Premium
Dog model for study of supracrestal bone apposition around partially inserted implants
Author(s) -
RoosJansåker AnnMarie,
FrankeStenport Victoria,
Renvert Stefan,
Albrektsson Tomas,
Claffey Noel
Publication year - 2002
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1034/j.1600-0501.2002.130502.x
Subject(s) - premolar , mandible (arthropod mouthpart) , coronal plane , dentistry , medicine , apposition , osseointegration , iliac crest , orthodontics , implant , anatomy , surgery , molar , botany , biology , genus
A dog model for study of supracrestal bone growth around partially inserted implants is described. The mandibular premolar teeth (P 1 , P 2 , P 3 and P 4 ) were extracted on both sides of the mandible in four dogs. At a surgical exposure 12 weeks later, two 10 mm titanium implants were partially inserted on each side, 15 mm apart, in the areas of the P 1 and the P 3 so that five threads protruded from the bone crest. A titanium mesh was fastened to the coronal aspect of the two fixtures and covered with an ePTFE membrane. Thus, a space for potential bone formation was created between the two implants. The surgical flaps were coronally positioned and secured with vertical mattress sutures. After 12 weeks of healing, biopsy specimens were retrieved and examined histologically. In three of the four dogs under study, the partially inserted implants had integrated and the intended large wound spaces had been created around the noninserted parts of the implants. However, bone was not formed around the protruding implants. Accordingly, this experimental model may prove useful for future studies on the use of various procedures that hypothetically may enhance bone formation.