Journal of International Society of Preventive & Community Dentistry最新文献

{"title":"Plaque Removal Efficiency of Chewable Toothbrushes among 10-12-yearold Children: A Randomized Control Trial.","authors":"Sridhar Nekkanti,&nbsp;Kanwardeep Kaur,&nbsp;Shwetha Balagopal,&nbsp;Priyanka Agarwal","doi":"10.4103/jispcd.JISPCD_339_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_339_20","url":null,"abstract":"<p><strong>Aim and objectives: </strong>Toothbrushing is one of the most important factors in controlling plaque accumulation and dental caries. There are vast varieties of toothbrushes available in the market. This study was designed to evaluate the effectiveness of novel chewable toothbrushes as compared to manual toothbrushes in plaque removal among 10-12-year-old children.</p><p><strong>Materials and methods: </strong>This randomized controlled trial was conducted on 40 healthy children aged between 10 and 12 years of age who were randomly assigned to either of the groups: Group I--Chewable Toothbrushes and Group II--Manual Toothbrushes. Following oral prophylaxis, baseline records of oral hygiene indices (Simplified oral hygiene index (OHI-S) in indexed teeth and Turesky modification of Quigley Hein plaque index (TMQHI) were taken. Baseline Saliva samples were collected and sent for <i>Streptococcus mutans</i> counts. Children were then instructed to use their respective toothbrush twice daily for a week. Oral hygiene indices and <i>S. mutans</i> counts were repeated after 1 week.</p><p><strong>Results: </strong>Differences in pre-brushing and post-brushing plaque scores and salivary <i>S. mutans</i> counts were statistically significant when compared using paired-sample <i>t</i> test and independent-sample <i>t</i> test. There was a significant reduction in salivary <i>S. mutans</i> counts after using both chewable and manual toothbrushes. However, there was no statistically significant difference between the two groups (<i>P</i> = 0.08).</p><p><strong>Conclusion: </strong>Chewable toothbrushes are equally effective in plaque control when compared to manual toothbrushes. These can be a reliable alternative for children who lack manual dexterity.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"759-765"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/0f/13/JISPCD-10-759.PMC7791580.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38747156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness of Alcohol-free Mouth Rinse Containing Essential Oils and Fluoride as an Oral Hygiene Adjunct among Pregnant Thai Women: A Randomized Clinical Trial.","authors":"Jaranya Hunsrisakhun,&nbsp;Supitcha Talungchit,&nbsp;Supawadee Naorungroj","doi":"10.4103/jispcd.JISPCD_289_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_289_20","url":null,"abstract":"<p><strong>Aim: </strong>This 3-month, double-blind, two-center, parallel, randomized controlled clinical trial compared the improvement of oral hygiene status from alcohol-free essential oils (EO) with 0.05% fluoride mouthwash to the control (0.05% fluoride mouthwash).</p><p><strong>Materials and methods: </strong>One hundred and fifty-four pregnant women were clinically examined to determine Modified Gingival Index (MGI), Plaque Index (PI), and Winkel Tongue Coating Index (WTCI) at baseline, 2 weeks, and 3 months by calibrated examiners. After supragingival scaling and provision of a tooth brushing method, participants were randomly assigned to daily use of alcohol-free EO or the control rinse for 30s at bedtime. Repeated measures of analysis of variance (ANOVA) were performed to assess the effectiveness of alcohol-free EO with 0.05% fluoride mouthwash on MGI, PI, and WTCI scores.</p><p><strong>Results: </strong>One hundred and forty subjects completed the study. The dropout rate of 9.1% (<i>n</i> = 14) was mainly due to loss of follow-up. At baseline, no significant differences were observed between the intervention and the control groups for MGI (1.19±0.57 <i>vs.</i> 1.11±0.48, <i>P</i> = 0.371), PI (1.53±0.56 <i>vs.</i> 1.47±0.48, <i>P</i> = 0.439), and WTCI (0.88±0.48 <i>vs.</i> 0.88±0.50, <i>P</i> = 0.990). There was a statistically significant reduction of MGI, PI, and WTCI scores over time (<i>P</i> < 0.001). However, no significant differences were observed for between-group comparisons for all measured indices at any time point. No adverse effect was reported in either group.</p><p><strong>Conclusion: </strong>At the end of 3-month period, improvement of oral hygiene of pregnancy women in this study was evidence. However, the use of alcohol-free EO mouthwash as supplements to the daily oral hygiene did not provide a significant improvement in terms of plaque, gingival, and tongue coating indices.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"803-812"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/3d/b2/JISPCD-10-803.PMC7791593.