Introduction: Apical surgeries are routinely performed in Endodontic postgraduate courses at institutions of higher education. Although the success rate and intraoperative prognostic factors of these interventions have been determined in previous studies, constant feedback is necessary for the revision and adjustment of the clinical protocols used. Objective: To determine the success rate and intraoperative prognostic factors of apical surgeries performed in an endodontic postgraduate course. Methods: Retrospective observational cross-sectional study based on the evaluation of clinical and radiographic records of patients undergoing apical surgeries. A total of 840 clinical records were reviewed, of which 97 recorded 108 apical surgeries. Fifty-two cases that met the inclusion criteria were finally selected. The intraoperative prognostic factors evaluated were: magnification, type of flap, retropreparation protocol, retro-obturation material and type of suture. Postoperative and control radiographs were evaluated by a previously calibrated observer using the Molven scale. Statistical analysis was performed using Minitab software, contingency tables and t-test. Results: The success rate was 78.84%. A statistically significant decrease was observed in the Molven scale (p ≤ 0.001). It was not possible to establish the relationship of intraoperative prognostic factors with the success rate. Conclusions: The apical surgeries performed showed an acceptable success rate and this could increase with long-term clinical and radiographic follow-ups.
Introduction: Due to edentulousness, masticatory performance and masticatory force decrease, which implies a disorganization and decompensation of the stomatognathic system with forces provoked by mastication, which are distributed in the bone through teeth and mucous membranes and cause bone resorption in edentulous areas. Objective: To compare masticatory performance and maximum functional masticatory force in partially edentulous patients with dentomucosally supported removable partial dentures before and after surgical installation of osseointegrated implants as auxiliary prosthetic abutments. Methods: Ten patients rehabilitated with removable partial dentures were selected. The biomechanical test of masticatory force measurement and the Manly test were performed to evaluate masticatory performance before implant installation and at three- and six-months post-surgery. Results: An average masticatory performance value of 24.2 ± 9.73 % was obtained before implant surgery, 44.1 ± 13.28 % at three months and 45.6 ± 14.33 % at six months after implant surgery (p = 0.001). Before implant surgery, an average masticatory force of 10.6 ± 4.34 kg, 12.5 4.28 kg at three months and 15.1 ± 5.12 kg at six months after implant surgery was obtained (p = 0.008). Conclusions: The use of osseointegrated implants as auxiliary abutments in dentomucosally supported removable prostheses are associated with increased masticatory performance and increased maximum functional masticatory force, associated with relief of direct load on edentulous maxillary ridges.
Introduction: The influence of chlorhexidine on the bond strength of adhesive systems is still very controversial. Objective: To determine the bond strength of two universal adhesives on dentin after application of 2% chlorhexidine at different application times. Methods: Thirty incisors were used and the vestibular surface was abraded to expose the dentin. Subsequently, they were randomly divided into six groups (n = 5). Single Bond Universal (SBU) and All-Bond Universal (ABU) adhesives with/without chlorhexidine were used. Group SBU-0: Single Bond Universal; Group SBU-30: chlorhexidine for 30 seconds + Single Bond Universal; Group SBU-60: chlorhexidine for 60 seconds + Single Bond Universal; Group ABU-0: All-Bond Universal; Group ABU-30: chlorhexidine for 30 seconds + All-Bond Universal and Group ABU-60: chlorhexidine for 60 seconds + All-Bond Universal. Adhesive strength was analyzed by two-factor mixed ANOVA and Tukey's post hoc (p < 0.05). Results: The bond strength for the SBU-60 group increased significantly with respect to the control group (p = 0.032). Similarly, for the ABU-30 and ABU-60 groups, the bond strength increased significantly with respect to the control group (p = 0.001) and (p = 0.000), respectively. Conclusion: Pre-application of 2% chlorhexidine for 60 seconds increases the bond strength of Single Bond Universal and All-Bond Universal adhesive systems.
Introduction: This secondary study focuses on the question: What are the oral manifestations described in patients with COVID-19? Objective: The aim of this review is to characterize oral manifestations reported in research on patients with COVID-19. Methods: A systematic review was conducted focusing on COVID-19 oral manifestations. Research articles involving COVID-19 patients describing at least one oral manifestation were included. The search strategy was executed in databases such as Pubmed, Scopus, and Web of Science. Detailed information on oral manifestations during the disease was extracted. The review used the STROBE tool to assess the risk of bias (RoB) and performed a descriptive data analysis. Results: After analyzing 207 articles and eliminating duplicates, 10 studies were selected, revealing data from 2878 patients. The most common oral manifestations were changes in oral mucosa (21.1%), xerostomia (19.4%), and loss of taste (12.9%). Others, such as ulcers or blisters (5.0%), had lower incidence (<5%). Less frequent manifestations included glossitis (0.9%), enanthema (0.1%), and difficulty chewing (0.2%), all less than 2% of the total studied patients. Conclusions: Findings revealed that changes in oral mucosa, xerostomia, and loss of taste were the most frequent manifestations. Ulcers, dental pain, and less common symptoms like glossitis or enanthema occurred in a minority of cases. These results underscore the importance of recognizing a broad range of oral manifestations in COVID-19 patients to enhance early detection and clinical management of the disease.
Introduction: The introduction of artificial intelligence-driven applications is revolutionizing dentomaxillofacial imaging. Objectives: To describe the current status of artificial intelligence applications in dentomaxillofacial diagnostics; to assess their impact; and to identify future directions for research and implementation. Methods: A narrative review was performed, using systematic searches in databases such as PubMed, Google Scholar, IEEE Xplore, among others; the study focused on articles published from 2010 to the present. Researches applying artificial intelligence technologies in dentomaxillofacial diagnosis were included; their quality and relevance were evaluated using the established tools. Results: Artificial intelligence, especially deep learning, has shown significant improvements in image segmentation, disease detection and treatment planning in dentomaxillofacial imaging. Artificial intelligence techniques have enabled automation of image analysis tasks, improved efficiency and diagnostic accuracy. Conclusions: Artificial intelligence has significant potential to revolutionize dentomaxillofacial imaging, as it offers improvements in diagnostic accuracy, efficiency in image interpretation, and treatment planning. Further research is needed to overcome technical, ethical and privacy challenges and to validate the clinical applicability of these technologies.
