Centric slide in different Angle's classes of occlusion

• Published in: Annals of anatomy Vol. 203; pp. 47 - 51
• Main Authors: Čimić, Samir, Badel, Tomislav, Šimunković, Sonja Kraljević, Pavičin, Ivana Savić, Ćatić, Amir
• Format: Journal Article
• Language: English
• Published: Germany Elsevier GmbH 01.01.2016
• Subjects: Adult; Centric Relation; Centric slide; Dental Occlusion; Female; Humans; Jaw - diagnostic imaging; Male; Malocclusion; Malocclusion, Angle Class I - diagnostic imaging; Malocclusion, Angle Class I - pathology; Malocclusion, Angle Class II - diagnostic imaging; Malocclusion, Angle Class II - pathology; Malocclusion, Angle Class III - diagnostic imaging; Malocclusion, Angle Class III - pathology; Mandibular condyle; Maximum intercuspation; Reference Values; Temporomandibular joint; Temporomandibular Joint - diagnostic imaging; Temporomandibular Joint - pathology; Ultrasonography; Young Adult; Temporomandibular joint; Malocclusion; Centric slide; Maximum intercuspation; Mandibular condyle
• ISSN: 0940-9602; 1618-0402
• DOI: 10.1016/j.aanat.2015.09.001

The purpose of this study was to test the possible differences in centric slide values between different Angle's classes of occlusion. The study included 98 participants divided into four groups: Angle's class I, Angle's class II, subdivision 1, Angle's class II, subdivision 2 and Angle's class III. All recordings were obtained using an ultrasound jaw tracking device with six degrees of freedom. The distance between the maximum intercuspation (reference position) and the centric occlusion was recorded at the condylar level. Anteroposterior, superoinferior and transversal distance of the centric slide were calculated for each participant, and the data were statistically analyzed (analysis of variance and Newman–Keuls post hoc test). No statistically significant difference was found in the anteroposterior and transversal distance of the centric slide between tested groups, while Angle's class II, subdivision 2 showed smaller vertical amount of the centric slide compared to Angle's class I and class II, subdivision 1. None of the 98 participants showed coincidence of centric occlusion and maximum intercuspation. Our results suggest that coincidence of the maximum intercuspation with the centric occlusion should not be expected. Smaller extent of the vertical distance of the centric slide could be morphological and a functional expression characteristic of the Angle's class II, subdivision 2.