Search PubMed⌕ Search

Biomedical subjects

T L Watts

Publications and source records attributed to T L Watts.

46 records · Page 3Linked to original sources
PubMed1983

Initial physical tests of aluminoborate cements in the context of periodontal dressing development.

A new glass ionomer cement system (aluminoborate) is under consideration for dental applications, including the possibility of a periodontal dressing material. Following the development of pertinent adhesive and rheological tests, two experimental formulations were selected by a simple screening procedure and subjected to appropriate adhesive tests. One formulation proved satisfactory and was subjected to a rheological test in addition. The possible role of aluminoborates as periodontal dressing materials is discussed.

Adhesiveness↗
PubMed1980

Adhesion of periodontal dressings to enamel in vitro.

Adhesion to enamel is an important aspect of periodontal dressing retention. Details of tensile and shear bond strengths are presented for three dressing materials and a positive polycarboxylate control, and the data are discussed with regard to optimum levels of retention. A level of 2 MN/m2 is suggested for shear bond strength, and 1 MN/m2 for tensile bond strength, under the test conditions employed.

Acrylates↗
PubMed1979

Periodontal dressing materials.

A detailed review of periodontal dressings is presented, covering physical, chemical and biological aspects. Areas requiring further research are outlined, particularly in the physico-chemical sphere; and some contra-indications to particular substances are described. It is concluded that there is a definite place for dressings, but that more knowledge is required before optimal properties can be developed.

Bacteria↗
PubMed1979

Gingival bleeding in an experimental clinical trial design.

An experimental clinical trial design is described in which the onset of gingival bleeding was used as an indicator of early gingivitis. Twenty-nine dental students participated in a double-blind crossover trial utilising chlorhexidine as a known plaque inhibitor. The onset of gingival bleeding was assessed in three ways, one of which yielded a statistically significant difference in favour of the active mouthrinse (P = 0.02). The method has a role in screening agents believed to be active against gingivitis.

Adult↗
PubMed1978

Variability of gingival bleeding in experimental gingivitis trials.

Gingival bleeding is a difficult parameter to assess in experimental trials. The Confirmed Bleeding Day was recently developed as a measurement for this purpose. It was observed that considerable variations existed between the measurements made in a pilot study and an experimental trial, and these variations were subjected to a statistical analysis. The reasons for the variations are discussed, and recommendations made for the design of experimental trials involving gingival bleeding.

Chlorhexidine↗