINAL RESEARCH: EVALUATIVE STUDY |
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Incidence of inferior alveolar nerve sensory deficit and intra-operative nerve encounters after advancement of retrognathic mandible – A cross-sectional survey study |
p. 116 |
Suresh Vyloppilli, Annamalai Thangavelu, Sankar Vinod Vichattu, Nithin Kumar, Fahad Ahmad, Shermil Sayd DOI:10.4103/ijdr.ijdr_315_22
Aims and Objectives: The aim of the current cross-sectional study was to conduct a survey among the oral and maxillofacial surgeons of South India regarding their experiences of incidence of inferior alveolar nerve (IAN) neurosensory deficit after bilateral sagittal split osteotomy (BSSO) for correction of mandibular retrognathism and to assess the intra-operative nerve encounters and its effect on the inferior alveolar neurosensory deficit (NSD), 6 months post-operatively. Materials and Methods: A self-administered questionnaire (SAQ) was prepared using Google Forms (Google Inc.) and sent to the prospective participants through various social media outlets such as Facebook, WhatsApp groups etc., of the maxillofacial surgery specialty for a period of 3 months. SAQ from surgeons with more than 5 years of experience in orthognathic surgery were included. Results: The incidence of NSD post-BSSO advancement surgery from 859 cases after 6 months was 15.1% (130). After splitting the mandible, the IAN was seen in the proximal fragment in 472 sites and needed dissection. The nerve was transected and neurorrhaphy was carried out in 26 sites. A Chi-square test was used to analyse the qualitative variables. The IAN was not visible post-osteotomy in 140 sites and in the distal fragment in 1080 sites. These groups had decreased incidence of NSD. The NSD was significantly higher in cases where the nerve was transected and sutured, P value <0.001 as compared with the other nerve status, followed by the nerve in the proximal fragment needing dissection. Conclusion: The IAN status intra-operatively can be assumed to have a significant role in persisting NSD.
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Assessment of clinical depression in abdominally obese subjects with periodontal disease |
p. 120 |
Sheetal Acharya, Anurag Satpathy, Rajdeep Beura, Pratiti Datta, Utkalika Das, Pranab Mahapatra DOI:10.4103/ijdr.IJDR_780_18
Background: Depression is a commonly prevailing condition that goes undetected in clinical settings. Both abdominal obesity and periodontal disease have a bearing on mental health and have an impact on the quality of life. Objective: To assess the level of clinical depression in abdominally obese subjects with periodontal disease. Methods: Two hundred and ten subjects with a mean age of 37.45 ± 9.59 years (males = 117; females = 93) were grouped as per their abdominal obesity and periodontal status and assessed for their clinical depression levels (mental health) using the Centre for Epidemiologic Studies-Depression Scale (CES-D). Collected data were analysed. Results: The clinical depression score significantly varied in subjects with different periodontal status in both non-obese (F (2,102) = 113.66, P < 0.0001) and abdominally obese subjects (F (2,102) = 132.04, P < 0.001). Significantly higher depression score was demonstrated in healthy (P < 0.001), gingivitis (P < 0.001), and periodontitis (P < 0.001) groups in abdominally obese subjects. Conclusion: Clinical depression is significantly associated with abdominal obesity and periodontal disease in subjects with abdominal obesity and severe periodontal disease demonstrating higher depression scores.
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Evaluation of the mother's anxiety and child's fear in two different age groups in the child's first and second dental visit |
p. 126 |
Daya Srinivasan, D Senthil, AR Senthil Eagappan, P Rajesh, Kirthika S Prakash, G Shanmugavadivel DOI:10.4103/ijdr.IJDR_256_20
The anxiety of the mother influences the child's behaviour in a dental setting. Objectives: The study aimed at evaluating the mother's anxiety and a child's fear of first and second dental visits in two different age groups. Study Design: The cross-sectional study design consisted of a total of 100 mother-child pairs attending Pediatric Dental clinics was included in the study. Group I consisted of 50 mother-child pairs of 6-8 years of age. Group II consisted of another 50 mother-child pairs between 12-15 years of age. Short Form of the Dental Subscale of the Children's Fear Survey Schedule (DFSS-SF) was administered to the child. Corah's Dental anxiety scale was administered to the mother. The Tell-Show-Do (TSD) technique was used in all children before the treatment. Statistical Analysis Used: SPSS software 21 was used for descriptive and inferential statistics. Pearson's correlation coefficient was used for bivariate correlation between variables in the study. Results: The anxiety level of mothers on both appointment days in both age groups was found to be highly significant. The correlation of maternal anxiety to the gender of the child in both groups was found to be highly significant. Conclusion: The fear of dental treatment was commonly found in children irrespective of gender in both age groups. The TSD technique was found to reduce fear in the subsequent appointment.
