New gold dental alloy for metal-ceramic restorations

Framework Design of Metal-ceramic Restorations

Marginal fit of leucite-glass pressable ceramic restorations and ceramic-pressed-to-metal restorations.

STATEMENT OF PROBLEM Fabricating a feldspathic porcelain margin on a metal-ceramic restoration with a clinically acceptable marginal fit has proven to be a technique-sensitive procedure. Pressable ceramics are advocated to solve this problem. PURPOSE The purpose of this in vitro study was to compare the marginal adaptation of a pressable ceramic system when used with both all-ceramic and meta...

[Influence of metal-ceramic fixed dental restorations on the occurrence of discoloration of gingiva].

BACKGROUND Adverse effects of dental cast alloys on the health of patients are the problem in clinical practice. The aim of this paper was to describe the case of a patient with discolorated gingivae in the presence of fixed dental restorations and used diagnostic and therapeutic procedures. CASE REPORT A 30-year old pacient, presented with the complaints about unsatisfactory esthetic of his ...

Microleakage of Four Dental Cements in Metal Ceramic Restorations With Open Margins.

BACKGROUND Fixed prosthodontics is a routine dental treatment and microleakage is a major cause of its failure. OBJECTIVES The aim of this study was to assess the marginal microleakage of four cements in metal ceramic restorations with adapted and open margins. MATERIALS AND METHODS Sixty sound human premolars were selected for this experimental study performed in Tehran, Iran and prepared ...

Processing Capability of Apatite-Mullite Glass-Ceramic Materials for the Production of Dental Restorations

Introduction: There is currently significant interest in all-ceramic dental restorations. A potential non-metallic material for such restorations is an apatite-mullite glass-ceramic that could be processed to shape using different processing techniques. The aim of this study was to assess and evaluate the ability of an apatite-mullite glass-ceramic material to be processed using three routes: l...