The Journal of Indian Prosthodontic Society最新文献

Aim: Transfer from a wheelchair and discomfort in dental chair are two important barriers for access to dental care among wheelchair-bound patients. The authors have devised an automated wheelchair recliner that helps to mimic the dental chair functioning at wheelchair itself. The aim of this study was to analyze the performance and acceptability of wheelchair recliner among wheelchair-bound patients.

Settings and design: Tertiary care settings, cross-sectional design.

Materials and methods: A total of 100 wheelchair-bound adult patients (aged >21 years) were evaluated for acceptability of the recliner. The patients were assessed using eight-item covering patient comfort/acceptability related to positioning, reclining, repositioning, fear of falls, joy, discomfort, perception regarding dentist's discomfort, and use in future on a scale of 0-4 with 0 indicating least satisfying and four indicating most satisfying experience. Overall, patient experience was graded as poor, fair, good, very good, and excellent. The Chi-square test was used to compare the results.

Statistical analysis used: IBM Stats package 21.0 was used. Mean ± standard deviation, Numbers/percentages and Chi-square test were used to compare results. The confidence level of the study was 95%.

Results: The age of patients ranged from 22 to 83 years (mean age 52.26 ± 18.58 years). Majority were males (58%) and had temporary (60%) disability. On a 4-point scale, the mean scores of patients ranged from 2.47 ± 1.23 (positioning) to 3.40 ± 0.74 (intent to use in future). Overall experience was rated as good to very good by 77% of patients. No significant association of age, sex, or type of disability was seen with overall patient experience.

Conclusion: The acceptability rates were good to very good among wheelchair-bound patients and were unaffected by their age, sex, and type of disability.

Aim: Peri-implantitis causes progressive loss of the supporting bony structure around the dental implant. Implantoplasty mechanically removes contaminated threads to achieve smoother implant surface thus reducing the bacterial load enabling fibroblastic growth to stimulate the healing effect. This Systematic review is done to appraise the outcome of implantoplasty on surface quality of Implant (roughness), biocompatibility of implants in peri-implantitis cases.

Settings and design: The Settings of the studies are major online databases like PubMed, Scopus, and Cochrane online library. The design of the current study is systematic review of published qualitative studies.

Materials and method: 37 articles were identified for the present review and systematic electronic literature search was done from August 2022 to January 2023, via PubMed, Scopus, Medline, and The Cochrane Library (Wiley) databases [PRISMA guidelines]. In vitro studies on implantoplasty for peri-implantitis were included for the review. 2 examiners independently selected based on the inclusion criteria and recorded the necessary data.

Statistical analysis used: Risk of bias assessment tool was evaluated with Newcastle Ottawa scale (NOS) and screened based on Selection, Comparability, and Outcome with the following categories: - maximum of 4, 2 and 4 points respectively. The observations were tabulated and analysed.

Results: Among the 8 selected studies, two studies reported no statistical difference between implantoplasty and control, one study proposed carbide burs were better than diamond burs, another study also suggested multilaminar burs were better than diamond and carbide. The Newcastle Ottawa scale (NOS) score for the quality of the included studies ranged from 6 to 8. Two of the studies had score of 6 points, eight had 7 points and one had 8 points.

Conclusion: Implantoplasty has been recommended as an efficacious treatment protocol for peri-implantitis that helps to diminish the inflammation and accompanied by a high success rate.

Aims: The aim of this study was to assess the impact of prosthodontic rehabilitation on glycemic and lipid control in functionally and completely edentulous patients with diabetes.

Setting and design: An in vivo study conducted with the intention of studying the potential link between edentulism and impaired masticatory efficiency with the nutritional status in diabetic patients.

Materials and methods: A total of 20 diabetic patients based on the inclusion criteria were selected. They were rehabilitated using a removable prosthesis, and observations were made across three parameters - glycosylated hemoglobin (HbA1C), serum cholesterol (S col), and serum protein (SP) at three stages - baseline, 3 months, and 6 months posttreatment. This was done to gauge the impact of the prosthetic rehabilitation on their health due to an increased masticatory efficiency potentially causing changes in dietary patterns.

Statistical analysis used: •Inter group comparison (>2 groups) was done using one way ANOVA followed by pair wise comparison using post hoc test. •Intra group comparison was done using repeated measures ANOVA (for>2 observations) followed by post Hoc test. For all the statistical tests, P < 0.05 was considered to be statistically significant, keeping α error at 5% and β error ati20%, thus giving a power to the study as 80%.

