摘要
目的探讨一种改良的运动护齿器(MG)制作技术,使存在前牙开或深覆盖的患者在戴入MG后达到全颌接触的平衡状态;并对这种全颌接触式MG的临床使用效果进行随访观察。方法依据纳入标准选择大学生篮球运动员60名,随机分为使用组和对照组,采用分区分层热压成型法为使用组球员制作全颌接触式MG。要求使用组球员每次进行篮球运动时均佩戴全颌接触式MG,记录全体球员在18个月观察期内参与篮球活动的次数,并记录进行篮球运动时发生牙松动、折裂、脱落、软组织损伤、颌骨损伤或脱位等口腔颌面部运动创伤的次数,收集使用者对全颌接触式MG的使用评价,比较使用组与对照组各种创伤的发生率。结果应用分区分层热压成型法成功制作了30例全颌接触式MG。多数使用者认为其具有较好的佩戴舒适性,观察期内使用组各种口颌运动创伤总发生率为6‰,而对照组为24‰,两者差异有统计学意义。结论采用分区分层热压成型法可快捷有效地制备全颌接触式MG;使用全颌接触式MG可使口腔颌面部运动创伤的发生率显著降低。
Objective The purpose of this study was to describe a fabricating method of custommade mouthguards （MG）, by wearing which patients with open bite or deep overjet in anterior teeth or malocclusion can achieve a full-balanced occlusion, and to evaluate the protecting effectiveness of this new kind of MG with full-balanced occlusion. Methods Under the inclusion criteria, sixty basketball players from universities were recruited and were divided into too group randomly. One group were given MGs with full-balanced occlusion, which were fabricated from EVA membranes using the method of laminated thermoforming, while the other group served as control. All the players were required to record the times of participating basketball games and every single injuries from that, including loosened or fractured teeth, avulsed teeth, rupture of soft tissues, injuries or dislocation of jaws. And the comments from the users were also collected. Data of injuries were analyzed and the results of experimental group and control group were compared by Χ^2 test. Results 30 MGs with full balanced occlusion were made and delivered to the players. Most of users thought the MG was comfortable to wear. And the injuries data analysis showed the experimental group had only 6‰ incidence of maxillofacial injuries, which was statistically lower than that of the control group （24‰）. Conclusion The MG with full balanced occlusion could be fabricated efficiently using the method of laminated thermoforming. And this new kind of MG provided effective protect for users with open bite in anterior teeth or malocclusion against maxillofacial injury when playing basketball.
出处
《中华口腔医学研究杂志（电子版）》
CAS
2009年第5期35-39,共5页
Chinese Journal of Stomatological Research(Electronic Edition)
