Factores clínicos relevantes en el diagnóstico de un colapso posterior de mordida. Una revisión sistemática de reportes de caso 2021 / Relevant clinical factors in the diagnosis of a posterior bite collapse. a systematic review 2021

RESUMEN La presente investigación surge de una inquietud ante la falta de consenso sobre el concepto del colapso posterior de mordida, sobre el cual en la actualidad existe limitada literatura. El Objetivo fue Identificar los factores clínicos relevantes en el diagnóstico de colapso posterior de mordida. Es una revisión sistemática basada en reportes y series de caso. Se consideraron como dimensiones al tejido dentario, oclusión dentaria, tejido muscular, articulación temporomandibular, tejido periodontal y examen radiográfico. De 82 artículos seleccionados inicialmente, se realizó la revisión con 6 artículos, Con los artículos se ordenó la información describiendo cada uno de ellos, siendo las publicaciones entre 1987 y 2020. Podemos concluir que se identificaron los factores clínicos relevantes: pérdida de piezas dentarias, alteración de la dimensión vertical, periodontitis, desviación en la apertura y cierre del ATM, y reabsorción ósea como los más predominantes según las dimensiones de diagnóstico.

ABSTRACT The present research arises from a concern regarding the lack of consensus on the concept of posterior bite collapse on which there is currently very little literature. The Objective was identify the relevant clinical factors in the diagnosis of a posterior bite collapse. Is a systematic review based on reports and case series. Was considered as dimensions: dental occlusion, muscle tissue, temporomandibular joint, periodontal tissue and radiographic examination. Of 82 initially selected articles, the review was carried out with 6 articles. The information was ordered describing each one of them, being the publications between 1987 and 2020. We can Conclude that Relevant clinical factors for the correct diagnosis of a posterior bite collapse were identified according to the study dimensions: loss of teeth, alteration of the vertical dimension, periodontitis, deviation in the opening and closing of the TMJ, and bone resorption, as the most predominant according to the diagnostic dimensions.

Full mouth rehabilitation on the patient with deep bite and posterior bite collapse using re-establishment of occlusal vertical dimension / 대한치과보철학회지

The loss of posterior support and the abnormal jaw relation can cause pathologic findings. If deep bite patients with multiple missing teeth, can not have the stable posterior contact, the mandible moves posteriorly, and consequently the overjet and overbite get worse. And when the mandibular irregular occlusal plane is corrected, it is easier to have the bilateral balanced occlusion with the maxilla. So the treatment goal is to give proper posetrior support and establish appropriate anterior guidance, and ultimately provide improved mastication and esthetics recovery. In this case, a 68 year old man, having deep bite without posterior support was evaluated by the vertical dimesion decision flow-chart. An available prosthetic height, anterior occlusal relation such as overjet, overbite and the esthetic part such as facial height and the cephalometric analysis are the factors to be considered.

Rehabilitation of unstable occlusion caused by inter-dental arch discrepancy / 대한치과보철학회지

Inter-dental arch discrepancy between maxilla and mandible could cause three dimensional occlusal problems, and collapse of occlusal plane, multiple teeth loss and decrease of masticatory efficiency could be observed in patient having unstable occlusal contact. Patient showing posterior bite collapse, unstable occlusal contact and improper anterior guidance should be treated to recover stable centric occlusion, occlusal contact, and anterior guidance in conjunction between prosthodontics and orthodontic treatment. This clinical report describes the favorable results of orthodontic and prosthodontics rehabilitation of patient with above mentioned problems.

Full mouth rehabilitation on the patient with class II jaw relation and posterior bite collapse using reestablishment of occlusal vertical dimension: a case report

Loss of molar support and abnormal jaw relationship lead to occlusal disharmony and cause pathologic signs. Full mouth rehabilitations with reestablishment of occlusal schemes are needed. In this case, the 75 year-old female patient showed posterior bite collapse, irregular occlusal plane and Class II jaw relationship. By observing her profile and interocclusal distance, she was diagnosed as loss of occlusal vertical dimension. Treatment plan is to restore maxillay class I removable partial denture and mandibular fixed prosthesis and to establish vertical dimension and harmonious occlusal plane. Occlusal vertical dimension of 19 mm, which is obtained by 7.5 mm increase between maxillary right lateral incisor and mandibular canine, was established using temporary prosthesis via diagnostic wax-up. Patient adaptation with newly formed vertical dimension was verified during 8 week follow-up period. Within the information of interim prostheses, final restoration was constructed and delivered. The patient showed sound occlusal scheme and esthetic profile.