Stability Changes of Dental Implants According to the Simulated Peri-Implant Bone Defects


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Twenty implants of 3.75mm in diameter(Neoplant, Neobiotech, Korea) were used to evaluate the correlation between the resonance frequency analysis (RFA) and the radiographic method for periimplant bone change under in vitro conditions. To simulate peri-implant bone change, 2mm-deep 45° range horizontal defect and 2mm-deep 90° range horizontal defect area were serially prepared perpendicular to the X-ray beam after conventional implant insertion. ISQ values and gray values inside threads were measured before and after peri-implant bone defect preparation. ISQ value of resonance frequency analysis was changed according to peri-implant bone change and gray value of radiographic method was changed according to peri-implant bone change. In horizontal defect condition, relatively positive correlation were between ISQ and gray values(r=0.663).



Key Engineering Materials (Volumes 342-343)

Edited by:

Young-Ha Kim, Chong-Su Cho, Inn-Kyu Kang, Suk Young Kim and Oh Hyeong Kwon




C. J. Park et al., "Stability Changes of Dental Implants According to the Simulated Peri-Implant Bone Defects", Key Engineering Materials, Vols. 342-343, pp. 57-60, 2007

Online since:

July 2007




[1] N. Meredith: Assessment of implant stability as a prognostic determinant. Int J Prosthodont Vol. 11(1998), p.491.

[2] N. Meredith, D. Alleyne and P. Cawley: Quantitative determination of the stability of the implanttissue interface using resonance frequency analysis. Clin Oral Impl Res Vol. 7(1996), p.261.

[3] Y.J. Huh, I.S. Jeon, M.S. Huh, S.S. Lee, S.C. Choi, T.W. Park and J.D. Kim: A comparative study on the accuracy of digital subtraction radiography according to the aquisition methods of reconstructed images. Korean J Oral Maxillofac Radiol Vol. 32(2002).

[4] W.J. Han A comparison of subtracted images from dental subtraction programs. Korean J Oral Maxillofac Radiol Vol. 32(2002), p.147.

[5] B. Friberg, N. Sennerby, N. Meredith and U. Lekholm: A comparison between cutting torque and resonance frequency measurements of maxillary implants. A 20-month clinical study. Int J Oral Maxillofac Surg. Vol. 28(1999), p.297.


[6] H.G. White and M.J. Pharoah: Oral radiology: Principles and interpretation. (Mosby, USA 2000).

[7] L. Sennerby, A. Wennerberg and F. Pasop: A new microtomographic technique for non-invasive evaluation of the bone structure around implants. Clin Oral Impl Res Vol. 12(2001), p.91.