Preauricular Swelling Mimicking a Tumour: Dissolution of Mandibular Capitulum Following Trauma in a 15-Year Old Child.

AIM: The report is about diagnosis, therapy, and follow-up of a 15-year old boy, who experienced facial swelling and impaired mouth opening after a sport accident. CASE REPORT: Diagnosis of mandibular damage was delayed due to inadequate clinical investigation and radiography after trauma and only became clear after a parotid swelling occurred sometime later resulting from the dissolution of the upper part of the articular process. Follow-up control over a period of three years showed a partial restoration of the articular process but some inhibition of mouth opening combined with slight deviation of the mandible to the affected side remained over the years. CONCLUSION: This report reminds us that parotid swelling can be the result of mandibular trauma without a recent history of physical injury to this region. Therefore, the basic standards of radiologic diagnosis should be maintained and the limited restoring capacity of the condylar process in adolescence should be acknowledged.

Antibiotic Duration and Outcome Complications for Surgical Site Infection Prevention in Traumatic Mandible Fracture.

BACKGROUND: The appropriate duration of antibiotic therapy for surgical site infection (SSI) prevention in traumatic mandibular fracture repair is unknown, and practices vary significantly. The objective of this study was to characterize antibiotic duration and outcomes after surgical repair of traumatic mandibular fracture. METHODS: A single-center, retrospective analysis of all adult patients who underwent surgical fixation of a mandible fracture between January 2014 and December 2016 was performed. Operative service was categorized between otolaryngology (ear, nose, and throat surgery), plastic and reconstructive surgery, and oral and maxillofacial services. Primary outcomes were SSI and operative complications (including osteomyelitis, nonunion, malocclusion, and hardware infections). Differences in antibiotic prescription pattern were analyzed using analysis of variance test and Pearson chi-squared test. RESULTS: A total of 75 patients were included in the study with 33 (44.0%), 26 (34.7%), and 16 (21.3%) managed by plastic and reconstructive surgery, ear, nose, and throat surgery, and oral and maxillofacial services, respectively. Median age was 30.0 y. Median injury severity score was 4.0. There was no significant difference in hospital length of stay (P = 0.44), intensive care unit length of stay (P = 0.53), or postoperative complications (P = 0.15). None of our patients developed an SSI or postantibiotics complications. Although the total inpatient duration of antibiotics was not significantly different among services (P = 0.37), there were significant differences in outpatient duration of antibiotics (P = 0.007) and total duration of antibiotics (P = 0.003). CONCLUSIONS: Duration of antibiotics is not associated with postoperative SSI or antibiotics-related complications. The wide variation in prescribing practices and lack of any clear benefit for prolonged antibiotics provides an opportunity to explore the benefits of a standardized short course of antibiotics. LEVEL OF EVIDENCE: Therapeutic study, III.

Postradiotherapy Prosthetic Management of Mandible Reconstructed With Fibular Graft.

Intraoral defects secondary to resection of mandible leading to mandibular discontinuity are very complicated to treat as the muscles exert forces on the residual portion of the mandible. Primarily this leads to disfigurement of the face. These forces also make mastication difficult due to imbalance. Ultimately it leads to poor quality of life for the patient. Apart from that the clinical outcome and prognosis of prosthetic rehabilitation of such patients is very poor. The composite fibular flap is the preferred donor site for reconstruction of most complex orofacial-mandibular defects. The addition of a skin island allows for absolute tension-free intraoral closure that enhances tongue mobility. After reconstruction with free fibula graft, planning for prosthodontic rehabilitation by various methods can be carried out. Treatment strategy is dependent on the intraoral situation and patient's acceptance. This article reports various treatment considerations for implant retained prosthetic rehabilitation in a patient who had undergone mandibular reconstruction with free fibula flap.

Retrospective analysis of jaw biopsies in young adults. A study of 1599 cases in Southern Brazil

