Synchronous cemento-ossifying fibromas: a systematic review.

BACKGROUND: This systematic review aimed to incorporate published data regarding synchronous cemento-ossifying fibromas (COF), with an analysis of their demographic and clinicopathological characteristics. MATERIAL AND METHODS: Case reports and case series of synchronous COF were searched in PubMed, Web of Science, Scopus, EMBASE, and LILACS according to the PRISMA (2020) statement. Also, a manual search was carried out and the grey literature was assessed. A descriptive statistical analysis was performed. RESULTS: Nineteen studies comprising 20 cases of synchronous COF were included. The mean age at diagnosis was 35 years (±13.8), with a predominance of female patients (n=12/60%). In 13 cases (65%) the mandible and the maxilla were affected simultaneously. In two cases (10%) first-degree relatives (parents or siblings) had been previously diagnosed with COF. The diagnostic hypotheses were reported in 8 cases (40%), with florid cemento-osseous dysplasia, ameloblastic fibroodontoma, calcifying cystic odontogenic tumor, osteoma and cementoblastoma being cited in the differential diagnosis. Among the cases with details about management (n=17), eleven were treated by surgical enucleation and/or excision (64.7%). Follow-up was provided for 10 cases (50%), with a mean period of 44.7±62.19 months. Recurrence occurred in three of informed cases. CONCLUSIONS: Synchronous manifestation of COF is rare. Female patients around the 3rd decade of life are more commonly affected. Bilateral involvement of the mandible and maxilla is the most common clinical presentation.

Evaluation of remote teaching in master programs in the Oral Pathology and Oral Medicine during the COVID-19 pandemic. Brazilian multicentric study.

BACKGROUND: With the COVID-19 pandemic, there was a need to adopt online teaching methods in a generalized and sudden way, a situation that led to unprecedented changes in the routine of post-graduate students and research development. This study aimed to analyze the evaluation of remote teaching by graduates of master's degrees and advisors in master's programs in the Oral Pathology and Oral Medicine who needed to adapt to a remote teaching methodology in the pandemic. MATERIAL AND METHODS: This quantitative study evaluated the remote teaching in the perception of master's graduates and advisors from postgraduate programs in Oral Pathology and Oral Medicine. Data were collected through an online Google forms® questionnaire. RESULTS: Participated in the study 14 master graduates and 14 master's advisors. Master graduates evaluated that the professors had a good performance (p=0.001), that the duration of the classes was adequate (p=0.015), that the interaction with professors was satisfactory (p=0.007), that they had good interaction with the advisor (p=0.001), that they were satisfied with the remote guidance process (p=0.038) and that face-to-face practical activities were missed (p=0.002). Master's advisors reported satisfaction with remote teaching, good adaptation (p=0.018) and motivation for remote teaching (p=0.016), they evaluated that students were cooperative in activities (p=0.019) and that face-to-face practical activities were missed (p=0.002). CONCLUSIONS: Despite the difficulties, remote teaching proved to be an effective alternative to face-to-face teaching.

Gingival neoplasms: a multicenter collaborative study of 888 patients in Brazil.

BACKGROUND: To evaluate the prevalence and clinicopathological features of a large series of gingival neoplasms in Brazil. MATERIAL AND METHODS:  All gingival benign and malignant neoplasms were retrieved from the records of six Oral Pathology Services in Brazil, during a 41-year period. Clinical and demographic data, clinical diagnosis, and histopathological data were collected from the patients' clinical charts. For statistical analysis, the chi-square, median test of independent samples and the U Mann-Whitney tests were used, considering a significance of 5%. RESULTS:  From 100,026 oral lesions, 888 (0.9%) were gingival neoplasms. There were 496 (55.9%) males, with a mean age of 54.2 years. Most cases (70.3%) were malignant neoplasms. Nodules (46.2%) and ulcers (38.9%) were the most common clinical appearance for benign and malignant neoplasms, respectively. Squamous cell carcinoma (55.6%) was the most common gingival neoplasm, followed by squamous cell papilloma (19.6%). In 69 (11.1%) malignant neoplasms, the lesions were clinically considered to be inflammatory or of infectious origin. Malignant neoplasms were more common in older men, appeared with larger size, and with a time of complaint shorter than benign neoplasms (p<0.001). CONCLUSIONS:  Benign and malignant tumors may appear as nodules in gingival tissue. In addition, malignant neoplasms, especially squamous cell carcinoma, should be considered in the differential diagnosis of persistent single gingival ulcers.

Osteoma periférico en la mandíbula: Presentación de caso

El osteoma es una lesión benigna caracterizada por la proliferación de tejido óseo, que puede ser central, periférica o extra-ósea, se localiza casi que exclusivamente en la región del cráneo y la cara, siendo bastante rara en huesos largos. Hasta ahora dos variaciones histológicas fueron descritas para la lesión: compacta y medular. El osteoma presenta crecimiento lento y asintomático en la mayoría de los casos, siendo usualmente descubierto cuando son realizados exámenes radiográficos de rutina o cuando la lesión se presenta en un estado de crecimiento avanzado, conllevando a una asimetría facial. Cuando están presentes, los síntomas dependen de la región donde la lesión está localizada. La etiología todavía no está bien clara, los osteomas no presentan cualquier tendencia para transformación maligna y no recidivan después de la remoción quirúrgica. La realización del tratamiento depende de la presencia de síntomas, disfunción y/o malestar. El objetivo de este trabajo fue realizar una revisión de la literatura sobre el tema así como relatar un caso clínico de osteoma periférico en la mandíbula, enfocando su clasificación, aspectos clínicos y tratamiento.

Osteoma is a benign lesion characterized by proliferation of bony tissue that can be central, peripheral, or extra skeletal, and it’s located almost exclusively in the skull and facial region, rarely found in long bones. Two different histological variations have been defined so far, that consists of either compact or cancellous bone. This lesion, which has a slow and asymptomatic growth in the majority of cases, is usually discovered when routine radiological exams are taken or when it presents an advanced growth, producing facial assimetry. Symptoms depend on the region where the lesion is located. With unknown etiology, osteomas are not associated with malignant transformation and don’t recur after surgical treatment. Treatment should be indicated depending on the symptoms, malfunction or discomfort. The goal of this work is to do a literature review and report a case of peripheral osteoma in the mandible, regarding its classification, clinical features and treatment.