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Volume 21 , Issue 6
November/December 2008

Pages 486–488

SHORT COMMUNICATION: Degradation of Tissue Conditioners in Complete Dentures: An In Situ Study

Rogério Brasiliense Elsemann, DDS, MSc, PhD/Dúcia Caldas Cosme, DDS, PhDb/André Arigony Souto, BChem, PhD/Diego Fabris Ferreira da Silva, DDS/Jerônimo Silva de Mello, DDS/Rosemary Sadami Arai Shinkai, DDS, MSc, PhDe

PMID: 19149062

This in situ study evaluated the Shore A hardness and phthalate concentration of 3 tissue conditioners (Coe-Comfort, Dura Conditioner, Softone) inserted into grooves on 9 maxillary dentures. Data were collected at baseline and after 3, 7, and 14 days of denture use. All materials showed a decrease in phthalate concentration and an increase in hardness over time, but the largest changes occurred during the first 3 days; 59% to 74% of the hardness variability was explained by the phthalate concentration. Overall, Coe-Comfort was softer and had less alteration in its phthalate concentration than Dura Conditioner and Softone up to day 7. Int J Prosthodont 2008;21:486–488.

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