Results: Hba1c at the baseline had a mean value of 8.04%, which reduced to 7.87% at the 3-month stage and 7.38% at the 6-month stage. S col at the baseline had a mean of 151.6 mg/dL; at the 3-month follow-up, it was 166.5 mg/dL, and at the 6-month follow-up, it was 173.95 mg/dL. SP had a mean baseline value of 6.38 mg/dL, which progressed to 6.67 mg/dL at the 3-month stage and 6.97 at the 6-month stage.

Conclusion: Within the limitations of this study, it can be concluded that after 6 months of prosthetic rehabilitation in edentulous/functionally edentulous patients: There was a reduction in HbA1c (8.04%-7.38%); however, it was found to be statistically insignificant at that stage There was an increase in S col (151.6 mg/dL-173.95 mg/dL); it was found to be statistically significant There was an increase in SP (6.38 mg/dL-6.97 mg/dL); however, it was found to be statistically insignificant at that stage.

Aim: The study was aimed to evaluate circumferential crestal bone level after one year of implant placement with flapless versus flap surgery using surgical template after immediate loading in the posterior mandibular region using CBCT.

Setting and design: The study was designed as a Randomized controlled trial.

Material and methods: 32 implants were placed in single edentulous spaces in the mandibular posterior region after random allocation into two groups: Flap surgery (Group A) and Flapless surgery (Group B). Virtual implant planning was performed using Blue Sky Bio software, and static CBCT guided 3D printed surgical templates were fabricated for all participants of both the groups. Immediate non-functional temporization was performed. Circumferential crestal bone levels were assessed after surgery and one-year follow-up using CBCT and XELIS software. Vertical bone loss (VBL) and horizontal bone loss (HBL) was assessed on four sides: buccal, lingual, mesial and distal.

Statistical analysis used: Data was analyzed using Statistical Package for Social Sciences IBM Corp. Released 2017, IBM SPSS Statistics for Windows, Version 25.0. (Armonk, NY: IBM Corp.) and Graph Pad Prism 7.0 version. The level of significance was chosen <0.05. Chi square test was performed to assess the difference in the age in the two groups. Mann-Whitney U test was performed to compare the two groups for outcome measure. Graphically, quantile-quantile (Q-Q) plot was made using mean and standard deviation for normality verification of data.

Results: 100% survival rate and patient compliance was observed along the one-year follow-up duration. By using Mann-Whitney U test, statistically significant difference was found in the vertical bone loss among participants of Flap surgery (Group A) and Flapless surgery (Group B) on all the four sides after one year of implant placement. However, significant results were not obtained for the difference in the horizontal bone level.

Conclusion: Within the limitations of this study, vertical bone loss measured circumferentially was more positively correlated with the implants placed with flap surgery compared to flapless surgery after immediate loading in the posterior mandibular region after one year.

Aims: The aim of this study was to analyze the induction effect of a combination of N. sativa and bovine bone graft on the expression and ratio of receptor activator of nuclear factor kappa-B ligand expression (RANKL) and osteoprotegerin (OPG) on alveolar bone socket preservation on days 7 and 14.

Settings and design: The research incorporated a posttest-only control group design. A total of 56 Cavia cobaya were divided into four groups: a control group, an N. sativa group, a bovine bone graft group, and a combined N. sativa and bovine bone graft group.

Materials and methods: The lower incisors of the C. cobaya were extracted with material subsequently being applied to the resulting socket. After the 7^th and 14^th days, the experimental animals were terminated to enable observation of the socket. Following processing, the tissue was subjected to immunohistochemistry staining consisting of RANKL and OPG antibodies before being observed under a light microscope at × 400.

Statistical analysis used: Statistical analysis was carried out using the one-way ANOVA and Tukey's honestly significant difference tests.

Results: A combination of N. sativa and bovine bone graft reduced both RANKL expression and the RANKL/OPG ratio while increasing OPG expression in comparison to the other groups. In all the results obtained, the N. sativa and bovine bone graft combination was significant (P < 0.05) when compared to the control group on both the 7^th and 14^th days.

Conclusion: A combination of N. sativa and bovine bone graft reduced both RANKL expression and the RANKL/OPG ratio while increasing OPG expression.

Aim: The aim is to assess and compare angular, linear, and depth deviation and difference in bone density of dental implants placed using computer aided design/computer aided manufacturing (CAD/CAM) fabricated surgical guides versus implants placed using Bone Pen Kit. Till now, no original research exists in the search engines such as Pubmed, Google Scholar, Science Direct, and Research Gate on this kit.

