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A W Dodd

Publications and source records attributed to A W Dodd.

5 recordsLinked to original sources

The level of residual monomer in self-curing denture-base materials.

Because residual monomer may cause tissue irritation, we investigated two self-curing acrylic denture-base materials--one a compression type, and the other a pourable material--by means of gas-liquid chromatography. Both exhibited higher residual monomer levels than did heat-cured acrylics, with thick sections having lower values than did thin sections. The pourable material showed lower values than did the compression variety.

Acrylic Resins↗

Colour stability of two self curing denture base materials.

It is important that denture base materials should be colour stable, yet some self curing materials do not fulfill this requirement. Two newly introduced materials, one a 'pour type' resin, were investigated using a sophisticated colorimetric instrument to assess colour changes that might result from contact with water and denture cleansers. Both materials showed measurable colour changes following a two week soaking period, but these were barely perceptible to the eye. The possible reasons for colour instability are discussed.

Acrylic Resins↗

Compatibility of denture cleansers with some new self curing denture base materials.

All denture base materials are subjected to abrasion during function, but this will be greatest under certain denture cleansing regimens. Two new materials, a 'pour type' and a compression moulding acrylic resin were subjected to mechanical brushing with denture cleansers. It was found that abrasion resistance of the two materials was of the same order, and weight loss was greatest with one of the paste cleansers.

Acrylic Resins↗