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Knowledge, attitude and practices among sanitation workers regarding SARS-CoV-2 prevention – A cross-sectional study |
p. 130 |
Jadhav S Kumar, BC Manjunath, Bhavna Sabbarwal, Neha Chauhan, Vipul Yadav, Adarsh Kumar DOI:10.4103/ijdr.ijdr_182_22
Aim: To evaluate knowledge, attitude and practices among sanitation workers regarding SARS-CoV-2 prevention during hospital waste management. Materials and Methods: A cross-sectional study was conducted among 426 sanitation workers using an interviewer-administered questionnaire to assess the knowledge, attitude and practices of the study participants. The unpaired t-test and Spearman's correlation were used to find the mean difference and correlation among different study variables. Statistical significance was set at 5% (confidence interval 95%). Results: The mean knowledge score of the participants was found to be 7.15 ± 2.02. About 93.7% of the participants had good knowledge about COVID-19. About 64.3% of the participants strongly agreed that COVID-19 is a life-threatening disease. Regarding practices, a majority reported (69.7%) that they washed hands frequently using water and soap. A significant positive correlation was found between knowledge, attitude, practices and education, indicating a favourable work environment in hospital settings. Conclusion: More than half of the sanitation workers and housekeeping staff had adequate knowledge of COVID-19, and their attitudes were found to be favourable. They also had satisfactory practices, which may be a result of the prompt training and sensitization of sanitation workers by the authorities. Clinical Relevance: Sanitation workers come under the essential services category and their knowledge, attitude and practices needed to be assessed and updated in the concerned area for their protection and better management of biomedical waste, especially in the current pandemic situation.
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Caries experience scores revisited for caries risk assessment using cariogram model – A cross-sectional study |
p. 135 |
Arun Kumar Patnana, Ankita Chugh, Vinay Kumar Chugh, Kanupriya Rathore, Ira Solanki, Pravin Kumar DOI:10.4103/ijdr.ijdr_244_22
Context: The widely accepted caries risk assessment tools such as the Cariogram model needs modifications in the scoring of different factors for reliable results. Aims: The study was aimed to report the caries experience in 3-60 years of the Rajasthan population and to apply the newly derived average decayed exfoliated filled teeth/Decayed Missing Filled Teeth (deft/DMFT) scores in the Cariogram model to assess the caries risk. Settings and Design: The cross-sectional study was planned in the Department of Dentistry and a total of 500 participants were equally divided into five groups (3-6, 7-12, 13-30, 31-44, and 45-60 years) were included. Methods and Material: All participants were examined for caries detection using deft/DMFT, ICDAS, and CAST indices according to the predefined protocol. A single examiner evaluated the participants in a dental operatory and data was recorded. Statistical Analysis Used: One-Way ANOVA and Tukey's Post-Hoc tests were used to evaluate the significant difference between the groups of each caries index. Results: A statistically significant difference was observed between the mean deft/DMFT and CAST scores of 3-6, 7-12, and 13-30 age groups with the 45-60 years age group. Caries prevalence was highest (83%) in 31-44 and 45-60 year age groups and lowest (51%) in the 3-6 year age group. Conclusions: Caries experience scores increase as the age increases and the highest scores were observed in 31-44 and 45-60 year age groups and the lowest were observed in the 3-6 year age group. The average ICDAS and CAST scores were higher when compared to the deft/DMFT index.
