Intrusive luxation of permanent upper central incisor into the nasal cavity: A case report.

This case report outlines a rare complete intrusion of a permanent, maxillary central incisor (tooth 11) into the nasal cavity, with a late diagnosis and treatment. An eight-year-old boy was referred to an oral and maxillofacial surgery service with absence of tooth 11 after an episode of a fall from his own height. Approximately 50 days after the trauma, the patient presented with a complaint of obstruction of the right nostril. The clinical examination and tomographic evaluation showed that the tooth had been intruded into the nasal cavity on the right side. The tooth in question was removed under general anesthesia by direct approach through the right nostril. The patient was followed up for approximately one year without complications. This case demonstrates the importance of a detailed evaluation during the first examination after intrusive luxation, so the correct diagnosis is made and the correct treatment is performed to avoid greater morbidity and complications for the patient.

Ameloblastoma em maxila: sugestão de abordagem cirúrgica / Maxillary ameloblastoma: suggestion of a surgical approach / Ameloblastoma en maxila: propuesta de abordaje quirúrgico

Introdução: O ameloblastoma é um tumor benigno, localmente invasivo, originário do epitélio odontogênico e é a neoplasia odontogênica mais comum. Apresentam crescimento lento e sua ocorrência na maxila é pouco frequente. Objetivo: Discutir os métodos de tratamento para os ameloblastomas em maxila e demonstrar a utilidade da osteotomia Le Fort I na abordagem destas lesões. Material e Método: Estudo descritivo de relato de caso. Resultados: Observou-se a erradicação da lesão com uma abordagem de baixa morbidade e que permitiu bom resultado estético e funcional. Conclusão: A ressecção é o método mais indicado para tratamento dos ameloblastomas sólidos, e a sua realização utilizando a osteotomia Le Fort I podem trazer vantagens tanto no trans quanto no pós-operatório(AU)

Introduction: Ameloblastoma is a benign, locally invasive tumor that originates from the odontogenic epithelium and is the most common odontogenic neoplasm. They present slow growth and its occurrence in the maxilla is infrequent. Objective: To discuss the treatment methods for maxillary ameloblastomas and to demonstrate the usefulness of Le Fort I Osteotomy in the approach to these lesions. Material and Method: Descriptive study of case report. Results: It was observed eradication of the lesion with a low morbidity approach and that allowed a good esthetic and functional result. Conclusion: Resection is the most appropriate method for the treatment of solid ameloblastomas, and its performance using the Le Fort I osteotomy can have advantages both in the trans and in the postoperative period(AU)

Introducción: El ameloblastoma es un tumor benigno, localmente invasivo, originario del epitelio odontogénico y es la neoplasia odontogénica más común. Se presenta un crecimiento lento y su ocurrencia en la mandíbula es poco frecuente. Objetivo: Discutir los métodos de tratamiento para los ameloblastomas en maxila y demostrar la utilidad de la osteotomía Le Fort I en el abordaje de estas lesiones. Material Y Método: Estudio descriptivo de relato de caso. Resultados: Se observó la erradicación de la lesión con un abordaje de baja morbilidad y que permitió buen resultado estético y funcional. Conclusión: La resección es el método más indicado para el tratamiento de los ameloblastomas sólidos, y su realización utilizando la osteotomía Le Fort I pueden traer ventajas tanto en el trans como en el postoperatorio(AU)

Abordagem sistêmica do pênfigo vulgar com acometimento oral / Systemic approach of the vulgar penfigure with oral accomplishment

