[Computer-aided analysis of maxillofacial soft tissue simulating with vertical dimensions of 4 different types]
In this study,33 parameters relating to vertical dimension of occlusion(VDO) of 19 subjects' maxilofacial soft tissue of four different vertical dimentsions(VDs) were measured.All of them were in intercusping position,with the technique of digital imaging analysis.The findings as follows:(1)A set of normal values of facial soft tissue's parameters of four different VDs was established,which was suitable for the age group of 21-24 years old.(2)When the VD was raised to the certain height(H4),it would affect the size of angle of the inferior soft tissue of lip distinctly,furthermore,the correlation analysis showed that there was a positive correlation between the variance of VDs would arouse the change of the inferior soft tissues of lip,especially its size of angle,is very correspondingly and obviously.
Lu
E Y
EY
Department of Prosthodonties, Ninth People's Hospital, School of Stomatology,Shanghai Second Medical University. Shanghai 200011, China.
Luo
J P
JP
Chang
C Y
CY