若年者の前歯部反対咬合者および正常被蓋者におけるICP-CR differenceの検討

概要

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This study evaluated ICP-CR (Intercuspal Position -Centric Relation) difference at bilateral condyles and incisors in growing patients with anteriro crossbite (mean age; 9 years 2 months), and compared with that of subjects with normal anterior overjet (mean age; 9 years 8 months), using an indicator of the mandibular position, Mandibular Positioning Indicator (MPI). With respect to direction of the ICP-CR difference at condyles and incisors, there were no significant defferences between subjects with crossbite and normal overjet. In contrast, the subjects with crossbite showed significantly larger amounts of ICP-CR differences at condyles and incisors. These results suggest that early correction of the anterior crossbite and premature contact would be important to prevent latent progression of temporomandibular joint complaints and promote the normal growth of the jaws.
北海道医療大学の論文
2001-12-31