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Relationship between sense of coherence, OHRQoL, and dental caries among nursing students in South India |
p. 141 |
Praveen Bhoopathi Haricharan, Ban Almudarris, Sabrin Ali Azim, Farah Saed Albanna, Yaser Elkareimi, Syed Kuduruthullah DOI:10.4103/ijdr.ijdr_331_22
Background: Dental caries is one of the most common dental diseases that affect all population and is associated with the avoidance of care. Research has reported that sense of coherence (SOC) is related to many aspects of health including oral health. SOC determines the quality of health and might have a direct association with the development of subjective assessments of oral health. Objectives: To find the association between SOC, Oral Health-Related Quality of Life (OHRQoL) and caries status among nursing college students in southern state of India. Design: Cross-sectional design using questionnaire and assessment of caries status. Participants: Nursing students from south India. Methods: Convenience sampling method was followed and students who were present on the day of the study and consented to participate were included in the study. The total study sample consisted of 494 nursing students. SOC and OHRQoL were measured by a self-administered questionnaire; caries status was assessed using Decayed, Missing and Filled Tooth (DMFT) index. Results: Association between SOC and Oral Health Impact Profile (OHIP) and caries status and OHIP was found to be statistically significant. Correlation between dental caries and OHIP was found to be statistically significant, with R-value –0.251 shows that OHIP is negatively correlated with caries status. Conclusion: SOC as a psychosocial resource is capable of facilitating the motivation for positive oral health behaviours. These resources along with socio-economic and demographic factors can create an environment that is partially responsible for the individuals' cognitive and physical functions that can express themselves as the individuals' well-being and positive health behaviours.
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Efficacy of topical tulsi (Ocimum sanctum) paste for the management of oral submucous fibrosis – A clinical study |
p. 146 |
Deepti Biswas, Zameera Naik, S Lokesh Kumar, Namratha Patil, Anjana Bagewadi DOI:10.4103/ijdr.IJDR_929_20
Context: Oral submucous fibrosis (OSMF) is a chronic insidious oral potentially malignant disorder characterized by increased collagen deposition and reduced collagen degradation causing burning sensation and difficulty in mouth opening. Aim: To assess the efficacy of topical Tulsi (Ocimum sanctum) paste for the management of OSMF. Settings and Design: Institution-based clinical trial. Materials and Methods: The study included a total of 60 OSMF patients categorized into three Groups A, B and C (20 in each) depending on the severity according to Lai DR et al. classification. The patients were advised for topical Tulsi paste application and were evaluated for the reduction in the burning sensation and improvement in mouth opening every month for 3 subsequent months using the numeric pain rating scale (NRS) and a Vernier calliper, respectively. Statistical Analysis: The baseline and 3-month recordings were subjected to inter- and intra-group statistical analysis using Kruskal–Wallis analysis of variance (ANOVA), Mann–Whitney U, one-way ANOVA, Tukey's multiple post-hoc and Wilcoxon matched-pairs tests. Results: There was a reduction in the burning sensation and improvement in the mouth opening in all three groups. The reduction in the burning sensation was statistically significant among all the groups (P < 0.05) and the NRS scores after 3 months among the three groups were not statistically significant (P > 0.05). There was a statistically significant difference (P < 0.05) in the improvement of mouth opening between Group A and B; A and C; but not between B and C. Conclusion: Tulsi paste showed a significant reduction in the burning sensation and improvement of the mouth opening thereby proving to be a safe and promising medicament for OSMF.
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ORIGINAL RESEARCH: COMPARATIVE STUDY |
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Evaluation of biphasic hydroxapatite and β-tricalcium phosphate as a bone graft material in the treatment of periodontal vertical bony defects – A clinical and digital radiological measurement study |
p. 152 |
Amit Kumar Gupta, Karandeep Singh Arora, Priyanka Aggarwal, Kirandeep Kaur, Shreeyam Mohapatra, Shubhangi Pareek DOI:10.4103/ijdr.IJDR_234_19
Aims and Objective: The present study aimed to evaluate 2 bone graft materials, that is, biphasic hydroxyapatite and β-tricalcium phosphate, in the treatment of periodontal vertical bony defects. In term of attachment level, probing depth and radiographic bone level changes. Also, a new digital method of radiographic assessment was used for measurement of vertical bone defect. Material and Methods: Ten subjects with periodontitis and having two or more vertical bony defects were enrolled in the study. Patients were classified randomly into 2 groups. Group I consisted of the experimental site where defect was filled with biphasic hydroxyapatite and β-tricalcium phosphate graft and Group II consisted of control site where only the open flap debridement (OFD) was carried out. Clinical parameters were evaluated at baseline, 3 and 6 months; Radiographs were taken at baseline and 6 months after surgery. Results: Overall, by the end of 6 months, biphasic hydroxyapatite and β-tricalcium phosphate and OFD treatment groups exhibited a significant reduction in probing depth almost by 75% and gain in clinical attachment level at follow-up. In the biphasic hydroxyapatite and β-tricalcium phosphate group, radiographic bone level gain appeared to be greater than in the OFD group. Conclusion: In the present study, biphasic hydroxyapatite and β-tricalcium phosphate have shown promising results and have showed reduction in probing depth, a resolution of osseous defects and gain in clinical attachment level when compared to open flap debridement.
