Functional problems in orthodontic patients out of retention.
Functional problems in orthodontic patients out of retention.
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正畸患者的功能问题出于固位。
DOI：
10.1093/ejo/3.3.173
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发表时间：
1981
影响因子：
2.6
通讯作者：
A. Hasund
中科院分区：
文献类型：
--
作者：
M. Janson;A. Hasund
口颌系统的功能问题已成为当今许多患者的痛苦经历。如果这些患者在儿童时期曾经接受过正畸治疗，这通常被认为是症状的原因，尽管这种说法通常仅基于“临床经验”。
对60例接受过安氏II类1分类错牙合治疗的患者进行了调查，平均保持时间为5年。其中30名患者未进行拔牙治疗，另30名患者在拔除4颗前磨牙后进行治疗。将口颌系统的功能和功能障碍状况与相同年龄的未治疗对照组进行比较。根据Helkimo（1974）的既往（AiO-AiII）和临床（DiO-DiIII）功能障碍指数对材料（平均年龄21岁）进行细分。
未拔牙组的记忆障碍和临床症状明显少于拔牙组和对照组（P<0.05）。然而，在临床上，与对照组相比，中度（DiII）和重度（DiIII）干扰类中的拔牙病例较少，但轻度（DiI）干扰较多。
Functional problems in the stomatognathic system have become a painful experience for many patients today. If these patients have previously undergone orthodontic treatment in childhood this is often claimed to be a cause of the symptoms, although this statement is frequently made only on the basis of ‘clinical experience’.
An investigation was undertaken on 60 patients who had had treatment for Angle's Class II, Division 1 malocclusion and were, on average, five years out of retention. Thirty of the patients had been treated without extraction and the other 30 after extraction of four premolars. The functional and dysfunctional conditions of the stomatognathic system were compared with an untreated control group of the same age. The material (mean age 21 years) was sub-divided according to the anamnestic (AiO-AiII) and clinical (DiO-DiIII) dysfunction indices of Helkimo (1974).
The cases treated without extractions showed significantly less anamnestic and clinical disturbances than both the extraction and the control group (P<0.05). Clinically, however, fewer extraction cases appeared in the class with moderate (DiII) and severe (DiIII) disturbances, but more with slight (DiI) disturbances compared to the control group.