O termo "pênfigo" remete a um grupo de doenças autoimunes raras, caracterizadas pela formação de bolhas, que afetam o epitélio escamoso estratificado da pele, mucosa ou ambos. Cinco tipos principais de pênfigo foram descritos: vulgar (PV), vegetante, eritematoso, foliáceo e paraneoplásico. O PV é a variante mais comum e frequentemente acomete a mucosa oral. Este artigo relata um caso de Pênfigo Vulgar, com acometimento da mucosa oral e com 10 anos de evolução. Paciente de gênero masculino, 70 anos, procurou o serviço, queixando-se de úlceras na mucosa que causavam ardência e não cicatrizavam. Foi realizada uma biópsia incisional da lesão e, após exame histopatológico, estabelecido o diagnóstico de PV, sendo instituído um regime terapêutico com 60 mg de prednisona por via oral, até a remissão dos sintomas. O PV é uma doença sistêmica de caráter imunológico, de grande importância para a odontologia, tendo em vista que geralmente as manifestações orais antecedem as sistêmicas. Essa doença não tem cura, mas pode ser controlada, como no referido caso. Embora o diagnóstico nesse caso não tenha sido precoce, o prognóstico foi favorável... (AU)

The term "pemphigus" refers to a group of rare autoimmune diseases, characterized by the formation of blisters that affect the squamous epithelium stratified of the skin, oral mucosa or both. Five main types of pemphigus were described: pemphigus vulgaris (PV), vegetative, erythematous, foliaceous and paraneoplastic pemphigus. PV is a more common variant and often affects an oral mucosa. This article reports a case of Pemphigus vulgaris, with involvement of the oral mucosa and 10 years of evolution. A male patient, 70 years old, sought the service complaining of ulcers in the mucosa that caused burning and did not heal. An incisional biopsy of the lesion was performed and after histopathological examination, the diagnosis of PV was established, a therapeutic regimen with oral prednisone 60 mg was instituted util remission of symptoms. PV is a systemic disease of immunological character that has great importance for dentistry, since oral manifestations usually precede the systemic ones. This disease has no cure, can be controlled, as in this case, although the diagnosis in this case was not early, the prognosis was favorable... (AU)

A rare case of regression of brown tumors of tertiary hyperparathyroidism after parathyroidectomy and renal transplant: A 5-year follow-up.

Tertiary hyperparathyroidism (HPT) is a rare condition that affects patients with secondary HPT, which develop hyperplasia of the parathyroid glands, thus causing an increase in parathyroid hormone levels. Bone alterations are the main consequences of this condition including the development of osteolytic lesions called brown tumor. This article reports an unusual case of brown tumors located in the maxilla and mandible in a 19-year-old man with chronic renal failure with hyperplasia of the parathyroid glands. The lesions regressed approximately 5 months after the parathyroidectomy. At this same time, the patient underwent renal transplant. The patient was followed for 5 years, showing improvement in overall clinical status. There was also improvement of the results of laboratory tests and the pattern of trabecular bone. The correct diagnosis of oral lesions was of great relevance for the conservative treatment could have been chosen.

Coronectomia em terceiro molar inferior: relato de casos / Coronectomy in lower third molar: case reports

O princípio da coronectomia ou odontectomia parcial intencional é a remoção da coroa do dente, deixando a raiz in situ. Essa técnica, quando aplicada para a remoção de um terceiro molar ou qualquer dente posterior incluso na mandíbula, tem o intuito de evitar danos ao nervo alveolar inferior. O objetivo do presente estudo foi relatar dois casos clínicos de terceiro molar inferior incluso apresentando suas raízes em íntima relação com o canal mandibular, e, para o tratamento, foi realizada a técnica da odontectomia parcial intencional. Informações sobre o déficit neurosensorial, infecção pós-operatória, tempo do pós-operatório e a taxa de sucesso são enfatizadas no estudo. Conclui-se que a odontectomia parcial intencional é uma técnica previsível e de fácil execução, podendo ser realizada em ambiente ambulatorial. Trata-se de um procedimento alternativo, útil nas extrações de terceiros molares inferiores inclusos que apresentam relação de proximidade com o canal mandibular... (AU)

The principle of coronectomy or intentional partial odontectomy is the removal of the tooth crown, leaving the root in situ. This technique aims to prevent damage to inferior alveolar nerve while applying to removal a third molar or posterior tooth impacted in mandible. In this study, we report two clinical cases with the impacted lower third molar presented roots in close proximity to the mandibular canal and the treatment was performed by intentional partial odontectomy. Neurosensory deficits, postoperative infection, periods off follow up and surgical outcomes were emphasized in this study. We concluded that the intentional partial odontectomy is a foreseeable technique and easy to perform in an outpatient setting. It is an alternative procedure in the extraction of impacted lower third molar that has a close relationship with mandibular canal... (AU)

