Research on the Behaviour of the Tooth-Crown Assemblies Made of Different Metal Materials in Solutiond Simulating the Oral Environment
Abstract
One of the basic principles of restorative dentistry is the conservation of the
hard dental structure, while satisfying both aesthetic and functional requirements.
Complying with this principle will minimize the harmful effects caused by the
diversity of works and materials. There are numerous studies that aim to determine
the behavior of different types of materials in the complex environment of the oral
cavity, but a small number are those that relate to the changes that occur in the
underlying dental hard tissues represented by dental abutments. Experiments were
performed on extracted teeth prepared by grinding. On the polished abutments,
crowns of three alloy types were made, namely: Cr- Co, Cr-Ni, and copper alloys.
The crowns were cemented onto the abutments with a glass ionomer cement and
subsequently immersed and maintained in solutions simulating the specific
conditions of an oral environment (also called artificial saliva) of the type: Ringer
Fusayama-Mayer and citric acid. After a period of six months, the ablation of
crowns was achieved and comments were made on the changes in the abutments
and also in the crown envelopes.
Collections
- 2015 fascicula9 nr3 [10]