Indian Journal of Dental Research最新文献_第8页

Dental Research and Noncommunicable Diseases. 牙科研究与非传染性疾病。

Indian Journal of Dental Research Pub Date : 2024-04-01 Epub Date: 2024-10-03 DOI: 10.4103/ijdr.ijdr_664_24

S M Balaji

引用次数: 0

Evaluation of Stresses Generated with Two Different Self-Ligating Orthodontic Bracket Systems - A Finite Element Analysis. 评估两种不同的自锁式正畸托槽系统产生的应力--有限元分析。

Indian Journal of Dental Research Pub Date : 2024-04-01 Epub Date: 2024-09-14 DOI: 10.4103/ijdr.ijdr_937_23

Mohit Awaradi, Roshan M Sagarkar, Prashantha G Shivamurthy, Silju Mathew, Sharanya Sabrish, Nirajita Bhaduri

{"title":"Evaluation of Stresses Generated with Two Different Self-Ligating Orthodontic Bracket Systems - A Finite Element Analysis.","authors":"Mohit Awaradi, Roshan M Sagarkar, Prashantha G Shivamurthy, Silju Mathew, Sharanya Sabrish, Nirajita Bhaduri","doi":"10.4103/ijdr.ijdr_937_23","DOIUrl":"10.4103/ijdr.ijdr_937_23","url":null,"abstract":"Aim: To determine stresses generated in the posterior teeth region by two different self-ligating systems, 3M Unitek SmartClip and Damon Q Self-ligating brackets, using the finite element method (FEM).Methodology: Computed tomography (CT) scan of maxilla was taken using Mimics software, and the Dicom data were imported into Hypermesh 13.0 software to convert it into a geometric model and then into FEM. Physical models of both the brackets were constructed and positioned on the teeth. Post archwire modeling, contact is defined between the bracket slot and 0.014\" NiTi arch wire. The final assembled model was exported to ANSYS 12.1 for analysis, and 60 grams of load was applied at the ends of the arch wire.Results: On using 0.014\" CuNiTi in both the bracket systems, stresses generated on the root surface were found to be maximum on the first molar region, followed by the first premolar, second molar, canine, and second premolar regions. Comparison between the two bracket systems showed differences in the stresses generated, where higher stresses were generated at all regions in the Damon Q bracket system, except the inter-second premolar region.Conclusion: Maximum stresses were observed with the 3M Unitek SmartClip bracket system at the second premolar cervical region when compared to the Damon Q system. In both the cortical bone and cancellous bone, maximum stresses were observed at the second premolar cervical in the Damon Q bracket system region.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" ","pages":"131-135"},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142286025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Evaluation of Implant-Protected Occlusion in Partially Edentulous Fixed Restoration Using Qualitative and Quantitative Assessment – A Prospective Clinical Trial 通过定性和定量评估对部分无牙颌固定修复体的种植体保护性咬合进行比较评估 - 一项前瞻性临床试验

Indian Journal of Dental Research Pub Date : 2024-02-16 DOI: 10.4103/ijdr.ijdr_191_23

Ramesh Chowdhary, S. Bukkapatnam

{"title":"Comparative Evaluation of Implant-Protected Occlusion in Partially Edentulous Fixed Restoration Using Qualitative and Quantitative Assessment – A Prospective Clinical Trial","authors":"Ramesh Chowdhary, S. Bukkapatnam","doi":"10.4103/ijdr.ijdr_191_23","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_191_23","url":null,"abstract":"\u0000 \u0000 \u0000 To compare and evaluate the occlusal variability/discrepancy recorded using qualitative (articulating paper) and quantitative (T-scan) techniques in partially edentulous implant-supported restorations.\u0000 \u0000 \u0000 \u0000 A total of 20 patients in the age group of 25–61 yrs participated in this study. All the patients had more than one tooth replaced with implant-supported prosthesis. After three months of restoration, occlusion reevaluated was carried out using qualitative (articulating paper) and quantitative (T-scan). T-scan data were used to measure implant occlusion time, occlusion time, and the relative occlusal force (ROFs) on implant prosthesis. And the data were statistically evaluated.\u0000 \u0000 \u0000 \u0000 The T-scan values showed high points on the implants in most of the patients, which could not be evaluated by that of articulating paper outcomes.\u0000 \u0000 \u0000 \u0000 The occlusal harmony achieved from using qualitative analysis of articulating paper was not supported by the finding of the quantitative analysis (T-scan). Also the T-scan provided the time interval of occlusion of the implant-supported restorations, which would help in better defining the implant-protected occlusal.\u0000 \u0000 \u0000 \u0000 The T-scan occlusal analysis system provides ROF and time intervals of occlusal contact. This allows accurate occlusal equilibration of implant-supported restoration according to implant protected occlusal concept.\u0000","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"52 40","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139961350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An In Vitro Comparative Study of the Push-out Bond Strengths of Various Endodontic Sealers to Radicular Dentin 各种牙髓密封剂与根管牙本质的推出粘接强度体外比较研究

