RESUMO JUSTIFICATIVA E OBJETIVOS: Embora as mulheres pareçam ser mais suscetíveis à dor, há poucos estudos comparando os diagnósticos obtidos por meio do Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) entre mulheres e homens. Assim, este estudo teve como objetivo verificar a influência do sexo nas disfunções temporomandibulares (DTM) e suas comorbidades em uma amostra brasileira. MÉTODOS: Os pacientes foram avaliados por meio do RDC/ TMD. Os diagnósticos foram obtidos para o Eixo I (dor miofascial, deslocamento de disco e outras condições articulares) e Eixo II (sintomas de depressão, dor crônica, somatização e limitação da função mandibular). Modelos de regressão logística foram utilizados para verificar se existe diferença na prevalência e nas chances de desenvolver DTM entre mulheres e homens. RESULTADOS: A amostra incluiu 310 pacientes. As mulheres apresentaram mais dor miofascial e foram mais propensas a desenvolvê-la (73,04%; OR: 1,91; IC 95%: 1,08 - 3,39), bem como mais distúrbios articulares (54,78%; OR: 2,07; IC 95%: 1,08 - 3,99), em comparação aos homens. Ademais, as mulheres compuseram a maioria da amostra, procuraram tratamento com maior frequência e apresentaram níveis mais graves de sintomas de depressão, somatização da dor, limitação da função mandibular e dor miofascial. CONCLUSÃO: As mulheres apresentam mais DTM e são mais propensas a desenvolvê-la, bem como apresentam níveis mais graves de sintomas de depressão, somatização da dor, limitação da função mandibular e dor miofascial. OBJETIVOS RDC/TMD RDCTMD RDC TMD (RDC/TMD homens Assim (DTM brasileira MÉTODOS depressão crônica mandibular. . mandibular) RESULTADOS 31 desenvolvêla desenvolvê la 73,04% 7304 73 04 (73,04% OR 1,91 191 1 91 95% 95 108 08 1,0 3,39, 339 3,39 , 3 39 3,39) 54,78% 5478 54 78 (54,78% 2,07 207 2 07 3,99, 399 3,99 99 3,99) Ademais CONCLUSÃO desenvolvêla, la, 73,04 730 7 0 (73,04 1,9 19 9 10 1, 33 3,3 54,78 547 5 (54,78 2,0 20 3,9 73,0 (73,0 3, 54,7 (54,7 2, 73, (73, 54, (54, (73 (54 (7 (5 (

ABSTRACT BACKGROUND AND OBJECTIVES: Although women seem to be more susceptible to pain, there are few studies comparing the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) diagnoses between women and men. Thus, this study aimed to verify the influence of gender on Temporomandibular Disorders (TMD) and their comorbidities in a Brazilian sample. METHODS: Patients were assessed using the RDC/TMD. Diagnoses were obtained for Axis I (myofascial pain, disc displacement, and other joint conditions) and Axis II (depressive symptoms, chronic pain, somatization, and limitation of mandibular function). Logistic regression models were used to verify whether there is a difference in the prevalence and odds of developing TMD between women and men. RESULTS: The sample included 310 patients. Women had more myofascial pain and were more likely to develop it (73.04%; OR: 1.91; IC 95%: 1.08 - 3.39), as well as more joint disorders (54.78%; OR: 2.07; IC 95%: 1.08 - 3.99), in comparison to men. Furthermore, women composed the majority of the sample, more often sought treatment, and had more severe levels of depressive symptoms, somatization of pain, limitation of mandibular function, and myofascial pain. CONCLUSION: Women have more TMD and are more likely to develop it, and also show more severe levels of depressive symptoms, pain somatization, limited mandibular function, and myofascial pain. OBJECTIVES RDC/TMD RDCTMD RDC (RDC/TMD men Thus (TMD METHODS displacement conditions symptoms function. function . function) RESULTS 31 patients 73.04% 7304 73 04 (73.04% OR 1.91 191 1 91 95% 95 108 08 1.0 3.39, 339 3.39 , 3 39 3.39) 54.78% 5478 54 78 (54.78% 2.07 207 2 07 3.99, 399 3.99 99 3.99) Furthermore treatment CONCLUSION 73.04 730 7 0 (73.04 1.9 19 9 10 1. 33 3.3 54.78 547 5 (54.78 2.0 20 3.9 73.0 (73.0 3. 54.7 (54.7 2. 73. (73. 54. (54. (73 (54 (7 (5 (

Aim This study aimed to assess the prevalence of temporomandibular disorders (TMD) and psychosocial comorbidities in undergraduate dental students in a southern Brazilian university, during the COVID-19 pandemic. Also, it aimed to verify the association between psychosocial factors and TMD. Methods Fonseca Anamnestic Index, Depression Anxiety Stress Scale (DASS-21), a socioeconomic questionnaire, and questions about academic performance and social distancing were applied. Poisson regression analysis was used to assess the association of predictive variables with TMD. Results The prevalence of TMD was found to be 82.4%, and more than half of the students had some degree of stress, anxiety, and depression. Students who had symptoms of stress (RR 1.11; 95% CI 1.04-1.19), anxiety (RR 1.19; 95% CI 1.12-1.27) and reported academic performance worsening (RR 1.12; 95% CI 1.07-1.19) had higher TMD scores. Conclusion The findings suggest that TMD was highly prevalent among dental students at a federal university in southern Brazil during the pandemic, being associated with high levels of stress, anxiety, poor academic performance, and greater social distancing. (TMD COVID19 COVID 19 COVID-1 pandemic Also Index DASS21, DASS21 DASS 21 , (DASS-21) questionnaire applied 824 82 4 82.4% depression RR 1.11 111 1 11 95 1.041.19, 104119 1.04 1.19 04 1.04-1.19) 119 1.121.27 112127 1.12 1.27 12 27 1.12-1.27 112 1.071.19 107119 1.07 07 1.07-1.19 scores COVID1 COVID- DASS2 2 (DASS-21 8 82.4 1.1 9 041 1.041.19 10411 104 1.0 0 1.04-1.19 121 1.121.2 11212 127 1.2 1.12-1.2 071 1.071.1 10711 107 1.07-1.1 (DASS-2 82. 1. 1.041.1 1041 10 1.04-1.1 1.121. 1121 1.12-1. 1.071. 1071 1.07-1. (DASS- 1.041. 1.04-1. 1.121 1.12-1 1.071 1.07-1 (DASS 1.041 1.04-1 1.12- 1.07- 1.04-

