The effects of Tip-Edge plus appliance in the treatment of Angle Ⅱ1 malocclusion and the mechanism were investigated. Fifty-two Angle Ⅱ1 children, aged from 12.3-14.2 years, with mandibu- lar retrusion in permanent ...The effects of Tip-Edge plus appliance in the treatment of Angle Ⅱ1 malocclusion and the mechanism were investigated. Fifty-two Angle Ⅱ1 children, aged from 12.3-14.2 years, with mandibu- lar retrusion in permanent dentition were selected and treated with Tip-Edge plus appliance. Lateral cephalometric films taken before and after treatment were analyzed. The arithmetic mean and standard deviation were calculated for each variable. Paired t-test was performed to evaluate the significant treatment change. Results showed that the average treatment time was 16 months. Normal overjet and overbite were established with retroclination of upper incisors and proclination of lower incisors. U1-NA was decreased by 15.4° （P〈0.01）. ANB and Y axial angle were decreased significantly （P〈0.05） Soft tissue measurements showed that FCA and UL-E were decreased dramatically （P〈0.05）, and LL-E was increased significantly （P〈0.05）. Remarkable soft tissue change was noted after the treatment and convex facial profile changed to the straight profile. In conclusion, Tip-Edge plus technique can quickly and efficiently correct anterior bite and lateral outlook.展开更多
目的:利用SanderⅡ功能矫治器的腭导杆、上颌镍钛螺旋扩弓簧和下颌扩弓簧、分体式的独特设计,矫治Angl eⅡ类1分类患者生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者。方法:病例纳入标准为Angl eⅡ类1分类生长高峰...目的:利用SanderⅡ功能矫治器的腭导杆、上颌镍钛螺旋扩弓簧和下颌扩弓簧、分体式的独特设计,矫治Angl eⅡ类1分类患者生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者。方法:病例纳入标准为Angl eⅡ类1分类生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者,下颌平面角为均角或底角。共有13人配戴SanderⅡ功能矫治器1年,拍治疗前后头颅定位侧位片。用西安交通大学口腔医院正畸科X线头影测量分析方法分析治疗前后X线测量数据,并用SPSS18.0软件配对t检验进行统计学处理。结果:ANB°、ANS-Pt m、Co-Pg、U1-APg、L1-NB距、L1-NB角、L6-MP、UL-El i ne、∠N'-Sn-Pg<0.01有非常显著统计学意义;Wi t s值、NA-Pg、U1-SN角、U6-PP、∠N'-Pg'-FH,P<0.05有显著统计学意义。结论:上下颌骨相对位置改变明显,导下颌前伸明显、上颌基骨长度有增长;下颌基骨长度增长显著;面凸角变小;上颌前牙内收明显,上下第一磨牙伸长,下面高增长,但相对全面高协调。软组织上唇突度减小、颏部前移,软组织侧貌与骨组织改建一致。展开更多
基金supported by grants from the National Natural Science Foundation of China(No.81100776)Army Medical Research "12th Five-Year Plan" project(CWS11J118)
文摘The effects of Tip-Edge plus appliance in the treatment of Angle Ⅱ1 malocclusion and the mechanism were investigated. Fifty-two Angle Ⅱ1 children, aged from 12.3-14.2 years, with mandibu- lar retrusion in permanent dentition were selected and treated with Tip-Edge plus appliance. Lateral cephalometric films taken before and after treatment were analyzed. The arithmetic mean and standard deviation were calculated for each variable. Paired t-test was performed to evaluate the significant treatment change. Results showed that the average treatment time was 16 months. Normal overjet and overbite were established with retroclination of upper incisors and proclination of lower incisors. U1-NA was decreased by 15.4° （P〈0.01）. ANB and Y axial angle were decreased significantly （P〈0.05） Soft tissue measurements showed that FCA and UL-E were decreased dramatically （P〈0.05）, and LL-E was increased significantly （P〈0.05）. Remarkable soft tissue change was noted after the treatment and convex facial profile changed to the straight profile. In conclusion, Tip-Edge plus technique can quickly and efficiently correct anterior bite and lateral outlook.
文摘目的:利用SanderⅡ功能矫治器的腭导杆、上颌镍钛螺旋扩弓簧和下颌扩弓簧、分体式的独特设计,矫治Angl eⅡ类1分类患者生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者。方法:病例纳入标准为Angl eⅡ类1分类生长高峰前期或高峰期、替牙晚期或恒牙早期的深覆牙合、深覆盖患者,下颌平面角为均角或底角。共有13人配戴SanderⅡ功能矫治器1年,拍治疗前后头颅定位侧位片。用西安交通大学口腔医院正畸科X线头影测量分析方法分析治疗前后X线测量数据,并用SPSS18.0软件配对t检验进行统计学处理。结果:ANB°、ANS-Pt m、Co-Pg、U1-APg、L1-NB距、L1-NB角、L6-MP、UL-El i ne、∠N'-Sn-Pg<0.01有非常显著统计学意义;Wi t s值、NA-Pg、U1-SN角、U6-PP、∠N'-Pg'-FH,P<0.05有显著统计学意义。结论:上下颌骨相对位置改变明显,导下颌前伸明显、上颌基骨长度有增长;下颌基骨长度增长显著;面凸角变小;上颌前牙内收明显,上下第一磨牙伸长,下面高增长,但相对全面高协调。软组织上唇突度减小、颏部前移,软组织侧貌与骨组织改建一致。