Indian Journal of Dental Research Pub Date : 2024-02-16 DOI: 10.4103/ijdr.ijdr_708_22

Mohamed Abdelaziz El Sayed, Safiya Saeed Alderei

{"title":"An In Vitro Comparative Study of the Push-out Bond Strengths of Various Endodontic Sealers to Radicular Dentin","authors":"Mohamed Abdelaziz El Sayed, Safiya Saeed Alderei","doi":"10.4103/ijdr.ijdr_708_22","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_708_22","url":null,"abstract":"\u0000 \u0000 \u0000 The bond strength of an endodontic sealer to the root dentin is an important factor in maintaining the integrity of the root canal seal. The present study aimed to assess the push-out bond strength of three endodontic sealers used with the single-cone obturation technique.\u0000 \u0000 \u0000 \u0000 The root canals of 40 central maxillary incisors were instrumented using ProTaper Universal NiTi rotary files. The roots were divided into 4 groups (N = 10) according to the type of root canal sealers: Group 1 (control group): AH Plus/Gutta-percha lateral condensation technique (LC); Group 2: AH Plus/Gutta-percha single-cone technique (SC); Group 3: GuttaFlow 2/SC; Group 4: Realseal SE/SC. After obturation, each tooth was prepared for push-out assessment. The total and sectional push-out bond strengths were measured and statistically analysed. Furthermore, failure modes were identified microscopically.\u0000 \u0000 \u0000 \u0000 The results indicated that samples in the first group showed the highest total and sectional bond strengths. Samples from other groups showed statistically similar total bond strengths. The highest sectional bond strength was found mainly in the apical root sections. Cohesive failure was predominant for the first group, whereas adhesive failure was predominant in the other groups.\u0000 \u0000 \u0000 \u0000 It could be concluded that the dentin bond strengths of the tested sealers used with the single-cone technique were nearly similar but lower than those of AH Plus/LC. The highest sectional bond strength was observed in the apical thirds. The failure mode was mostly cohesive for AH Plus/LC and adhesive for sealers used with the single-cone obturation technique.\u0000","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"58 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139960933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Choosing Periodontology for Specialty Specialization: Perspective of Dental Undergraduate Students 选择牙周病学作为专科专业：从牙科本科生的角度看牙周病学

Indian Journal of Dental Research Pub Date : 2024-02-08 DOI: 10.4103/ijdr.ijdr_957_21

Prabhati Gupta, Z. Chowdhary, Vikas Singh, Aashima Bajaj, Disha Gupta, Monika Loitongbam

{"title":"Choosing Periodontology for Specialty Specialization: Perspective of Dental Undergraduate Students","authors":"Prabhati Gupta, Z. Chowdhary, Vikas Singh, Aashima Bajaj, Disha Gupta, Monika Loitongbam","doi":"10.4103/ijdr.ijdr_957_21","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_957_21","url":null,"abstract":"\u0000 \u0000 \u0000 The attitudes of dental students to study a particular specialty of dentistry in post-graduation are of great importance as these facilitate workforce planning in the dental sector.\u0000 \u0000 \u0000 \u0000 To assess the attitude of dental students towards choosing periodontology as their future career and to explore demographic variables that affect their choice.\u0000 \u0000 \u0000 \u0000 A cross-sectional survey based on a questionnaire was conducted, including students of the third and fourth years and interns of the dental college. Twenty-seven questions, graded on a Likert scale (5-point) were included in the questionnaire, and the responses were categorised via three attitudes: negative (score 0–21), neutral (score 22–44) and positive (score 45–64). The Chi-square test for proportions was used to examine the differences between groups.\u0000 \u0000 \u0000 \u0000 Among 114 participants, 53 (46.5%) were males and 61 (53.5%) were females. One-third of the respondents had a positive attitude towards selecting periodontology as their future career, and the majority had a neutral perspective, with a few students having a negative attitude (20.2%). Out of the total, 34.2% of respondents had a positive attitude, and 45.6% showed a neutral attitude or perspective.\u0000 \u0000 \u0000 \u0000 Efforts should be intensified, and undergraduate (UG) students should be motivated by broadening the scope of the field in the UG curriculum by the dental council so that the students show considerable interest in pursuing the field as their future career.\u0000","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"79 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139853555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Varied Time Interval and Micro-Current (Direct) on the Level of Biomarker (IL-6) and Rate of Tooth Movement: An Animal Study 不同时间间隔和微电流（直流）对生物标志物（IL-6）水平和牙齿移动速度的影响：一项动物研究

