Acesso transconjutival com cantotomia lateral para abordagem do completo orbito-zigomático-maxilar: relato de caso / Transconjutival access with side cantotomy to approach the orbito-zygomatic-maxillary complex: case report

Objetivo: relatar um caso clínico, embasando os aspectos relativos à técnica cirúrgica transconjutival com cantotomia lateral como tratamento para fratura de COZM. Relato de caso: Paciente, gênero masculino, compareceu ao Serviço de Cirurgia e Traumatologia Bucomaxilofacial do Hospital Geral do Estado (HGE), vítima de acidente motociclístico, apresentando distopia ocular, degrau ósseo em rebordo infraorbitário direito, perda de projeção malar direita, abertura bucal limitada com desvio ipsilateral e distopia oclusal com sinais sugestivos de fratura do complexo-orbito-zigomático-maxilar direito, juntamente com fratura complexa da mandíbula. A abordagem cirúrgica para acessar o COZM contou com a técnica de incisão transconjuntival com cantotomia lateral para uma melhor visualização dos cotos ósseos fraturados. Considerações finais: a escolha por esse tipo de acesso resultou em uma abordagem cirúrgica bem-sucedida, proporcionando segurança na visualização do campo cirúrgico para posterior reabilitação do paciente, estabelecendo uma devolutiva estética e funcional, cicatriz imperceptível e consequentemente um melhor prognóstico para o paciente.(AU)

Objective: to report a clinical case, basing the aspects related to the transconjunctival surgical technique with lateral canthotomy as a treatment for COZM fracture. Case report: Patient, male gender, attended the Oral and Maxillofacial Surgery and Traumatology Service of the General Hospital of the State (HGE), victim of a motorcycle accident, presenting ocular dystopia, bone step in the right infraorbital ridge, loss of right malar projection, mouth opening limited with ipsilateral deviation and occlusal dystopia with signs suggestive of a fracture of the right orbito-zygomatico-maxillary complex along with a complex fracture of the mandible. The surgical approach to access the contoured COZM with the transconjunctival incision technique with lateral canthotomy for better visualization of the fractured bone stumps. Final considerations: the choice for this type of access resulted in a successful behavioral approach, providing security in the experience of the respiratory field for subsequent rehabilitation of the patient, establishing a devolutionary and functional aesthetics, imperceptible healing and, consequently, a better prognosis for the patient.(AU)

Central Giant Cell Granuloma in the Mandibular Condyle in a Teenager. A Case Report with Literature Review.

Central giant cell granulomas (CGCG) are not common in the mandibular condyle. In teenagers, the problem is more complex because of difficulties in diagnosis and treatment involving the potential growth of the mandibular process and development of the face. In this short communication a case is presented of an eleven-year-old female under diagnosis of central giant cell granuloma affecting the mandibular condyle treated surgically in two steps using a condylectomy and vertical ramus osteotomy at the first time and later orthognathic surgery, showing the clinical evolution after 13 years of follow-up. In addition, we performed a review of the scientific reports related to CGCG in the mandibular condyle to compare this treatment with others, in terms of follow-up and results. We concluded that the CGCG affecting the mandibular head can be properly treated with low condilectomy, vertical mandibular ramus sliding osteotomy, and discopexy.

Manejo cirúrgico de fratura cominutiva de mandíbula por ferimento de arma de fogo: relato de caso / Surgical management of comminuted jaw fracture by firearms injury: case report

