Degradation of tissue conditioners in complete dentures: an in situ study.
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.
Elsemann
Rogério Brasiliense
RB
Dental School, University of Santa Cruz, Santa Cruz do Sul, RS, Brazil. rogerioe@unisc.br
Cosme
Dúcia Caldas
DC
Souto
André Arigony
AA
da Silva
Diego Fabris Ferreira
DF
de Mello
Jerônimo Silva
JS
Shinkai
Rosemary Sadami Arai
RS
D003827:Denture, Complete, Upper; D005260:Female; D006244:Hardness; D006801:Humans; D016014:Linear Models; D008422:Materials Testing; D010795:Phthalic Acids / Q000737:chemistry; D014016:Tissue Conditioning, Dental
D010795:Phthalic Acids