Comparison of different plating systems in bilateral para symphysis fractures: An original research

Aim: The purpose of the present research was to evaluate the comparison of various plating systems used in treatment of bilateral para-symphysis fracture. Methodology: Fractures were generated in 3-dimensional finite element models, and were fixed with a single miniplate, parallel double miniplates, or perpendicular double miniplates. A 300 N perpendicular load was then applied on the left molar region, and a finite element analysis was performed. Vertical gaps between the fractured surfaces of bilateral para-symphyseal areas, maximum stress within the screw/plating system, and maximum stress around screw holes in the bone. Results: Compared to the single miniplate, both the parallel and perpendicular double miniplates demonstrated significantly less stress in the screw/plating system and screw holes in the bone. In addition, the perpendicular double miniplates had significantly smaller vertical gaps between fracture surfaces when compared to the single miniplate. Comparing parallel and perpendicular double miniplate fixations, less stress was found around the screw holes of the perpendicular miniplate models than those of the parallel miniplate models. There were no differences in vertical gaps or maximum stress within the screw/plating systems between the 2 double miniplate fixations.&nbsp

Choice of treatment options for Class II Div II cases in young adults by orthodontists: An original research

Aim: The purpose of the present research was to assess the choice of treatment utilized by orthodontists in class II div.II malocclusion in case of young adults. Methodology: 8 questions were asked to 50 orthodontists during a survey regarding the treatment options in cases of class II div. II.  They were asked about various appliances used as well as relapses in relation to these cases. Descriptive statistical analysis was carried out using standard deviation, mean etc. The result was considered statistically significant when p value was <0.05. Results: Around 64.5% of participants faced problems like crowding of the anterior teeth as the major challenge followed by aberrant molar relationships, overbite depth, retroclination of maxillary incisors, and hypodivergent facial pattern of patients. 22 months is the average time the orthodontists (58%) remove the fixed appliances and follow them with retainers. 71% of participants feel that class II div. II relapse much more often as compared to class II div. I cases. 13.6% of orthodontists relied majorly preferred interdental stripping and tooth contouring. Conclusion: Surgical orthodontics is not preferred by the orthodontists in our study and class II div. II cases shows more relapses

Positively charged polyvinylidene fluoride (PVDF) membrane: A potential alternative for absorbent paper points in endodontics

Aim The purpose of the study was to evaluate the performance of Polyvinylidene Fluoride (PVDF) as an alternative to paper points (PPs) for endodontic treatments. Methodology The paper points and the PVDF membrane were evaluated for endotoxin binding using Limulus Amebocyte Lysate (LAL) assay. New paper points and the PVDF membrane were evaluated for the presence of endotoxins. Results Absorbency and endotoxin removal with the 0.22µm PVDF membrane was significantly greater than any of the paper points tested. There was significantly more endotoxin found in new paper points compared to the PVDF membrane. Conclusion In conclusion, our study showed that the 0.22μm PVDF membrane was significantly more absorbent and removed more endotoxins than PPs

An in vitro study on the impact of the torque after repeated use of the implant handpiece: An original research

Introduction: Extreme repeated use of the dental implant handpiece may cause aging of the handpiece through heat generation of the implant motor and affect its lifespan. We aim to conduct an in-vitro study on the impact of the torque after repeated use of the implant handpiece.  Materials and methods: Two types of implant handpiece systems NSK, and SAESHIN were applied. The output torque was calibrated using a digital torque gauge. The experiment was done under the setting torque value of 35 Ncm (implant placement torque) and 50 Ncm (overloading torque condition) and 30 times per set; a total of 5 sets were performed (N = 150). Results: NSK and SAESHIN implant handpieces depicted significant differences in output torque output at the setting torques of 35 Ncm and 50 Ncm (P <.001). The type of implant handpiece and repeated use influenced the output torque (P <.001). Conclusion: Notable changes were noted due to repeated use, and the implant handpiece should be achieved and repaired during long-term use. Moreover, for successful implant results in dental clinics, the output torque of the implant handpiece system should be checked before implant placement

Comparison of different sinus augmentation techniques for implant placements: An original research

Aim: The purpose of the present research was to evaluate various sinus augmentation techniques for implant placements. Methodology: Four techniques were evaluated: 1-stage bone-added osteotome sinus floor elevation procedure (BAOSFE) with simultaneous implant placement; 2-stage BAOSFE with delayed implant placement; 1-stage lateral window sinus floor elevation with simultaneous implant placement; and 2-stage lateral window sinus floor elevation with delayed implant placement. Patients were followed for 18 to 72 months (mean: 52.5 months) after prosthesis placement. Data were analyzed with cone-beam computed tomography. Results: A total of 96 implants from 71 patients were analyzed; pre-treatment, there were no significant differences between patients. Total implant survival was 98.9%. The mean residual bone height was significantly higher in the 1-stage BAOSFE group than the other groups (P <.01); 1 implant in this group failed at 3 months. There was no significant difference in total bone height gain between groups. However, the bone height gain of 1st sinus lifting with 2-stage BAOSFE was significantly lower than the 2-stage lateral window procedure (P<.01). There was no prosthesis failure. Conclusion: The favorable implant outcomes suggest these 1-stage and 2-stage MSFA procedures should be considered as alternative treatment options for patients with extremely atrophic posterior maxilla

