Treatment of Class III malocclusion using miniscrew-anchored inverted Forsus FRD: Controlled clinical trial.
Treatment of Class III malocclusion using miniscrew-anchored inverted Forsus FRD: Controlled clinical trial.
复制标题
使用微螺钉锚定倒置 Forsus FRD 治疗 III 类错牙合：对照临床试验。
作者：
O. Eissa;Mahmoud ElShennawy;Safaa M. Gaballah;Ghada Elmehy;T. El
目的：
评价使用微螺钉锚定倒置Forsus抗疲劳装置（FRD）治疗III类错（牙合）后骨骼、牙齿和软组织的变化。
材料和方法：
在这项对照临床试验中，16名患者（9名女孩和7名男孩;年龄12.45 ± 0.87岁）连续接受了微螺钉锚定倒置Forsus FRD治疗。将该组与16名未经治疗的患者（8名女孩和8名男孩;年龄11.95 ± 1.04岁）的匹配对照组进行比较。微螺钉插入双侧上颌尖牙和第一前磨牙之间。选择Forsus FRD，并以倒置方式插入下颌头帽管的近中和上颌犬齿托架的远端。
研究结果：
平均6.4 ± 1.46个月，I类磨牙和尖牙关系达到正覆盖。上颌向前生长有显著性增加（SNA°：1.73 ± 0.53，P < .5），上颌切牙前向有显著性增加（U1至NA°：-0.39 ± 0.33，P > .5），下切牙有显著性后倾（L1至NB°：1.65 ± 0.83，P < .5）。治疗后下唇明显恢复，上唇明显突出（P < .5）.
结论：
使用微螺旋锚定的倒置FRD可以有效地促进上颌骨向前生长，但不能阻止上颌骨牙列的近中移动。观察到明显的下切牙后倾。面部轮廓的显著美学改善主要是由于下唇修复和上唇突出。
OBJECTIVES:
To evaluate the skeletal, dental, and soft tissue changes after the use of miniscrew-anchored inverted Forsus fatigue-resistant device (FRD) in treatment of Class III malocclusion.
MATERIALS AND METHODS:
In this controlled clinical trial, 16 patients (9 girls and 7 boys; age 12.45 ± 0.87 years) were consecutively treated with miniscrew-anchored inverted Forsus FRD. This group was compared with a matched control group of 16 untreated patients (8 girls and 8 boys; age 11.95 ± 1.04 years). Miniscrews were inserted bilaterally between the maxillary canine and first premolar. Forsus FRD was selected and inserted in an inverted manner mesial to the mandibular headgear tube and distal to the maxillary canine bracket.
RESULTS:
Class I molar and canine relationships with positive overjet were achieved in an average period of 6.4 ± 1.46 months. Maxillary forward growth showed a statistically significant increase (SNA°: 1.73 ± 0.53, P < .5), maxillary incisor proclination was statistically significant (U1 to NA°: -0.39 ± 0.33, P > .5), and the lower incisors exhibited significant retroclination (L1 to NB°: 1.65 ± 0.83, P < .5). Significant lower lip retrusion and upper lip protrusion were obvious treatment outcomes ( P < .5).
CONCLUSIONS:
The use of miniscrew-anchored inverted FRD could effectively increase maxillary forward growth, but it did not prevent mesial movement of the maxillary dentition. Significant lower incisor retroclination was observed. Significant esthetic improvement of the facial profile was achieved primarily because of lower lip retrusion and upper lip protrusion.
DOI：
10.1016/j.ajodo.2009.10.037
发表时间：
2010-11
影响因子：
3
作者：
De Clerck, Hugo;Cevidanes, Lucia;Baccetti, Tiziano
通讯作者：
Baccetti, Tiziano