Symptomatic mucous retention cysts of the maxillary sinus: case report

The retention mucous cyst of the maxillary sinus is a benign lesion that occurs in the interior of the maxillary sinus due ductal obstruction. In the majority of the cases it is asymptomatic, and discovered on routine radiographic examinations. However, in some cases, this cyst can become large and cause symptoms as paresthesia, sensitivity to palpation, chronic headache, nasal blockage, and dizziness. Conservative treatment is conduct in most cases. Symptomatic retention cysts are treated by enucleation or curettage. Objective and case report: This study aimed to report a clinical case of symptomatic mucous retention cyst accidentally discovered in a patient treated by surgically-assisted rapid maxillary expansion. Conclusion: The curettage of the cyst allowed for the regression of symptoms and at 12 months postoperatively the patient is free of symptoms and no signs of recurrence of lesion were noted.

Aspectos técnicos do tratamento do cisto ósseo traumático: relato de caso / Technical aspects of treatment of the traumatic bone cyst: case report

Objetivo: Este trabalho objetiva relatar um caso clínico de um cisto ósseo traumático, enfatizando a técnica cirúrgica. Relato do caso: Paciente gênero feminino, 15 anos de idade, foi encaminhada ao departamento de cirurgia oral e maxilofacial, Universidade Federal de Campina Grande, para avaliação de lesão intra-óssea em região anterior da mandíbula. O exame radiográfico evidenciou área radiolúcida unilocular e assintomática associada ao ápice dos incisivos inferiores esquerdo, que apresentavam vitalidade pulpar. A paciente não referia trauma na infância, apesar de apresentar cicatriz na região submentual. Foi feito o diagnóstico clínico de cisto ósseo traumático, sendo a exploração cirúrgica e curetagem do defeito ósseo o tratamento de escolha. No pós-operatório de um ano, a paciente evolui satisfatoriamente, sem queixas clínicas. Conclusão: Por apresentar comportamento não-agressivo, o cisto ósseo traumático responde adequadamente ao tratamento conservador através da curetagem cirúrgica.

Objective: This study aim report a clinical case of a traumatic bone cyst, emphasizing the surgical technique. Case report: Patient female, 15 years-old, was referred to the oral and maxillofacial surgery department, Federal University of Campina Grande, for evaluation intra-osseous lesion in the anterior mandible. Radiographic examination evidenced a unilocular area asymptomatic and associated to the apex of the under left incisive, who presented pulp vitality. The patient reported no trauma in childhood, although presenting a scar on the submental region. The clinical diagnosis of traumatic bone cyst was performed, surgical exploration and curettage of the bone defect was the treatment of choice. Postoperative period of one year, the patient progressed satisfactorily without clinical complaints. Conclusion: Presentation non-aggressive behavior, the traumatic bone cyst responds adequately to conservative treatment by surgical curettage.

Distúrbios neurossensoriais associados ao nervo alveolar inferior após a osteotomia vertical intraoral dos ramos mandibulares / Neurosensory disturbances of the inferior alveolar nerve after intraoral vertical ramus osteotomy

O objetivo deste estudo foi avaliar os índices de lesão ao nervo alveolar inferior (NAI), após a realização da osteotomia vertical intraoral dos ramos mandibulares (OVIRM) para correção do prognatismo mandibular, comparando-os com os relatos da literatura. A amostra foi composta de dez pacientes, escolhidos aleatoriamente, submetidos à OVIRM, associada ou não à osteotomia da maxila. Não houve casos de danos ao NAI na amostra após um ano de acompanhamento. A OVIRM demonstrou ser uma técnica cirúrgica segura e previsível em relação ao NAI, desde que suas peculiaridades sejam respeitadas.