Background: To evaluate the prevalence and the characteristics of jaw lesions diagnosed in young adults aged 20 to 30 years in a southern Brazil reference center, over a period of 25 years. And to analyze the concordance between clinical and histological diagnosis. Material and Methods: In this cross-sectional retrospective study, the biopsies files from this center were retrieved and data regarding sex, age, bone localization, clinical and histological diagnosis were collected. The histological diagnosis were grouped into the categories Cystic lesions of odontogenic origin, Periapical inflammation, Odontogenic tumors, Bone diseases, Health tissue and Nonspecific diagnostic. Absolute and relative frequencies were estimated with descriptive analysis. The agreement between clinical and histological diagnosis was measured through Kappa statistic. Results: A total of 18,181 histopathological analysis were performed during the period of the study, registering 1,599 jaw lesions in young adults. The average age of individuals was 24,59 years (SD 3,1). Nine hundred ninety-one (62%) lesions were found in females and 608 (38%) in males. More than half of pathologies were cystic lesions of odontogenic origin (822/51.4%), followed by periapical inflammation (282/17.6%). Regarding the site of lesions, more than half occurred in posterior mandible (877/54.8%), followed by posterior maxilla (339/21.2%). The most frequent entities were periapical cyst, chronic periapical granuloma, dental follicle and paradental cyst, corresponding to a total of 1,202 (75.2%) evaluated cases. In relation to the analysis of concordance between clinical and histological diagnosis the general Kappa index was 0.5, which is considered moderate. Finally, the findings confirm data from literature about the most frequent jaw pathologies in young adults and serve as aid for preventive measures of some entities. Additionally, they can improve the formulation of differential diagnosis and the patient management (AU)

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Reconstrucción mandibular postraumática / Posttraumatic mandibular reconstruction

Introducción: dentro de los factores que conducen a deformidades persistentes después de traumatismos craneofaciales, se incluye el tratamiento inicial excesivamente retardado. La reconstrucción mandibular ideal proporcionará un arco dentario sólido para articularse con el maxilar y restaurar el habla, deglución, masticación y estética. Objetivo: caracterizar un caso de reconstrucción mandibular en una deformidad postraumática mandibular. Presentación del caso: paciente femenina de 49 años que solo puede alimentarse con comida licuada a partir de un trauma craneofacial recibido seis meses atrás. Se encontró al examen físico facial asimetría con aumento de la dimensión vertical del tercio inferior de la cara con incompetencia bilabial, y al bucal que se trataba de una paciente desdentada total superior y parcial inferior rehabilitada protésicamente en la arcada maxilar, con imposibilidad para el cierre bucal y con la presencia de un escalón visible en el reborde residual a altura del 45 y por distal del 37. Se llegó al diagnóstico de una deformidad postraumática por fractura mandibular bilateral. Se valoró de conjunto con la especialidad de Prótesis, y se decidió tratamiento quirúrgico encaminado a la reconstrucción mandibular mediante abordaje cervical, refractura, reubicación mandibular con fijación de la guía oclusal y colocación de placas mandibulares de carga soportada con tornillos bicorticales. Se realizó el seguimiento por consulta externa después del alta hospitalaria. La paciente refiere estar muy conforme con su aspecto estético y con la mejoría funcional alcanzada. Conclusiones: las secuelas postraumáticas se acompañan frecuentemente de daños en tejidos blandos y duros de la región facial con diferente grado de alteración estética y funcional para el paciente. Lograr restituir estos mediante la reconstrucción facial suele ser un reto profesional que puede ser mejor enfrentado mediante el tratamiento en equipo y transdisciplinario(AU)

Introduction: overly delayed initial treatment is one the factors leading to persistent deformities after craniofacial trauma. Ideal mandibular reconstruction will create a solid dental arch which will articulate with the maxilla and restore speech, swallowing, mastication and esthetics. Objective: present a case of mandibular reconstruction of a posttraumatic mandibular deformity. Case presentation: a 49-year-old female patient can only feed herself liquid food after a craniofacial trauma undergone six months before. Physical examination revealed facial asymmetry with an increase in the vertical dimension of the lower third of the face and bilabial incompetence. Oral examination, on the other hand, revealed that the patient had a totally edentulous upper dental arch and partial prosthetic rehabilitation of the maxillary arch, impossibility of oral closure, and the presence of a visible step on the residual ridge at the 45 and distal 37. Diagnosis was a posttraumatic deformity due to bilateral mandibular fracture. Evaluation was carried out in joint coordination with the prosthesis service, and it was decided to perform surgical mandibular reconstruction by cervical approach, refracture, mandibular relocation with fixation of the occlusal guide, and placement of load bearing mandibular plates with bicortical screws. Outpatient follow-up was conducted after hospital discharge. The patient states that she is very pleased with her esthetic appearance and the functional improvement achieved. Conclusions: posttraumatic sequelae are frequently accompanied by damage to soft and hard tissues of the facial region with varying degrees of esthetic and functional alteration. Restoration by means of facial reconstruction is often a professional challenge which may be best tackled with a team, transdisciplinary therapeutic approach(AU)