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38812908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of Lignocaine with Buprenorphine versus Lignocaine in the Management of Postoperative Pain after Minor Oral Surgical Procedures: A Systematic Review and Meta-analysis.","authors":"Anupam Singh,&nbsp;Srikanth Gadicherla,&nbsp;Komal Smriti,&nbsp;Kalyana C Pentapati","doi":"10.4103/jispcd.JISPCD_316_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_316_20","url":null,"abstract":"<p><p>We aimed to review the efficacy of lignocaine with buprenorphine versus lignocaine alone in the management of postoperative pain after minor oral surgical procedures. Randomized controlled trials evaluating the efficacy of use of lignocaine with buprenorphine versus lignocaine for intra-oral procedures were included by searching multiple databases. Outcomes assessed were onset of the time of anesthesia in seconds, duration of postoperative analgesia, postoperative pain (maximal follow-up), the number of rescue analgesics required, and adverse events. The search strategy yielded 167 publications for the title and abstract screening out of which only two trials were included for full-text screening. There was considerable heterogeneity among the included studies with regards to the outcomes assessed. The need for rescue analgesics was the only outcome that was included for meta-analyses. Forest plot showed that lignocaine with buprenorphine compared to lignocaine showed a significantly lower requirement of rescue analgesics (-0.22[-2.9,-1.55]). No trial reported any adverse effects. The results show that lignocaine with buprenorphine is effective in reducing the number of rescue analgesics required by the patient.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"686-691"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/08/8f/JISPCD-10-686.PMC7791576.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39149877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implant Bio-mechanics for Successful Implant Therapy: A Systematic Review.","authors":"Khaled Mosfer Alzahrani","doi":"10.4103/jispcd.JISPCD_138_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_138_20","url":null,"abstract":"<p><strong>Background: </strong>Dental implants are considered the best treatment option for replacement of missing teeth due to high survival rates and diverse applications. However, not all dental implant therapies are successful and some fail due to various biological and or/mechanical factors. The objective of this study was to systematically review primary studies that focus on the biomechanical properties of dental implants in order to determine which biomechanical properties are most important for success of dental implant therapy.</p><p><strong>Materials and methods: </strong>An electronic database search was performed using MEDLINE (PubMed), EMBASE, Google Scholar, and CAB Abstracts. Six principal biomechanical properties were considered to prepare the search strategy for each database using key words and Boolean operators. Human and animal studies (observational studies, trials, and <i>in vitro</i> studies) were included in this review. Human studies that were considered eligible needed to have subjects above 18 years who received permanent restorations after implant surgery and followed up for at least 6 months after receiving permanent restorations. Studies with subjects who had absolute contraindications at the time of dental implant surgery were excluded.</p><p><strong>Results: </strong>In total, 28 studies were included in the review after application of the eligibility criteria; 18 <i>in vitro</i> studies, 5 cohort clinical studies, 3 animal studies, and 2 nonrandomized trials. Six <i>in vitro</i> studies assessed loss of preload, five <i>in vitro</i> studies assessed fatigue strength, four assessed implant abutment connection design, and one assessed implant diameter. Two nonrandomized trials assessed torque and six observational studies assessed the effect of cantilevers. Gold alloy coating of abutment screws resulted in higher preload values followed by titanium alloy coating and gold coating; there was a difference in preload values between coated and uncoated screws when tightened repeatedly. Preload values decreased as a function of time with majority of preload loss occurred within 10s of tightening. The 8-degree internal conical implant performed better than the internal hex design. Higher rate of complications (porcelain chipping, de-cementation) was observed in the cantilever groups in studies.</p><p><strong>Conclusion: </strong>Biomechanical properties of implants like preload, torque, cantilever design, implant abutment design have profound effects on the survival rates of dental implants. With limiations, this review provides some important parameters to consider for successful implant therapy.