摘要
目的观察第三磨牙(M3)拔除同期超声洁治和刮治对第二磨牙(M2)远中牙周指标的影响。方法采用自身对照的分口设计。选择要拔除下颌双侧近中倾斜阻生智牙的患者43人,随机分配其一侧为超声治疗侧,在拔牙前后对M2远中面进行超声洁治和刮治,另一侧则为对照侧,只对M2远中面在拔牙前后以0.9%生理盐水冲洗。记录拔牙前和拔牙后6个月M2远中的探诊深度、出血指数、菌斑指数,并测量拔牙前和拔牙后6个月X线片显示的M2近远中牙槽嵴顶到相应釉牙骨质界的距离。结果 M3拔除后6个月无论超声治疗侧还是对照侧,第二磨牙远中面的探诊深度、出血指数、菌斑指数都较拔牙前显著降低,有统计学差别(P<0.001)。6个月后超声治疗侧比对照侧在探诊深度减少量和骨高度增加方面更为显著,有统计学意义(P<0.05)。结论拔除下颌第三磨牙前后同期洁治和刮治更有利于第二磨牙远中牙周组织的恢复。
Objective To investigate the effect of lower third molar extraction with simultaneous scaling on periodontal tissue of the lower second molar. Methods Forty-three patients who underwent extraction of bilateral mandibular mesioangular impacted third molars were included in this study. Digital X-ray was taken and the alveolar bone height measured on the distal side of the lower second molar before and 6 months after extraction of the third molar. In the test sides, ultrasonic scaling was performed before and after extraction, and in the control sides the socket was only rinsed with 0. 9% saline. Clinical parameters including plaque index（ PLI）, bleeding index（ BI）, periodontal pocket depth（PD） were recorded before and after extraction. Results PD, BI and PLI of the distal side of the lower second molar were significantly reduced （ P 〈0. 001 ）six months after extraction compared with those before the extraction. The reduction of PD and gain of bone height were more apparent in the test sides than in the control sides （P 〈 0. 05 ）. Conclusion The lower third molar extraction with simultaneous scaling was more beneficial to the recovery of the periodontal tissue.
出处
《北京口腔医学》
CAS
2013年第1期37-39,共3页
Beijing Journal of Stomatology
关键词
超声治疗
牙周组织
拔牙
近中阻生牙
Ultrasonic scaling
Periodontal tissue
Extraction
Impacted mandibular mesioangular third molar