Reconstrucción mandibular postraumática / Posttraumatic mandibular reconstruction

Introducción: dentro de los factores que conducen a deformidades persistentes después de traumatismos craneofaciales, se incluye el tratamiento inicial excesivamente retardado. La reconstrucción mandibular ideal proporcionará un arco dentario sólido para articularse con el maxilar y restaurar el habla, deglución, masticación y estética. Objetivo: caracterizar un caso de reconstrucción mandibular en una deformidad postraumática mandibular. Presentación del caso: paciente femenina de 49 años que solo puede alimentarse con comida licuada a partir de un trauma craneofacial recibido seis meses atrás. Se encontró al examen físico facial asimetría con aumento de la dimensión vertical del tercio inferior de la cara con incompetencia bilabial, y al bucal que se trataba de una paciente desdentada total superior y parcial inferior rehabilitada protésicamente en la arcada maxilar, con imposibilidad para el cierre bucal y con la presencia de un escalón visible en el reborde residual a altura del 45 y por distal del 37. Se llegó al diagnóstico de una deformidad postraumática por fractura mandibular bilateral. Se valoró de conjunto con la especialidad de Prótesis, y se decidió tratamiento quirúrgico encaminado a la reconstrucción mandibular mediante abordaje cervical, refractura, reubicación mandibular con fijación de la guía oclusal y colocación de placas mandibulares de carga soportada con tornillos bicorticales. Se realizó el seguimiento por consulta externa después del alta hospitalaria. La paciente refiere estar muy conforme con su aspecto estético y con la mejoría funcional alcanzada. Conclusiones: las secuelas postraumáticas se acompañan frecuentemente de daños en tejidos blandos y duros de la región facial con diferente grado de alteración estética y funcional para el paciente. Lograr restituir estos mediante la reconstrucción facial suele ser un reto profesional que puede ser mejor enfrentado mediante el tratamiento en equipo y transdisciplinario(AU)

Introduction: overly delayed initial treatment is one the factors leading to persistent deformities after craniofacial trauma. Ideal mandibular reconstruction will create a solid dental arch which will articulate with the maxilla and restore speech, swallowing, mastication and esthetics. Objective: present a case of mandibular reconstruction of a posttraumatic mandibular deformity. Case presentation: a 49-year-old female patient can only feed herself liquid food after a craniofacial trauma undergone six months before. Physical examination revealed facial asymmetry with an increase in the vertical dimension of the lower third of the face and bilabial incompetence. Oral examination, on the other hand, revealed that the patient had a totally edentulous upper dental arch and partial prosthetic rehabilitation of the maxillary arch, impossibility of oral closure, and the presence of a visible step on the residual ridge at the 45 and distal 37. Diagnosis was a posttraumatic deformity due to bilateral mandibular fracture. Evaluation was carried out in joint coordination with the prosthesis service, and it was decided to perform surgical mandibular reconstruction by cervical approach, refracture, mandibular relocation with fixation of the occlusal guide, and placement of load bearing mandibular plates with bicortical screws. Outpatient follow-up was conducted after hospital discharge. The patient states that she is very pleased with her esthetic appearance and the functional improvement achieved. Conclusions: posttraumatic sequelae are frequently accompanied by damage to soft and hard tissues of the facial region with varying degrees of esthetic and functional alteration. Restoration by means of facial reconstruction is often a professional challenge which may be best tackled with a team, transdisciplinary therapeutic approach(AU)

The Strategy of Delayed Reconstruction of the Mandible in War Injuries.

The most common causes of mandibular defects are ablative surgery of benign or malignant tumors, severe trauma, inflammatory diseases, and osteoradionecrosis. War injuries are another cause for mandibular defect. Reconstruction of the mandible is considered a challenge to the maxillofacial surgeon due to the accompanying functional and cosmetic importance. The object of this article was to show the role of nonvascularized bone graft in the reconstruction of segmental defect of the mandible resulted from projectiles and its snags. Seventeen patients underwent reconstruction of defect in the body of the mandible using non-vascularized iliac bone graft,in sixteen patients the grafts were fixed by reconstruction plate and in one by stainless-steel wire. In the emergency phase in which life-saving measures were done, in the immediate phase, treatments of associated facial and systemic injuries were carried out. The delayed phase includes the reconstruction of the residual defects and rehabilitation. A total of 17 male patients with a mean age of 34.5 years underwent reconstructive surgery, the time lapse between the injury and the delayed phase of treatment ranged from 20 days to 3 months. The size of the defects ranged from 4 to 7 cm. Treatment was considered successful in 15 patients (88.2%) in whom the grafts were incorporated to mandible with improvement of facial contour and symmetry and satisfactory occlusion of the remaining teeth. Nonvascularized bone graft is considered a feasible option for the reconstruction of a relatively small mandibular defect, especially in ascetic conditions for its role in improving facial appearance and to less extent functional benefit and more advanced method for the reconstruction needed to be introduced especially in war injuries.

