Influence of mounthrinse solutions on the color stability and microhardness of a composite resin.
OBJECTIVE
The aim of the present study was to evaluate three mouth rinse solutions' (Plax, Listerine and Periogard) influence on the microhardness and color stability of a composite resin (Esthet.X, Dentsply).


METHODS
For this purpose, forty specimens were prepared, being 10 specimens for each solution and 10 for artificial saliva (control group). Initially, specimens were polished and immersed in artificial saliva and following the initial color, an evaluation was made. For 30 days, specimens were immersed in the solutions three times a day for 1 min. After this cycling period, color change was analyzed and Knoop microhardness measures were carried out. A new color measurement was performed after repolishing the specimens.


RESULTS
The microhardness and color stability results showed no statistically significant difference among the studied solutions. However, samples immersed in Periogard showed a significant alteration in the composite resin brightness test.


CONCLUSIONS
It can be concluded that mouth rinse can influence the luminosity of composite resin.
Cesar Penazzo
CP
Lepri
Marcus Vinicius de Melo
MV
Ribeiro
Alessandro
A
Dibb
Regina Guenka
RG
Palma-Dibb
D001565:Benzoates / Q000737:chemistry; D002710:Chlorhexidine / Q000031:analogs & derivatives / Q000737:chemistry; D003116:Color; D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D003775:Dental Polishing / Q000295:instrumentation; D004338:Drug Combinations; D006244:Hardness; D006801:Humans; D008027:Light; D008422:Materials Testing; D009067:Mouthwashes / Q000737:chemistry*; D012459:Salicylates / Q000737:chemistry; D012464:Saliva, Artificial / Q000737:chemistry; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature; D013729:Terpenes / Q000737:chemistry; D013997:Time Factors; D014260:Triclosan / Q000737:chemistry
D001565:Benzoates; D003188:Composite Resins; D003764:Dental Materials; D004338:Drug Combinations; C466112:Esthet-X; D009067:Mouthwashes; C070868:Plax; D012459:Salicylates; D012464:Saliva, Artificial; D013729:Terpenes; D012967:Sodium Dodecyl Sulfate; D014260:Triclosan; C057473:Listerine; C010882:chlorhexidine gluconate; D002710:