Purpose The recent coronavirus disease (COVID-19) pandemic mainly affects the respiratory system; however, several oral and maxillofacial post-COVID-19 complications have also been observed. This series reports the growing number of osteonecrosis cases associated with post-COVID-19 patients. Materials and methods This is a retrospective, multi-center case series that reports cases with maxillary osteonecrosis after various periods of SARS-CoV-2 infection in the period between January and August 2021 based on the PROCESS guidelines. Results Twelve cases were reported with post-COVID-19 manifestation of spontaneous osteonecrosis of the maxillary jaw. Five patients were hospitalized during COVID-19 management and all of the twelve cases had at least one systematic Co-morbidity, and undertake corticosteroids prescription based on the COVID-19 disease treatment protocol. The mean onset of osteonecrosis symptoms appearance was 5.5 ± 2.43 weeks calculated from the day of the negative PCR test. The management was successfully done through surgical debridement and pre and post-operative antibiotics. No anti-fungal medications were prescribed as the fungal culture and the histopathological report were negative. Conclusion Post-COVID-related osteonecrosis of the jaw (PC-RONJ) could be now considered as one of the potential post-COVID-19 oral and maxillofacial complications that occurs unprovokedly and mainly in the maxilla.

Objective The purpose of this study was to determine the accuracy of virtual surgical planning for mandibular reconstruction, along with the implementation of a postoperative evaluation methodology. Materials and methods The study is a prospective case series for computer-assisted mandibular reconstruction surgery. Analysis of the degree of agreement between virtual measurements and postoperative actual outcomes was performed. The reliability of the proposed evaluation methodology was assessed and analyzed using the Inter-Class Coefficient (ICC) test. Statistical significance was set at the 5% level. Results Nine consecutive patients were selected. The analysis of all angular and linear parameters reported a highly statistically significant degree of agreement between the preoperative and postoperative measurements (P < 0.001). Furthermore, an extreme degree of reliability was reported when the evaluation methodology was scrutinized (ICC = 0.9). Conclusion The excellent degree of agreement between the virtual plan and the actual outcome reported in this study validated the surgical accuracy of virtually assisted mandibular reconstruction. This study pointed out the reliability and reproducibility of the standardized evaluation protocol in an attempt to obtain a tolerable value for the acceptable postoperative results regarding the accuracy of computer-assisted surgery.

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PurposeTo assess the frequency of dentist‐reported practices to ensure patient safety in the dental office and the impact of training and work environment on this frequency using the framework of the International Patient Safety Goals (IPSGs).MethodsDentists attending major conferences in Egypt and Saudi Arabia were recruited in a cross‐sectional study in 2018. They completed a questionnaire assessing professional background and the frequency of practices for the IPSGs. The relationship between explanatory variables: training (postgraduate degrees and continuing education) and work environment (years in profession, working in public sector and performing surgical procedures) and the outcome variable: frequency of practices for 4 IPSGs was assessed using multivariate general linear model, and univariate general linear model was used to assess their relationship to the overall score of safety practices calculated for all goals.ResultsThe response rate was 81.1%. Practices related to reducing harm in the office environment were significantly less frequent than practices ensuring medication safety, ensuring safe surgery and controlling infection. The overall frequency of safety practices was significantly higher amongst senior than junior dentists. There were significant differences in safety practices frequency based on postgraduate degrees and receiving safety training. Dentists performing surgical procedures reported less frequent safety practices.ConclusionPractices to reduce harm because of the dental office environment were less frequent than other safety practices. Senior dentists, dentists who had postgraduate degrees and who received safety training reported more safety practices whilst those performing surgical procedures reported fewer safety practices.

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