Alexandre Simões Nogueira

A clinicoradiographic and pathological study of pericoronal follicles associated to mandibular third molars.

BackgroundThird molar surgery is considered the most frequently performed procedure in oral surgery. Although there are some indications for the removal of this tooth, such as the possibility of cystic degeneration or a tumor of the adjacent pericoronal follicle, there is no consensus in the literature about their prophylactic removal. ObjectivesThe aims of this study were to investigate the pathological alterations related to mandibular third molar dental follicles and to perform a narrative literature review. MethodsA prospective clinical, radiographic, and histopathologic study was conducted with pericoronal follicles of third molars. After histopathologic evaluation and establishment of diagnosis, 2 groups were defined: G1 (pericoronal tissues with pathological alterations based on histopathologic analysis) and G2 (pericoronal tissues without pathological alterations based on histopathologic analysis). In addition, a systematic review of the literature was performed. ResultsOne hundred thirteen specimens were analyzed. G1 was the most prevalent (P = 0.0004). Lesions were found in patients between 20 and 25 years of age (P < 0.004). The most prevalent histological diagnosis was the paradental cyst (47.7%; P < 0.0001). The narrative literature review showed that the majority of cases were mainly dentigerous cysts (P < 0.05). ConclusionsThe mandibular third molars in young adults showed a direct relationship with age and a statistical propensity for the development of these cystic alterations, notably paradental cysts.

Simultaneous occurrence of a rare lymphoepithelial cyst and squamous cell carcinoma in the oral cavity

1 MSc in Dentistry, Assistant Professor of Dentistry Universidade Federal do Ceara. 2 MSc in Oral Pathology UFRN; PhD student Graduate Program in Dentistry UFRN, Assistant Professor of Dentistry UFC Campus Sobral. 3 Dentistry student UFC Campus Sobral, 4th Year Student of Dentistry UFC Campus Sobral. 4 PhD in Oral Pathology UFRN, Professor of Dentistry UNIFOR. 5 MSc in CTBMF UFPE; PhD student Graduate Program in Dentistry UFC Campus Sobral. Universidade Federal do Ceara Campus Sobral. Send correspondence to: Fabio Wildson Gurgel Costa Coordenacao do Curso de Odontologia da Universidade Federal do Ceara Campus Sobral Av. Comte. Maurocelio Rocha Pontes s/no Derby 62041-040 Sobral CE Brazil. Tel./Fax: (0xx88) 3613-2603 E-mail: fwildson@yahoo.com.br Paper submitted to the BJORL-SGP (Publishing Management System – Brazilian Journal of Otorhinolaryngology) on February 21, 2010; and accepted on April 12, 2010. cod. 6937 cAsE REPORT Braz J Otorhinolaryngol. 2011;77(2):270. BJORL

Dental trauma: knowledge and attitudes of community health workers.

Background The international literature emphasizes the importance of evaluating the knowledge of different groups such as teachers, students, dentists, physicians, parents, and athletes regarding dental injuries. In Brazil, community health workers are professionals who can reach a wide variety of people and who have a marked influence on prevention and health promotion strategies. The objective of this study was to investigate the knowledge and attitudes of community health workers regarding dental trauma. Methods A questionnaire consisting of 19 questions divided into 3 parts was applied: demographic characteristics, knowledge, and attitudes. Data from 206 respondents were analyzed using descriptive statistics and logistic regression models. Results Approximately 28% of the participants reported to have been called to assist individuals with dental trauma. Only 42 subjects had received education on dental injuries, with 34 of them being instructed by a dentist. In cases of tooth avulsion, only 1.9% of the health workers reported that they would search for the tooth and reimplant it. The most frequently indicated storage media for avulsed teeth were nonphysiological media (69.42%). Conclusions The educational level of the community health workers somehow influenced their knowledge (P < 0.001) and attitude (P = 0.016) regarding dental injuries. Educational programs for this group are needed to improve the management of traumatic dental injuries.

Reactive Tonsillar Enlargement Showing Strong 18F-Fdg Uptake During the Follow-Up of Follicular Lymphoma

The 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) has become a standard procedure for the diagnosis, staging, and restaging in lymphoma patients. However, a relative high rate of false-positive results has been reported. We report a case of a 40-year-old man with a previous history of a nodal follicular lymphoma, stage IVA, treated with R-CHOP, which showed strong 18F-FDG uptake in the Waldeyer’s tonsillar ring during his follow-up, being considered highly suspicious of relapsed lymphoma. A surgical removal of the palatine tonsils and adenoids was performed, which showed reactive follicular hyperplasia. Furthermore, bone marrow biopsy revealed absence of neoplasia. The patient is still in follow-up with no signs of recurrent lymphoma. This case illustrates that, despite the high sensitivity for the detection of recurrent lymphoma, 18F-FDG uptake should be interpreted with great caution and confirmatory studies should be performed before any therapy.