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"700-714"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e3/5a/JISPCD-10-700.PMC7791586.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39149444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scaffolds--The Ground for Regeneration: A Narrative Review.","authors":"Sourabh Ramesh Joshi,&nbsp;Gowri Swaminatham Pendyala,&nbsp;Pratima Shah,&nbsp;Viddyasagar Prabhakar Mopagar,&nbsp;Neeta Padmawar,&nbsp;Meghana Padubidri","doi":"10.4103/jispcd.JISPCD_198_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_198_20","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to comprehensively review the various biomaterials used as scaffolds, rates of biodegradability of natural, artificial and composite hybrid scaffolds, and the role of controlled biodegradability in tissue engineering.</p><p><strong>Materials and methods: </strong>An electronic search for systematic review was conducted in PubMed/MEDLINE (www.ncbi.nlm.nih.gov), Cochrane (www.cochrane.org), Scopus (www.scopus.com) databases, and dental journals related to endodontics and pediatric dentistry to identify the research investigations associated with the degradation profiles, factors relating to degradation, rates of biodegradability and the role of controlled biodegradability of natural, artificial and composite scaffolds. A sample of 17 relevant studies and case reports were identified in our search of 100 using simple random sampling.</p><p><strong>Results: </strong>Naturally derived scaffolds degrade at a much higher rate than artificial and composite scaffolds. The degradation profiles of composite scaffolds can be much better controlled than naturally derived scaffolds.</p><p><strong>Conclusion: </strong>Composite scaffolds are more favorable as compared to natural or artificial scaffolds, as it has superior mechanical properties, minimal immune response, and a controlled rate of degradation and consequent tissue regeneration.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"692-699"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/56/02/JISPCD-10-692.PMC7791577.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39149876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Regenerative Potential of Platelet-rich Fibrin Alone and in Combination with Bovine Bone Graft in Intraosseous Defect by Single Flap Approach: A Clinical and Radiographic Study.","authors":"Bhaumik Thakkar,&nbsp;Sarath Chandran,&nbsp;Shivlal Vishnoi,&nbsp;Priyadarshini Nadig,&nbsp;Ruchi Raval,&nbsp;Priyanka Doshi","doi":"10.4103/jispcd.JISPCD_200_19","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_200_19","url":null,"abstract":"<p><strong>Aim: </strong>To compare the regenerative potential of platelet-rich fibrin alone and in combination with bovine bone graft in intraosseous defect by the single flap approach.</p><p><strong>Materials and methods: </strong>A total of 32 sites of intrabony defects were selected and were treated with platelet-rich fibrin (PRF) alone or in combination with bovine bone graft. Clinical parameters [Gingival index (GI), probing depth (PD), clinical attachment level (CAL), Gingival recession, and radiographic parameters (defect fill, alveolar crest level, and defect depth)] were recorded at baseline, 3 months, and 6 months.</p><p><strong>Results: </strong>Statistical analysis was done by independent and paired <i>t</i>-test. There were statistically significant changes in GI, PD reduction, CAL gain, defect fill, alveolar crest level changes, and defect depth resolution from baseline, 3 months, and 6 months in both the groups (<i>P</i> < 0.001). On intergroup comparison, Group II showed statistically significant changes in a reduction in pocket depth and defect depth resolution at <i>P</i> < 0.001.</p><p><strong>Conclusion: </strong>PRF in combination with bovine bone graft was more effective in the treatment of intrabony defects.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"743-751"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/38/4a/JISPCD-10-743.PMC7791578.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38747159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antifungal Efficacy of Four Different Concentrations of the Essential Oil of <i>Cinnamomum zeylanicum</i> (Canela) against <i>Candida albicans</i>: An <i>In Vitro</i> Study.","authors":"René Hurtado,&nbsp;Nimia Peltroche,&nbsp;Franco Mauricio,&nbsp;Walter Gallo,&nbsp;Daniel Alvítez-Temoche,&nbsp;Luzmila Vilchez,&nbsp;Frank Mayta-Tovalino","doi":"10.4103/jispcd.JISPCD_251_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_251_20","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study was to compare <i>in vitro</i> the antifungal efficacy of the essential oil of <i>Cinnamomum zeylanicum</i> (Canela) (EOC) at 25%, 50%, 75%, and 100% against strains of <i>Candida albicans</i> ATCC 10231.