The aim of this study was to evaluate the impairment in the inferior alveolar nerve (IAN) after performing the intraoral vertical ramus osteotomy (IVRO) for the correction of mandibular prognathism, and compare with the literature reports. The sample was composed of ten patients, randomly chosen, undergoing OVIO, associated or not to the maxillary osteotomy. There were no cases of impairment to the IAN after one year of follow-up. The OVIO proved to be a safe and predictable surgical technique as long as its peculiarities are respected.

Lábio Duplo: relato de caso clínico / Double lip: a case report

O lábio duplo é uma anomalia de origem congênita ou adquirida, caracterizado pela presença de um tecido hiperplásico na mucosa labial, acometendo com maior frequência o lábio superior, sem predileção por grupo étnico ou gênero. O tratamento cirúrgico está indicado nos casos onde o paciente apresenta comprometimento funcional e/ou estético. O objetivo deste trabalho é relatar um caso clínico de lábio duplo em um paciente do gênero masculino de 19 anos de idade e que apresentava como queixa principal a alteração estética no lábio superior, o qual foi tratado com sucesso por meio de excisão cirúrgica.

The double lip is a congenital or acquired origin anomaly, which is characterized by the presence of a hyperplastic tissue in the lip mucosa, which most often affects the upper lip, without preference for ethnic group or gender. Surgical treatment is indicated in cases where the patient has functional and / or aesthetic. The purpose of this work is to report a case of double lip in a 19-year-old male patient, which had as main complaint the aesthetic change in the upper lip, which was successfully treated by surgical excision.

Knowledge that general practitioners of dentistry have about treating tooth avulsion in João Pessoa/PB, Brazil / Conhecimento do cirurgião-dentista acerca do tratamento da avulsão dentária na cidade de João Pessoa/PB, Brasil

Objective: The purpose of this study was to evaluate dentists' knowledge about how to treat traumatic avulsion of teeth. Materials and methods: Seventy general dental practitioners who work in the public health service in João Pessoa, Brazil were interviewed using a questionnaire about their first-aid knowledge in dental traumatology with a particular focus on the following categories: general knowledge about tooth avulsion, replantation of primary and permanent teeth, how to clean an avulsed tooth before replantation, extra-oral time and storage media for an avulsed tooth. Descriptive statistics were used to describe and analyze the data. Results: Storage media for an avulsed tooth (saliva - 44%), type of splinting (semi-rigid - 38%), time of splinting (30 days - 40%) and replantation for avulsed primary teeth (64%). Conclusion: Strategies must be developed to enhance the level of knowledge general dental practitioners have so proper dental first-aid procedures can be achieved and treatment success rates of tooth avulsion can be increased.

Objetivo: O propósito deste estudo foi avaliar o conhecimento dos cirurgiões-dentistas de como tratar a avulsão dentária. Materiais e métodos: Setenta cirurgiões-dentistas que trabalham no serviço de saúde pública em João Pessoa, Brasil foram entrevistados usando-se um questionário sobre o conhecimento em tratar a avulsão dentária com um enfoque particular nas seguintes categorias: conhecimento geral da avulsão dentária, reimplante de dentes decíduos e permanentes, como tratar um dente avulsionado antes do reimplante, tempo extra-oral e meio de armazenamento adequado para um dente avulsionado. Os dados obtidos foram submetidos à estatística descritiva. Resultados: Meio de armazenamento adequado para um dente avulsionado (saliva - 44%), tipo de esplintagem (semi-rígido - 38%), tempo de esplintagem (30 dias - 40%) e reimplante de dentes decíduos avulsionados (64%). Conclusão: Estratégias devem ser desenvolvidas para aumentar o nível de conhecimento dos cirurgiões-dentistas com a finalidade de executar o pronto atendimento em procedimentos de primeiros socorros de forma precisa e para melhorar a taxa de sucesso do tratamento do dente avulsionado.

Intranasal inverted tooth: a rare cause of a persistent rhinosinusitis.

The aim of this study was to report a case of two supernumerary teeth in the nasal cavity in a 22-year-old woman who presented pain, rhinorrhea, and inflammation of the nasal mucosa (rhinosinusitis). The computed tomograph scan showed two radiopaque images that were diagnosed as supernumerary nasal teeth. One was unerupted in the floor and the other inverted, and erupted on the floor on the left side of the nasal cavity. They were removed under general anesthesia, one through the palatine approach, and the other directly through the nasal cavity. The patient was followed for a year and there was no sign of recurrence of rhinosinusitis.

