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Changes of alveolar bone dehiscence and fenestration after augmented corticotomy-assisted orthodontic treatment: a CBCT evaluation.
Progress in Orthodontics ( IF 4.8 ) Pub Date : 2019-02-19 , DOI: 10.1186/s40510-019-0259-z Liangyan Sun 1 , Lingjun Yuan 2 , Bo Wang 3 , Lina Zhang 4 , Guofang Shen 3 , Bing Fang 2
Progress in Orthodontics ( IF 4.8 ) Pub Date : 2019-02-19 , DOI: 10.1186/s40510-019-0259-z Liangyan Sun 1 , Lingjun Yuan 2 , Bo Wang 3 , Lina Zhang 4 , Guofang Shen 3 , Bing Fang 2
Affiliation
BACKGROUND
To evaluate the changes of alveolar dehiscence and fenestration after augmented corticotomy-assisted orthodontic treatment on cone-beam computed tomography (CBCT) compared with traditional pre-surgical orthodontics, both quantitatively and qualitatively.
METHODS
Two hundred and four anterior teeth from 17 skeletal class III malocclusions were divided into four groups. Groups G1 (upper teeth) and G3 (lower teeth), comprising 120 teeth, accepted traditional pre-surgical orthodontics; groups G2 (upper teeth) and G4(lower teeth), comprising 84 teeth, accepted augmented corticotomy-assisted pre-surgical orthodontics. The changes of alveolar bone dehiscence and fenestration of each tooth in all groups were evaluated with the help of CBCT.
RESULTS
Quantitative analysis for comparing both groups: For the upper teeth, d1 - d0 was different between both groups while f1 - f0 was not statistically different. For the lower teeth, d1 - d0 was statistically different between both groups while f1 - f0 was not statistically different. Qualitative analysis: For the teeth that had no dehiscence before treatment, G2 and G4 had a better transition than did G1 and G3. For those having dehiscence before treatment, G4 had a better transition than did G3. For teeth having no fenestration before treatment, there was no statistically significant difference in transition between the control and treatment groups. For those having fenestration before treatment, G4 had a better transition than did G3.
CONCLUSIONS
For skeletal class III patients, augmented corticotomy-assisted orthodontic treatment is a promising method of improving alveolar bone dehiscence and fenestration for lower anterior teeth, and it also has the potential to protect both lower and upper anterior teeth against dehiscence.
中文翻译:
骨皮质切开辅助正畸治疗后牙槽骨开裂和开窗的变化:CBCT评价。
背景技术为了评估与传统的术前正畸相比,在锥形束计算机断层扫描(CBCT)上进行皮质切开术辅助正畸治疗后牙槽裂和开窗的变化。方法将17个骨骼Ⅲ类错牙合畸形的204颗前牙分为四组。G1组(上牙)和G3组(下牙)包括120颗牙齿,已接受传统的手术前牙齿矫正。G2组(上牙)和G4组(下牙),共84颗牙,接受了增强的皮质切开术辅助的外科正畸。在CBCT的帮助下,评估所有组中每个牙齿的牙槽骨开裂和开窗的变化。结果用于比较两组的定量分析:对于上牙,两组之间的d1-d0不同,而f1-f0在统计学上没有差异。对于下颌牙齿,两组之间的d1-d0在统计学上不同,而f1-f0在统计学上没有差异。定性分析:对于治疗前没有开裂的牙齿,G2和G4的过渡要好于G1和G3。对于治疗前开裂的患者,G4的过渡要好于G3。对于治疗前没有开窗的牙齿,对照组和治疗组之间的过渡期差异无统计学意义。对于那些在治疗前开窗的人,G4的过渡要好于G3。结论对于骨骼III类患者,
更新日期:2019-11-01
中文翻译:
骨皮质切开辅助正畸治疗后牙槽骨开裂和开窗的变化:CBCT评价。
背景技术为了评估与传统的术前正畸相比,在锥形束计算机断层扫描(CBCT)上进行皮质切开术辅助正畸治疗后牙槽裂和开窗的变化。方法将17个骨骼Ⅲ类错牙合畸形的204颗前牙分为四组。G1组(上牙)和G3组(下牙)包括120颗牙齿,已接受传统的手术前牙齿矫正。G2组(上牙)和G4组(下牙),共84颗牙,接受了增强的皮质切开术辅助的外科正畸。在CBCT的帮助下,评估所有组中每个牙齿的牙槽骨开裂和开窗的变化。结果用于比较两组的定量分析:对于上牙,两组之间的d1-d0不同,而f1-f0在统计学上没有差异。对于下颌牙齿,两组之间的d1-d0在统计学上不同,而f1-f0在统计学上没有差异。定性分析:对于治疗前没有开裂的牙齿,G2和G4的过渡要好于G1和G3。对于治疗前开裂的患者,G4的过渡要好于G3。对于治疗前没有开窗的牙齿,对照组和治疗组之间的过渡期差异无统计学意义。对于那些在治疗前开窗的人,G4的过渡要好于G3。结论对于骨骼III类患者,