Indian Journal of Dental Research Pub Date : 2024-02-08 DOI: 10.4103/ijdr.ijdr_2_23

Parnita Dwivedi, Ashish Agrawal, Subash Chandra Gupta, Tehmin Chou

{"title":"The Effect of Varied Time Interval and Micro-Current (Direct) on the Level of Biomarker (IL-6) and Rate of Tooth Movement: An Animal Study","authors":"Parnita Dwivedi, Ashish Agrawal, Subash Chandra Gupta, Tehmin Chou","doi":"10.4103/ijdr.ijdr_2_23","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_2_23","url":null,"abstract":"\u0000 \u0000 \u0000 Exogenous application of direct current (DC) on piezoelectric biopolymers results in biochemical modifications in the intracellular/extracellular regions which profoundly affects the pace of bone turnover. A qualitative examination of DC (waveform and frequency) provides ideal qualities of current.\u0000 \u0000 \u0000 \u0000 20 female Wistar rats (Rattus norvegicus) were randomly selected and divided into control (group 1–4 rats) with orthodontic appliance (OA) and experimental groups (OA + Micro-current (MC). Experimental groups were subdivided into four groups (group 2–20 μA/5 sec, 3-20 μA/10 sec, 4-15 μA/5 sec, 5-15 μA/10 sec with four rats in each). The tooth movement was recorded every 24th hours for 7 days. Gingival crevicular fluid (GCF) was collected 6 hr, 12 hr, 24 hr, 3rd day and 168 hrs with the absorbent paper points at specific location around the tooth in control and experiment groups. Histopathological analysis was done on 168 hrs to assess the osteoclastic activity around the root. Interleukin-6 (IL-6) concentration was accessed using enzyme-linked immunosorbent assay (ELISA). The data were subjected to one-way ANOVA and Tukey’s post hoc test.\u0000 \u0000 \u0000 \u0000 There was a statistically significant difference in tooth movement, group 3 (20 μA/10 sec) showed an increased rate of tooth movement on the 168 hrs. The level of IL-6 was maximum on 72 hrs in experimental group 3.\u0000 \u0000 \u0000 \u0000 The study showed time interval/frequency, the waveform, and the amount of current play a significant role in determining bone turnover and rate of tooth movement.\u0000","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":" 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139791940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Choosing Periodontology for Specialty Specialization: Perspective of Dental Undergraduate Students 选择牙周病学作为专科专业：从牙科本科生的角度看牙周病学

Indian Journal of Dental Research Pub Date : 2024-02-08 DOI: 10.4103/ijdr.ijdr_957_21

Prabhati Gupta, Z. Chowdhary, Vikas Singh, Aashima Bajaj, Disha Gupta, Monika Loitongbam

{"title":"Choosing Periodontology for Specialty Specialization: Perspective of Dental Undergraduate Students","authors":"Prabhati Gupta, Z. Chowdhary, Vikas Singh, Aashima Bajaj, Disha Gupta, Monika Loitongbam","doi":"10.4103/ijdr.ijdr_957_21","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_957_21","url":null,"abstract":"\u0000 \u0000 \u0000 The attitudes of dental students to study a particular specialty of dentistry in post-graduation are of great importance as these facilitate workforce planning in the dental sector.\u0000 \u0000 \u0000 \u0000 To assess the attitude of dental students towards choosing periodontology as their future career and to explore demographic variables that affect their choice.\u0000 \u0000 \u0000 \u0000 A cross-sectional survey based on a questionnaire was conducted, including students of the third and fourth years and interns of the dental college. Twenty-seven questions, graded on a Likert scale (5-point) were included in the questionnaire, and the responses were categorised via three attitudes: negative (score 0–21), neutral (score 22–44) and positive (score 45–64). The Chi-square test for proportions was used to examine the differences between groups.\u0000 \u0000 \u0000 \u0000 Among 114 participants, 53 (46.5%) were males and 61 (53.5%) were females. One-third of the respondents had a positive attitude towards selecting periodontology as their future career, and the majority had a neutral perspective, with a few students having a negative attitude (20.2%). Out of the total, 34.2% of respondents had a positive attitude, and 45.6% showed a neutral attitude or perspective.\u0000 \u0000 \u0000 \u0000 Efforts should be intensified, and undergraduate (UG) students should be motivated by broadening the scope of the field in the UG curriculum by the dental council so that the students show considerable interest in pursuing the field as their future career.\u0000","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"123 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139793917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Varied Time Interval and Micro-Current (Direct) on the Level of Biomarker (IL-6) and Rate of Tooth Movement: An Animal Study 不同时间间隔和微电流（直流）对生物标志物（IL-6）水平和牙齿移动速度的影响：一项动物研究

Indian Journal of Dental Research Pub Date : 2024-02-08 DOI: 10.4103/ijdr.ijdr_2_23