Conservative approach of condylar fracture in a child by the use of rubber elastics: 7-year follow-up.

Condylar fractures in pediatric patients occur frequently, often with minimal pain and discomfort. Thus, these fractures in children are overlooked during emergency care. Condylar fractures can be treated conservatively or by open reduction. As a rule, very good healing results are achieved by conservative treatment. In these cases, jaw function restoration using physiotherapy at an early stage can prevent complications such as asymmetry, interference in the facial growth, and ankylosis. The purpose of this case report was to discuss the peculiarities of treatment of mandibular condyle fractures in pediatric patients and report a case in which the condyles were successfully treated conservatively in a 10-year-old patient. The case was followed up for seven years.

Radiographic evaluation of marginal bone level around internal-hex implants with switched platform: a clinical case report series.

PURPOSE: The purpose of this retrospective investigation was to evaluate the influence on the adjacent cervical bone of moving the implant-abutment microgap inward from the outer edge of an internal-hex implant platform (ie, a platform-switched configuration). MATERIALS AND METHODS: A convenience sample of 26 patients received 42 Frialit-2 (Dentsply-Friadent) implants for single tooth replacement and were divided into two groups. One group followed the original protocol (control group), and the other (study group) received narrower replaceable components. Follow-up time varied between 6 and 60 months (mean, 33.45 months). RESULTS: The control group showed noticeable bone remodeling (mean bone loss = 2.30 mm), and all the remodeled crests were apical to the implant platform. In contrast, all patients in the study (platform-switched) group showed stable levels (mean bone loss = 0.27) of the peri-implant crestal bone, coronal to the implant platform. CONCLUSION: The relocation of the implant-abutment microgap through platform switching with Frialit-2 System implants seems to be an effective means to minimize marginal bone loss in all circumstances employed.

Cisto do ducto nasopalatino em paciente pediátrico: relato de caso e revisão da literatura / Nasopalatine duct cyst in a pediatric patient: a case report and literature review

Os objetivos deste trabalho são relatar um caso de cisto do ducto nasopalatino, revisar suas características e discutir suas formas de tratamento. Os autores relatam um caso de cisto do ducto nasopalatino em um paciente do gênero masculino de dez anos de idade. A lesão foi descoberta em exames radiográficos de rotina durante tratamento ortodôntico e encontrava-se assintomática. O tratamento escolhido foi a enucleação, onde o exame radiográfico de controle pós-operatório mostrou reparo ósseo após 18 meses de acompanhamento. O exame histopatológico revelou o diagnóstico de cisto do ducto nasopalatino.

The aimes of this work are to report a case of nasopalatine duct cyst, review its characteristics and discuss its treatment. The authors report a nasopalatine duct cyst in a ten years old male patient. The lesion was found in a routine radiographic examination of orthodontictreatment and was not symptomatic. The patient underwent surgical enucleation and a radiographic follow up of 18 months that showed evidence of local bone healing. The histopathological examination revealed a nasopalatine duct cyst.

Rânula mergulhante tratada por meio de marsupialização: relato de caso / Plunging ranula treated by marsupialization: a case report

O objetivo deste trabalho é relatar um caso clínico de rânula mergulhante, revisar suas características e discutir suas formas de tratamento. Os autores relatam um caso de rânula mergulhante em paciente do gênero feminino com 14 anos de idade tratada por meio de marsupialização. Os principais objetivos da marsupialização são discutidos, assim como as suas indicações.

Evaluation of mandibular ramus morphology using computed tomography in patients with mandibular prognathism and retrognathia: relevance to the sagittal split ramus osteotomy.