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Use of pulp tissue of deciduous teeth for gender determination - A comparative molecular analysis study |
p. 158 |
R Manju, MS Ravi DOI:10.4103/ijdr.ijdr_507_21
Aim: The present study aimed to evaluate the effectiveness of pulp tissue collected from deciduous teeth for the determination of gender using polymerase chain reaction (PCR). Materials and Methods: 140 extracted deciduous teeth were selected. The control group comprised 20 teeth that were subjected to DNA analysis immediately. Whereas Group I and Group II consisted of 60 teeth which were stored in the open environment and salt water, respectively, for a period of 3, 9, and 15 months. DNA was isolated and quantified followed by the amplification of X and Y chromosomes by PCR and compared with the actual gender of the child. The data were analysed using the Shapiro-Wilk test, the independent sample t-test, paired t-test, and the Chi-square test. Result: The PCR analysis results of Group I showed a more correct interpretation of gender as compared to Group II on storage for a period of 15 months. The PCR analysis results of the Control group showed a 100% accuracy rate as compared to the samples in Groups I and II. Conclusions: Gender could be effectively determined from the samples evaluated immediately after extraction. But the period of storage and the method of storage conditions affected the quality of isolated DNA and thus decreased the ability of gender determination.
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Serum lactate dehydrogenase in the prognostic assessment of patients with oral squamous cell carcinoma |
p. 164 |
Jimson Sudha, Amaladas Julius, Samson Jimson, Kesavaram Padmavathy DOI:10.4103/ijdr.IJDR_311_19
Background: Lactate dehydrogenase (LDH) has been proven to be a diagnostic marker in oral squamous cell carcinoma (OSCC). However, the prognostic value of serum LDH in OSCC is yet to be explored. The purpose of this study is to correlate the level of serum LDH with the degree of OSCC and to evaluate the role of serum LDH as a prognostic marker in OSCC. Methods: The investigators designed and implemented a prospective cohort study composed of patients with OSCC (n = 66) sub-grouped as follows: 2A—well-differentiated (n = 22), 2B—moderately differentiated (n = 22), 2C—poorly differentiated OSCC (n = 22), and normal healthy controls (n = 40). The primary outcome variable was the serum LDH measured at baseline (pre-treatment) and 2 and 12 months post-treatment in OSCC patients. The statistical analysis was performed using the student t-test and analysis of variance, and the P value was set at 0.05. Results: The habit of alcohol consumption alone as a single habit was found only in males (17.5%) (P = 0.3343), whereas betel quid chewing was more common among females (P = 0.0182). A significant difference was observed in the mean serum LDH between OSCC subjects (pre-treatment) (831.56 ± 93.43 IU/L) and controls (188.82 ± 25.53 IU/L), P < 0.00001. The baseline serum LDH was significantly higher in subgroup 2C (933.41 ± 46.1969 IU/L) than in the 2A (742.59 ± 46.5676 IU/L) and 2B (818.68 ± 58.1643 IU/L) subgroups (P = 0). There was a significant decline in the serum LDH within 2 months after treatment, and a further decrement was observed during a 12-month follow-up among the survivors of all three subgroups; P < 0.00001. Conclusion: Serum LDH can play a dual role as a reliable indicator of the degree of OSCC for decision-making in treatment modalities and as a prognostic marker of response to therapy.
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Antibacterial efficacy of manuka honey, ocimum sanctum, curcuma longa and 0.2% chlorhexidine mouthwash on the level of streptococcus mutans and lactobacillus acidophilus - A randomized controlled trial |
p. 169 |
Ankita Jain, Vikas Singh, Anooj Lukram, Silpi Chatterjee, Asim Mustafa Khan, Geetanshu Dawar DOI:10.4103/ijdr.ijdr_159_22
Objective: To assess the effects of Manuka honey, Ocimum sanctum, Curcuma longa, and 0.2% chlorhexidine mouthwash on Streptococcus mutans and Lactobacillus acidophilus levels. Material and Methods: A randomized controlled trial will be conducted on dental students of Teerthanker Mahaveer Dental College and Research Centre, Moradabad. The study participants will be divided into four groups. Each group will have a total of 20 individuals. By using a lottery system, Group A (Manuka honey mouthrinse), Group B (Ocimum sanctum mouthrinse), Group C (Curcuma longa mouthrinse), and Group D (0.2% chlorhexidine mouthrinse) will be chosen. To match the circadian cycle, saliva will be collected at baseline and again after 2 weeks between 10 and 10.30 a.m. The sterile container will subsequently be delivered to the microbiological laboratory and processed as soon as possible to measure Streptococcus mutans and Lactobacillus acidophilus count. For 2 weeks, participants were told to use 10 mL of mouthrinse twice daily. Results: The mean oral hygiene index-simplified (OHI-S) score of all the four groups showed reduction in their scores from baseline to after the study period. For both S. mutans and L. acidophilus, there was a substantial Percentage Reduction (PR) between the prerinse and postrinse samples in all four groups. Discussion: Because quantitative actions play a crucial part in the caries disease process, the changes in microbial activity before and after administration of experimental mouthwashes were examined. Conclusion: Essential oil aqueous extracts were as efficient antibacterial mouthwashes as chlorhexidine and iodine mouthwashes.
