SHOULD TITANIUM MINIPLATES BE REMOVED AFTER BONE HEALING IS COMPLETE

Authors
ROSENBERG A GRATZ KW SAILER HF
Citation
A. Rosenberg et al., SHOULD TITANIUM MINIPLATES BE REMOVED AFTER BONE HEALING IS COMPLETE, International journal of oral and maxillofacial surgery, 22(3), 1993, pp. 185-188
Citations number
12
Categorie Soggetti
Dentistry,Oral Surgery & Medicine
Journal title
International journal of oral and maxillofacial surgery → ACNP
ISSN journal
09015027
Volume
22
Issue
3
Year of publication
1993
Pages
185 - 188
Database
ISI
SICI code
0901-5027(1993)22:3<185:STMBRA>2.0.ZU;2-Q
Abstract
A prospective study of 32 patients was performed to analyze black pigm entation in the soft tissue covering titanium miniplates. This soft ti ssue was compared with the soft tissue covering Champy(R) stainless st eel plates. All plates were removed 8 months after application. Macros copically visible pigmentation was found in 25.6% of the soft tissue c overing titanium miniplates and in none of the soft tissue covering Ch ampy stainless steel plates. Microscopically visible pigmentation was found in 71.8% of the soft tissue covering titanium miniplates and in 65.3% of the soft tissue covering Champy stainless steel plates. Energ y-dispersive x-ray analysis of the soft tissue covering titanium minip lates revealed only the presence of titanium dioxide. In the soft tiss ue near Champy stainless steel plates, chromium, nickel, iron, and mol ybdenum were found. Electron microscopy showed titanium dioxide to be mainly deposited between the collagen fibers, whereas stainless steel particles were mainly found in giant cells.