PURPOSE: The purpose of this study was to evaluate and compare the thickness of the mandibular ramus in patients with mandibular prognathism and retrognathia, as well as to assess the distribution of cancellous bone between the external and internal cortical plates above and posterior to the lingula. PATIENTS AND METHODS: The mandibular ramus of 40 patients, of whom 20 had prognathism and 20 had retrognathia, were evaluated by use of high-resolution computed tomography scanning. RESULTS: The mean thickness of the ramus in the prognathism group was 8.17 mm, which differed significantly from the mean value of 8.88 mm in those with retrognathia (P = .014). The mean vertical distance of the point of fusion between the cortical plates above the lingula was 8.95 mm for patients with prognathism and 9.41 mm for those with retrognathia, which was not a significant difference (P = .364). The mean horizontal distance of the point of fusion between the cortical plates posterior to the lingula was 8.32 mm for patients with prognathism and 9.74 mm for those with retrognathia, which was also not a significant difference (P = .066). CONCLUSIONS: The mandibular ramus is thinner in patients with prognathism than in those with retrognathia. The distance of the point of fusion between the cortical plates above and posterior to the lingula is not influenced by the 2 types of mandibular deformity evaluated in this study. Computed tomography has proven to be a valuable tool to evaluate the morphology of the mandibular ramus.

Hiperplasia fibrosa inflamatoria por cámara de succión: tratamiento quirúrgico: relato de caso clínico / Inflamatory fibrous hyperplasia caused by suction chamber surgical treatment: case report

La hiperplasia fibrosa inflamatoria por cámara de succión es una lesión reacional asociada a la cámara de succión, artefacto antiguamente utilizado para aumentar la retención estabilidad de la prótesis total superior. El objetivo de este trabajo es relatar un caso de hiperplasia fibrosa inflamatoria por cámara de succión en una mujer, 76 años, cuya opción ha sido la remoción quirugica

Inflammatory fibrous hyperplasia caused by upper dentures with suction-chamber, an old-fashioned maneuver to achieve retention and stability of upper dentures. The aim of this study is to report a case of inflammatory fibrous hyperplasia caused by upper dentures on a female patient, 76 years old, that was treated by surgery

Cisto ósseo simples em pacientes sob tratamento ortodôntico: relato de dois casos / Simple bone cyst in orthodontic treated patients: report of two cases

INTRODUÇÃO: o cisto ósseo simples (cisto ósseo traumático, cisto ósseo hemorrágico, cisto ósseo solitário) é uma lesão não-neoplásica que representa aproximadamente 1 por cento de todos os cistos maxilares, acometendo as regiões de corpo e sínfise de mandíbula com maior freqüência. Trata-se de uma cavidade intra-óssea delimitada por fina camada de tecido conjuntivo frouxo, sem revestimento epitelial. É uma lesão assintomática comumente identificada em exames radiográficos de rotina, apresentando imagem radiolúcida unilocular bem definida. Sua etiopatogênese não está bem esclarecida, mas acredita-se que o trauma local seja um fator relacionado ao seu desenvolvimento. OBJETIVO: este trabalho relata dois casos de cisto ósseo simples descobertos em exames radiográficos de rotina de pacientes que estavam sob tratamento ortodôntico. RELATO DOS CASOS E DISCUSSÃO: em ambos os casos a hipótese diagnóstica foi confirmada através de biópsia incisional e exame histopatológico. O tratamento escolhido foi a curetagem óssea, radiografias panorâmicas de controle pós-operatório mostraram reparo ósseo no local. Nestes casos, discute-se se há relação do trauma associado ao tratamento ortodôntico com o surgimento do cisto ósseo simples, ou se representa apenas um achado radiográfico, que é mais freqüente nestes pacientes devido ao maior controle radiográfico a que são submetidos.

INTRODUCTION: simple bone cyst (traumatic bone cyst, hemorrhagic bone cyst, solitary bone cyst) is a non-neoplastic lesion which represents about 1 percent of all maxillary cysts, found mainly in mandibular body and symphysis. It is an intraosseous cavity covered by thin, loose fibrous connective tissue, without epithelial lining. Simple bone cysts are asymptomatic and are commonly found in routine radiographic examination as a well defined unilocular radiolucent lesion. Its etiopathogenesis remains obscure, but the local trauma is frequently related to its occurrence. OBJECTIVE: this article reports two cases of simple bone cyst found in routine radiographic examination of orthodontic treated patients. CASE REPORT AND DISCUSSION: in both cases, the clinical diagnosis was confirmed by biopsy and histological examination. The patients underwent surgical exploration and a radiographic follow up showed evidence of local healing. This study discuss if there is a relationship between the orthodontic trauma and the occurrence of simple bone cyst in these patients, or if it represents an incidental finding, since they are most frequently submitted to radiographic examination.