Os ferimentos por arma de fogo (FAF) são um grande problema de saúde pública. Na face, a mandíbula é o local de maior incidência, sendo a região de corpo mandibular a mais atingida e as lesões aos tecidos moles frequentemente a ela associadas. Em alguns casos, tais ferimentos apresentam-se de difícil resolução, sobretudo, em casos de fraturas cominutivas e lesões de tecidos moles com alta complexidade. Isso torna o atendimento desses pacientes um desafio para cirurgiões buco-maxilo-faciais. Desta forma, o objetivo deste artigo é relatar um caso de FAF em terço inferior da face, com comprometimento de tecidos moles e mandíbula, pela equipe de Cirurgia e Traumatologia Bucomaxilofacial do Hospital Geral do Estado - Bahia. Paciente de 28 anos de idade, sexo feminino, vítima de FAF em terço inferior da face, por disparo acidental de espingarda. Ao exame clínico, pode-se observar ferimento perfuro-contuso em região de mandíbula e fratura cominutiva de corpo e ângulo mandibular à direita. A paciente foi submetida à cirurgia para remoção de fragmentos ósseos/corpos estranhos, fixação dos cotos com placa de reconstrução 2.4mm e sutura dos planos, em mesmo tempo cirúrgico, reestabelecendo a função da mandíbula. Portanto, devido à fisiopatologia variável dos FAF na mandíbula, não se indica um único padrão de tratamento para as fraturas cominutivas. Além disso, é indispensável o emprego de protocolos de limpeza cirúrgica imediata e antibioticoterapia nos casos com alto grau de cominuição, bem como, sugere-se realizar o tratamento definitivo o mais breve possível(AU)

Firearm injuries (FIs) are a major public health problem. On the face, the mandible is the place with the highest incidence of this trauma, with the mandibular body region being the most affected and the lesions to the soft tissues frequently associated with it. In some cases, such injuries are difficult to resolve, especially in cases of comminuted fractures and soft tissue injuries with high complexity. This makes the care of these patients a challenge for oral and maxillofacial surgeons. Thus, the objective of this article is to report a case of care for a FAF victim in the lower third of the face, with soft tissue and mandible involvement, by the Maxillofacial Surgery and Traumatology team at the Hospital Geral do Estado - Bahia. 28-year-old female patient, victim of FAF in the lower third of the face, due to acidental shotgun firing. On clinical examination, a perforated-blunt wound can be seen in the mandible region and comminuted fracture of the body and angle of the mandible on the right. The patient underwent surgery to remove bone fragments / foreign bodies, fix the stumps with a 2.4 mm reconstruction plate and suture the planes, at the same surgical time, reestablishing the function of the mandible. Therefore, due to the variable pathophysiology of FAF in the mandible, a single treatment pattern is not indicated for comminuted fractures. In addition, it is essential to use immediate surgical cleaning protocols and antibiotic therapy in cases with a high degree of comminution, as well as, it is suggested to carry out the definitive treatment as soon as possible(AU)

Reabilitação de maxila atrófica com implantes zigomáticos: relato de caso / Rehabilitation of atrophic maxilla with zygomatic implants: case report

Introdução: maxilas severamente atrofiadas representam um desafio às reabilitações implantossuportadas. A reconstrução maxilar com enxertos ósseos para permitir a reabilitação com implantes osseointegrados é um tratamento com boa previsibilidade e alto índice de sucesso. No entanto, a morbidade causada pela necessidade de regiões doadoras e grande quantidade de osso dificulta a aceitação dos pacientes, podendo, inclusive, ser contraindicada dependendo da condição sistêmica. Objetivos: revisar a literatura, discutir as indicações, as complicações, a previsibilidade das reabilitações com implantes zigomáticos, assim como relatar um caso. Relato de caso: os implantes zigomáticos surgiram como uma alternativa para a reabilitação de pacientes maxilectomizados, decorrente da exérese de tumores, perdas ósseas decorrentes de infecções ou traumas, e casos de atrofia óssea severa, como abordado no caso em questão, em que a paciente apresentava edentulismo total em maxila e não gostaria mais de utilizar a prótese convencional, optando pela prótese sobre implante. Considerações finais: a reabilitação com implantes zigomáticos pode apresentar complicações, como o mau posicionamento dos implantes, comprometendo a reabilitação; todavia, apesar das restrições da técnica, a literatura mostra que os implantes zigomáticos, quando bem indicados, representam uma boa alternativa para a reabilitação de maxilas severamente atrofiadas.(AU)

