RESUMO
Os deslocamentos condilares da Articulação Temporomandibular (ATM) correspondem à perda de contato parcial ou total entre as duas superfícies ósseas articulares, na qual se refere o côndilo ultrapassa anteriormente a eminência articular. Entretanto, quando este se mantém à frente da eminência, necessitando de redução clínica, corresponde ao quadro clínico de luxação. O deslocamento geralmente é ocasionado por trauma ou hipermobilidade mandibular, assim como fatores agravantes: anatomia articular desfavorável, espasmos musculares, flacidez nos ligamentos articulares, desordens psicogênicas, síndromes, abertura bucal excessiva ao bocejar, rir, comer e em tratamentos odontológicos prolongados. Este trabalho apresenta dois casos clínicos em pacientes com histórico de luxação recidivante e crônico da ATM, em que o tratamento proposto de forma inicial utilizou a injeção de sangue autógeno (hemartrocentese) por representar uma forma menos invasiva. Dessa forma, visamos expor a aplicabilidade dessa modalidade de tratamento que se mostra como uma alternativa eficaz e conservadora para luxação recidivante crônica da ATM... (AU)
Condylar displacement of Temporomandibular Joint (TMJ) corresponds to the loss of partial or total contact between the two articular bone surfaces, in which the condyle surpasses the articular eminence. However, when the condyle remains ahead of the eminence, requiring clinical reduction, it corresponds to the clinical scenario of dislocation. TMJ dislocation is usually caused by trauma or mandibular hypermobility, as well as aggravating factors: unfavorable joint anatomy, muscle spasms, sagging of joint ligaments, psychogenic disorders, syndromes, excessive mouth opening while yawning, laughing, eating, and prolonged dental treatments. This paper presents two clinical cases of patients with history of recurrent and chronic TMJ dislocation, where the initial treatment was the injection of autogenous blood (hemartrocentesis) because it represented a less invasive modality. Thus, we aim to expose the applicability of this technique that is shown to be an effective and conservative alternative for chronic TMJ dislocation... (AU)
Assuntos
Humanos , Masculino , Feminino , Adulto , Articulação Temporomandibular , Dor Facial , Luxações Articulares , Injeções Intra-Articulares , Ligamentos Articulares , Osso e Ossos , Anatomia , ArticulaçõesRESUMO
Assess clinical studies regarding accuracy between virtual planning of computer-guided surgery and actual outcomes of dental implant placements in total edentulous alveolar ridges. A PubMed search was performed to identify only clinical studies published between 2011 and 2016, searching the following combinations of keywords: "Accuracy AND Computer-Assisted Surgery AND Dental Implants." Study designs were identified using the terms: Case Reports, Clinical study, Randomized Controlled Trial, Systematic Reviews, Meta-Analysis, humans. Level of agreement between the authors in the study selection process was substantial (k = 0.767), and the study eligibility was considered excellent (k = 0.863). Seven articles were included in this review. They describe the use of bone and muco-supported guides, demonstrating angular deviations cervically and apically ranging from (minimum and maximum means), respectively, 1.85-8.4 (°), 0.17-2.17 (mm), and 0.77-2.86 (mm). Angular deviations obtained most inaccuracy in maxila. For cervical and apical deviations, accuracy was preponderantly lower in maxilla. Despite the similar deviations measurement approaches described, clinical relevance of this study may be useful to warn the surgeon that safety margins in clinical situations.