Miniplate osteosynthesis with four different systems in sheep
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Miniplate osteosynthesis with four different systems in sheep. / Gutwald, R; Schön, R; Metzger, M; Kreutzer, K; Rahn, B; Schmelzeisen, R; Sauerbier, S.
in: INT J ORAL MAX SURG, Jahrgang 40, Nr. 1, 01.2011, S. 94-102.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Miniplate osteosynthesis with four different systems in sheep
AU - Gutwald, R
AU - Schön, R
AU - Metzger, M
AU - Kreutzer, K
AU - Rahn, B
AU - Schmelzeisen, R
AU - Sauerbier, S
N1 - Copyright © 2010 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
PY - 2011/1
Y1 - 2011/1
N2 - The aim of this study was to compare a combination of a locking system with self-tapping (ST-L) or self-drilling-tapping (SDT-L) screws with a combination of conventional miniplates with self-tapping (ST) and self-forming (SF) screws. A standardized osteotomy and osteosynthesis with one of the above mentioned systems was performed in 24 sheep. Callus formation was measured with the help of CT scans assisted by a navigation system. Specimens of each osteotomy gap were taken and examined histologically. The best results were observed when self-tapping screws and the Mini-Locking-System (ST-L) were applied. The slowest healing was seen in animals treated with miniplates and SF screws. After 8 weeks an increase in bone formation could be observed in the ST, SF, SDT-L systems. The results after 8 weeks were comparable with those achieved by the ST-L system after 4 weeks. The improved stability of the osteosynthesis with the ST-L system resulted in early ossification of the osteotomy gap and the smallest amount of callus formation.
AB - The aim of this study was to compare a combination of a locking system with self-tapping (ST-L) or self-drilling-tapping (SDT-L) screws with a combination of conventional miniplates with self-tapping (ST) and self-forming (SF) screws. A standardized osteotomy and osteosynthesis with one of the above mentioned systems was performed in 24 sheep. Callus formation was measured with the help of CT scans assisted by a navigation system. Specimens of each osteotomy gap were taken and examined histologically. The best results were observed when self-tapping screws and the Mini-Locking-System (ST-L) were applied. The slowest healing was seen in animals treated with miniplates and SF screws. After 8 weeks an increase in bone formation could be observed in the ST, SF, SDT-L systems. The results after 8 weeks were comparable with those achieved by the ST-L system after 4 weeks. The improved stability of the osteosynthesis with the ST-L system resulted in early ossification of the osteotomy gap and the smallest amount of callus formation.
KW - Alloys
KW - Animals
KW - Biocompatible Materials
KW - Biomechanical Phenomena
KW - Bone Plates
KW - Bone Screws
KW - Bony Callus
KW - Equipment Design
KW - Equipment Failure
KW - Fluoresceins
KW - Fluorescent Dyes
KW - Mandible
KW - Osteogenesis
KW - Osteotomy
KW - Phenols
KW - Sheep
KW - Sulfoxides
KW - Surface Properties
KW - Time Factors
KW - Titanium
KW - Tomography, X-Ray Computed
KW - Torque
KW - Xylenes
U2 - 10.1016/j.ijom.2010.09.026
DO - 10.1016/j.ijom.2010.09.026
M3 - SCORING: Journal article
C2 - 21084173
VL - 40
SP - 94
EP - 102
JO - INT J ORAL MAX SURG
JF - INT J ORAL MAX SURG
SN - 0901-5027
IS - 1
ER -