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Introduction: Coronectomy is a widely accepted alternative surgical treatment modality in which only the crown of an impacted tooth is removed, leaving the roots and their associated nerve untouched. Uncertainty remains regarding whether intraoperative bone grafting of the coronectomy socket can reduce the incidence of typical postoperative procedure-related complications. Objective: The purpose of this literature review is to compare the outcomes of conventional coronectomy (CC) and grafted coronectomy (GC) in terms of whether adding a bone graft material after coronectomy of impacted mandibular third molars would decrease the incidence of typical complications. Methods: A total of 13 cases identified from electronic databases were included in this review based on their clinical relevance. Results: In general, there were no significant differences between conventional coronectomy and grafted coronectomy regarding the incidence of postoperative morbidities. However, grafted coronectomy with the placement of a bone graft material in the coronectomy socket could significantly decrease the incidence of root migration requiring re-operation of the exposed roots and reduce the preexisting pocket depth distal to the 2nd molar, especially in patients with mesioangular, impacted or horizontal wisdom teeth. Conclusion: According to the existing literature, grafted coronectomy might offer better clinical outcomes and can minimize the typical procedure-related drawbacks of conventional coronectomy while having similar surgical morbidities.

Introduction: Coronectomy is a widely accepted alternative surgical treatment modality in which only the crown of an impacted tooth is removed, leaving the roots and their associated nerve untouched. Uncertainty remains regarding whether intraoperative bone grafting of the coronectomy socket can reduce the incidence of typical postoperative procedure-related complications. Objective: The purpose of this literature review is to compare the outcomes of conventional coronectomy (CC) and grafted coronectomy (GC) in terms of whether adding a bone graft material after coronectomy of impacted mandibular third molars would decrease the incidence of typical complications. Methods: A total of 13 cases identified from electronic databases were included in this review based on their clinical relevance. Results: In general, there were no significant differences between conventional coronectomy and grafted coronectomy regarding the incidence of postoperative morbidities. However, grafted coronectomy with the placement of a bone graft material in the coronectomy socket could significantly decrease the incidence of root migration requiring re-operation of the exposed roots and reduce the preexisting pocket depth distal to the 2nd molar, especially in patients with mesioangular, impacted or horizontal wisdom teeth. Conclusion: According to the existing literature, grafted coronectomy might offer better clinical outcomes and can minimize the typical procedure-related drawbacks of conventional coronectomy while having similar surgical morbidities.

The first diagnostic tool for thyroid disease management is ultrasound. Despite its importance, ultrasound is an extremely subjective procedure that requires a high level of performance skill. Few studies have assessed thyroid ultrasound performance and its effectiveness, particularly the variability between observers in the assessment of ultrasound images. This study evaluated the variability in ultrasound assessments and diagnoses of thyroid nodules between 2 radiologists. In this retrospective study, 75 thyroid nodules in 39 patients were reviewed by 2 experienced radiologists. The nodule composition, margin, shape, calcification, and vasculitis were determined using echogenicity. The study evaluation included these 5 assessments and the final diagnosis. Interobserver variation was determined using Cohen kappa statistics. The interobserver agreements in the interpretation of echogenicity, shape, and margin were fair (κ = 0.21-0.40), whereas there were substantial agreements for vascularity and calcification (κ = 0.62-0.78). The agreements between the observers for individual ultrasound features in this study were the highest for vascularity and the presence/absence of calcification. The interobserver reproducibility for thyroid nodule ultrasound reporting was adequate, but the diagnostic evaluation ability of the observers was inconsistent. The variability in the interpretation of sonographic features could influence the level of suspicion of thyroid malignancy. This study emphasizes the need for consistency in the training of sonographic interpretation of thyroid nodules, particularly for echogenicity, shape, and margin.

(1) Background

(1) Background: Pneumocystis jirovecii pneumonia (PCP) has a substantial impact on the morbidity and mortality of patients, especially those with autoimmune disorders, thus requiring optimal dosing strategies of Trimethoprim–Sulfamethoxazole (TMP-SMX). Therefore, to ensure the safety of TMP-SMX, there is a high demand to review current evidence in PCP patients with a focus on dose optimization strategies; (2) Methods: Various databases were searched from January 2000 to December 2021 for articles in English, focusing on the dose optimization of TMP-SMX. The data were collected in a specific form with predefined inclusion and exclusion criteria. The quality of each article was evaluated using a Newcastle–Ottawa Scale (NOS) for retrospective studies, Joanna Briggs Institute (JBI) critical checklist for case reports, and Cochrane bias tool for randomized clinical trials (RCTs); (3) Results: Thirteen studies met the inclusion criteria for final analysis. Of the 13 selected studies, nine were retrospective cohort studies, two case reports, and two randomized controlled trials (RCT). Most of the studies compared the high-dose with low-dose TMP-SMX therapy for PCP. We have found that a low dose of TMP-SMX provides satisfactory outcomes while reducing the mortality rate and PCP-associated adverse events. This strategy reduces the economic burden of illness and enhances patients’ compliance to daily regimen plan; (4) Conclusions: The large-scale RCTs and cohort studies are required to improve dosing strategies to prevent initial occurrence of PCP or to prevent recurrence of PCP in immune compromised patients.

No treatment currently can be used in order to slow or even stop the progression of Parkinson's disease. Nowadays, researchers are already using stem cells to grow dopamine-producing nerve cells in the lab so that they can study the disease, especially in those cases where there is a known genetic cause for the condition. The development of the advanced cellular therapies and using induced pluripotent stem cells is making it possible to combat the progression of the disease without the resulting motor complications. It has been shown that the transplantation of many cell sources leads to reduce Parkinson’s disease symptoms in animal models.