Aim: The present study was done to evaluate and compare the stability of the implant and the loss of crestal bone in the implants placed using OD drilling and traditional drilling technique. Setting and Design: In vivo -comparative study. Materials and Methods: A total of 20 implants were placed in the anterior maxilla, and the patients were divided into two groups. In Group I, the implants were placed using traditional drilling technique, and in Group II, implant placement was done using OD drilling technique. Primary stability was measured in both the groups at baseline (immediate postoperative), and at an interval of 6 months, while crestal bone levels were measured at baseline, 6, and 8 months. Statistical Analysis Used: The data obtained were subjected to unpaired t-test to make intergroup comparisons, while one-way ANOVA F -test was used to make intragroup comparisons. Results: The primary stability of implant placed using OD drills was found to be slightly higher than implant placed with traditional drilling; however, there was no statistical significance ( P > 0.05). When the data obtained for crestal bone levels were statistically analyzed, no significant difference between the two groups was obtained ( P > 0.05). Conclusion: Within the limitations of this study following conclusions were drawn: there was no statistically significant difference in implant stability between the traditional drilling and OD drilling ( P < 0.05). On comparison of crestal bone levels between OD and traditional drilling, no statistically significant difference was found between the two groups ( P < 0.05).
The treatment planning phase of implant prostheses is dependent on the restorative dentist's knowledge and experience in prosthetic dentistry. Clinically, for implant prostheses, natural occlusal concepts can be applied. However, a natural tooth has a support design i.e. periodontal ligament that reduces the forces to the surrounding crest of bone compared to the same region around an implant. If biomechanical stresses are likely to increase in a clinical condition, occlusal mechanisms to decrease the stresses should be implemented by the dentist and an occlusal scheme should be developed that minimizes risk factors and allows the restoration to function in harmony with the rest of the stomatognathic system. Implant-protected occlusion is proposed as a way to overcome mechanical stresses and strain from the oral musculature and occlusion, by avoiding initial and long-term loss of crestal bone surrounding implant fixtures. Implant-protected occlusion can be accomplished by factors like decreasing the width of the occlusal table, increasing the surface area of implants, reducing the magnification of the force and improving the force direction. The dentist can minimize overload on bone-implant interfaces and implant prostheses, maintain an implant load within the physiological limits of individualized occlusion, and ultimately provide long-term stability of implants and implant prostheses by following above mentioned factors.
Pyrexic patients are usually attended with some scepticism by anaesthesiologists. Main reasons are the absence of comprehensible guidelines pertaining to anaesthesia in such patients and the presence of innumerable aetiologies of pyrexia. This article has tried to fill the existing void in the medical literature regarding anaesthesia in a patient with pyrexia. The article aims to discuss common and relevant causes of pyrexia, their pathophysiology in anaesthetic perspective, and the subsequent anaesthetic management, though a detailed discourse on all the entities causing pyrexia is beyond the scope of this article. This article will also touch upon the thermoregulatory alterations during anaesthesia. The literature search was performed manually using text and reference books, peer-reviewed journals, online and offline and through internet search engines Google, PubMed and Medline databases, using search terms ‘perioperative pyrexia or fever, anaesthesia and thermoregulation’. Articles from 1980 to 2013 in English language were selected.
Background: Infection control has been an important parameter in day-to-day dental practice is infection control. But sometimes while the execution of treatment, during impression making an unforeseen complication may arise due lack of proper disinfection protocol which might lead to transfer of infection between patient to other personnel. The purpose of this study is to evaluate and compare the effect of autoclave and chemical sterilization on the dimensional accuracy and stability of two elastomeric impression materials.Methods: A total of 40 impressions were made with a special impression making device with 2 types of elastomeric impression materials polyvinyl siloxane and polyether. The samples were divided into 2 groups, group 1 was chemically disinfected, whereas group 2 was autoclaved of each material respectively. Measurements were made immediately after the impression is made. Immediately after sterilization and 7 days (168 hours) after sterilization.Results: the dimensional accuracy of polyether was seen to be slightly better than polyvinyl siloxane when measured before chemical and autoclave sterilization.Conclusions: The dimensional stability of polyvinyl siloxane was seen to be better than polyether when measured after autoclave and chemical sterilization but is statistically insignificant at a 0.05 level of significance.
Temporomandibular joint disorders (TMDs) following tooth loss may or may not be prevalent, but the risk of developing these disorders is always there due to changes in occlusion and vertical dimension, leading to changes in the disc-fossa relationship. The purpose of this systematic review was to evaluate the prevalence and severity of temporomandibular joint (TMJ) disorder in partially versus completely edentulous patients. An elaborated literature search was conducted in PubMed/Medline, Scopus, Web of Science, Lilacs, and Google Scholar databases including all articles about varied effects of partial and complete edentulism on the TMJ published from January 1, 2000, to January 1, 2022. After the meticulous screening, only publications which fulfilled the inclusion parameters were ultimately selected for full-text evaluation and tested for bias using the Joana Briggs Institute Appraisal tools for cross-sectional, case–control, and cohort studies. A total of 547 articles from various electronic databases and manual searches were found. After eliminating the duplicates and thorough screening, 13 studies were included for qualitative synthesis. Most of the studies demonstrated at least one or two signs of the presence of TMDs following tooth loss, the intensity/frequency of which increased in proportion to the number of missing teeth.
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.
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