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Aim:The aim of this retrospective study was to assess the treatment outcome of arthroscopy and open-joint surgery in the management of internal derangement of the temporomandibular joint (TMJ). Background:Apart from pain being the major complaint in patients with temporomandibular joint disorders (TMDs), a variety of function-related symptoms are reported including joint noises, locking, limited movement, and alterations in occlusion. Surgical management procedures of internal derangement of the TMJ vary widely at present. The criteria for the assessment of successful outcome of the treatment are also variable. Methods and Materials:The retrospective study was carried out at two centers in Paris and Beirut. Sixty-two female patients with an age range of 35.1 years (28 had arthroscopy and 34 had open surgery) were included in the study. The patients were followed-up for 12 months. A standardized questionnaire and visual analogue scale (VAS) was developed and used for the assessment of pain and mandibular range of motion. A chi-square test was used to observe the significance of difference among both groups. Conclusion:Within the limitations of this study, it was concluded arthroscopic surgery appeared to be safe with pain reduction and increased mandibular range of motion for 80% of the patients. Further research is needed on a larger prospective sample to assess the comparison of both techniques in terms of enhanced quality of life among the study population. Abstract © Seer PublishingClinical significance: Arthroscopic surgery appears to be a safe, minimally invasive, and effective method for treating internal derangements of the TMJ.

Background The aim of this Systematic review is to provide more accurate knowledge about the relation between bruxism, Dental implant and the implant-supported prosthesis. Main body. Material and methods A systematic search in Medline (PubMed) and manual search in implant-related journals was performed in February 2021 with time range extending from 2010 to 2021, with no language restriction in order to identify all papers assessing the role of bruxism, as a risk factor for implants and/or implant supported prosthesis. Results 16 papers were included in the review and split into 3 categories assessing implant complications (n = 10), those reporting prosthetic complications (n = 3) and those reporting both (n = 3). From a biological and mechanical complications point of view, bruxism was related with implant and prosthetic failures. Conclusion Bruxism is a risk factor for implants failure, and a risk factor for mechanical complications for implant supported prosthesis as well.