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A new self-tapping Brånemark implant: clinical and radiographic evaluation.

Journal article
Authors Bertil Friberg
Kerstin Gröndahl
Ulf Lekholm
Published in The International journal of oral & maxillofacial implants
Volume 7
Issue 1
Pages 80-5
ISSN 0882-2786
Publication year 1992
Published at Institute of Odontology
Pages 80-5
Language en
Links www.ncbi.nlm.nih.gov/entrez/query.f...
Keywords Adult, Aged, Alveolar Bone Loss, etiology, radiography, Bone Density, Dental Implantation, Endosseous, instrumentation, methods, Dental Implants, adverse effects, Female, Humans, Male, Middle Aged, Prospective Studies, Random Allocation
Subject categories Surgical research

Abstract

A new self-tapping Brånemark implant designed for denser bone qualities was evaluated with regard to insertion technique, complications, marginal bone remodeling, and survival rate. Thirty patients, representing 21 mandibles and 9 maxillae, participated in the study. In each patient both standard and self-tapping implants were placed, and a total of 179 implants, 88 self-tapping and 91 standard, were inserted. Thirteen of 62 mandibular self-tapping implants reached their correct positions only after using the screw tap or the cylinder wrench for manual insertion. No such problems were noted when using standard fixtures after bone pre-tapping. In the maxillae, neither of the two implant designs presented any problems. One standard and one self-tapping fixture failed to osseointegrate. Radiolucencies were seen in the bone around the apical portion of two fixtures, one of each design. The mean marginal bone resorption after 1 year of follow-up was 0.5 to 0.6 mm for the two fixture types.

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