论文部分内容阅读
外伤所致的脱位牙常常发生牙髓坏死,但也不尽然。是否采用保存牙髓治疗关键在于把握外伤后短期内牙髓的状态。脱位牙的牙髓可能已完全失活,亦可能只是暂时的感觉丧失,而这两种情况凭电活力测试技术是不能鉴别的。因此,临床上对于脱位牙牙髓活力是否能恢复缺乏充分的观察研究。本研究采用激光多普勒测速计(LDF)和作为对照的牙髓电活力测量仪对4枚保髓成功的脱位牙分别进行了追踪测试,初步显示了LDF的优越性。所用LDF(Periflux PF2,Perimed KB,
Traumatic dislocation of the teeth often occur pulp necrosis, but not always. Whether to adopt the preservation of dental pulp treatment lies in the grasp of short-term after trauma pulp state. The dental pulp of a dislocated tooth may have completely deactivated, or it may be a temporary loss of sensation, both of which can not be identified by the electro-dynamic test technique. Therefore, the clinical dislocation of dental pulp vitality can recover from the lack of adequate observational studies. In this study, four laser dislocated teeth were tracked by laser Doppler velocimetry (LDF) and control pulp electrical activity meter. The preliminary results show the superiority of LDF. The LDF used (Periflux PF2, Perimed KB,