植入扭矩对牙种植体初期稳定性影响的动物实验研究

发布时间：2018-09-03 13:55

【摘要】：目的:探讨植入扭矩值对种植体初期稳定性的影响,并探索达到种植体初期稳定性值的最佳植入扭矩范围。方法:选取六条纯种比格犬,拔除双侧下颌前磨牙和第一磨牙。拔牙术后3个月,于双侧下颌一共植入48枚XIVE种植体。根据种植体的最大植入扭矩值(ITV)将种植体分为4组:A组12枚,0ITV20N cm;B组12枚,20≤ITV40 Ncm;C组12枚,40 Ncm≤ITV60 Ncm;D组12枚,ITV≥60Ncm。种植体植入后立即测量该种植体的稳定性值(ISQ)。结果:A组与B组、C组、D组之间ISQ值有统计学差异(P0.05);B组、C组、D组之间ISQ值无统计学差异(P0.05)。结论:根据本研究,只要植入扭矩值达到20Ncm以上,种植体都能取得良好的初期稳定性。植入扭矩值不能全面反映影响种植体初期稳定性,应联合种植体稳定性系数(ISQ值)才能更全面地评估种植体的初期稳定性。
[Abstract]:Aim: to investigate the effect of implant torque on the initial stability of implants, and to explore the optimal range of implant torque to reach the initial stability of implants. Methods: six purebred Beagle dogs were selected and bilateral mandibular premolars and first molars were extracted. Three months after tooth extraction, 48 XIVE implants were implanted in bilateral mandibles. According to the maximum implant torque value (ITV), the implants were divided into 4 groups: group A (n = 12), cm;B group (n = 12, n = 20 鈮，

本文编号：2220165