Effects of burnishing and polishing on marginal infiltration of radioisotopes in silver amalgam fillings

Influence of burnishing on amalgam adaptation to cavity walls.

Although burnishing after the curving of an amalgam restoration may enhance the surf ace texture, subsequent polishing is necessary to achieve a better result. Occlusal amalgam restorations placed in extracted deciduous molars were studied using an electron microscope. The fillings were carved only or both carved and burnished, and all were subsequently polished. Observations were made before and after polishing, and the results emphasized the effects of carving, burnishing, and polishing on the surface texture and marginal integrity of amalgam fillings.

Microscopic observations of amalgams carved by different methods and subsequently polished

The purpose of this study was to compare the margin integrity of burninshed and polished dental amalgams in vivo. Twenty patients each received one burnished and one unburnished polished amalgam. Each amalgam was placed, burnished, or polished according to conventional, contemporary techniques. After one year, an impression was made using silicone and replicated with araldite. The margins were studied from photomicrographs of the replica using a scanning electron microscope. The results iridicated that closed margins were more prevalent in the burnished, compared to the unburnished polished amalgam.

Effects of burnishing and polishing on marginal infiltration of radioisotopes in silver amalgam fillings

Citations

Influence of burnishing on amalgam adaptation to cavity walls.

Microscopic observations of amalgams carved by different methods and subsequently polished

A Scanning Electron Microscope Study of One Year In Vivo Amalgam-Enamel Interfaces

Related Papers (5)

Amalgam alloy; its heat treatment, flow, mercury content and distribution of dimensional change.

Scanning electron microscope study of marginal adaptation of amalgam in restoration finishing techniques

The Effect of Clinical Operation on the Corrosion Resistance of Dental Amalgam

Three-body Wear of a Hand-consolidated Silver Alternative to Amalgam

The influence of trituration time on the crushing strength of silver amalgam.