Abstract The aim of this cross-sectional study was to evaluate the effects of individual-level and tooth-level factors on apical periodontitis (AP) in an urban population in southern Brazil. A random sample of digital panoramic radiographs (n = 545) from a dental school database was evaluated. The diagnosis of AP was determined by using a dichotomous scale (yes/no). AP was assessed according to gender, age, presence and quality of endodontic treatment (ET), presence of an intracanal post, coronal condition, and dental group. Data were analyzed descriptively and through multilevel Poisson regression analysis, considering teeth characteristics (level 1) nested in individuals (level 2). In this sample of 545 participants, the prevalence of AP was 49.5% (n =2 70) and ET was 43.5% (n = 237). Considering 13,595 teeth, AP was identified in 596 (4.4%) and ET in 617 (4.5%). Of the teeth with ET, 153 (24.8%) presented AP. Among individual-level factors, the disease was not significantly associated with gender or age. For tooth-level factors, AP was significantly associated with ET quality: teeth with short fillings (< 3 mm) and teeth with over-fillings had 2.77 (CI: 1.95–3.94, p < 0.001) and 1.08 (CI: 0.39–2.98, p < 0.001) higher prevalence of AP, respectively. There was no association between AP and age, gender, dental group, coronal condition, or the presence of an intracanal post. AP was highly prevalent in this population, and multilevel analysis indicated a significant association with ET quality.

AIM: To analyze all court lawsuits in Brazil in relation to civil liability involving radiographic and tomographic images up to February 2014. METHODS: All Brazilian courts were surveyed for "civil liability," "error," "radiology," "radiography," and "tomography," returning 3923 second-instance lawsuits. Out of them were excluded labor legislation, health insurance coverage of radiological examinations, and criminal liability cases and 359 were selected. Compliance with expert reports, involvement of imaging exams, the defendant professional, the reasons of claims and convictions, and indemnity were evaluated. RESULTS: Of the 359 selected lawsuits, physicians were defendants in 71%, radiologist physicians in 10.6% and dentists in 18.4%. The prevalence of physicians found liable was related to the lack or delay in requesting the imaging exams 49.6%, and among radiologist physicians, misdiagnosis 47.1%. Considering the dentists, imaging exams had mostly an indirect involvement, and failure of the proposed treatment 73.8% was the most prevalent cause of dentists found liable; no radiologist was sued. Regarding indemnity, 50% of lawsuits resulted in compensation up to R$ 20,000 US$ 8,583. CONCLUSIONS: Misdiagnosis was the main cause of claims and radiologists were found liable. The medical field showed the largest absolute number of claims and physicians were found liable, but the highest proportion was directed to dentists.

OBJECTIVES: To assess the accuracy of coronal and sagittal CT sections to detect cavities simulating root resorption. MATERIAL AND METHODS: 60 mandibular incisors were embedded in plaster bases, and cavities with 0.6, 1.2 or 1.8 mm in diameter and 0.3, 0.6 or 0.9 mm in depth (small, medium and large cavities) were drilled on the buccal surfaces with high-speed round burs with diameters of 0.6, 1.2 and 1.8 mm to simulate external inflammatory root resorption. Simulations in the cervical, middle and apical thirds of each tooth root were made randomly. The Dental Scan software was used to obtain 1-mm-thick axial images from direct scanning, which were reconstructed in the coronal and sagittal planes using 3D software (Syngo FastView). Each series was loaded into the software. Fourteen images of each tooth were reconstructed in the coronal plane and 14 in the sagittal plane. A total of 1,652 images were obtained for analysis. Series information, tooth number and the plane reconstructed were stored. The images generated were saved on a CD-ROM together with the visualization software (Syngo FastView). Images were analyzed by a previously calibrated blinded, radiologist. Cochran's Q test was conducted separately for each region analyzed followed by pair-wise comparison by the McNemar test (p=0.05). RESULTS: No statistically significant difference (p>0.05) was observed in the diagnosis of simulated resorption between the apical, middle, and coronal thirds. When the axial plane was assessed separately, diagnoses were statistically different (p<0.05) among the three root thirds. The apical third differed significantly (p<0.05) from the cervical and middle thirds. Diagnostic errors were more often observed in the apical third compared to the cervical and middle thirds. Mid-sized cavities revealed no statistically significant differences (p>0.05) between planes, irrespective of the third in which the resorptions were located. CONCLUSION: When tomographic sections are requested for the diagnosis of buccal or lingual external root resorption, sagittal sections afford the best image characterization of the resorption process.