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KMID : 0363020060360020319
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Journal of Korean Academy of Periodontology
2006 Volume.36 No. 2 p.319 ~ p.334
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Microstructural Change of Porous Surface Implant conditioned with Tetracycline-hydrochloride
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정재욱
허익/권영혁/박준봉/정종혁
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Abstract
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Mechanical and chemical methods are the two ways to treat the implant surfaces. By using mechanical method, it is difficult to eliminate bacteria and by-products from the rough implant surface
and it can also cause the structural change to the implant surface. Therefore, chemical method is
widely used in order to preserve and detoxicate the implant surface more effectively.
The purpose of this study is to evaluate the effect of tetracylcline-hydrochloride(TC-HCl) on the
change of implant surface microstructure according to application time. Implants with pure titanium
machined surface, SLA surface and porous surface were used in this study. Implant surface was rubbed with sponge soaked in 50mg/ml TC-HCl solution for ½ min., 1 min., 1½ min., 2 min., and
2½min. respectively in the test group and with no treatment in the control group. Then, specimens
were processed for scanning electron microscopic observation.
1. Both test and control group showed a few shallow grooves and ridges in pure titanium machined
surface implants. There were not significant differences between two groups.
2. In the SLA surfaces, the control specimen showed that the macro roughness was achieved by
large-grit sandblasting. Subsequently, the acid-etching process created the micro roughness,
which thus was superimposed on the macro roughness. Irrespective of the application time of
50mg/ml TC-HCl solution, in general, test specimens were similar to control.
3. In the porous surfaces, the control specimen showed spherical particles of titanium alloy and
its surface have a few shallow ridges. The roughness of surfaces conditioned with tetracycline-HCl was lessened and seen crater-like irregular surfaces relative to the application time.
In conclusion, pure titanium machined surfaces and SLA surfaces weren't changed irrespective of
the application time of tetracycline-HCl solution. But the porous surfaces conditioned with tetracycline-HCl solution began to be slightly changed from 2 min. This results are expected to be applied
to the regenerative procedures for peri-implantitis treatment.2)
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KEYWORD
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Tetracycline-HCl, Implant surface, SLA surface, Porous surface
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