Introduction: severely atrophied jaws pose a challenge to implant-supported rehabilitations. Maxillary reconstruction with bone graft to allow rehabilitation with implants is a treatment with good predictability and high success rate. However, a morbidity is the disease of the donor regions and the greater amount of bone hinders the acceptance of the patients; including, to be contraindicated depending on the systemic condition. Objectives: this article is a review of the literature, such as the indications, complications, predictability of rehabilitations with zygomatic implants, as well as a case report. Case report: the zygomatic implants appeared as an alternative for the rehabilitation of maxilectomized patients, due to the excision of tumors, bone losses due to infections or trauma and cases of severe bone atrophy, as approached in the case in question, in which the patient had total maxillary edentulism and would no longer like to use the conventional prosthesis, opting for the implant prosthesis. Final considerations: rehabilitation with zygomatic implants may present complications, such as poor placement of implants, compromising rehabilitation; however, despite the limitations of the technique, the literature shows that zygomatic implants, when well indicated, represent a good alternative for the rehabilitation of severely atrophied maxilla.(AU)

Alternativas de tratamento para reconstrução de osso frontal: uma série de casos / Treatment alternatives for frontal bone reconstruction: a series of cases

Objetivo: este artigo se propõe a discutir as diferentes modalidades de tratamento de fraturas de osso frontal, demonstradas em uma série de casos clínicos. Relato de casos: três pacientes de gênero variado e com diferentes etiologias de trauma, foram submetidos à cranioplastia, devido a fraturas das corticais externa e interna do osso frontal (além de fixação de outras fraturas de face, em dois dos casos). Nessa série, são apresentados tratamentos com uso de prótese customizada de polimetilmetacrilato, idealizada sobre um protótipo, reconstrução da bossa frontal a partir de telas de titânio e ainda redução óssea com fixação por meio de placas e parafusos. Em todos os casos apresentados, os resultados estéticos e funcionais foram satisfatórios. Considerações finais: baseado no que foi discutido, entendemos que o planejamento deve ser realizado de forma individual e a decisão por qualquer técnica vai depender da gravidade e da extensão da fratura. Para tanto, é necessária uma avaliação criteriosa do caso em questão.(AU)

Objective: This study aims to discuss the different treatment modalities of frontal bone fractures presented in a series of clinical cases. Case report: Three patients of different genders and with different trauma etiologies were subjected to cranioplasty due to fractures of the external and internal cortical of the frontal bone (besides the fixation of other facial fractures, in two of the cases). This series presents treatments using a custom polymethylmethacrylate prosthesis designed on a prototype, the reconstruction of the frontal vault from titanium meshes, and bone reduction with fixation using plates and screws. In all cases presented, the aesthetic and functional results were satisfactory. Final Considerations: The study discussions allow understanding that planning should be performed individually and the decision for any technique will depend on the severity and extent of the fracture. Therefore, a careful assessment of the case in question is required.(AU)

Transmigrant impacted mandibular canine: a case report / Transmigração de canino impactado em mandíbula: relato de caso

Transmigration of canines across mandibular midline is a rare and elusive phenomenon described in the dental literature. Etiology of this phenomenon is obscure, but in some cases supernumerary teeth may be one of the causes. Surgical extraction is indicated due to pathologic lesions, infection, trauma to the adjacent teeth, pain, ectopic eruption and interference with prosthesis they may cause. The aim of this paper is to describe the treatment of a transmigrant impacted mandibular canine near the inferior border and to review the literature about its incidence, prevalence and treatment options. Vestibular access in the anterior mandible was performed followed by osteotomy and odontosection, for tooth removal. Canine impaction is more prevalent in the maxilla than in the mandible, but canine transmigration is more frequent in the mandible. Females seem to be more affected than males, with the left side being more prevalent than the right. Although the literature is controversial about treatment protocol for transmigrant teeth several authors indicate its extraction to prevent lesions that are associated with impacted teeth, specially when orthodontic traction is contraindicated due to the position of those dental units. (AU)