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Evaluation of efficacy of subgingival administration of 1% chlorhexidine gel as an adjunct to scaling and root planing in the treatment of chronic periodontitis - A clinical and microbiological study |
p. 174 |
Varsha Goswami, Ramreddy K Yeltiwar, Shirish Kujur, Parul Agrawal, Sonika Bodhi, Shruti Bhatnagar DOI:10.4103/ijdr.ijdr_936_21
Aim: The aim of the present study was to evaluate the clinical and microbiological effects of subgingival administration of 1% chlorhexidine gel (Chlorhexamed® 1% gel) in patients with chronic periodontitis. Settings and Design: The study was done in a parallel-arm design with a total of 30 patients with 60 sites suffering from chronic periodontitis. The patients were divided into control and experimental groups. Materials and Methods: The clinical parameters recorded were plaque index, gingival index, modified sulcular bleeding index, probing pocket depth and relative attachment level at baseline, 1 month and 3 month. Microbiological colony-forming units were assessed for Porphyromonas gingivalis, Fusobacterium nucleatum and Tannerella forsythia at baseline, 1 week, 1 month and 3 months. The control group received scaling and root planing (SRP) after baseline evaluation; however, the experimental group received the application of Chlorhexamed® gel within 48 hours after SRP. Then, the values obtained were subjected to statistical analysis. Results: Both groups showed significant improvement from the baseline to 3 months in all clinical and microbiological parameters. The experimental group showed better improvement in all parameters. Conclusion: The use of Chlorhexamed® gel has proven to be an efficacious adjunct with SRP in the treatment of chronic periodontitis.
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Comparative effect of 1.2% atorvastatin gel and 1.2% rosuvastatin as a local drug delivery in treatment of intra-bony defects in chronic periodontitis |
p. 180 |
Ashish Soni, Swati Raj, Laxmikant Kashyap, Amit Upadhyay, Vikas Chandra Agrahari, Anil Sharma DOI:10.4103/ijdr.ijdr_25_21
Background: The present study was aimed to evaluate the efficacy of 1.2% Atorvastatin (ATV) with 1.2% Rosuvastatin (RSV) as local drug delivery for treatment of Chronic Periodontitis (CP). Materials and Methods: Forty patients were equally divided into two groups. Group A underwent scaling and root debridement and 1.2% ATV gel (1.2 mg/0.1 mL) was placed, whereas group B received scaling and root debridement and RSV (1.2 mg/0.1 ml) was placed. Results: The results showed that both the groups had improvement in all the recorded parameters, and the results obtained were statistically significant. When comparison was made between the groups, no significant difference was obtained between atorvastatin and rosuvastatin at baseline in all recorded parameters. However, after 6 months significant improvement was recorded in CAL (Clinical attachment level) and PD (Probing depth). The plaque index (PI) and gingival index (GI) score however showed improvement, but it did not attain the level of significance. Conclusion: The present study showed improvement in clinical parameters with the use of ATV and RSV gel when used in combination with scaling and root planing (SRP) in CP patients. Patients with RSV gel showed up significantly better than the ones in which ATV gel was placed.
