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PubMed1975

[Is the testing for changes in shape of denture base materials meaningful].

The results obtained in measurements of the dimensional behavior of U-shaped specimens correspond to the dimensional behavior of dentures. Part of the dimensional changes found in U-shaped specimens are not observed to the same extent in dentures, but produce interior tension in the denture. The bigger the dimensional changes in the U-shaped specimen, the bigger the dimensional changes in the denture or the tensions in its interior. Thus, the results of the measurements of U-shaped specimens demonstrate the behavior of a clinically used denture. Corresponding guidelines for testing purposes are proposed.

Dental Materials↗
PubMed2003

[Glass fiber polymerization--an effective method of increasing fracture resistance of the denture base (case reports)].

Three cases are presented to demonstrate how the application of glass fibres could be integrated into the treatment plan of removable dentures. In Case one the lack of space excluded the use of chrome-cobalt framework, but glass fibre reinforcement for the implant prothesis, secured by ball attachments, ensured structural stability. In Case two in order to keep the upper canine, an overdenture was constructed, which incorporated glass fibres in its dental base to prevent fracture propagation there. In Case three where the transfer of an extremely great chewing load to the dental base caused repeated fractures, the complex treatment of second framed work, fibres reinforcement and reline gave a stable satisfactory result over a long-term monitoring period. It was concluded, as presented, that the application of glass fibre reinforcement polymerised in the denture base can ensure structural stability and prevent fracture.

Dental Materials↗