Transmigração de caninos através da linha mediana mandibular é um fenômeno raro descrito na literatura odontológica. A etiologia deste fenômeno é obscura, mas em alguns casos os dentes supranumerários podem ser uma das possíveis causas. A extração cirúrgica é indicada devido a lesões patológicas, infecção, trauma aos dentes adjacentes, dor, erupção ectópica e possível interferência ao uso de próteses que possam causar. O objetivo deste trabalho é descrever o tratamento de um canino mandibular transmigrado perto da borda inferior e analisar a literatura sobre sua incidência, prevalência e opções trapêuticas. Acesso vestibular na mandíbula anterior foi realizado seguido de osteotomia e odontosecção, para remoção do dente. A impactação canina é mais prevalente na maxila do que na mandíbula, mas a transmigração canina é mais freqüente na mandíbula. Mulheres parecem ser mais afetadas do que os homens, com o lado esquerdo sendo mais prevalente do que o direito. Embora a literatura seja controversa quanto ao protocolo de tratamento para dentes transmigrados, vários autores indicam sua extração para prevenir lesões associadas aos dentes impactados, especialmente quando o tracionamento ortodôntica é contra-indicado devido à posição dessas unidades dentárias.(AU)

Anatomical reproducibility through 3D printing in cranio-maxillo-facial defects / Reproducibilidad anatómica a través de impresión 3d en defectos cranio-maxilo-faciales

The planning and 3D reconstruction in craniofacial defects based on anatomical principles of symmetry and passive adaptation has evolved radically the past few years. This article recounts the possibility to develop personalized and extensive craniofacial implants. We present a case of a patient with a 10-year trauma sequel evolution; the patient lost the right frontal bone, supraorbital wall and part of the temporal fossa. From the computerized tomography, and by using Materialise software (3-Matic and Mimics). Subsequently, the printing was performed using the virtual planning with a laser printer in titanium where the piece was elaborated with the determined specifications in the planning; surgery was performed without complications in which the implant was placed via a coronal approach, which did not require any type of adaptation. After a two-year follow-up we observed a correct position, symmetry, absence of infection or any other alteration. It is concluded that the planning and 3D printing are suitable to perform craniofacial reconstructions with a low morbidity, shorter surgical time, and with an adequate facial symmetry and aesthetic return.

La planificación y reconstrucción 3D en defectos craneofaciales se basa en principios anatómicos de simetría y pasividad en la adaptación, evolucionando rápidamente en los últimos años. El presente articulo presenta la posibilidad de rehabilitación de un paciente con trauma importante gracias a un implante craneofacial extenso. Se presenta el caso de un sujeto con evolución de 10 años de una secuela de trauma, donde perdió el hueso frontal, pared supraorbitaria y parte de la fosa temporal. A partir de una tomografía computadorizada, utilizando un software de planificación Materialise (3-Matic and Mimics) se construyó un modelo virtual a través de un implante de pieza única para cubrir íntegramente el defecto; se planificó la posición junto a la cantidad y longitud de tornillos a utilizar. A continuación se realizó la impresión de la pieza mediante una impresora laser de titanio donde la pieza fue construida según las especificaciones de la planificación; la cirugía fue realizada sin complicaciones en el cual el implante fue instalado a través de un acceso coronal sin necesidad de ningún tipo de adaptación. Después de dos años de seguimiento se observa una posición correcta, simétrica y en ausencia de infecciones u otro tipo de alteración. Se concluye que la planificación e impresión 3D es viable de realizar en reconstrucción craneofacial con baja morbilidad, disminución del tiempo quirúrgico, obteniendo una adecuada simetría y estética facial.