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Evaluation of the efficacy of plaque reduction and gingival health among 6-12 years old school children before and after a short term daily intake of probiotic lozenge - A comparative study |
p. 184 |
Muthukrishnan Kavitha, GS Prathima, Divvi Anusha, Shivashankar Kengadaran, K Gayathri, V Vinothini DOI:10.4103/ijdr.IJDR_232_20
Context: Probiotics are defined as live microorganisms which when delivered in adequate amounts provides health benefit in the host. Dietary supplements like lozenge seem to be the easy and acceptable vehicle for ingestion of probiotics in young children. Aim: To assess the efficacy of probiotics in plaque reduction and gingival health among 6-12 years school children before and after short term daily intake of Probiotic lozenge. Settings and Design: This Comparative study was conducted among 60 children in the age group 6–12 years. Thirty children in experimental group; who were given lozenge containing probiotic bacteria twice daily, one in the morning and another in the evening after brushing for one month. The placebo lozenge group also followed the same protocol. Statistical Analysis Used: SPSS version 21. Results: The Probiotic lozenge group was found to have statistically significant reduction in plaque scores when compared to that of the placebo group with P < 0.001 and there was also a significant improvement in gingival health. Conclusion: An effective reduction in plaque accumulation and gingival inflammation was found with the use of probiotic lozenges and hence proved the therapeutic value of the same.
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ORIGINAL RESEARCH: IN VITRO STUDY |
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Influence of two remineralizing agents on bleached enamel surface morphology and mineral composition – An In Vitro study |
p. 188 |
Malasha Godinho, Ida de N de Ataide, Rajan Lambor, Marina Fernandes DOI:10.4103/ijdr.ijdr_896_21
Aim: To investigate the effects of bleaching with 35% hydrogen peroxide on the structure of tooth enamel and the role of two remineralizing agents for their potential to remineralize any damaged regions of enamel. Materials and Methods: Freshly extracted 32 mature permanent central incisors were selected and sectioned at the level of the cemento-enamel junction. The teeth were divided into four groups consisting of eight teeth each: No bleaching (control) [Group 1], bleaching with 35% hydrogen peroxide [Group 2], bleaching with 35% hydrogen peroxide followed by application of casein phosphopeptide amorphous calcium phosphate fluoride paste [Group 3], and bleaching with 35% hydrogen peroxide followed by application of xylitol-coated calcium phosphate fluoride varnish [Group 4]. The enamel surfaces were analyzed under the scanning electron microscope and quantitative energy dispersive X-ray analysis. Results: Results were statistically analyzed by one-way analysis of variance and Tukey's posthoc test. Group 2 revealed changes in enamel surface morphology and a statistically significant decrease in mineral content. Groups 3 and 4 showed statistically significant remineralization potential. Intergroup comparison showed that samples in Group 4 had a higher mineral content compared to Group 3. Conclusions: The application of the tested remineralizing agents following bleaching was effective in repairing the enamel surface morphology with higher efficacy for the fluoride varnish product. Since bleaching regimes with high concentrations of hydrogen peroxide adversely affect the enamel surface, these findings can translate to clinical practice to reduce the long-term damaging effects of tooth bleaching.
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The effect of adding nanoparticles to dental porcelain on the fracture resistance and bond strength to zirconia core |
p. 193 |
Abdullah J Mohammed, Alaa E Dawood, Mohammad A Saeed DOI:10.4103/ijdr.ijdr_222_22
Background: Porcelain combined with zirconia core substructure has low fracture toughness. Nanoparticles are incorporated into the porcelain to boost its mechanical properties. Aims: To evaluate the effect of the incorporation of silver oxide and titanium oxide nanoparticles into porcelain powder on the bond strength of porcelain veneer to zirconia core. The flexural strength of nanoparticles-modified porcelain was also evaluated. Materials and Methods: The flexural strength of feldspathic porcelain was measured (according to ISO specifications number 6872) after the incorporation of silver and titanium oxide nanoparticles. For measuring the bond strength at the porcelain-zirconia interface, 70 bars (4 × 4 × 12 mm) of zirconia were cut and fired in a furnace. The control and nanoparticles-modified porcelain powders were built up on the zirconia bars and fired to create veneers of 3 mm height, 4 mm width and 4 mm thickness. The porcelain veneers were de-attached from the zirconia core by the universal testing machine. The failure load was recorded to calculate the bond strength. Statistical Analysis: The data were analysed with one-way analysis of variance followed by Tukey's test. Results: The addition of 0.5–1.5% silver oxide nanoparticles to feldspathic porcelain increased the flexural strength. The addition of 1.0–4.0% titanium oxide nanoparticles to feldspathic porcelain increased the flexural strength. Either 0.5–1.0% silver oxide or 3.0–4.0% titanium oxide nanoparticles in feldspathic porcelain increased the shear bond strength to zirconia core. Conclusion: The flexural strength of porcelain veneer and the bond strength at porcelain-zirconia interface can be improved by adding either 0.5% silver oxide nanoparticles or 4% titanium oxide nanoparticles to porcelain powder.
