Introduction: Dentistry has a great challenge in the fight against oral cancer, which is considered a public health problem. Thus, it is important that the population is informed about the risk factors for this disease and how to prevent it. The aim of this study is to present the oral lesions diagnosed in the oral cancer prevention campaign in the city of Fernandópolis/SP in 2017. Methodology: Initially, patients were examined by dental surgeons at basic health units and, in the presence of oral lesions, they were referred to the Center for Dental Specialties (CEO) of the municipality for re-evaluation by a specialist. Results: 720 people were examined during the oral cancer prevention campaign in the city of Fernandópolis / SP in 2017, 58 (8.05%) of whom had oral lesions and were referred for reassessment by the CEO. Only 52 attended the scheduled appointment, that is, 6 (10.3%) dropped out. Of the re-evaluated patients, 3 (5.8%) presented malignant lesions and needed to be referred for specialized treatment. The other reevaluated patients had 47 benign or potentially malignable lesions and 19 variations in normality were diagnosed. Conclusions: Given the results obtained, we could conclude that the oral cancer prevention campaign provided the diagnosis of many oral lesions even though it did not have the necessary dimension, because only a small portion of the population of the municipality was evaluated during the campaign.

Low-level laser therapy (LLLT) is known for its biostimulant properties, which can reduce inflammation and promote tissue regeneration. The present study is randomized, blinded, and placebo-controlled and aims to investigate the role of LLLT in the postoperative recovery of facial fractures. Patients with fractures of the zygomatic bone are selected and divided into two groups: low-level laser and red placebo light. The patients are evaluated for bite force, pain, mouth opening, and paresthesia in the pre-operatory day, on days 1, 2, 7, and 14. The trismus data demonstrated better results in the laser with a significant difference in the periods 7 and 14 days, with p-values of 0.0442 and 0.026, respectively. Regarding the bite force analyzed, no statistically significant differences were observed. In the pain scale comparison, there was a difference between the PLACEBO group and the LASER group for day 1 (p = 0.011), day 2 (p = 0.001), 7 (p = 0.001), and 14 days (p = 0.010). In the evaluation of paresthesia, on days 7 and 14, there were better results in the LASER group with p = 0.012 and p = 0.001. The laser acted as a moderator of the healing process, having a considerable effect on the aspects of trismus, pain, postoperative paresthesia, and bite force.

Introdução: Os odontomas são considerados um tipo de tumor odontogênico hamartoma (anomalia de desenvolvimento), com etiologia ainda incerta, sendo assintomático e descoberto por exames de rotinas, é um dos tumores mais encontrados na cavidade bucal. Objetivo: O objetivo do presente trabalho é apresentar um relato de caso de um odontoma composto erupcionado em mandíbula, analisando o seu diagnóstico e tratamento. Metodologia: Neste artigo faz-se uma revisão da literatura sobre ele, seguido de um caso clínico relatado sobre odontoma composto na região anterior da mandíbula. Relato de Caso: Paciente do sexo masculino, com 22 anos de idade, compareceu ao Centro de Especialidades Odontológicas (CEO) de Fernandópolis/SP encaminhado pelo ortodontista. Ao exame extrabucal nada digno de nota foi verificado. Ao exame intrabucal verificou-se múltiplas massas esbranquiçadas na região lingual dos dentes 33, 34 e 35, sem sintomatologia dolorosa. O exame radiográfico panorâmico trazido pelo paciente mostrou a presença de um conjunto de estruturas semelhantes a dentes, de forma e tamanho variáveis, envoltos por uma zona radiolúcida, sugerindo o diagnóstico de odontoma composto. Foi solicitada tomografia computadorizada para auxiliar no planejamento da intervenção cirúrgica. O material coletado durante a cirurgia foi encaminhado para análise anatomopatológica e o diagnóstico definitivo foi de odontoma composto. Conclusão: Conclui-se que o diagnóstico precoce de Odontoma Composto possibilita maiores chances de intervenções cirúrgicas bem-sucedidas, evitando grandes complicações, e permitindo assim um processo de cicatrização adequado, poupando estruturas nobres e uma completa reabilitação da saúde bucal do paciente.

Displasia cleidocraniana e a odontologia: revisão de literatura / Cleidocranial dysplasia and dentistry: literature review

Kissing Molars is a term used to describe impacted teeth that contact occlusal surfaces in a single follicular space. The occurrence of this phenomenon is extremely rare and of unknown etiology. Therefore, the present study aimed to present a case report of Kissing Molars associated with dentigerous cyst where a surgical procedure was needed under general anesthesia due to the atrophied jaw. On the left side, of the mandible, and fracture after the removal of the impacted teeth happened and a 2.4 mm reconstruction plate was installed. After the extraction of impacted molars, the lesion with a cystic aspect was removed and sent to histopathological analysis which confirmed the diagnostic hypothesis of dentigerous cyst. Thus, it was concluded that despite the rare impaction and unknown etiology, with a little report in the literature, clinically the case behaves like any impacted tooth, and inflammation may occur if it partially erupts. Radiographically, it presents with the occlusal surfaces in contact and a single follicle, usually associated with the dentigerous cyst.

The growing demand for implant-supported rehabilitative prosthetic treatments has reinforced the need to optimize biomechanical performance, particularly regarding force distribution. This study aimed to evaluate the stress distribution generated by different configurations of full-arch implant-supported prostheses using three-dimensional finite element analysis. Two mandibular models were created using SolidWorks 2010 (SolidWorks Corp., Waltham, MA, USA) and Rhinoceros^® 3D 4.0 (NURBS Modeling for Windows, USA). Each model represented a mandible restored with a full-arch fixed prosthesis supported by external hex implants (4.0 × 13.0 mm; Master, Conexão Sistemas de Prótese, São Paulo, Brazil) placed in the interforaminal region, differing only in implant angulation. Model 1 included four implants positioned perpendicular to the alveolar ridge, whereas Model 2 represented the All-on-Four configuration with distal implants tilted at 30°. The prosthesis was modeled in acrylic resin with a NiCr metal framework. The geometries were exported to FEMAP 11.0 for mesh generation. Axial loading of 300 N was applied bilaterally (75 N per tooth), and oblique loading of 150 N was applied unilaterally (75 N per tooth) on the first premolars and first molars. Obtained using NEiNastran^® 9.2 showed that the tilted-implant model exhibited higher stress concentrations under both loading conditions. The All-on-Four configuration generated the highest stress levels, particularly around the distal implants. The null hypothesis of this study was that there would be no difference in stress distribution among full-arch implant-supported prostheses supported by straight implants and those rehabilitated according to the All-on-Four concept with tilted distal implants.