Abordagem cirúrgica de osteoma em osso frontal: relato de caso / Surgical management of osteoma in the frontal bone: a case report

Os osteomas são tumores de crescimento ósseo benigno, que podem se apresentar de forma compacta, esponjosa ou mista e acometem comumente os ossos do esqueleto crânio facial. Estas lesões podem ser encontradas nos seios paranasais, na maxila, na mandíbula e no osso frontal. Embora possam ser encontrados em qualquer idade, são mais comuns em adultos jovens e não há predileção por gênero. A etiologia dos osteomas é desconhecida, porém pode estar associada a infecções, traumas, influência hormonal ou genética. São neoplasias de crescimento lento, geralmente assintomáticas, embora possam causar alteração funcional ou deformidade facial. O tratamento para os osteomas pode ser conservador ou cirúrgico, a depender do tamanho da lesão, da sintomatologia e da queixa do paciente. O presente trabalho tem como objetivo relatar um caso clínico de uma paciente de 35 anos, que apresentava osteoma em região de osso frontal com importante queixa estética, que foi satisfatoriamente tratada através de acesso coronal, ostectomia e osteoplastia, além de discutir as características clínicas e as formas de tratamento possíveis para esta lesão... (AU)

Osteomas are benign tumors of bone growth, which can present a compact, spongy or mixed form and commonly involve the bones of the craniofacial skeleton. These lesions can be found in the paranasal sinuses, maxilla, mandible, and the frontal bone. Although they can be found at any age, are more common in young adults and there is no gender predilection. The etiology of osteomas is unknown but may be associated with infections, trauma, or genetic influences hormone. Neoplasms are slow growing, usually asymptomatic, but may cause functional alteration or facial deformity. Treatment for osteomas can be conservative or surgical, depending on the size of the lesion, the symptoms and the patient's complaint. This paper aims to report a clinical case of a patient of 35 years who had osteoma in the region of the frontal bone with significant aesthetic complaint, which was successfully treated by coronal access, ostectomy and osteoplasty, and discuss the clinical features and possible forms of treatment for this injury... (AU)

Pattern and treatment of mandible body fracture.

The aim of this research was to study of treatment of mandibular body fractures (MBF). A retrospective study of 66 patients with mandibular body fracture was realized with subjects was present clinical and image diagnosis;were analyzed socio-demographic variables, etiology, sign and symptoms of fracture, type of treatment and complications. Was executed a statistical and descriptive analysis with Chi-square with statistical significance with p<0.05. The average age was 34 year with 55 male patient; the more common etiology were physical violence and motorcycle accident. The 45.5% present only MBF; patients with multiple fractures show clinical relations between MBF and contra lateral mandibular angle fracture; 54 patients were treated with open reduction without statistical relations with symptoms (p=0.244) or displacement of fracture (p=0.309); the 54.2% of surgical cases present an extraoral approach, using the intraoral approach when the fracture present poor displacement (p=0.0074); the complications more common were suture dehiscence and infections of surgical site. We conclude that the initial choose of treatment was not related to variables analyzed; when exist a minor displacement of MBF can be indicated an intraoral approach for reduction and fixation technique.

Treatment of mandibular glandular odontogenic cyst with immediate reconstruction: case report and 5-year follow-up.

Glandular odontogenic cysts of the jaw are rare with unusual histopathological features, well-defined limits, and a high recurrence rate when treated conservatively. We describe a 37-year-old white man with such a cyst of the right mandible that was resected, and at follow-up 5 years later there were no signs of recurrence.

Treating oral histoplasmosis in an immunocompetent patient.