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Laser irradiation prevents root caries: Microhardness and scanning electron microscopy analysis |
p. 198 |
Cesar P Lepri, Denise T De Castro, Vinícius R Geraldo-Martins, Juliana J Faraoni, Regina G Palma-Dibb DOI:10.4103/ijdr.ijdr_140_21
Context: A promising option for the prevention of dental caries is the use of laser irradiation. Aims: Evaluate the effects of Er:YAG, Nd:YAG, and CO2 laser irradiation, associated or not to 2% sodium fluoride (2% NaF), on root caries prevention. Material and Methods: One hundred and four human root dentin samples were divided in eight groups (n = 13). A 9-mm2-area on each dentin sample was delimited and treated as follows: G1: no treatment (control); G2: 2% NaF; G3: Er:YAG; G4: 2% NaF + Er:YAG; G5: Nd:YAG; G6: 2% NaF + Nd:YAG; G7: CO2; G8: 2% NaF + CO2. When used, the 2% NaF was applied before irradiation for 4 min. The samples were subjected to a 2-week cariogenic challenge, consisted of daily immersion in de-remineralizing solutions for 6 h and 18 h, respectively. Knoop hardness (KHN) were evaluated (10 g and 20 s) at different depths from the dentin surface. The samples (n = 3) were prepared for scanning electron microscopy (SEM). Microhardness data were analysed by one-way analysis of variance (ANOVA) and Fisher's test (α = 5%). Results: The Er:YAG laser group (KHN = 41.30) promoted an increase in acid resistance of the dentin (P < 0.05) when compared to all groups. There was no synergism between laser irradiation and 2% NaF application. Morphological changes were observed after irradiation with all lasers; carbonization and cracks were also observed, except when Er:YAG were used. Conclusions: Er:YAG laser irradiation can safely increase the acid resistance of the dentin surface of the root, since it promoted a significant increase in surface hardness. The application of 2% NaF did not result in a synergistic effect.
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SYSTEMATIC REVIEW AND META-ANALYSIS |
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The outcome of partial pulpotomy in traumatized permanent anterior teeth – A systematic review and meta-analysis |
p. 203 |
S Madhumita, Dhanavel Chakravarthy, S Vijayaraja, S Ajith Kumar, DS Kavimalar DOI:10.4103/ijdr.ijdr_1150_21
Background: Partial pulpotomy is a procedural intervention that can maintain the vitality of pulp during the management of traumatized permanent teeth with pulpal involvement. Aim: To evaluate whether partial pulpotomy can be considered a reliable conservative treatment option for treating traumatized permanent anterior teeth with pulpal involvement. Methodology: A computerized systematic search was performed in PubMed, Science Direct, Cochrane, and LILACS databases from 1980 to May 2021. Five studies were included in the final analysis. Quality assessment, Meta-analysis, and Publication bias of the studies were evaluated. This systematic review was registered in PROSPERO (ID – CRD42021262031). Result: The comprehensive Meta-Analysis Software was used. The test of the heterogeneity was analysed using Cochran's Q statistics. The Q value was 7.186 (df = 6) with a P value of 0.3 and I2 as 16.5%. The studies were considered homogenous, and the fixed-effect model showed an overall point estimate of 0.89 with a 95% confidence interval (0.86–0.91). The Begg and Egger funnel plot indicated that there was no publication bias in the included studies. Conclusion: Evidence indicates that partial pulpotomy may be considered a reliable definitive treatment option in asymptomatic traumatized permanent anterior teeth with exposed pulp rather than total pulpotomy.
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SHORT COMMUNICATION |
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Enhanced access and isolation by simple modifications of dental armamentarium |
p. 209 |
Rajatha V Shetty, Sherin Geevarghese, Stuti , Rhea S Mathew, Shruthi Nagaraja DOI:10.4103/ijdr.IJDR_866_19
A good armamentarium facilitates the efficient working of the dentist which in turn improves the quality of treatment rendered to the patient. The present invention of the unit consisting of the flexible mirror attached to the suction and the dual suction tip aims at improving the clinical efficiency of dental treatments provided. This compact unit is designed to improve the visualization and isolation of the operating field. It is also easy to fabricate and alleviates the very relevant shortcomings of clinical work.
