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BioMed Research International
Volume 2017, Article ID 8724951, 8 pages
Research Article

Bone Response to Two Dental Implants with Different Sandblasted/Acid-Etched Implant Surfaces: A Histological and Histomorphometrical Study in Rabbits

1Department of Medical, Oral and Biotechnological Sciences and CeSI-MeT, University of Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
2Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
3Division of Periodontics and Implantology, Oral Health Centre, Nedlands, WA, Australia

Correspondence should be addressed to Antonio Scarano; ti.hcinu@onaracsa

Received 26 August 2017; Revised 23 November 2017; Accepted 5 December 2017; Published 27 December 2017

Academic Editor: Hassan Maghaireh

Copyright © 2017 Antonio Scarano et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. Scientific evidence in the field of implant dentistry of the past 20 years established that titanium rough surfaces have shown improved osseointegration rates. In a majority of dental implants, the surface microroughness was obtained by grit blasting and/or acid etching. The aim of the study was to evaluate in vivo two different highly hydrophilic surfaces at different experimental times. Methods. Calcium-modified (CA) and SLActive surfaces were evaluated and a total of 18 implants for each type of surface were positioned into the rabbit articular femoral knee-joint in a split model experiment, and they were evaluated histologically and histomorphometrically at 15, 30, and 60 days of healing. Results. Bone-implant contact (BIC) at the two-implant surfaces was significantly different in favor of the CA surface at 15 days , while SLActive displayed not significantly higher values at 30 and 60 days . Conclusion. Both implant surfaces show an intimate interaction with newly formed bone.