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KMID : 1025720130320010011
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Journal of Dental Implant Research
2013 Volume.32 No. 1 p.11 ~ p.18
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Effect of thread design, trabecular density, and cortical thickness on the primary stability of implant
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Hyun Ki
Kim Min-Suk
Kim Young-Kak
Hwang Suk-Hyun
Kim Jae-Man
Zhou Cong
Choi Yeon-Jo
Jun Sang-Ho
Ryu Jae-Jun
Kwon Jong-Jin
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Abstract
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Purpose: The purpose of study was to analyze the influence on the implant design, density of cancellous bone and thickness of cortical bone to the implant primary stability.
Materials and Methods: A total of 144 implants (4.0×10 mm) were installed in 24 artificial bones. Implants were divided into 3 groups. Artificial bones were divided into 4 groups.
Results: There was statistical significance among ITV, ISQ, PTV (p＜0.05). Element that effects to primary stability, D3 bone has been above D4 bone. Primary stability has been influenced according to existence of cortical bone and has shown a great level as cortical bone is 2 mm. The B implant has shown the highest primary stability level among the three types of Implants: macro thread ＞ double micro, macro and micro thread ＞ macro and micro thread. The degrees of the factors affecting primary stability: implant fixture＞ cortical bone＞cancellous bone type.
Conclusions: There has been a close correlation among the results of three stability measuring devices (ITV, ISQ, PTV). The fixture types of Implant have been the biggest influences to primary stability among all the factors.
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KEYWORD
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Primary stability, Artificial bones, Thread design, Trabecular density, Cortical thickness
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