Gigantic reactive lesion of mandibular gingival tissue / Lesión gigante reactiva del tejido gengival mandibula

Irritation fibroma are the most common form of reactive lesions found within the oralcavity. These lesions normally attain a small size and show a slow growth rate. This paper reports a case ofgigantic intraoral irritational fibroma with a history of rapid growth. Complete excision was performed andthe specimen was sent for immunohistochemistry (IHC) staining. It was found positive for vimentin, hencereported as irritation fibroma.

Los fibromas irritativos son las forma más común de lesiones reactivas encontradas en la cavidad oral. Estas lesiones normalmente son de pequeño tamaño y muestran una tasa de crecimiento lenta. Este artículo reporta el caso de un fibroma irritativo gigante intraoral con historia de crecimiento rápido. Se realizó la extirpación completa y fue enviado para análisis inmunohistoquímico. Arrojó positivo para Vimentina, por lo tanto, se reportó como fibroma irritativo.

Superolateral dislocation of an intact mandibular condyle into the temporal fossa: case report and literature review.

Temporomandibular joint dislocation refers to the dislodgement of mandibular condyle from the glenoid fossa. Anterior and anteromedial dislocations of the mandibular condyle are frequently reported in the literature, but superolateral dislocation is a rare presentation. This report outlines a case of superolateral dislocation of an intact mandibular condyle that occurred in conjunction with an ipsilateral mandibular parasymphysis fracture. A review of the clinical features of superolateral dislocation of the mandibular condyle and the possible techniques of its reduction ranging from the most conservative means to extensive surgical interventions is presented.

Defeito ósseo de Stafne: relato de dois casos e considerações sobre o diagnóstico / Stafne bone defect: a report of two cases and diagnostic considerations

Defeitos ósseos de Stafne são cavidades ósseas assintomáticas localizadas em mandíbula, frequentemente causadas pela inclusão de tecidos moles. A variante comum desta entidade acomete a região de terceiros molares, abaixo do canal mandibular, sendo geralmente diagnosticada de forma incidental durante exames radiográficos de rotina. A variante em região anterior é incomum e localiza-se nas proximidades dos pré-molares mandibulares. Acredita-se que as glândulas salivares sublinguais estejam implicadas no desenvolvimento desta variante. O objetivo deste relato foi descrever um caso de defeito ósseo de Stafne na região anterior de mandíbula e um caso em mandíbula posterior, com ênfase nos achados clínicos e radiográficos. Cirurgiões dentistas deveriam ter conhecimento desta entidade para evitar biópsias desnecessárias. Na maioria dos casos, acompanhamento clínico-radiográfico constitui a conduta recomendada (AU)

Stafne bone defects are asymptomatic lingual bone depressions of the lower jaw, frequently caused by soft tissue inclusion. The common variant of this entity affects the third molar region, below mandibular canal, and is mostly diagnosed incidentally during routine radiographic examination. The uncommon anterior variant is relatively rare and located in the premolar region of the mandible. Sublingual salivary glands are thought to be responsible for the development of this variant. The aim of this report was to describe a case of Stafne bone defect in the anterior region of mandible and a case in posterior mandible, with emphasis on clinical and radiographic findings. Dental clinicians should be aware of this entity, aiming to avoid unnecessary biopsies. In most cases, clinical and radiographic follow-up is the recommended conduct (AU)

Useful Method for Intraoperative Monitoring of Facial Nerve in a Scarred Bed.

Facial nerve is the main cranial nerve for the innervation of facial expression muscles. Main trunk of facial nerve passes approximately 1 to 2 cm deep to tragal pointer. In some patients, where a patient has multiple operations, fibrosis due to previous operations may change the natural anatomy and direction of the branches of facial nerve. A 22-year-old male patient had 2 operations for mandibular reconstruction after gunshot wound. During the second operation, there was a possible injury to the marginal mandibular nerve and a nerve stimulator was used intraoperatively to monitor the nerve at the tragal pointer because the excitability of the distal segments remains intact for 24 to 48 hours after nerve injuries. Thus, using a nerve stimulator at the operational site may lead to false-positive muscle movements in case of injuries. Using the nerve stimulator to stimulate the main trunk at the tragal point may help to distinguish the presence of possible injuries. A reliable method for intraoperative facial nerve monitoring in a scarred operational site was introduced in this letter.

