Syed Irfon, Joshi Abhijit, Desai Anil Kumar, Anehosur Venkatesh
SDM Craniofacial Surgery and Research Centre, SDM College of Dental Sciences and Hospital, Dharwad, India.
J Craniofac Surg. 2020 Jul-Aug;31(5):e451-e459. doi: 10.1097/SCS.0000000000006449.
The aim of the study is to assess the occlusion in mandibular condyle fractures using T-Scan and analyze the data obtained. Twenty patients underwent non-surgical management for condylar fractures were treated with Erich arch bar and guiding elastics, and periodically subjected to T-Scan III evaluations. The data obtained was analyzed with the clinical evaluation conducted. There were 18 males and 2 females. Mean age of the patients was 25.4 ± 7.4 years. There were statistically no significant changes in Centre of Force values, in Bite Force at First Contact (P < 0.05) during the study period. There were significant differences in Maximum Bite Force between preoperative and postoperative values, preoperative and sixth-month values, postoperative and first-month values, first-month and sixth-month values. There were significant (P < 0.05) differences in Bite Force at Maximum Intercuspation between preoperative and third month, preoperative and sixth-month values, postoperative and sixth-month values, first-month and consequent follow-ups. Subjective evaluation of occlusion revealed significant differences (P < 0.05) between preoperative and 1-month, preoperative and postoperative, postoperative and 1-month values. All patients improved by the end of 6 months with regards to their mouth opening. The center of force does not alter significantly in post trauma period. Mouth opening improves significantly at the end of 6-month period post-operative. Improvement in maximum bite force and maximum intercuspation take place simultaneously. Mouth opening improved significantly. Subjective evaluation of occlusion does not change significantly after the third month evaluation. Longer follow-ups would help us in understanding when or if the bite forces equilibrate after a condylar trauma.
本研究的目的是使用T-Scan评估下颌髁突骨折的咬合情况,并分析所获得的数据。20例接受髁突骨折非手术治疗的患者采用埃里希牙弓夹板和引导弹力牵引进行治疗,并定期接受T-Scan III评估。将所获得的数据与进行的临床评估结果进行分析。患者中有18名男性和2名女性。患者的平均年龄为25.4±7.4岁。在研究期间,力中心值、首次接触咬合力方面无统计学显著变化(P<0.05)。术前与术后值、术前与术后6个月值、术后与术后1个月值、术后1个月与术后6个月值之间的最大咬合力存在显著差异。术前与术后3个月、术前与术后6个月值、术后与术后6个月值、术后1个月与后续随访之间的最大牙尖交错位咬合力存在显著(P<0.05)差异。咬合的主观评估显示术前与术后1个月、术前与术后、术后与术后1个月值之间存在显著差异(P<0.05)。所有患者在6个月末张口情况均有改善。创伤后力中心无显著改变。术后6个月末张口情况显著改善。最大咬合力和最大牙尖交错位同时改善。张口情况显著改善。术后3个月评估后咬合的主观评估无显著变化。更长时间的随访将有助于我们了解髁突创伤后咬合力何时或是否达到平衡。