比较将SmartForce功能和附件与传统固定器具相结合的Invisalign矫正器的治疗和后处理效果。
这项随机对照试验包括66名患者,32个对准器,和34名固定矫治器患者。矫正器和矫正器患者的平均年龄分别为26.7(四分位距[IQR]:9.8)和25.9(IQR:16.6)岁,分别。使用ABO差异指数评估治疗前闭塞。使用ABO客观评分系统(OGS)评分对治疗后(T1)和6个月保留(T2)闭塞进行量化。
矫正器组比矫正器组更早(0.4年)完成治疗(P<.001)。矫正器和支架组的DI评分中位数分别为4.5和7.0,具有统计学意义(P=.015),但在临床上微不足道,差异。总OGS评分或任何单独的成分评分在debond(T1)或保留6个月(T2)后没有统计学上显着的组间差异。在后处理期间,对准器组的对准和过度喷射明显恶化,颊舌倾向和咬合关系改善。在同一时期,矫正器组的对准恶化,颊舌倾斜改善。治疗后总OGS评分变化无统计学差异。
与传统的矫正器相比,单纯性咬合不正的患者需要长4.8个月的治疗时间,治疗和治疗后6个月的咬合结局相似.
To compare the treatment and posttreatment effects of Invisalign aligners that incorporated SmartForce features and attachments to traditional fixed appliances.
This randomized controlled trial included 66 patients, 32 aligners, and 34 fixed-appliance patients. The median ages of the aligner and braces patients were 26.7 (interquartile range [IQR]: 9.8) and 25.9 (IQR: 16.6) years, respectively. Pretreatment occlusion was assessed using the ABO Discrepancy Index. Posttreatment (T1) and 6-month retention (T2) occlusions were quantified using the ABO Objective Grading System (OGS) scores.
The braces group finished treatment significantly (P < .001) earlier (0.4 years) than the aligner group. The median DI scores for the aligner and braces groups were 4.5 and 7.0, respectively, which was a statistically significant (P = .015), but clinically insignificant, difference. There were no statistically significant between-group differences for the total OGS scores or any of the individual component scores at debond (T1) or after 6 months of retention (T2). During the posttreatment period, alignment and overjet worsened significantly in the aligner group, while buccolingual inclinations and occlusal relations improved. Over the same period, alignment worsened in the braces group and buccolingual inclinations improved. There was no statistically significant between-group difference in posttreatment changes of the total OGS scores.
While patients with simple malocclusions require 4.8 months longer treatment times with aligners than traditional braces, the treatment and 6-month posttreatment occlusal outcomes are similar.