Settings and design: In vivo- Randomised control trial.

Materials and methods: Twenty clinical cases were selected and split into two distinct groups. Group 1 involved the placement of 10 implants using CAD/CAM fabricated three dimensional guides and Group 2 involved the placement of 10 implants using Bone Pen Kit. Four deviation parameters were evaluated, which included: (a) Angular deviation, (b) Linear deviation at implant platform, (c) Linear deviation at implant apex, and (d) Depth deviation and difference in bone density before and after implant placement was also evaluated.

Statistical analysis used: SPSS software version 23 was utilized for the analysis of the data. The comparison was made using the Whitney test, and Wilcoxon signed rank test.

Results: When comparing angular deviation, the results indicated a statistically significant difference with a P < 0.05. The values observed for angular and linear deviation in Group 2 were significantly greater than those in Group 1. No statistically significant difference in depth and linear deviation was found at the implant platform among the two groups. Bone density before and after implant placement was significantly higher in Group 1.

Conclusions: (1) Angular and linear deviation at the apex in Group 2 exhibited higher values in comparison to Group 1, (2) No difference in depth and linear deviation at the implant platform was found among the two groups, and (3) There was no difference in change in bone density among two groups.

Aim: Orientation of the occlusal plane is an important clinical procedure for complete denture fabrication. An attempt had been made to reconstruct the occlusal plane using a different reference plane. The aim of this study was to find the correlation of the "K" plane to the occlusal plane and to assess the angular deviation between the K-plane to the occlusal plane (KO) with different skeletal forms.

Settings and design: An in vivo observational study was conducted on dentulous subjects having Class I dental occlusion with different skeletal forms undergoing orthodontic treatment.

Materials and methods: The study was conducted on 54 subjects aged 18-30 years. Metallic balls (3 mm in diameter) were attached to the desired landmarks, and a lateral cephalogram was taken for each subject. Cephalometric analysis was done using the Dolphin Imaging software, and the values obtained were recorded and subjected to statistical analysis.

Statistical analysis used: The values obtained were recorded and subjected to statistical analysis using simple descriptive analysis, Shapiro-Wilk test, Mann-Whitney U-test, and Pearson's correlation.

Results: A positive correlation was found between KO with a mean angular deviation of 8.59° ± 3.05°. The angle was found to be steeper in skeletal Class II subjects.

Conclusions: Clinical application of the K-plane to use as a reference plane to orient the posterior occlusal plane can enhance the treatment outcome for a removable prosthesis. The results of this study provide a theoretical foundation for the practical restoration of the occlusal plane in different skeletal forms.

Aim: The intraoral scanners are digital devices used to digitise the oral tissues. The accuracy of the intraoral scanners has been studied under different environmental conditions, but there might be differences that occur in the actual oral environment, which is still in question. The aim of the study was to evaluate the accuracy and efficiency of Parallel Confocal Microscopy and 3D in motion video with triangulation technology-based intraoral scanners under the influence of moisture and mouth opening.

Settings and design: This was an Cross over clinical controlled study.

Materials and methods: The controlled in vivo study included healthy subjects who were in need of CBCT for the purpose of locating the position of unerupted third molars before going abroad for a job. The subjects were exposed to scans in the upper and lower jaws with two intraoral scanners based on 3D motion video technology with triangulation (Medit) and parallel confocal microscopy (Trios) under the influence of two oral conditions, which were moisture (presence and absence of moisture) and mouth opening (30 mm and 50 mm, respectively). A total of 96 scans were obtained and superimposed individually over the reference CBCT scans to find the deviations in the Geomagic Rapidform (version 2020, USA) software. The efficiency of the scanners was calculated by recording the time taken and the number of images obtained after each scan.

Statistical analysis used: The significance was calculated by using the independent and paired sample t test in SPSS software (IBM, version 23).

Results: Based on the surface analysis, the trueness of the intra-oral scanners had statistically significant differences when compared between 3D in motion video technology with Triangulation and Parallel Confocal Microscopy (P < 0.05) whereas no statistical significance was observed in precision. There was a significant difference observed in the efficiency of the intra-oral scanners (P < 0.05).

Conclusion: There is a significant difference in the accuracy and efficiency of the intraoral scanners under the influence of oral conditions, such as different moisture levels and mouth opening conditions. 3D in motion video technology with Triangulation showed better results with the least deviation than Parallel Confocal Microscopy.