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Identification of bone quality in conjunction with insertion of titanium implants. A pilot study in jaw autopsy specimens.

Journal article
Authors Bertil Friberg
Lars Sennerby
J Roos
Ulf Lekholm
Published in Clinical oral implants research
Volume 6
Issue 4
Pages 213-9
ISSN 0905-7161
Publication year 1995
Published at Institute of Odontology
Institute of Surgical Sciences, Department of Biomaterials
Pages 213-9
Language en
Keywords Aged, Aged, 80 and over, Alveolar Process, anatomy & histology, surgery, Bone Density, Dental Implantation, Endosseous, Female, Humans, Male, Mandible, anatomy & histology, physiology, surgery, Maxilla, anatomy & histology, physiology, surgery, Middle Aged, Pilot Projects, Statistics, Nonparametric
Subject categories Surgical research


Ten autopsy jaw specimens (6 mandibles, 4 maxillae) were used for cutting resistance measurements during low-speed threading. Overall, 31 sites were analyzed where implants were inserted into threaded canals. Bone area measurements were performed around the implants as described previously. The cutting resistance values together with the total bone area values were found to be higher in mandibles than in maxillae, and a tendency towards higher values was seen in incisor regions compared with premolar regions. Furthermore, an intraindividual comparison between the true cutting resistance and the bone density values of prepared sites showed a statistically significant correlation. The method with cutting resistance measurements for evaluation of bone quality seems therefore to be reliable, at least when used in human autopsy jaw bone specimens.

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