固定带环的第二磨牙在正畸治疗中成年患者牙周变化的危险因素。
Risk factors for periodontal changes in adult patients with banded second molars during orthodontic treatment.
出版信息
Angle Orthod. 2012 Mar;82(2):224-8. doi: 10.2319/030911-172.1. Epub 2011 Sep 7.
OBJECTIVE
To identify the risk factors for periodontal changes in adult patients during orthodontic treatment by evaluating the periodontal status of banded second molars using the gingival index (GI).
MATERIAL AND METHODS
The sample consisted of 100 adult patients divided into two groups: the Orthodontics group, undergoing corrective treatment with fixed appliances and bands cemented to the four second molars, and the Control group, with no prior history of orthodontic treatment, age and sex matched. Group GI values were compared using the Wilcoxon test. Additionally, a multivariate logistic regression was performed to study the risk factors for increases in the GI.
RESULTS
Individuals in the Orthodontics group showed a significantly higher GI than those in the Control group. Logistic regression revealed that among the risk factors found to increase GI, the following proved significant (in order of importance): plaque index, subgingival encroachment of the cervical margins of bands, probing depth, and length of orthodontic treatment.
CONCLUSIONS
Banded second molars of adult patients during orthodontic treatment showed more clinical signs of gingival inflammation than those of untreated individuals. Moreover, major risk factors identified included the presence of plaque and the presence of subgingival band margins.
目的
通过评估带环第二磨牙的牙龈指数（GI），确定正畸治疗过程中成年患者牙周变化的危险因素。
材料和方法
本研究纳入了 100 名成年患者，分为正畸组和对照组。正畸组接受固定矫治器和带环固定于四颗第二磨牙的矫正治疗，对照组无正畸治疗史，年龄和性别匹配。使用 Wilcoxon 检验比较两组的 GI 值。此外，还进行了多变量逻辑回归分析，以研究 GI 增加的危险因素。
结果
正畸组的个体 GI 值明显高于对照组。逻辑回归分析显示，在发现的增加 GI 的危险因素中，以下因素具有显著意义（按重要性顺序排列）：菌斑指数、带环颈缘龈下侵犯、探诊深度和正畸治疗时间。
结论
正畸治疗中的成年患者带环第二磨牙比未治疗个体有更多的牙龈炎症临床迹象。此外，确定的主要危险因素包括菌斑的存在和带环龈下边缘的存在。
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