</p><p><strong>Materials and methods: </strong>The design was experimental, <i>in vitro</i>, prospective, and longitudinal study, having a sample of <i>n</i> = 30 petri dishes per six groups. The test was conducted in the microbiology laboratory of the <i>Universidad Nacional Federico Villarreal</i>. The essential oil was prepared by steam distillation, which means that the pressure steam enters in connection with the plant cells and breaks them, releasing the essence and trapping it in drops of water. Cinnamon essential oil was obtained using the hydrodistillation method, subsequently the oil obtained was dehydrated with sodium sulfate and then filtered at 0.22 µm. Then the vials were stored at a temperature of 4°C. Finally, <i>Candida albicans</i> ATCC 10231 was used as the biological material. Antifungal efficacy was measured by the Kirby-Bauer method (disk diffusion).</p><p><strong>Results: </strong>It was found that in the 24-h group the concentration that had the greatest antifungal effect was 100% EOC with a mean of 22.1 ± 11 mm; however, the lowest antifungal activity was seen in the 25% EOC with 17.9 ± 1.6 mm. On the contrary, in the 48-h group, it was shown that the highest antifungal efficacy was also observed in the 100% EOC with an average of 31.2 ± 3.2 mm, but the lowest antifungal activity was in the 25% EOC with 22.6 ± 1.7 mm. Although in both groups, both at 24 and 48h, nystatin was the one with the lowest antifungal efficacy 15.1 ± 1.0 and 19.9 ± 0.1 mm, respectively.</p><p><strong>Conclusions: </strong>EOC had a better statistically significant antifungal effect compared to nystatin. Otherwise, on analysis of the results in different concentrations, the EOC showed a directly proportional antifungal effectiveness as the concentration against the strains of <i>C. albicans</i> ATCC 10231 increased, compared to nystatin, suggesting its potential use as a possible attractive therapeutic alternative for the control of diseases caused by strains of <i>C. albicans</i> resistant to nystatin.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"724-730"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/56/53/JISPCD-10-724.PMC7791585.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39149880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Hydrogen Peroxide and Cetylpyridinium Chloride as Bacterial Decontaminants of Dental Unit Water Lines at a Private Peruvian Dental School.","authors":"Arnaldo Munive-Degregori,&nbsp;Frank Mayta-Tovalino,&nbsp;Walter Gallo,&nbsp;Silvia Luza,&nbsp;Franco Mauricio,&nbsp;Saul Ilizarbe,&nbsp;Arnaldo Munive-Méndez","doi":"10.4103/jispcd.JISPCD_265_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_265_20","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to evaluate the hydrogen peroxide and cetylpyridinium chloride as bacterial decontaminants of dental unit water lines at a private Peruvian dental school.</p><p><strong>Materials and methods: </strong>Water samples were obtained from 66 dental units of a University Dental Clinic before decontamination treatment and at days 3 and 7 thereafter. The biofilm treatments were applied equitably among the two treatment groups (<i>n</i> = 22) and one negative control (distilled water). The samples obtained on each collection day were taken to the biochemical laboratory in thermal boxes and then diluted, seeded, and incubated at 37°C for 24h to count colony forming units per milliliter (CFU/mL).</p><p><strong>Results: </strong>The samples to which hydrogen peroxide were applied had a mean of 1.53 × 10⁵ CFU/mL before application, 0.04 × 10⁵ CFU/mL at day 3, and 0.03 × 10⁵ CFU/mL at day 7, whereas the samples undergoing cetylpyridinium chloride treatment had a mean of 1.74 × 10⁵ CFU/mL before application, 615.38 CFU/mL on day 3, and 307.69 CFU/mL on day 7. Distilled water treatment showed a mean of 1.72 × 10⁵ ± 0.39 × 10⁵ CFU/mL at baseline, 1.51 × 10⁵ ± 1.40 × 10⁵ CFU/mL at day 3, and a mean of 1.74 × 10⁵ ± 0.47 × 10⁵ CFU/mL at day 7. Statistically significant differences were found among the three treatment groups at days 3 (<i>P</i> ≤ 0.001) and 7 (<i>P</i> ≤ 0.001) but not at baseline (<i>P</i> = 0.306).</p><p><strong>Conclusions: </strong>The antibacterial effect of cetylpyridinium chloride was significantly greater than that of hydrogen peroxide and distilled water, and can, therefore, be used for bacterial control in the water lines of dental units.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"731-735"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f5/98/JISPCD-10-731.PMC7791582.