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Open AccessChanges in occlusal contact area and average bite pressure
during treatment of anterior crossbite in primary dentition
Changes in occlusal contact area and average bite pressure during treatment of anterior crossbite in primary dentition
- Yasutaka Yawaka1,*,
- Syouji Hironaka2
- Akemi Akiyama3
- Ikuko Matzuduka3
- Chihiro Takasaki1
- Haruhisa Oguchi1
1Department of Oral Functional Science (Pediatric Dentistry), Hokkaido University, Graduate School of Dental Medicine, Japan
2Department of Hygiene and Oral Health, Showa University, School of Dentistry, Japan
3dentisit in private practice, Japan
DOI: 10.17796/jcpd.28.1.25472t792t36p50m Vol.28,Issue 1,January 2004 pp.75-80
Published: 01 January 2004
*Corresponding Author(s): Yasutaka Yawaka E-mail: yawaka@den.hokudai.ac.jp
Abstract
The purpose of this study was to examine changes in functional parameters of patients with anterior crossbite in primary dentition during orthodontic treatment. Occlusal contact area (OCA), average bite pressure (ABP) and integrated occlusal load (IOL) were measured. Data obtained before the start of treatment (period A), data obtained when crossbite had improved (period B) and data obtained when the appliance had been removed (period C) were compared. OCA showed the lowest value in period B, and then gradually increased. ABP increased until period B and then declined or became constant. OCA and IOL showed significant differences in periods A and B and periods B and C (p<0.05). The results suggest that about 6 months is required for stability of the occlusion and acquisition of function in the new occlusion after improvement of crossbite.
Cite and Share
Yasutaka Yawaka,Syouji Hironaka,Akemi Akiyama,Ikuko Matzuduka,Chihiro Takasaki,Haruhisa Oguchi. Changes in occlusal contact area and average bite pressure during treatment of anterior crossbite in primary dentition. Journal of Clinical Pediatric Dentistry. 2004. 28(1);75-80.
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