Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/66066
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Type: Journal article
Title: Patterns and forces of occlusal contacts during lateral excursions recorded by the T-Scan II system in young Chinese adults with normal occlusions
Author: Wang, Y.
Cheng, J.
Chen, Y.
Yip, K.
Smales, R.
Citation: Journal of Oral Rehabilitation, 2011; 38(8):571-578
Publisher: Blackwell Science Ltd
Issue Date: 2011
ISSN: 0305-182X
1365-2842
Statement of
Responsibility: 
Y.-L. Wang, J. Cheng, Y.-M. Chen, K. H.-K. Yip, R. J. Smales
Abstract: The objective was to characterise the patterns and forces of occlusal contacts during lateral mandibular excursions in a young Chinese adult population. Angle Class I normal occlusions in 85 dental students aged 20–29 were evaluated using the T-Scan II occlusal imaging and analysis system. The frequency of occlusal contacts was recorded for right and left lateral excursions at the position of lateral disclusion, at the canine-to-canine position and at the lateral maximal position. At the canine-to-canine position, the occlusal contact patterns were classified, and the relative forces were compared by multiple regression analysis, with α = 0·05. At the position of lateral disclusion, a high percentage of canine contacts (58·5%) and individual posterior tooth contacts on the working side was observed. At the canine-to-canine position, the canines on the working side contacted most frequently (68·9%), and the occlusal contact patterns could be classified into six groups. At the lateral maximal position, incisors (39·0%) and canines (32·3%) contacted most frequently. At the canine-to-canine position, subjects with occlusal contacts only on canines or on first premolars on the working side had the lowest relative occlusal forces (P < 0·001). Canine protection and group function do not identify all descriptors for lateral occlusal contact patterns in the natural dentition. Six occlusal contact patterns were found at the lateral canine-to-canine position.
Keywords: T-Scan; occlusal contacts; canine protection; group function
Rights: © 2011 Blackwell Publishing Ltd.
RMID: 0020111157
DOI: 10.1111/j.1365-2842.2010.02194.x
Appears in Collections:Dentistry publications

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