[Correlation analysis on the malocclusion and articulation of skeletal angle III malocclusion in mixed dentition].
OBJECTIVE
To investigate the effects of skeletal Class III malocclusion in mixed dentition on speech articulation and to look for which factors lead to the speech errors.


METHODS
Thirty-eight children with skeletal Angle Ill malocclusion in mixed dentition were selected as a sample group and 40 children with normal occlusion in mixed dentition as a control group. Two phoneticians evaluated their articulations and wrote down error phonemes respectively. The correlation analysis was undertaken between the number of errors and the measurements of patients' cephalometry.


RESULTS
The number of errors were correlated significantly with overbite, UI-LI, OBJ (OB+OJ) and TD-PW.


CONCLUSIONS
There is articulatory malfunction in the majority of skeletal Angle III malocclusion patients in mixed dentition. Articulatory malfunction is related to the position of incisors and the tongue.
Wang
Lan-Lei
LL
Dept. of Dentistry, The Affiliated Hospital of Shandong Traditional Medical University, Jinan 250011, China.
Yang
Jia-Feng
JF
Chen
Jie
J
Liu
Xin-Qiang
XQ
Fan
Cun-Hui
CH
Liu
Jun
J
D002508:Cephalometry; D002648:Child; D003766:Dental Occlusion; D003818:Dentition, Mixed; D006801:Humans; D007180:Incisor; D008297:Male; D008310:Malocclusion; D008313:Malocclusion, Angle Class III