扭矩类型和骨损失对两个带假肢的植入物稳定率的影响
João Paulo do Vale Souza1, Daniela Micheline Dos Santos1, Clóvis Lamartine de Moraes Melo Neto1
1Universidade Estadual Paulista (UNESP), Aracatuba Dental School, Department of Dental Materials and Prosthodontics, Aracatuba, SP, Brazil.
Journal of long-term effects of medical implants
|November 10, 2025
概括
牙植入物稳定性对于假肢成功至关重要,被评估为in vivo. 该研究发现,虽然植入物稳定性最初增加了,但随着时间的推移,它下降了,外部六边形和摩尔斯线连接之间的骨反应各不相同.
科学领域:
- 生物材料科学 生物材料科学
- 牙科植入物学 牙科植入物学
- 骨再生 骨再生
背景情况:
- 骨整合,即骨与植入物表面之间的直接结构和功能联系,对于植入物支持的假肢康复成功至关重要.
- 影响植入物稳定性的因素包括手术技术,插入扭矩,骨类型和植入物表面特征.
- 了解这些因素是优化植入物寿命和患者结果的关键.
研究的目的:
- 为了研究插入扭矩,接收者骨类型和围部植入骨损失对植入物稳定率 (ISQ) 值的体内影响.
- 为了比较圆柱形植入物的稳定性与外部六边形 (EH) 和摩尔氏线 (MT) 连接,采用了新的参考酸蚀刻 (RAE) 表面处理.
- 评估植入物稳定性和骨水平在植入后的不同时间点的变化.
主要方法:
- 总共有40个植入物被放置在没有牙的区域.
- 数据收集包括插入扭矩,共振频率分析 (RFA),数码周周放射和周植入物评估在植入物放置时 (t0),骨整合后 (t1) 和180天后康复后 (t2).
- 统计分析以5%的显著性水平进行.
主要成果:
- 植入物稳定系数 (ISQ) 值在t1时高,但在t2时显示出EH和MT连接的显著降低.
- 周植入物评估显示,EH连接的骨吸收和MT连接的骨增加.
- 尽管ISQ降低,但植入物稳定性和骨状况在180天内对所有连接都是临床上可接受的.
结论:
- 无论是EH和MT植入物连接都表现出临床上可接受的稳定性和骨状况,长达假肢安置后180天.
- 该研究强调了在观察期内EH和MT连接之间的骨反应差异 (再吸收与增益).
- 引用的酸蚀刻 (RAE) 表面处理需要进一步调查与植入物稳定性和骨整合有关.
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