Comparison of the removal torque and a histomorphometric evaluation of the RBM treated implants with the RBM followed by laser treated implants: an experimental study in rabbits
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Background: In the osseointegration of dental implants, the implant surface properties have been reported to be some of the most important critical factors. The effect of implant’s surfaces created by resorbable blast media (RBM) followed by laser ablation on bone tissue reactions was examined using the removal torque test and histomorphometric analysis. Methods: Two types of dental implants, RBM-laser implants (experimental group) and RBM implants (control group) (CSM implant system, Daegu, Korea; L=6 mm, diameter=3.75 mm) were placed into the right and left distal femoral metaphysis of 17 adult rabbits. Six weeks after placement, removal torque was measured and histomorphometric analysis was performed. Results: The mean removal torque was 24.0±10.2 Ncm and 46.6±16.4 Ncm for the control and test specimens, respectively. The experimental RBM-laser implants had significantly higher removal torque values than the control RBM implants (p=0.013). The mean values of total and cortical bone to implant contact (BIC) were respectively 46.3±10.8% and 65.3±12.5% for the experimental group, and 41.9±18.5% and 57.6±10.6% for the control group. The experimental RBM-laser implants showed a higher degree of total and cortical BIC compared with RBM implants, but there was no statistical significance (p=0.482, 0.225). Conclusion: The removal torque and BIC of the test group were higher than those of the control group. In this study, the surface treatment created by RBM treatment followed by laser ablation appears to have a potential in improving bone tissue reactions of dental implants.
Abstract
Background: In the osseointegration of dental implants, the implant surface properties have been reported to be some of the most important critical factors. The effect of implant’s surfaces created by resorbable blast media (RBM) followed by laser ablation on bone tissue reactions was examined using the removal torque test and histomorphometric analysis. Methods: Two types of dental implants, RBM-laser implants (experimental group) and RBM implants (control group) (CSM implant system, Daegu, Korea; L=6 mm, diameter=3.75 mm) were placed into the right and left distal femoral metaphysis of 17 adult rabbits. Six weeks after placement, removal torque was measured and histomorphometric analysis was performed. Results: The mean removal torque was 24.0±10.2 Ncm and 46.6±16.4 Ncm for the control and test specimens, respectively. The experimental RBM-laser implants had significantly higher removal torque values than the control RBM implants (p=0.013). The mean values of total and cortical bone to implant contact (BIC) were respectively 46.3±10.8% and 65.3±12.5% for the experimental group, and 41.9±18.5% and 57.6±10.6% for the control group. The experimental RBM-laser implants showed a higher degree of total and cortical BIC compared with RBM implants, but there was no statistical significance (p=0.482, 0.225). Conclusion: The removal torque and BIC of the test group were higher than those of the control group. In this study, the surface treatment created by RBM treatment followed by laser ablation appears to have a potential in improving bone tissue reactions of dental implants.
참고문헌 (24)
- Levine RA, "Multicenter retrospective analysis of the ITI implant system used for single-tooth replacements: results of loading for 2 or more years", Int J Oral Maxillofac Implants, 14, pp.516~520 (1999)
- Park YJ, "Retrospective chart analysis on survival rate of fixtures installed at the tuberosity bone for cases with missing unilateral upper molars: a study of 7 cases", J Oral Maxillofac Surg, 68, pp.1338~1344 (2010)
- Lekholm U, "Osseointegrated implants in the treatment of partially edentulous jaws: a prospective 5-year multicenter study", Int J Oral Maxillofac Implants, 9, pp.627~635 (1994)
- Adell R, "Long-term follow-up study of osseointegrated implants in the treatment of totally edentulous jaws", Int J Oral Maxillofac Implants, 5, pp.347~359 (1990)
- Albrektsson T, "Osseointegrated titanium implants. Requirements for ensuring a long-lasting, direct bone-to-implant anchorage in man", Acta Orthop Scand, 52, pp.155~170 (1981)
- Wennerberg A, "Torque and histomorphometric evaluation of c.p. titanium screws blasted with 25- and 75-microns-sized particles of Al2O3", J Biomed Mater Res, 30, pp.251~260 (1996)
- Gonshor A, "A prospective, multicenter, 4-year study of the ACE Surgical resorbable blast media implant", J Oral Implantol, 29, pp.174~180 (2003)
- Piattelli M, "Bone response to machined and resorbable blast material titanium implants: an experimental study in rabbits", J Oral Implantol, 28, pp.2~8 (2002)
- 유임수, "Machined 임플란트와 RBM surface 임플란트의 비교 연구", Journal of Periodontal & Implant Science, 38(3), pp.467~474 (2008), 대한치주과학회
- Gaggl A, "Scanning electron microscopical analysis of laser-treated titanium implant surfaces--a comparative study", Biomaterials, 21, pp.1067~1073 (2000)
- Johansson C, "Integration of screw implants in the rabbit: a 1-year follow-up of removal torque of titanium implants", Int J Oral Maxillofac Implants, 2, pp.69~75 (1987)
- Cho SA, "The removal torque of titanium screw inserted in rabbit tibia treated by dual acid etching", Biomaterials, 24, pp.3611~3617 (2003)
- 김권식, "REMOVAL TORQUE OF BICORTICALLY STABILIZED RESORBABLE BLAST MEDIA PIN IMPLANTS IN RABBIT TIBIA", 대한치과보철학회지, 44(6), pp.722~733 (2006), 대한치과보철학회
- Han CH, "Quantitative and qualitative investigations of surface enlarged titanium and titanium alloy implants", Clin Oral Implants Res, 9, pp.1~10 (1998)
- Faeda RS, "Biological performance of chemical hydroxyapatite coating associated with implant surface modification by laser beam: biomechanical study in rabbit tibias", J Oral Maxillofac Surg, 67, pp.1706~1715 (2009)
- Wennerberg A, "A histomorphometric and removal torque study of screw-shaped titanium implants with three different surface topographies", Clin Oral Implants Res, 6, pp.24~30 (1995)
- Rønold HJ, "Analysing the optimal value for titanium implant roughness in bone attachment using a tensile test", Biomaterials, 24, pp.4559~4564 (2003)
- Rong M, "The early osseointegration of the laser-treated and acid-etched dental implants surface: an experimental study in rabbits", J Mater Sci Mater Med, 20, pp.1721~1728 (2009)
- Sul YT, "Optimum surface properties of oxidized implants for reinforcement of osseointegration: surface chemistry, oxide thickness, porosity, roughness, and crystal structure", Int J Oral Maxillofac Implants, 20, pp.0349~359 (2005)
- Albrektsson T, "Oral implant surfaces: part 1--review focusing on topographic and chemical properties of different surfaces and in vivo responses to them", Int J Prosthodont, 17, pp.536~543 (2004)
- Albrektsson T, "Oral implant surfaces: part 2--review focusing on clinical knowledge of different surfaces", Int J Prosthodont, 17, pp.544~564 (2004)
- Wennerberg A, "A histomorphometric evaluation of screw-shaped implants each prepared with two surface roughnesses", Clin Oral Implants Res, 9, pp.11~19 (1998)
- Jartoft P, "Kinoform guided laser microfabrication of titanium implant surfaces", pp.1997
- Guo Z, "Bone response to a pure titanium implant surface modified by laser etching and microarc oxidation", Int J Oral Maxillofac Implants, 25, pp.130~136 (2010)