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KMID : 0361919980280050791
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Korean Journal of Orthodontics
1998 Volume.28 No. 5 p.791 ~ p.802
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The Angulation and Inclination of Individual Tooth to FH Plane in Normal Occlusion
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Abstract
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The purpose of this study was to obtain the angulation and inclination of FACC of all teeth to FH plane. Study models of 31 persons with normal occlusion were selected and mounted on the semiadjustable articulator for this study. Using TARG. with a little modified method, the angulation and inclination of FACC of all teeth to FH plane were measured and then the measurements were analyzed statistically.
The obtained results were as follows.
Mean, standard deviation, maximum value, and minimum value of the angulation and inclination of FACC of upper and lower teeth were obtained.
The FACC in both upper and lower arch was progressively lingually-inclined from anterior teeth to posterior teeth. In the angulations of FACC of upper teeth, central and lateral incisor showed similar value. Yet, the FACC of the rest was progressively distally-angulated -from the canine to posterior teeth. The FACC in lower arch was progressively mesially-angulated from anterior teeth to posterior teeth.
The angulation and inclination of FACC of any tooth in both upper and lower teeth correlated strongly and positively with the angulation and inclination of FACC of adjacent tooth.
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