Kafle Dashrath, Mishra Rajeev Kumar, Hasan Md Riasat, Saito Takashi
Department of Orthodontics, Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Dhulikhel 45200, Nepal.
Division of Clinical Cariology and Endodontology, Department of Oral Rehabilitation, School of Dentistry,Health Sciences, University of Hokkaido, Hokkaido 061-0293, Japan.
Int J Dent. 2020 Dec 15;2020:8810964. doi: 10.1155/2020/8810964. eCollection 2020.
Bonding failure is a problem in orthodontic therapy and has been associated with orthodontic emergencies and delayed treatment time. The aim of this study is to determine the bracket failure rate among patients undergoing orthodontic therapy.
From the archives of posttreatment records, 200 total cases were selected, out of which 122 cases had detailed treatment records. Cases with incomplete records, large restorations, or enamel aberrations were excluded from the study. Descriptive statistics were applied to obtain sample characteristics, and a chi-square test was applied to compare the bracket failure between different categories.
Out of the 122 samples enrolled in the study, female and male patients comprised 71% and 29%, respectively. Class I malocclusions were the most common problem (56%), followed by Class II (41%) and Class III (3%). The bracket failure rate was 3.43%, and 32% of the patients had an incidence of bracket failure. There was no significant difference in bracket failure among genders (=0.344), malocclusion types (=0.191), or operators (=0.188). The maxillary left quadrant was the most common site of bracket failure, followed by the mandibular right quadrant.
Bracket failure is relatively uncommon. It is not affected by the gender or age of the patient or by malocclusion type. The maxillary left and mandibular right quadrants are the most common sites of bracket failure.
粘结失败是正畸治疗中的一个问题,与正畸急症和治疗时间延长有关。本研究的目的是确定接受正畸治疗患者的托槽失败率。
从治疗后记录档案中选取200例病例,其中122例有详细的治疗记录。记录不完整、有大面积修复体或釉质异常的病例被排除在研究之外。应用描述性统计来获取样本特征,并应用卡方检验来比较不同类别之间的托槽失败情况。
在纳入研究的122个样本中,女性和男性患者分别占71%和29%。安氏I类错 是最常见的问题(56%),其次是安氏II类(41%)和安氏III类(3%)。托槽失败率为3.43%,32%的患者有托槽失败的情况。性别(P = 0.344)、错 类型(P = 0.191)或操作人员(P = 0.188)之间的托槽失败无显著差异。上颌左象限是托槽失败最常见的部位,其次是下颌右象限。
托槽失败相对不常见。它不受患者性别或年龄以及错 类型的影响。上颌左象限和下颌右象限是托槽失败最常见的部位。