This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Deporter, D.A. Articles by Valiquette, N. Search for Related Content PubMed PubMed Citation Articles by Deporter, D.A. Articles by Valiquette, N. Social Bookmarking                         What's this?

A Histological Comparison in the Dog of Porous-coated vs. Threaded Dental Implants

Medical Research Council Program in Dental Implantology, Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario, Canada M5G IG6

P.A. Watson

Medical Research Council Program in Dental Implantology, Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario, Canada M5G IG6

R.M. Pilliar

Medical Research Council Program in Dental Implantology, Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario, Canada M5G IG6

M.L. Chipmani

Department of Preventive Medicine and Biostatistics, Faculty of Medicine

N. Valiquette

Medical Research Council Program in Dental Implantology, Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario, Canada M5G IG6

The histological findings of an 18-month trial, in the dog, of a partially porous-coated endosseous dental implant made of Ti-6Al-4V, with a truncated conical shape, are described and compared with those for a cylindrical, threaded, endosseous implant made of commercially pure Ti. Six beagle dogs each received two porous-coated implants on one side of the mandible and two threaded implants on the contralateral side. Each set of two implants supported a two-unit fixed bridge for an 18-month functional period.

Methylmethacrylate sections of both the buccolingual and mesiodistal aspects of each implant were examined qualitatively and by computer-assisted morphometry. The morphometric measurements were used for determination of the length of implant surface in direct contact with bone on each aspect of each implant. The data were expressed both as an absolute length and as a fraction of the maximum length available for contact (contact length fraction or CLF). On the buccal and lingual aspects of the implants, both the absolute lengths and CLF were significantly smaller for the porous-coated design. For the mesial and distal aspects, the absolute lengths and CLF were less for the porous-coated design, but the differences were not significant. However, when the absolute contact length was related to the corresponding vertical bone height, significant differences were observed, the absolute contact length being greater for any given bone height for the porous-coated design. Taken together, the data suggest that shorter implants may be used with the porous-coated design.

Journal of Dental Research, Vol. 69, No. 5, 1138-1145 (1990)
DOI: 10.1177/00220345900690050401


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				M.A. Listgarten, D. Buser, S.G. Steinemann, K. Donath, N.P. Lang, and H.P. Weber Light and Transmission Electron Microscopy of the Intact Interfaces Between Non-submerged Titanium-coated Epoxy Resin Implants and Bone or Gingiva Journal of Dental Research, February 1, 1992; 71(2): 364 - 371. [Abstract] [PDF]

				R.M. Pilliar, D.A. Deporter, P.A. Watson, M. Pharoah, M. Chipman, N. Valiquette, S. Carter, and K. De Groot The Effect of Partial Coating with Hydroxyapatite on Bone Remodeling in Relation to Porous-coated Titanium-alloy Dental Implants in the Dog Journal of Dental Research, October 1, 1991; 70(10): 1338 - 1345. [Abstract] [PDF]