Oikarinen K S, Nieminen T M
Department of Oral and Maxillofacial Surgery, University of Oulu, Finland.
Acta Odontol Scand. 1994 Aug;52(4):203-8. doi: 10.3109/00016359409029047.
Altogether 17 patients treated with arch bar splints fixed onto teeth were tested at the time of splint removal and approximately 5 months later. Patients were treated with intermaxillary fixation (IMF) because of either orthognathic surgery (7 patients) or mandibular fractures (10). The CPITN index was used for estimating the periodontal status, and tooth mobility was measured with Periotest. Seven patients in the orthognathic surgery group could also be examined before splinting. Periodontal status, as shown with relative proportions of various CPITN indexes, worsened due to splinting but regained its original level at control examination a minimum of 5 months after splint removal. Since the mean Periotest values did not differ between the first and control examinations in the seven patients undergoing orthognathic surgery, the analysis of the effect of splinting on tooth mobility was performed from the values obtained immediately after splint removal and at control visit. Splinting was shown to increase Periotest values more in female patients, in younger ones, and in those who were splinted for a shorter period. Teeth with the smallest roots showed greater differences in Periotest values than those with large roots, and the greatest differences in mobility were observed in incisors.
共有17名接受牙弓夹板固定治疗的患者在拆除夹板时以及大约5个月后接受了测试。这些患者因正颌手术（7例）或下颌骨骨折（10例）接受了颌间固定（IMF）治疗。使用社区牙周指数（CPITN）评估牙周状况，并用牙周测试仪测量牙齿松动度。正颌手术组的7名患者在夹板固定前也可进行检查。从各种CPITN指数的相对比例来看，牙周状况因夹板固定而恶化，但在拆除夹板至少5个月后的对照检查中恢复到了原来的水平。由于接受正颌手术的7名患者首次检查和对照检查时的牙周测试仪平均值没有差异，因此根据拆除夹板后立即获得的值以及对照访视时获得的值对夹板固定对牙齿松动度的影响进行了分析。结果显示，夹板固定对女性患者、年轻患者以及夹板固定时间较短的患者的牙周测试仪值增加得更多。牙根最小的牙齿在牙周测试仪值上的差异比牙根大的牙齿更大，并且在切牙中观察到的松动度差异最大。
