Labial and buccal surface contours of Korean normal occlusion in a three-dimensional digital model / 대한치과교정학회지
Korean Journal of Orthodontics
; : 95-103, 2008.
Article
in Ko
| WPRIM
| ID: wpr-654924
Responsible library:
WPRO
ABSTRACT
OBJECTVIE: This study was performed to investigate the labio/buccal clinical crown curvatures of Korean permanent teeth and to obtain the curve-ratio data in an attempt to fabricate bracket bases fit for each individual Korean permanent tooth. METHODS: Three-dimensional digital models were made from 30 sets of dental casts with normal anatomic structures. According to the FA points, horizontal and vertical reference planes were established and lines were drawn on the tooth surfaces in reference to these planes. The curvature was expressed as the coefficient of a quadratic equation. Lines mesial, distal, gingival and occlusal to the horizontal, vertical reference planes and the FA point were drawn. RESULTS: The curvature measured for each line revealed that there are no significant differences between male and female, except for maxillary canines and maxillary second bicuspids (p > 0.05). There were notable differences in the mesio-distal or gingivo-occlusal curvatures among the mandibular lateral incisors, maxillary canines, maxillary and mandibular first and second bicuspids and first molars (p < 0.05). CONCLUSIONS: The labial & buccal crown curvatures of teeth in Korean normal occlusion were measured on the mesial and distal, gingival and occlusal sides respectively in this study. Based on these data, a SWA can be developed to fit the individual features of Korean tooth crowns.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Tooth
/
Bicuspid
/
Tooth Crown
/
Crowns
/
Incisor
/
Molar
Limits:
Female
/
Humans
/
Male
Language:
Ko
Journal:
Korean Journal of Orthodontics
Year:
2008
Type:
Article