BACKGROUND: Histoplasmosis is a deep fungus infection that occurs worldwide and is caused by Histoplasma capsulatum. Oral histoplasmosis has been of considerable importance in recent years because it occurs frequently in immunosuppressed patients, more often in those who test positive for the human immunodeficiency virus (HIV). However, the literature contains reports of histoplasmosis in immunocompetent patients, especially in endemic areas. CASE DESCRIPTION: The authors describe a case of an HIV-negative, immunocompetent 60-year-old man with ulcerative and painful oral lesions. The clinician included squamous cell carcinoma and systemic mycosis in the differential diagnosis. After the patient underwent a biopsy and a definitive diagnosis was reached, his initial treatment regimen included itraconazole (200 milligrams per day for one month), nystatin and chlorhexidine mouthrinse (0.12 percent, 10 milliliters, two times a day). The itraconazole treatment was continued for three more months (100 mg daily) until the lesions had resolved completely. CLINICAL IMPLICATIONS: Clinicians need to conduct a careful clinical evaluation and make an accurate diagnosis of ulcerated oral lesions. Knowledge of the oral manifestations of histoplasmosis may enable clinicians to reach a diagnosis earlier and initiate therapy more quickly.

Development of the osteoblastic phenotype in human alveolar bone-derived cells grown on a collagen type I-coated titanium surface.

OBJECTIVE: The aim of this study was to evaluate the development of the osteoblastic phenotype in human alveolar bone-derived cells grown on collagen type I-coated titanium (Ti) surface (Col-Ti) obtained by plasma deposition acrylic acid grafting compared with machined Ti (M-Ti). MATERIAL AND METHODS: Osteoblastic cells were cultured until subconfluence and subcultured on Col-Ti and M-Ti for periods of up to 21 days. RESULTS: Cultures grown on Col-Ti and M-Ti exhibited similar cell morphology. Cell adhesion, total protein content, and alkaline phosphatase (ALP) activity were not affected by Ti surface modification in all evaluated periods. Growth analyses indicated that there were significantly more cells in cultures grown on Col-Ti at day 3. Runt-related transcription factor 2 (Runx2), osteopontin (OPN), and osteoprotegerin (OPG) mRNA expression of cells subcultured on Col-Ti was higher, whereas collagen type I (COL) was lower compared with M-Ti. Ti surface modification neither affected the osteocalcin (OC), ALP and receptor activator of NF-kappaB ligand (RANKL) mRNA expression nor the calcium content extracted from mineralized matrix. CONCLUSIONS: These results demonstrated that Col-Ti favours cell growth during the proliferative phase (day 3) and osteoblastic differentiation, as demonstrated by changes in mRNA expression profile during the matrix mineralization phase (day 14), suggesting that this Ti surface modification may affect the processes of bone healing and remodelling.

Extenso sialolito no ducto da glândula submandibular: relato de caso / Large sialolith of the submandibular gland duct: report of a case

A Sialolitíase é uma alteração comum das glândulas salivares causada pela presença de cálculo no interior do ducto ou glândula, sendo caracterizada por inchaço, dor e ausência de salivação da glândula afetada. A maioria dos sialolitos acomete a glândula submandibular ou o seu ducto, podendo causar infecção aguda ou crônica.Os autores apresentam um caso de extenso sialolito no interior do ducto da glândula submandibular, discutindo ainda alguns aspectos relacionados ao diagnóstico, à etiologia e ao tratamento desta alteração.

Avaliação dos acidentes e complicações associados à exodontia dos 3os molares / Evaluation of the accidents and complications associated with third molar surgery

A exodontia dos terceiros molares é o procedimento mais realizado na especialidade da Cirurgia e Traumatologia Buco-Maxilo-Facial. Neste trabalho foram avaliados os acidentes e complicações ocorridos durante 159 exodontias de terceiros molares realizadas em 83 pacientes. Como resultado, observamos que o trismo foi a principal complicação encontrada 15,66 por cento(13 pacientes), seguida da parestesia do nervo alveolar inferior com trismo 8,43 por cento(7 pacientes). Com relação à posição dentária, os dentes verticais erupcionados apresentaram-se em maior quantidade 27,67 por cento (44 dentes), sendo a técnica III associada à ostectomia e odontossecção utilizada na maioria dos casos 37,73 por cento (60 dentes).