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38747155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison and Evaluation of Linear Dimensional Accuracy of Three Elastomeric Impression Materials at Different Time Intervals Using Vision Inspection System: An <i>In Vitro</i> Study.","authors":"Shabab Ahmed Khan,&nbsp;Tushar,&nbsp;Sumaiya Nezam,&nbsp;Puja Singh,&nbsp;Neelu Kumari,&nbsp;Shashank Shekher Singh","doi":"10.4103/jispcd.JISPCD_282_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_282_20","url":null,"abstract":"<p><strong>Background: </strong>Making an impression represents a crucial step in fabrication of a prosthesis. Elastomers are the most commonly used materials for precise and accurate recording and reproduction of tooth morphology and surrounding soft tissue.</p><p><strong>Aims and objective: </strong>The aim of this study was to compare and evaluate the linear dimensional accuracy of three elastomeric impression materials: addition silicone, condensation silicone, and polyether at different time intervals up to 15 days using a vision inspection system.</p><p><strong>Materials and methods: </strong>Dimensional accuracy of impression materials was measured at certain designated time periods using stainless steel die. The impressions of die were made using one representative material of each type of elastomeric impression material. The die along with the impression material in the mold was held using a clamp and put in a water bath maintained at mouth temperature. The linear dimensional changes taking place in each material with time were measured using the vision inspection system.</p><p><strong>Results: </strong>On comparison with master die impression at 30min, 1h, and 1½ h time interval, a significant decreased mean dimension of condensation silicone was observed, whereas addition silicone and polyether showed statistically nonsignificant difference. At 2, 3, 4, and 12h time span, a significant difference in mean dimension of addition and condensation silicone was noted, whereas polyether showed a nonsignificant difference. At 24h, 1 week, and 15 days duration, on comparison with the master die, a significant reduction in mean dimension of condensation silicone was discovered, whereas addition silicone and polyether showed nonsignificant difference.</p><p><strong>Conclusion: </strong>Polyether showed significantly lesser dimensional changes among all three materials, though the differences were small enough to be considered clinically acceptable.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"736-742"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e2/e8/JISPCD-10-736.PMC7791581.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38747158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Evaluation of Efficacy of Diode Laser and Clinpro XT Varnish for Treatment of Dentin Hypersensitivity: A Randomized Clinical Trial.","authors":"Bhavika Alpesh Bhavsar,&nbsp;Michelle Vaz,&nbsp;Kamei Neilalung,&nbsp;Tanisha Das,&nbsp;Swarnaditya Majumdar,&nbsp;Jagriti Talukdar","doi":"10.4103/jispcd.JISPCD_356_20","DOIUrl":"https://doi.org/10.4103/jispcd.JISPCD_356_20","url":null,"abstract":"<p><strong>Context: </strong>Dentin hypersensitivity (DH) is a very common dilemma and often results in temporary relief by the conventional treatment method. An <i>in vivo</i> comparative study of various methods and materials helps in evaluation of a superior method to provide a long-lasting relief.</p><p><strong>Aim: </strong>The aim of this study was to evaluate the efficacy of diode laser (DL) and Clinpro XT Varnish for managing DH.</p><p><strong>Materials and methods: </strong>This study was a randomized, single-blinded, clinical trial, designed, adhering to the CONSORT (Consolidated Standards of Reporting Trials) Guidelines using DL and fluoride-based varnish for managing DH. A total of 40 teeth were selected from eight patients and randomly divided into two groups. All patients received tactile and air syringe stimulus to assess for DH and a visual analog scale (VAS) was used to obtain readings at baseline, 15min, 1 week, and 3 weeks, posttreatment. Student's <i>t</i> test was used, paired <i>t</i> test was for the intragroups, and unpaired <i>t</i> test was for intergroups.</p><p><strong>Results: </strong>This study showed that the effect of DL and Clinpro XT Varnish results in a significant decrease of DH. However, success decreased gradually over time.</p><p><strong>Conclusion: </strong>Clinpro XT Varnish presented superior immediate effect and DL effect tends to become better with time. Hence, both had good results in the end.</p>","PeriodicalId":520674,"journal":{"name":"Journal of International Society of Preventive & Community Dentistry","volume":" ","pages":"779-785"},"PeriodicalIF":1.1,"publicationDate":"2020-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/0d/81/JISPCD-10-779.PMC7791592.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38747160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}