Oliver Schierz1, Philipp Wagner2, Angelika Rauch1, Daniel R Reissmann3. 1. a Department of Prosthodontics and Materials Science , University of Leipzig , Leipzig , Germany. 2. b Private Dental Practice , Weissenfels , Germany. 3. c Department of Prosthetic Dentistry, Center for Dental and Oral Medicine , University Medical Center Hamburg-Eppendorf , Hamburg , Germany.
Abstract
OBJECTIVE: Valid and reliable recording is a key requirement for accurately simulating individual jaw movements. METHODS: Horizontal condylar inclination (HCI) and Bennett's angle were measured using a digital jaw tracker (Cadiax® Compact 2) in 27 young adults. Three mounting methods (paraocclusal tray adapter, periocclusal tray adapter, and tray adapter with mandibular clamp) were tested. RESULTS: The mean values of the HCI differed by up to 10° between the mounting methods; however, the values for Bennett's angle did not differ substantially. While the intersession reliability of the Bennett's angle assessment did not depend on the mounting method, the reliability of the HCI assessment was only fair to good for the paraocclusal mounting method but poor for both periocclusal mounting methods. DISCUSSION: For attaching the tracing bow of jaw trackers to the mandible, a paraocclusal tray adapter should be applied, to achieve the most reliable results.
OBJECTIVE: Valid and reliable recording is a key requirement for accurately simulating individual jaw movements. METHODS: Horizontal condylar inclination (HCI) and Bennett's angle were measured using a digital jaw tracker (Cadiax® Compact 2) in 27 young adults. Three mounting methods (paraocclusal tray adapter, periocclusal tray adapter, and tray adapter with mandibular clamp) were tested. RESULTS: The mean values of the HCI differed by up to 10° between the mounting methods; however, the values for Bennett's angle did not differ substantially. While the intersession reliability of the Bennett's angle assessment did not depend on the mounting method, the reliability of the HCI assessment was only fair to good for the paraocclusal mounting method but poor for both periocclusal mounting methods. DISCUSSION: For attaching the tracing bow of jaw trackers to the mandible, a paraocclusal tray adapter should be applied, to achieve the most reliable results.
Entities:
Keywords:
Pantography; computerized axiography; jaw tracker; occlusal clutch; sagittal and horizontal condylar inclination; young adults