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KMID : 0363020050350040891
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Journal of Korean Academy of Periodontology
2005 Volume.35 No. 4 p.891 ~ p.905
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Micromorphometric change of implant surface conditioned with tetracycline-HCI: HA and oxidized surface
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안상호
박준봉/권영혁/허익/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- HCl on the change of
implant surface microstructure according to application time. Implants with pure titaniummachined surface, SLA surface and TiO2blasted surface were used in this study. Implant
surface was rubbed with sponge soaked in 50mg/ml tetracycline - 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. The sponge was soaked in every 30 seconds. Then, the specimens were
processed for scanning electron microscopic observation.
Based upon the analysis of photographs by three dentists who are not related with this
study, the results were obtained as follows;
1. In the pure titanium machined surfaces, the control specimen showed a more or less
rough machined surface composed of alternating positive and negative lines corresponding to grooves and ridges. After treatment, machining line was more pronounced
for the control specimens. but in general, test specimens were similar to control.
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 tetracycline - HCl solution, in general, test specimens were
similar to control.
3. In the TiO2blasted surfaces, the control specimen showed the rough surface with small
pits. The irregularity of the TiO2blasted surfaces with 50mg/ml tetracycline - HCl
solution was lessened and the flattened areas got wider after 1 minute.2)
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KEYWORD
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micromorphometric change, tetracycline-HCI, HA and oxidized surface
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