Influence of Endodontic Treatment and Coronal Restoration on Status of Periapical Tissues: A Cone-beam Computed Tomographic Study.

INTRODUCTION: This cross-sectional study determined the prevalence of apical radiolucency in 1290 root canal-treated teeth and the correlation between endodontic treatment quality and the presence of coronal restorations with apical radiolucency using cone-beam computed tomographic imaging. METHODS: Cone-beam computed tomographic scans were analyzed, and teeth were classified as healthy or diseased according to the periapical status. Other factors were also evaluated for their association with the apical diagnosis including sex, quality of endodontic treatment, presence of coronal restorations and posts, and apical level of filling. RESULTS: Of the treated teeth, 48.83% were classified as healthy. Only 55.11% of the teeth had endodontic treatment rated as adequate. The quality of endodontic treatment and the presence of coronal restoration were statistically correlated with the presence or absence of an apical radiolucency (P < .0001). Combined data revealed that teeth with both adequate endodontic treatment and the presence of coronal restoration showed significantly better apical status than the other combinations (P < .001). Canals filled up to 0-2 mm short of the apex had a significantly higher number of teeth rated as healthy compared with overfilled or underfilled cases (P = .001). The presence of a post was not found to be a statistical significant factor (P = .81). CONCLUSIONS: Data showed a relatively high prevalence of apical radiolucencies in root canal-treated teeth. The quality of the endodontic treatment, the presence of coronal restoration, and apical extent of the root canal filling were significantly associated with healthy apical tissues.

Evaluation of root canal configuration of maxillary molars in a Brazilian population using cone-beam computed tomographic imaging: an in vivo study.

INTRODUCTION: The aim of this study was to analyze and characterize root canal morphology of maxillary molars of the Brazilian population using cone-beam computed tomographic (CBCT) imaging. METHODS: Patients referred for a CBCT radiographic examination for accurate diagnosis and treatment planning were enrolled in the study. A total of 620 healthy, untreated, fully developed maxillary first and second molars were included (314 first molars and 306 second molars). The following observations were recorded: (1) number of roots and their morphology, (2) number of canals per root, (3) fused roots, and (4) primary variations in the morphology of the root canal systems. RESULTS: First and second molars showed a higher prevalence of 3 separate roots, mesiobuccal, distobuccal, and palatal, with 1 canal in each root (52.87% and 45.09%, respectively). Two canals in the mesiobuccal roots represented 42.63% of teeth, whereas mesiobuccal roots of second molars presented 2 canals in 34.32%. The most common anatomic variation in the maxillary first molar was related to the root canal configuration of the mesiobuccal root, whereas the root canal system of the maxillary second molar teeth showed more anatomic variables. CONCLUSIONS: Mesiobuccal roots of maxillary molar teeth had more variation in their canal system than the distobuccal or palatal roots. The root canal configuration of the maxillary second molars was more variable than the first molars in a Brazilian population. CBCT imaging is a clinically useful tool for endodontic diagnosis and treatment planning.

Diagnóstico diferencial de cartilagem tritícea calcificada com doença ateroesclerótica- ateroma / Differential diagnosis of cartilage tritici and calcified atherosclerotic disease - atheroma

A radiografia panorâmica continua sendo o exame mais solicitado pelo cirurgião dentista. Com certa frequência, o Radiologista pode observar a presença de imagens radiopacas localizadas em áreas de tecido mole. Dentre tantas estruturas anatômicas e entidades patológica que fornecem tais imagens, a imagem de um ateroma, calcificação na artéria carótida, e dascartilagens tritíceas, localizadas nos ligamentos tireohioideos, fornecem imagens na radiografia panorâmica muito semelhante quanto ao tamanho, à forma, à radiopacidade e, principalmente,à localização, região do pescoço no espaço intervertebral C3 e C4. Com base na literatura e ocorrência de casos nas Clínicas de Radiologia da Faculdade de Odontologia de Piracicaba- UNICAMP e Faculdade de Odontologia da PUC-Minas, o objetivo deste trabalho é elucidar os profissionais no procedimento de diagnóstico dessas condições, permitindo identificar pacientes de risco em desenvolver doença encéfalo vascular.

Panoramic radiography remains the most requested examination by a dentist. Not infrequently, the radiologist can observe the presence of radiopaque images located in areas of soft tissue. Among many anatomical and pathological entities that provide such images, the image of an atheroma, calcification inthe carotid artery, and cartilage tritici, located in the ligaments tireohioideos provide images in panoramic radiography very similarin size, shape, and the radiopacity mainly to the location, the neck intervertebral space C3 and C4. Based on the literature and the occurrence of cases in the Clinic of Radiology, Facultyof Dentistry of Piracicaba - UNICAMP and Faculty of Dentistry, PUC-Minas, the aim of this study is to elucidate the professional diagnostic procedure in these conditions, to identify patients a trisk develop brain vascular disease.

Sialolito na glândula submandibular: relato de caso clínico / Sialolith of the submandibular salivary gland: case report

Sialolitíase é caracterizada pela formação de cálculos salivaresque se desenvolvem no interior do sistema ductal salivar, decrescimento gradual, lento e assintomático. Acometem principalmenteas glândulas salivares maiores. O presente trabalhotem como objetivo relatar um caso de sialolito assintomático depequenas proporções, localizado na glândula submandibular,identificado casualmente em exame de Tomografia Computadorizadade Feixe Cônico (TCFC) para realização de cirurgiade colocação de implante. Devido ao tamanho do sialolito e daausência de sintomas, o caso foi tratado de forma conservadora,não necessitando de remoção cirúrgica.

Sialolithiasis is characterized by the formation of salivarycalculi that develop within the salivary ductal system of gradualgrowth, slow and asymptomatic. Affect mainly the salivaryglands. This paper aims to report a case of sialolith, with smallproportions, located in the submandibular gland and asymptomatic,which was identified incidentally when the patientunderwent a Cone Bean Computed Tomography (CBCT) examinationfor a surgery to implant placement. Due to the sizeof sialolith and the absence of symptoms, the case was treatedconservatively, not requiring surgical removal.