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Introduction: Occlusion is a significant issue that affects the masticatory system's health. Temporomandibular Disorders (TMD) have long been linked to occlusal interferences. Identification and management of such disorders using a T-scanguided approach have been gaining popularity; however, the effectiveness is still not established. Aim: To evaluate the effect of T-scan on the reduction of Visual Analogue Scale (VAS) scores of pain and improvement in the symptoms associated with TMD. The benefits of reducing Disocclusion Time (DT) were also evaluated. Materials and Methods: The Medical Literature Analysis and Retrieval System Online (MEDLINE) database via PubMed and Excerpta Medica Database (EMBASE) were searched for studies reporting the use of T-scan in Temporomandibular Joint (TMJ) disorders to check the DT and patient-related outcomes. The search was performed from January 1991 to November 2022. A total of 10 studies were included in the systematic review, which includes clinical studies, observational studies, and interventional studies. Data extraction was performed, and risk of bias assessment was done using the Newcastle-Ottawa scale (NOS) for non randomised studies, and the Cochrane tool was utilised for randomised clinical trials. A qualitative analysis of all the studies was carried out. Results: The T-scan-guided occlusal correction or equilibration procedures led to improvement in subjective symptoms and VAS in TMD patients. Reduction in DT positively affected muscle activity, causing relief of chronic symptoms. Conclusion: As per the findings of the present review, T-scan technology can be successfully used in the precise identification and diagnosis of occlusal discrepancies in patients suffering from myofascial symptoms. [ABSTRACT FROM AUTHOR]

Implant-supported prostheses have considerable biomechanical advantages in partially edentulous patients when compared to other prosthetic options. Given the steady drop in the frequency of patients reporting with complete edentulism, it is not unusual to see situations where teeth and implants can be splinted to provide support for fixed prostheses. A tooth implant prosthesis differs majorly from an implant-supported prosthesis in terms of force dissipation and design. The aim of this systematic review was to compare the survival rates of tooth-implant-supported prostheses with fully implant-supported and fully tooth-supported prostheses. Using the appropriate search terms, PubMed, Google Scholar, and other indexed journals were used to search the English-language literature. According to the review protocols and the PICOS inclusion criteria, the pertinent studies were chosen. The screening of appropriate studies, evaluation of study quality, and data extraction were carried out independently by two reviewers. The pooling of survival data by prostheses failure, implant failure, and marginal bone loss was used in the meta-analysis. The cumulative data of all included studies indicated that tooth-implant-supported prostheses showed a 5-year survival rate of 77%-84% and a 10-year survival rate of 72%. The pooled risk ratio for prostheses failure and implant failure was 0.99 and 1.76, respectively. These results were not statistically significant (P > 0.05). The pooled standard mean difference for marginal bone loss was 0.59, and the results were statistically significant (P < 0.05). A tooth-implant-supported fixed partial denture (FPD) has a similar survival rate when compared to implant-supported FPD or T-FPD. [ABSTRACT FROM AUTHOR]