Simultaneous Computer-Aided Design/Computer-Aided Manufacture Bimaxillary Orthognathic Surgery and Mandibular Reconstruction Using Selective-Laser Sintered Titanium Implant.

This patient report describes simultaneous bimaxillary orthognathic surgery and mandibular reconstruction by means of three-dimensional (3D) planning, 3D printed biocompatible surgical wafers, and 3D selective-laser sintered titanium implant. A 26-year-old male patient presented with a left mandibular defect secondary to trauma. The whole body of the mandible on the left hand side was deficient with a narrow connection with the remaining left condyle. He had undergone orthodontic treatment for 18 months and was ready to undergo bimaxillary orthognathic surgery. Advanced cranio-maxillofacial software was used in processing his cone beam computer tomography scan data, and e-casts of his upper and lower dental arches. Bimaxillary surgery was planned with Le Fort 1 maxillary impaction and mandibular advancement to achieve a class 1 incisor relationship. Intermediate and final surgical wafers were designed following the planned movements and printed using biocompatible resin. The deficient left side of the mandible was reconstructed by means of mirror imaging the contra-lateral right side into the deficient left side with the aim of restoring normal facial symmetry. Biomedical software was then used in designing a reconstruction plate that connected the condylar head and the mandible following the planned bimaxillary surgery and mandibular continuity symmetry reconstruction. The plate was printed in titanium following state-of the-art selective laser sintering technology. The bimaxillary surgery and mandibular reconstruction were done simultaneously as planned along with an iliac-crest bone graft. This patient confirms the advantages of 3D computer-aided design/computer-aided manufacture technologies in optimizing clinical outcomes for cranio-maxillofacial reconstruction, especially when conducting two simultaneous clinical procedures.

Which Factors Are Associated with Open Reduction of Adult Mandibular Condylar Injuries?

BACKGROUND: The purpose of this study was to identify factors associated with the decision to perform open reduction and internal fixation of mandibular condylar fractures. METHODS: This was a retrospective cohort study of patients with mandibular condylar fractures managed by the plastic and reconstructive surgery, oral and maxillofacial surgery, and otorhinolaryngology services over a 15-year period. Bivariate associations and a multiple logistic regression model were computed for injury characteristics that were associated with open reduction and internal fixation. For all analyses, a value of p ≤ 0.05 was considered significant. RESULTS: Six hundred fifty-four condylar injuries were identified in 547 patients. The sample's mean age was 36.0 ± 16.5 years, 20.5 percent were women, and 63 percent were Caucasian. The most common mechanisms of injury were motor vehicle collisions (49 percent), 53.4 percent involved the subcondylar region and 20 percent were bilateral injuries. Associated noncondylar mandibular fractures were present in 60 percent of cases; 20.7 percent were managed with open reduction and internal fixation. The overall complication rate was 21.6 percent. In a multiple logistic regression model, factors associated with an increased likelihood of open reduction and internal fixation were the presence of extracondylar mandibular injuries, condylar neck or subcondylar region injuries, increasing dislocation, and treatment by plastic and reconstructive surgery/oral and maxillofacial surgery (p ≤ 0.04). CONCLUSIONS: Increasing severity of mandibular injury, lower level of fracture, joint dislocation, and treatment by plastic and reconstructive surgery/oral and maxillofacial surgery are associated with open reduction and internal fixation of mandibular condylar injuries. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, III.

Management of combat-related facial injuries.

INTRODUCTION: Combat-related facial injuries involve various lesions of the mouth, the eye sockets and the facial bones. The goal of this study is to precise the particularities of these affections and their therapeutic management. METHODS: A retrospective study was performed about 56 cases of combat-related facial injuries over a period of 5 years (2010 - 2014). RESULTS: Our study included 56 male patients with an average age of 29 years (20-37). The trauma occurred during a real security intervention in all the cases. It was isolated in 18 cases and associated to other lesions in 38 cases. Clinical examination revealed facial edema (57%), facial cuts and lacerations (74%), broken teeth (14%), nasal deformation (26%), skin defect (16%) and periorbital ecchymosis (32%). The diagnosis retained after clinical examination and imaging exams were:  fractures of the mandible (34 cases), of the eye sockets (18 cases), of the nasal bones (15 cases), parotid gland injury (5 cases) and facial arterial injuries in (24 cases). The treatment was surgical in all the cases: stabilization of fractured segments (43 cases), suture of facial and vascular lacerations (51 cases), reduction of nasal fractures (15 cases), and reposition of teeth dislocations (35 cases). The evolution was good in 34 cases. The functional sequelae noted were ophthalmic (7 cases), dental abnormal occlusions (11 cases), residual trismus (4 cases) and facial palsy in 2 cases. CONCLUSION: Combat related facial injuries must be diagnosed and treated early to prevent the functional and, sometimes, life-threatening damages dues to those lesions.