Parnita Dwivedi, Ashish Agrawal, Subash Chandra Gupta, Tehmin Chou

{"title":"The Effect of Varied Time Interval and Micro-Current (Direct) on the Level of Biomarker (IL-6) and Rate of Tooth Movement: An Animal Study","authors":"Parnita Dwivedi, Ashish Agrawal, Subash Chandra Gupta, Tehmin Chou","doi":"10.4103/ijdr.ijdr_2_23","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_2_23","url":null,"abstract":"\u0000 \u0000 \u0000 Exogenous application of direct current (DC) on piezoelectric biopolymers results in biochemical modifications in the intracellular/extracellular regions which profoundly affects the pace of bone turnover. A qualitative examination of DC (waveform and frequency) provides ideal qualities of current.\u0000 \u0000 \u0000 \u0000 20 female Wistar rats (Rattus norvegicus) were randomly selected and divided into control (group 1–4 rats) with orthodontic appliance (OA) and experimental groups (OA + Micro-current (MC). Experimental groups were subdivided into four groups (group 2–20 μA/5 sec, 3-20 μA/10 sec, 4-15 μA/5 sec, 5-15 μA/10 sec with four rats in each). The tooth movement was recorded every 24th hours for 7 days. Gingival crevicular fluid (GCF) was collected 6 hr, 12 hr, 24 hr, 3rd day and 168 hrs with the absorbent paper points at specific location around the tooth in control and experiment groups. Histopathological analysis was done on 168 hrs to assess the osteoclastic activity around the root. Interleukin-6 (IL-6) concentration was accessed using enzyme-linked immunosorbent assay (ELISA). The data were subjected to one-way ANOVA and Tukey’s post hoc test.\u0000 \u0000 \u0000 \u0000 There was a statistically significant difference in tooth movement, group 3 (20 μA/10 sec) showed an increased rate of tooth movement on the 168 hrs. The level of IL-6 was maximum on 72 hrs in experimental group 3.\u0000 \u0000 \u0000 \u0000 The study showed time interval/frequency, the waveform, and the amount of current play a significant role in determining bone turnover and rate of tooth movement.\u0000","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139852023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Temporary Anchorage Device Misplaced into Infratemporal Space - A Case Report. 临时锚定装置误入颞下间隙 - 病例报告。

Indian Journal of Dental Research Pub Date : 2024-01-01 Epub Date: 2024-06-20 DOI: 10.4103/ijdr.ijdr_143_23

R Mahesh Kumar, Subham Dutta, Swadhinata Handique, C P Sateesh

引用次数: 0

Assessment of Phubbing, Smart Phone Addiction and Related Psychological Variables among Dental Undergraduates: A Multicentric Study. 口腔医学本科生的嗜睡、智能手机成瘾及相关心理变量评估：一项多中心研究。

Indian Journal of Dental Research Pub Date : 2024-01-01 Epub Date: 2024-06-20 DOI: 10.4103/ijdr.ijdr_565_23

Deeksha Gijwani, Manu Batra, Aanchal Jindal, Dwivedi R Vishnupratap, Puneet Kaur

{"title":"Assessment of Phubbing, Smart Phone Addiction and Related Psychological Variables among Dental Undergraduates: A Multicentric Study.","authors":"Deeksha Gijwani, Manu Batra, Aanchal Jindal, Dwivedi R Vishnupratap, Puneet Kaur","doi":"10.4103/ijdr.ijdr_565_23","DOIUrl":"10.4103/ijdr.ijdr_565_23","url":null,"abstract":"Background: Internet Addiction and phubbing are prevalent disruptive behaviours among students. The aim of this study was to assess the relationship between phubbing, smartphone addiction and some of the related psychological effects among dental undergraduates.Materials and methods: A multi-centric cross-sectional pre-validated questionnaire-based study was conducted among undergraduate students of five different dental colleges across India. The questionnaire included the Phubbing Scale, Barratt Impulsiveness Scale (BIS), Smartphone Application-based Addiction Scale (SABAS), and Rosenberg Self-Esteem Scale (RSES). The data were analysed with IBM SPSS version 21, followed by a t-test, analysis of variance (ANOVA), and Spearmen's co-relation to find the association between different psychological variables among study subjects.Results: The total sample comprise of 1226 with mean age of 22.35. The SABAS showed a higher mean ± standard deviation (SD) score (3.17 ± 0.93). The Phubbing Scale showed a positive correlation with the SABAS (0.658), the results were found to be highly statistically significant (P = 0.01).Conclusion: The present study found a higher prevalence of phubbing and smartphone addiction among dental students. Our results showed that impulsiveness leads to internet addiction and thus phubbing is becoming a way to find solace during communication to escape anxiety and distress.","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"13-17"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0