The effects of pre-tapping on the miniscrew-bone interface in the midface

W Bähr

doi:10.1016/s1010-5182(89)80101-5

The effects of pre-tapping on the miniscrew-bone interface in the midface

J Craniomaxillofac Surg. 1989 Nov;17(8):337-9. doi: 10.1016/s1010-5182(89)80101-5.

Author

W Bähr¹

Affiliation

¹ Dept. of Oral and Maxillo-Facial Surgery, University Hospital Freiburg, West-Germany.

PMID: 2592572
DOI: 10.1016/s1010-5182(89)80101-5

Abstract

The effects of pre-tapping on the AO miniscrew-midface bone interface were investigated in 140 methacrylate-fixed human cadaver specimens. An adequate contact was found in all 40 self-tapped and in 68 out of 100 pre-tapped samples. Since inadequate contact was found in the remaining 32 specimens from the pre-tapped group, it was concluded that the pre-tapping was responsible for the inadequate bone screw interface.

MeSH terms

Bone Screws*
Equipment Design
Facial Bones / anatomy & histology*
Humans
Microscopy, Polarization
Orbit
Pressure
Stress, Mechanical
Surface Properties
Zygoma