摘要
目的:探析固定式下颌前移矫治器对Ⅱ类错畸形患者的治疗效果。方法:入选我院2011年4月至2012年4月32例行固定式下颌前移矫治器治疗的Ⅱ类错畸形患者做为观察组,同期不愿接受矫治器治疗的30例Ⅱ类错畸形患者做为对照组,疗程9个月,治疗1月后比较两组患者治疗前后的头颅定位侧位片,总结疗效。结果:两组患者治疗前上、下颌骨和上、下颌牙列各项指标均无显著差异(均P>0.05),治疗后,观察组上切缘点-腭平面距离(26.8±3.2)、SNB(75.6±3.8)、L1-MP(98.6±7.0)、PFH(44.2±3.0)、AFH(60.4±2.2)、下颌骨综合长度(67.5±5.3)和下磨牙点至下颌平面距离(28.7±2.3)显著高于治疗前(28.2±3.2)、(77.2±3.5)、(105.6±6.1)、(46.5±2.5)、(64.1±3.0)、(69.8±5.5)和(31.6±3.5),差异具有统计学意义(均P<0.05),对照组各项指标均无显著变化(均P>0.05)。结论:固定式下颌迁移矫治器对Ⅱ类错畸形患者下颌矫正疗效较好,需进一步观察长期稳定性。
Objective： To study the fixed mandibular protraction appliance on patients with classⅡmalloclusion. Methods： Selected 32 classⅡ malloclusion patients with fixed mandibular protraction appliance in our hospital from April 2011 to April 2012 as observation group,at the same time,30 classⅡ malloclusion patients unwilling to accept appliance treatment as control group,treatment courses was 9 months,after the treatment one month,compared head positioning side position piece in two groups,and summarized the therapeutic effect before and after treatment. Results： Before treatment,There was no significant difference in each indexes of mandible and mandibular dentition between two groups（ P＆gt;0.05）. After treatment,observation group on the cutting edge of point- palatal plane distance（ 26.8 ± 3.2）,SNB（ 75.6 ± 3.8）,L1-MP（ 98.6±7.0）,PFH（ 44.2±3.0）,AFH（ 60.4±2.2）,mandibular length（ 67.5 ± 5.3） and lower molar to the mandibular plane distance（ 28.7 ± 2.3） was significantly higher than that before treatment（ 28.2 ± 3.2）,（ 77.2 ± 3.5）,（ 105.6 ± 6.1）,（ 46.5 ± 2.5）,（ 64.1 ± 3）,（ 69.8 ± 5.5） and（ 31.6 ± 3.5）,the difference were statistically significant（ P＆lt;0.05）,There’s no significant changes in the indicators between control group（ P ＆gt;0.05）. Conclusion： The mandibular deformity correction effect of fixed mandibular protraction appliance on class Ⅱ malloclusion patients is better,It needs further observe the long-term stability.
出处
《河北医学》
CAS
2014年第2期218-221,共4页
Hebei Medicine
