Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-42229
Stuebinger, S; Biermeier, K; Bächi, B; Ferguson, S J; Sader, R; von Rechenberg, B (2010). Comparison of Er:YAG laser, piezoelectric, and drill osteotomy for dental implant site preparation: a biomechanical and histological analysis in sheep. Lasers in Surgery and Medicine, 42(7):652-661.
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BACKGROUND AND OBJECTIVES: The aim of this study was to examine the influence of implant bed preparation, using either Er:YAG laser ablation, piezoelectric surgery or drill osteotomy, on osseointegration of titanium dental implants after 4, 6, and 8 weeks.
MATERIAL AND METHODS: A total of 108 implants (Camlog) were placed in the pelvis of 6 sheep (18 implants/sheep). Implant sites were prepared by an Er:YAG laser, a dental drill or a piezoelectric device. For each time period, six implants were used for biomechanical removal torque testing and six implants for a semi-quantitative histological assessment of the bone-to-implant contact (BIC).
RESULTS: An initially missing implant adjusted site preparation led to slightly higher BIC and torque values in the piezoelectric and laser groups due to a press-fit effect after 4 weeks. Statistical analysis of the average mean BIC after 4, 6, and 8 weeks revealed no significant differences (P > 0.05) between the different osteotomy techniques. Comparison of individual removal torque values showed the highest value for laser osteotomy after 8 weeks (1,698.50 +/- 67.52 Nmm), which was significantly higher than the corresponding value for drill osteotomy (P = 0.006).
CONCLUSION: Although BIC and removal torque values decreased in the laser and piezoelectric groups at 6 weeks during an active remodeling process, favorable and superior BIC as well as torque values could be demonstrated at 8 weeks. Thus laser and piezoelectric osteotomy seem to be at least comparable to drill osteotomy, concerning early osseointegration and implant stability.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||05 Vetsuisse Faculty > Center for Applied Biotechnology and Molecular Medicine
05 Vetsuisse Faculty > Veterinary Clinic > Equine Department
|DDC:||570 Life sciences; biology
|Deposited On:||19 Jan 2011 15:14|
|Last Modified:||28 Oct 2014 16:23|
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