Bone histomorphometry detection of autologous bone powder graft repair of partial mandibular defects in rabbits.

The aim of this study was to understand the effect of autologous bone powder graft repair of partial mandibular defects of rabbits by the quantitative detection of bone formation. New Zealand rabbits (N = 18) were selected as the test objects, and subjected to bilateral partial mandibular defect induction. One side of the mandibular defect acted as the test group, upon which the autologous bone powder backfilling graft was performed; the other side was put aside and acted as the negative control group. All used an autogenous control. At the twelfth postoperative week, the animals were sacrificed, and semi-automatic image analysis was used to conduct bone histomorphometric detection. Immediately subsequent, quantitative detection of bone formation was performed in the test group. Fluorescent perimeter percent, mineralization apposition rate, and bone formation rate were selected as the dynamic indicators; and trabecular area percent, trabecular thickness, trabecular number, and trabecular separation degree were selected as the static indicators for single factorial variance testing. It was found that the values of P are less than 0.05 between the test group and the control group, indicating that the effect of autologous bone powder graft repair on partial mandibular defects in rabbits was positive.

The surgical treatment of reinforced steel bar injury penetrating the skull base and maxilla-mandibular area.

Penetrating injuries with reinforced screwed steel bar in the skull base represent a unique challenge for oral maxillofacial surgeons. Management of these injuries is complicated by associated injuries and the proximity to vital neurovascular structures. A 35-year-old man was admitted to our hospital because of injury due to a downward fall upon a reinforced steel rod. Radiologic studies of the skull base revealed that the steel bar traversed the temporomandibular space between the left cervical spine and the mastoid process to the space between the inner side of the left mandibular ramus and the maxilla. We performed osteotomy of the left mastoid process tip and the left mandibular ramus to take out the steel bar from the maxilla and repaired the left mandible with internal fixation. Appropriate preoperative planning, including three-dimensional computed tomographic images, is integral in the surgical approach for the safe removal of such objects.

Defeito osteoporótico focal do adulto: conceito, diagnóstico e os implantes osseointegráveis / Focal osteoporotic bone marrow defect: concept, diagnosis and osseointegrated implants

O Defeito Osteoporótico Focal do Adulto deve constar na lista de diagnósticos diferenciais de lesões radiolúcidas uni e multiloculares, especialmente as mandibulares, pequenas e médias. O diagnóstico clínico e imaginológico pode ser seguro, mas, se houver uma dúvida mínima, deve-se providenciar biópsia e o laudo revelará um tecido medular hematopoieticamente ativo. O Defeito Osteoporótico Focal do Adulto não inviabiliza os implantes osseointegráveis na região, pois biologicamente não impede o reparo ósseo, e até pode favorecê-lo, pela medula óssea ter numerosas células-tronco e ser rica em células osteoprogenitoras. O diagnóstico deve ser seguro para diferenciá-lo de outras lesões semelhantes na mandíbula, mas agressivas. As principais características do Defeito Osteoporótico Focal do Adulto são ressaltadas neste trabalho, considerando-o uma variável do trabeculado ósseo e medular em um contexto de normalidade

Focal osteoporotic defects in adult patients must be on the list of differential diagnosis of small and medium uni and multiocular radiolucent lesions, especially in the mandible. Clinical and imaginologic diagnoses are safe, however, a biopsy must be performed in case of doubt, in which case the report will include hematopoietically active medullary tissue. Focal osteoporotic defects in adult patients does not hinder osseointegrated implant placement because, biologically speaking, it does not hamper bone repair. In fact, it may even favor it as a result of the large number of stem and osteoprogenitor cells comprising the bone marrow. Safe diagnosis is essential to differentiate focal osteoporotic defects from more severe lesions also found in the mandible. Focal osteoporotic defects in adult patients is considered a variation of normal bone and medullary trabecula, and its main characteristics are highlight herein