Department of Dental Research, Federico Henriquez y Carvajal University, Santo Domingo 10106, Dominican Republic.
Department of Dentistry, Federico Henriquez y Carvajal University, Santo Domingo 10106, Dominican Republic.
Medicina (Kaunas). 2020 May 27;56(6):263. doi: 10.3390/medicina56060263.
: Implant stability in vivo is contingent on multiple factors, such as bone structure, instrument positioning and implant surface modifications, implant diameter, and implant length. Resonance-frequency analysis is considered a non-invasive, reliable, predictable, and objective method by which to evaluate implant stability, due to its correlation with bone-to-implant contact. The purpose of this study was to evaluate the effect of implant length on the primary and secondary stability of single-implant crown rehabilitations, as measured by resonance-frequency analysis at different times. : Implants of 10 and 11.5 mm were placed, and the resonance frequency was measured at the time of surgery (T0), as well as at 3 (T1), 6 (T2), and 12 (T3) months post-surgery. : A total of 559 implants were placed in 195 patients. Significant differences were observed when comparing the implant stability quotient (ISQ) values at T1, with values for 10-mm implants being greater than those for 11.5-mm implants ( = 0.035). These differences were also observed when comparing ISQ values for buccal and lingual areas. At T0, T2, and T3, no significant differences in ISQ values were observed. The use of 10-mm implants in the anterior maxilla yielded significantly greater values at T0 ( = 0.018) and T1 ( = 0.031) when compared with 11.5-mm implants. Significant differences in measurements were observed only for buccal areas ( = 0.005; = 0.018). When comparing the sample lengths and sex, women with 11.5-mm implants showed significantly lower results than those with 10-mm implants ( < 0.001). : There is a direct relationship between implants of a smaller length and greater ISQ values, with this relationship being most evident in the maxilla and in women.
种植体在体内的稳定性取决于多个因素，如骨结构、器械定位和种植体表面改性、种植体直径和种植体长度。由于共振频率分析与骨-种植体接触相关，因此被认为是一种非侵入性、可靠、可预测和客观的评估种植体稳定性的方法。本研究旨在评估种植体长度对单牙种植体冠修复的初级和次级稳定性的影响，方法是通过共振频率分析在不同时间测量。将 10 和 11.5 毫米的种植体植入，并在手术时（T0）、术后 3 个月（T1）、6 个月（T2）和 12 个月（T3）测量共振频率。共植入 195 名患者的 559 个种植体。在 T1 时，10 毫米种植体的种植体稳定性指数（ISQ）值与 11.5 毫米种植体的 ISQ 值相比，差异有统计学意义（ = 0.035）。在比较颊侧和舌侧的 ISQ 值时，也观察到了这种差异。在 T0、T2 和 T3 时，ISQ 值无显著差异。在前上颌使用 10 毫米种植体，在 T0（ = 0.018）和 T1（ = 0.031）时，与 11.5 毫米种植体相比，ISQ 值显著更高。仅在颊侧观察到测量值的显著差异（ = 0.005； = 0.018）。当比较样本长度和性别时，11.5 毫米种植体的女性与 10 毫米种植体的女性相比，结果显著更低（ < 0.001）。种植体较短的长度与较高的 ISQ 值之间存在直接关系，这种关系在上颌骨和女性中最为明显。
