Clinical results with titanium crowns fabricated with machine duplication and spark erosion
- 1 January 1989
- journal article
- clinical trial
- Published by Medical Journals Sweden AB in Acta Odontologica Scandinavica
- Vol. 47 (5), 279-286
- https://doi.org/10.3109/00016358909007713
Abstract
A new method for fabrication of metal crowns has been developed by one of the authors (M.A.). There are two principles involved: machine duplication of models and electric discharge machining. The metal used is pure unalloyed titanium, which is processed as a coping and later covered by a composite resin. In 1986, 205 separate titanium crowns were made on 149 patients. One year later 192 crowns on 137 patients could be examined. Five crowns had been replaced by new ones owing to fracture of the composite resin. In accordance with the CDA quality evaluation system the following results were obtained for the remaining 187 crowns: margin integrity, 186 excellent or satisfactory (99.5%); anatomic form, 185 excellent or satisfactory (98.9%); and surface and color, 181 excellent or satisfactory results (96.8%). The 1-year results are promising, and further follow-up studies will be made.This publication has 3 references indexed in Scilit:
- Occlusal contact wear of prosthodontic materials An in vivo studyActa Odontologica Scandinavica, 1988
- A Clinical System for Scoring a Patient’s Oral Hygiene PerformanceThe Journal of the American Dental Association, 1973
- Periodontal conditions in patients treated with dental bridgesJournal of Periodontal Research, 1970