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2006•Beijing Journal of StomatologyRequires access

Changes of soft tissue profile after bimaxillary surgery

Zhang Xi-e

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Abstract

Objective To study the changes of the lateral soft tissue profile of the patients who had mandibular prognathism with maxillary deficiency.Methods X-ray cephalometry of 20 consecutive patients was taken before and after operation . All data were analyzed by SPSS software.Results The mean ratios of soft tissue to hard tissue were as follows:LI:li=0.92;Si:B=0.97;PG:pg=0.92. Regression formula was established.Conclusion There wasn't a correlation between maxillary soft tissue and hard tissue changes, but there was a correlation between mandibular soft tissue and hard tissue changes.

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Objective To study the changes of the lateral soft tissue profile of the patients who had mandibular prognathism with maxillary deficiency.Methods X-ray cephalometry of 20 consecutive patients was taken before and after operation . All data were analyzed by SPSS software.Results The mean ratios of soft tissue to hard tissue were as follows:LI:li=0.92;Si:B=0.97;PG:pg=0.92. Regression formula was established.Conclusion There wasn't a correlation between maxillary soft tissue and hard tissue changes, but there was a correlation between mandibular soft tissue and hard tissue changes.

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Available abstract

Objective To study the changes of the lateral soft tissue profile of the patients who had mandibular prognathism with maxillary deficiency.Methods X-ray cephalometry of 20 consecutive patients was taken before and after operation . All data were analyzed by SPSS software.Results The mean ratios of soft tissue to hard tissue were as follows:LI:li=0.92;Si:B=0.97;PG:pg=0.92. Regression formula was established.Conclusion There wasn't a correlation between maxillary soft tissue and hard tissue changes, but there was a correlation between mandibular soft tissue and hard tissue changes.

Key concepts: Soft tissue, Mandibular prognathism, Hard tissue, Medicine, Cephalometry, Dentistry, Orthodontics, Surgery

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