Aspectos radiológicos e epidemiológicos do granuloma central de células gigantes / Radiological and epidemiological aspects of central giant cell granuloma

OBJETIVO: Este estudo teve como objetivo avaliar os principais aspectos radiográficos e epidemiológicos das lesões de células gigantes (granulomas centrais de células gigantes e tumores marrons do hiperparatireoidismo). MATERIAIS E MÉTODOS: A amostra consistiu de 26 lesões de células gigantes diagnosticadas em 22 pacientes divididos em dois grupos, um deles composto por 17 pacientes que não tinham hiperparatireoidismo (grupo A) e o outro formado por cinco pacientes portadores de tal distúrbio (grupo B). RESULTADOS: O sexo feminino (72,7 por cento) foi o mais acometido. As lesões ocorreram mais freqüentemente na segunda década de vida, com média de idade de 27 anos. A mandíbula (61,5 por cento) foi o arco mais envolvido. Radiograficamente, 57,7 por cento das lesões eram multiloculares e 42,3 por cento eram uniloculares com limites definidos. Todas as 26 lesões provocaram expansão óssea, 15,4 por cento produziram reabsorção radicular, 50 por cento causaram deslocamento dentário e 11,5 por cento produziram dor. Na mandíbula, 18,7 por cento das lesões cruzavam a linha média. O grupo A apresentou 66,7 por cento das lesões na mandíbula e o grupo B mostrou igualdade na distribuição das lesões entre os arcos. O grupo A apresentou 66,7 por cento das lesões multiloculares e 33,3 por cento, uniloculares. O grupo B apresentou 62,5 por cento das lesões uniloculares e 37,5 por cento, multiloculares. CONCLUSÃO: As lesões de células gigantes podem manifestar-se, radiograficamente, com um amplo espectro, desde pequenas lesões uniloculares de crescimento lento até extensas lesões multiloculares. Elas apresentam características de benignidade, embora algumas lesões possam demonstrar um comportamento localmente agressivo.

OBJECTIVE: The present study was aimed at evaluating main radiological and epidemiological aspects of giant cell lesions (central giant cell granuloma and brown tumors of hyperparathyroidism). MATERIALS AND METHODS: The sample consisted of 26 giant cell lesions diagnosed in 22 patients divided into two groups, one of them including 17 patients who were not affected by hyperparathyroidism (group A) and another including five patients with such a disorder (group B). RESULTS: Prevalence was higher in female patients (72.7 percent). Most frequently, lesions occurred more in the second decade of life (mean age, 27 years). The mandible arc was most frequently involved (61.5 percent). Radiographically, 57.7 percent of lesions were multilocular and 42.3 percent were unilocular with defined limits. All of the 26 lesions caused expansion of bone, 15.4 percent radicular resorption, 50 percent dental displacement, and 11.5 percent produced pain. In the mandible 18.7 percent of the lesions crossed the midline. Group A showed 66.7 percent of lesions in the mandible and group B showed an even distribution of lesions between arches. In group A 66.7 percent of lesions were multilocular, and 33.3 percent unilocular; in group B 62.5 percent were unilocular, and 37.5 percent multilocular. CONCLUSION: Giant cells lesions may present themselves with a wide spectrum, from small, slow-growing unilocular lesions to extensive multilocular lesions. They present features of benignity, though some lesions may demonstrate a locally aggressive behavior.

Cisto do ducto nasopalatino: revisão da literatura e relato de caso / Nasopalatine duct cyst: review of the literature and case report

Este trabalho tem como objetivo relatar um caso de cisto do ducto nasoplatino e fazer uma breve revisão da literatura sobre o tema.