The effect of osteotomy dimension on osseointegration to resorbable media-treated implants : a study in the sheep

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The effect of osteotomy dimension on osseointegration to resorbable media-treated implants : a study in the sheep

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Publication Article, peer reviewed scientific
Title The effect of osteotomy dimension on osseointegration to resorbable media-treated implants : a study in the sheep
Author(s) Galli, Silvia ; Jimbo, Ryo ; Tovar, Nick ; Yoo, Daniel ; Anchieta, Rodolfo ; Yamaguchi, Satoshi ; Coelho, Paulo G
Date 2015
English abstract
The drilling technique and the surface characteristics are known to influence the healing times of oral implants. The influence of osteotomy dimension on osseointegration of microroughned implant surfaces treated with resorbable blasting media was tested in an in vivo model. Ninety-six implants (ø4.5 mm, 8 mm in length) with resorbable blasting media-treated surfaces were placed in the ileum of six sheep. The final osteotomy diameters were 4.6mm (reamer), 4.1mm (loose), 3.7mm (medium), and 3.2mm (tight). After three and six weeks healing, the implants were biomechanically tested and histologically evaluated. Statistical analysis was performed using Page L trend test for ordered and paired sample and linear regression, with significance level at p < 0.05. An overall increase in all dependent variables was observed with the reduction of osteotomy diameter. In addition, all osseointegration scores increased over time. At three weeks, the retention was significantly higher for smaller osteo- tomies. The histological sections depicted intimate contact of bone with all the implant surfaces and osteoblast lines were visible in all sections. The resorbable blasting media microroughed surfaces achieved successful osseointegration for all the instrumentation procedures tested, with higher osseointegration scores for the high insertion torque group.
DOI http://dx.doi.org/10.1177/0885328214553958 (link to publisher's fulltext)
Publisher Sage
Host/Issue Journal of Biomaterials Applications;8
Volume 29
ISSN 0885-3282
Pages 1068-1074
Language eng (iso)
Subject(s) Implant surface
histology
osseointegration
removal torque
resorbable surface – blasted surface
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/18067 (link to this page)

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