Boronat López Araceli, Balaguer Martínez José, Lamas Pelayo Joana, Carrillo García Celia, Peñarrocha Diago Miguel
Valencia University Medical and Dental School, Spain.
Med Oral Patol Oral Cir Bucal. 2008 Apr 1;13(4):E244-7.
The objective of the present study was to measure the implant stability quotient (ISQ) values during the osseointegration period, and determine the factors that affect implant stability.
To measure implant stability, resonance frequency analysis (RFA) was performed in 24 patients (12 women, 12 men) with a total 64 Defcon implants (10 anterior maxilla, 12 posterior maxilla, 18 anterior mandible, 24 posterior mandible). Bone type was classified according to the Lekholm and Zarb index (52 type II bone, 12 type III). RFA was used for direct measurement of implant stability on the day of implant placement and consecutively once a week for 8 weeks and at week 10.
The mean ISQ of all measured implants was 62.6. The lowest mean stability measurement was at 4 weeks for all bone types (60.9). Gender was found to be significant (p<0.05); women showed higher implant stability than men. In relation to location within the dental arch, statistical analysis showed higher ISQ values for anterior implants than posterior fixtures (p<0.05).
本研究的目的是测量骨结合期种植体稳定性商数（ISQ）值，并确定影响种植体稳定性的因素。
为测量种植体稳定性，对24例患者（12名女性，12名男性）共64枚Defcon种植体（上颌前部10枚，上颌后部12枚，下颌前部18枚，下颌后部24枚）进行了共振频率分析（RFA）。根据Lekholm和Zarb指数对骨类型进行分类（II型骨52例，III型骨12例）。在种植体植入当天以及之后连续8周每周一次和第10周时，使用RFA直接测量种植体稳定性。
所有测量种植体的平均ISQ为62.6。所有骨类型的最低平均稳定性测量值在第4周（60.9）。发现性别具有显著性差异（p<0.05）；女性的种植体稳定性高于男性。关于牙弓内的位置，统计分析显示前部种植体的ISQ值高于后部种植体（p<0.05）。
