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Volume 21 , Issue 6
November/December 2001

Pages 609–615

Preparation of Autogenous Bone Grafts in Two Different Bone Mills

Heinz Erpenstein, Dr Med, Dr Med Dent, Peter Diedrich, Dr Med, Dr Med Dent, Raphael Borchard, Dr Med Dent

PMID: 11794572
DOI: 10.11607/prd.00.0445

The purpose of this study was to evaluate the performance of two bone mills (RQuetin Bone Mill and Micro Knochenmühle, Aesculap) for the grinding of autogenous bone (intraoral, cortical) according to the following criteria: (1) loss of bone during the grinding process, (2) particle size of the chips, (3) variability in chip size, (4) technical handling, and (5) cost-benefit ratio. The amount of material loss was determined by harvesting 30 bone cores from the mandibular symphysis of a pig. Each specimen was weighed before and after the grinding procedure on scales with an accuracy of 0.1 mg. The size and variability of the bone particles were determined histomorphometrically. Twenty-seven bone specimens from different patients were analyzed. Eight were ground with the Aesculap and 12 with the Quetin mill. Seven specimens harvested with a Brånemark implant bur served as controls. A histologic section was prepared from each specimen, and 10 bone particles per section were subjected to histomorphometric analysis. The Quetin mill was superior in all points to the Aesculap mill for the requirements of a periodontal practice. (Int J Periodontics Restorative Dent 2001;21:609–615.)

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