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EPIDEMIOLOGICAL WORK |
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Perceptions and challenges of a first-year dental student – A cross-sectional study |
p. 212 |
Manhar Kaur Shinh, Rajesh Kshirsagar, Ridhi Narang, Praveena Venkatesh Kulkarni, Amanish Singh, Harjupinder Kaur DOI:10.4103/ijdr.ijdr_402_21
Introduction: Undergraduate dental training is demanding and rigorous, unaware students face a lot of challenges after entering the course. Thus, the study aims to find out from a dental sophomore the challenges they face during the first year of dental school. Methodology: An e-questionnaire study was conducted on 932 second-year Bachelor of Dental Surgery students of India. The questions help us gauge problems and hurdles faced by a dental sophomore like information related to difficulty levels, laborious nature and so on. Chi-square test is to find out relativity and association between the variables. Results: Pre-clinical prosthodontics was found the most laborious and a gender-wise significant difference (P < 0.01) was noted amongst females (437, 71.06%) and males (157, 49.53%). Conclusion: This study highlighted that students are usually unaware about the course, the type of content reading, learning, laborious nature of practical work and so on.
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CASE REPORTS |
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Rare case of granular cell tumour at 16 years – A case report |
p. 216 |
SM Balaji, Preetha Balaji DOI:10.4103/ijdr.ijdr_469_22
Rationale: Granular cell tumours (GCTs) of the tongue are a rare, soft tissue pathological entity at young ages. This case report aims to present one such case. Patient Concerns: A 16-year-old female patient sought treatment for a small, slow-growing, painless nodule in the dorsum of the tongue since six months. She underwent successful orthodontic treatment in recent past and is in the retention phase. Diagnosis: Excisional biopsy revealed the lesion to be a GCT under histopathology. Treatment: The patient was treated for an abnormal, small, slow-growing, painless nodule in the dorsum of the tongue. Outcomes: The patient had satisfactory esthetics and early diagnosis. The active intervention dispelled the confusion about the role of trauma and orthodontics appliance in the etiology of GCT in this particular case to the patient. Take-away Lessons: GCT can occur at any age. Early diagnosis and corrective surgery would help to avoid late complications.
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Glanzmann thrombasthenia: Use of hemocoagulase (BotroClot) for arrest of bleeding during a primary tooth endodontic procedure |
p. 219 |
Lalitha S Jairam, Sunil Babu Kotha DOI:10.4103/ijdr.ijdr_1191_21
The Rationale: Glanzmann thrombasthenia is a rare platelet disorder affecting 0.0001% of the population. Dentists may often be unaware of this condition, and manipulation of soft tissue can lead to grave consequences, which may even result in fatality. Patient Concerns: In this case report, a 4-year-old patient with Glanzmann thrombasthenia reported to the department with a chief complaint of a discoloured tooth. Clinical Findings: On examination, 51 was nonvital, and pulpectomy was the treatment planned. The non-vital anterior tooth was treated with a pulpectomy procedure. There was uncontrolled bleeding during the procedure. Treatment: A topical solution of BotroClot was used to arrest the bleeding, and obturation was completed following that. The post-operative period was uneventful. Take-away Lessons: Case report explored the use of a topical hemostatic agent to arrest bleeding from the canal. This case report warrants eliciting a thorough medical history before any dental procedure.
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Novel management of internal root resorption with vertical root fracture using mineral trioxide aggregate - A case report |
p. 223 |
Chellaswamy Savarimalai Karumaran, Anil Kumar Ramachandran, Nirmala Chandrasekaran, Corrine Esther Manuel, Deepthi Kattula DOI:10.4103/ijdr.ijdr_350_21
Introduction: This case report presents the diagnosis and management of extensive internal root resorption (IRR) in a 17-year-old male patient, with a 9-year-old history of trauma. Method: The affected tooth 21 was associated with vertical root fracture (VRF) and incomplete apex closure with a substantial loss of tooth structure, including dentin and cementum. Encouraged by a healthy periodontal condition, the choice was made to use mineral trioxide aggregate (MTA) to reconstruct and reinforce the resorptive defect and the fractured segment. A composite veneer was placed to enhance the aesthetics. Result: A follow-up of the patient after 2 years revealed healing with a resolution of the lesion. Conclusion: This case report highlights the use of MTA as a lone-standing filling material for the treatment of IRR with VRF in a non-vital immature tooth.
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