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目的分析恒牙初期安氏Ⅱ类、Ⅲ类错畸形颅面部硬软组织侧貌特征,探讨不同错畸形的正畸治疗关键。方法 2000—2012年自贡市第四人民医院口腔科就诊的汉族正畸患者中选取80例错畸形青少年,分为安氏Ⅱ类组40例、安氏Ⅲ类组40例;同期选取自贡市中小学口腔健康普查正常青少年40名为正常对照组。确定常用的7项软组织指标和16项硬组织指标进行X线头影测量分析。结果安氏Ⅱ类组除7项硬组织测量值外,其余软、硬组织测量值与正常对照组相比,差异均有统计学意义(P<0.05或0.01);而安氏Ⅲ类组则有9项硬组织和5项软组织指标与正常对照组相比,差异有统计学意义(P<0.05或0.01)。结论不同的错畸形具有各自典型的颅面特征。临床治疗中应有针对性地纠正牙齿和颌骨异常来改善软组织不调,最终取得和谐美观的侧貌。
OBJECTIVE: To analyze the features of hard and soft tissues of Craniofacial Class Ⅱ and Class Ⅲ malocclusion in the early stage of permanent teeth and discuss the key points of orthodontic treatment. Methods Eighty cases of malocclusion malocclusion were selected from orthodontic patients in the Department of Stomatology, Fourth People’s Hospital of Zigong City from 2000 to 2012. They were divided into 40 cases of Class Ⅱ and 40 cases of Class Ⅲ. In the same period, 40 primary and middle school oral health census normal adolescents as a normal control group. Determine the commonly used seven soft tissue indicators and 16 hard tissue indicators for X-cephalometry analysis. Results Compared with the normal control group, the measured values of soft and hard tissues in group Ⅱ except for the seven hard tissue measurements were significantly different (P <0.05 or 0.01), while those in group Ⅲ There were 9 hard tissue and 5 soft tissue indexes compared with the normal control group, the difference was statistically significant (P <0.05 or 0.01). Conclusion Different malformations have their own typical craniofacial features. Clinical treatment should be targeted to correct abnormalities of the teeth and jaw to improve soft tissue disorders, and ultimately achieve the appearance of a harmonious appearance.