摘要
目的:测量钛种植体植入扭矩(ITV)和稳定系数(ISQ),分析不同螺距和外形对种植体初期稳定性的影响。方法:将螺距分别为0.8mm、1.2mm、1.6mm的柱状和两种锥形的机械表面钛种植体各12个植入新鲜的猪椎骨中,测量植入时扭矩和植入后种植体的稳定系数。结果:0.8mm螺距种植体的植入扭矩(40.66±2.46)大于1.2mm(38.33±2.60)和1.6mm(38.05±2.83)者(p<0.05),其稳定系数(74.38±3.61)也大于1.2mm(71.91±4.33)和1.6mm(71.44±3.78)者(P<0.05);柱状、TaperI型和TaperII型种植体的植入扭矩(分别为38.90±2.88、38.95±2.68和39.20±3.08)未见明显差异(p>0.05),柱状种植体的稳定系数(73.91±4.70)大于两种锥形种植体(71.90±3.90和71.91±3.33),(p<0.05);种植体的螺距和外形对其初期稳定性的影响无交互作用。结论:0.8mm螺距种植体的初期稳定性优于1.2mm和1.6mm者,柱状种植体的初期稳定性优于锥形种植体。
Objective： To analyze the influence of different types and pitches on implant initial stability by measuring insertion torque and implant stability quotient of titanium implant, Method： Insert three types （one cylinder and two kinds of taper-shape） of mechanical surface titanium implants with different pitches （0.8 mm. 1.2 mm and 1.6 mm） into fresh pork vertebrae,then measure their ITV and ISQ. Result：The 0.8 mm pitch implant had better initial stability than the 1.2 mm and 1.6 mm by both ITV （40.66±2.46,38.33±2.60 and 38.05±2.83）and ISQ （74.38±3.61,71.91±4.33 and 71.44±3.78） measurements （P〈0.05） ： There were no significant initial stability differences between the cylinder and the two kinds of taper implants by ITV （38.90±2.88,38.95±2.68 and 39.20±3.08）measurements （P〉0.05）,but the cylinder implants had better initial stability than the other two by ISQ （73.91 ±4.70,71.90±3.90 and 71.91 ±3.33）measurements （P〈0.05） ： There were no mutual effect between implant type and pitch. Conclusion： The 0.8 mm pitch implant had better initial stability than the 1.2 mm and 1.6 mm pitches, and the cylinder type implant had better initial stability than the taper types.
出处
《临床口腔医学杂志》
2008年第7期433-435,共3页
Journal of Clinical Stomatology
关键词
牙种植体
初期稳定性
植入扭矩
共振频率分析
种植体稳定系数
外形
螺距
implant initial stability：insertion torque value （ITV）
implant stability quotient （ISQ）：resonanee frequency analysis （RFA）
type
pitch.
