Outcome assessment of lingual and labial appliances compared with cephalometric analysis, peer assessment rating, and objective grading system in Angle Class II extraction cases
Outcome assessment of lingual and labial appliances compared with cephalometric analysis, peer assessment rating, and objective grading system in Angle Class II extraction cases
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DOI：
10.2319/031014-173.1
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发表时间：
2015-05-01
影响因子：
3.4
通讯作者：
Takano-Yamamoto, Teruko
中科院分区：
文献类型：
--
作者：
Deguchi, Toru;Terao, Fumie;Takano-Yamamoto, Teruko
目的：为了验证我们的假设，将有显着差异的治疗结果，包括头影测量值，根吸收程度，咬合指数，和功能方面，与唇和舌aperts.Materials和方法：24个连续治疗的第二类病例与提取和舌的装置进行了比较，25匹配的情况下，与提取和唇的装置。正畸治疗的结果进行了评价，头影测量分析，同行评估评级，和客观分级系统（OGS）。此外，还对两组患者在正畸治疗后进行功能分析。统计学比较采用Wilcoxon符号秩检验组内，和Mann-Whitney U-检验被用来比较唇和舌groups.Results：组间唯一显着差异是，在舌组的切间角大于唇组。OGS评估显示，舌侧组对牙根成角的控制明显差于唇侧组。两组之间没有显着差异的根吸收量或在功能evaluation.Conclusions：一般来说，舌侧器具提供可比的治疗结果与唇侧器具。然而，使用舌侧矫治器时要小心，因为它们更容易产生切牙直立和牙根成角。
Objective: To validate our hypothesis that there would be significant differences in treatment outcomes, including cephalometric values, degree of root resorption, occlusal indices, and functional aspect, between cases treated with labial and lingual appliances.Materials and Methods: Twenty-four consecutively treated Class II cases with extractions and lingual appliance were compared with 25 matched cases treated with extraction and labial appliance. Orthodontic treatment outcomes were evaluated by cephalometric analysis, peer assessment rating, and an objective grading system (OGS). Additionally, functional analysis was also performed in both groups after orthodontic treatment. Statistical comparison was performed using the Wilcoxon signed rank test within the groups, and the Mann-Whitney U-test was used to compare between the labial and lingual groups.Results: The only significant difference between the groups was that the interincisal angle was larger in the lingual group than in the labial group. OGS evaluation showed that control over root angulation was significantly worse in the lingual group than in the labial group. There was no significant difference between groups in the amount of root resorption or in functional evaluation.Conclusions: Generally, lingual appliances offer comparable treatment results to those obtained with labial appliances. However, care should be taken with lingual appliances because they are more prone to produce uprighted incisors and root angulation.