Choice of grafting options post apicectomy procedure by specialist endodontist: An original research

Aim: The purpose of the present study was to evaluate the choice of grafting options post apicectomy procedure by various endodontists. Methodology: In the present descriptive survey, 8 questions were asked from 50 Endodontists, regarding the treatment options in cases of periapical pathologies as well as graft material preference after the apicoectomy procedure was performed. They were asked for usability, economics, long term healing of periapical region related with post apicoectomy graft placement. Results: 49.5% of participants preferred calcium hydroxyapatite as a graft material as compared to bone granules or PRP. It was also noted that radiographic resolution and improved trabecular pattern in peri-radicular area was the most important aspect that endodontists look into while looking at healing of periapical lesion (1.43 ±1.002). Most stable graft according to 61% of participants were autologous transplants- bone granules as well as calcium hydroxyapatite (1.422±1.02). Conclusion: Endodontists preferred calcium hydroxyapatite or bone grafts, which has more stable long-term results

Comparison analysis of poly ether ketone and poly methyl metha acrylate used in prosthodontia for dentures: Original research

Introduction- Several materials have been introduced in dentistry for dentures for over last century. Poly Ether Ether Ketone (PEEK) has adequate flexural strength as a denture base and thereby prolonging its clinical longevity and also overcoming the most common reason for failure of Poly Methyl Metha Acrylate (PMMA) denture base that frequently results in the fracture. Aim- The aim and objective of the present study is to evaluate and compare the flexural strength and hardness of heat-cured PMMA denture base with PEEK. Material and methods- The sample size comprised of 60 samples of PMMA and PEEK which were prepared and divided into two groups i.e.; group I and group II respectively, of 30 each. Both the groups were further divided into subgroups consisting of 15 samples of PMMA and PEEK. The flexural strength was test in group I specimens by universal testing machine (UTM), and group II samples was subjected to hardness test using Vickers microhardness tester. The values were analysed statistically. The unpaired t-test was done for comparison of flexural strength and hardness of PEEK and PMMA.Result-The flexural strength of PEEK was 185 MPa, while that of PMMA was 85 MPa

Evaluation of marginal bone loss in implant supported over-dentures: An original research

Aim: The purpose of the present research was to assess the marginal bone loss due to stresses encountered in implant supported over-dentures. Methodology: Tridimensional models were built from the images of a computerized tomography of a mandible and 3D laser digitalization of implants, abutments, mucosa, and complete denture. The geometric models of implants and abutments were mounted at the canine region to build reference model 1 - absence of bone resorption. To build the test models the mandible geometric solid was modified to simulate 2-mm vertical bone loss surrounding the implants (model 2) and resorption of the distal ridge (model 3). Finite elements models were generated, and a 100 N static load was applied at the first molar region of each model to compare the von Mises stress distributions in selected points. Results: Von Mises stresses increased on the bone surrounding implants and on the prosthetic components in the model with 2-mm vertical bone loss. The combination of 2-mm vertical bone loss and resorption of the distal ridge did not increase the stresses compared with the model with only bone loss surrounding implants.&nbsp

Knowledge about different rehabilitation options in geriatric population: An original research

Aim: The purpose of the present research was to evaluate the need for rehabilitation and various options for consideration amongst the geriatric population. Methodology: One hundred and three geriatric subjects aged between 65 to 90 years were enrolled. The data were collected using a structured questionnaire designed to obtain information regarding home care and geriatric rehabilitation care. Results: Sixty (58.2%) were females and 43 (41.7%) were males. The majority were <80 years of age, 82 (79.6%). Around 52 (50.5%) subjects knew about rehabilitation care and most believed that geriatric rehabilitation care is beneficial. Sixty-four (62.1%) subjects were involved in socialization once a week, 29 (28.2%) once in a month, 6 (5.8%) biannually and 4 (3.9%) marked not at all. Among all, 41% reported being isolated, and 86% were getting enough psychiatric/physical care at home. Conclusion: Although 52 (50.5%) of the study subjects reported knowing geriatric rehabilitation care due to limited education as well as lack of access led to more neglect of the elderly. There is a need to design and conduct rehabilitation programs to control morbidity and improve the quality of the geriatric population

Role of PEEK in RPD: A systematic review

Aim This systematic review aims to analyse and appraise the literature concerning PEEK dental prostheses critically. Methodology The following focused question was constructed ‘Are dental prostheses made of PEEK inferior to those made of other materials in terms of clinical- and patient-reported outcomes?’. The CONSORT (Consolidated Standards of Reporting Trials) tool was used for the quality assessment of the randomised clinical trials. Results A total of 12 studies were included in this review. Two case studies received an overall grade of medium and the overall quality of six studies was graded as ‘low’. All three observational studies and the only randomised controlled trial received scores of ‘medium’. Conclusion PEEK-based dental prostheses may provide a viable and more esthetic alternative to conventional prosthodontic appliances. However, within the limitations of this study is the evidence to ascertain the long-term viability of PEEK-based dental prostheses. Future studies should focus on conducting large-scale, multicenter trials to compare the survival rate of PEEK prostheses to that of conventionally available prosthodontic appliances