Keratocystic odontogenic tumor in the maxillary sinus: a rare occurrence

da Silva Sampieria, Marcelo Bonifacio; Sanches Goncalesa, Eduardo; Tieghi Netoa, Victor; Simoes Nogueira, Alexandre; Turattic, Eveline; Barroso Cavalcantec, Roberta; Mendes Maia Junior, Virgilio Tumor odontogenico ceratocistico em seio maxilar: uma ocorrencia rara Brazilian Journal of Otorhinolaryngology, vol. 80, num. 2, marzo-abril, 2014, pp. 178-179 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial Sao Paulo, Brasil

Clinical Aspects, Imaging Features, and Considerations on Bisphosphonate-Related Osteonecrosis Risk in a Pediatric Patient with Osteogenesis Imperfecta

Osteogenesis imperfecta (OI) is a rare hereditary condition caused by changes in collagen metabolism. It is classified into four types according to clinical, genetic, and radiological criteria. Clinically, bone fragility, short stature, blue sclerae, and locomotion difficulties may be observed in this disease. OI is often associated to severe dental problems, such as dentinogenesis imperfecta (DI) and malocclusions. Radiographically, affected teeth may have crowns with bulbous appearance, accentuated constriction in the cementoenamel junction, narrowed roots, large root canals due to defective dentin formation, and taurodontism (enlarged pulp chambers). There is no definitive cure, but bisphosphonate therapy is reported to improve bone quality; however, there is a potential risk of bisphosphonate-related osteonecrosis of the jaw. In this study we report a case of OI in a male pediatric patient with no family history of OI who was receiving ongoing treatment with intravenous perfusion of bisphosphonate and who required dental surgery. In addition, we discussed the clinical and imaging findings and briefly reviewed the literature.

Hutchinson-Gilford Progeria Syndrome (HGPS): relevant aspects of a rare syndrome diagnosed in a Brazilian child

Hutchinson-Gilford Progeria Syndrome (HGPS) is an extremely rare genetic condition characterized by premature aging and its about one case for every four to eight million people. Children affected usually have premature death due to cardiovascular problems. The gene that causes progeria was recently discovered and it has attracted the interest of the scientific community worldwide not only by the possibility of cure of this genetic pathology but also because of the possibility to retard or to minimize the effects of premature aging caused by the disease in human beings. Among the oral and facial findings is remarkable the delay in tooth eruption, the micrognathia and the disproportion between the skull and face. Dental treatment is directed to preventive aspects and strict supervision of oral conditions in order to minimize the need for more invasive treatments. The authors highli- ght the most relevant aspects related to that syndrome, emphasizing the important aspects to all the oral and maxillofacial surgeons, reporting a case of progeria in a five-year old Brazilian child.

Keratocystic odontogenic tumor in the maxillary sinus: a rare occurrence✩✩Please cite this article as: Sampieri MBS, Gonçales ES, Tieghi-Neto V, Nogueira AS, Turatti E, Cavalcante RB, et al. Keratocystic odontogenic tumor in the maxillary sinus: a rare occurrence. Braz J Otorhinolaryngol. 2014;80:178–9.

da Silva Sampieria, Marcelo Bonifacio; Sanches Goncalesa, Eduardo; Tieghi Netoa, Victor; Simoes Nogueira, Alexandre; Turattic, Eveline; Barroso Cavalcantec, Roberta; Mendes Maia Junior, Virgilio Tumor odontogenico ceratocistico em seio maxilar: uma ocorrencia rara Brazilian Journal of Otorhinolaryngology, vol. 80, num. 2, marzo-abril, 2014, pp. 178-179 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial Sao Paulo, Brasil

Tumor odontogênico ceratocístico em seio maxilar: uma ocorrência rara

da Silva Sampieria, Marcelo Bonifacio; Sanches Goncalesa, Eduardo; Tieghi Netoa, Victor; Simoes Nogueira, Alexandre; Turattic, Eveline; Barroso Cavalcantec, Roberta; Mendes Maia Junior, Virgilio Tumor odontogenico ceratocistico em seio maxilar: uma ocorrencia rara Brazilian Journal of Otorhinolaryngology, vol. 80, num. 2, marzo-abril, 2014, pp. 178-179 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial Sao Paulo, Brasil

Simultaneous occurrence of dentigerous cyst and residual cyst in the maxilla✰✰Please cite this article as: Nogueira AS, Sampieri MBS, Sanches-Gonçales ES, Barreto-Gonçales Andrea Guedes, Soares ECS. Simultaneous occurrence of dentigerous cyst and residual cyst in the maxilla. Braz J Otorhinolaryngol. 2014;80:88–9.

The cysts that originate in the remnants of dental lamina or enamel organ are known as odontogenic cysts. They are of great interest to otolaryngologists due to their proximity to the maxillary sinus and adjacent areas.1 Radicular cysts represent 72.5% of all odontogenic cysts, followed by dentigerous cysts (DC) (22.2%), and residual cysts (RC) (4.26%).2 The options for treatment of cystic lesions involve curettage, enucleation, marginal resection,3 and endoscopic surgery, which is a viable alternative, especially in cases of extension to the maxillary sinus.4 A PubMed and EBSCOhost search did not retrieve any studies analyzing the simultaneous occurrence of DC and RC. This article reports a case involving the association a DC and a RC in the upper jaw of an edentulous patient.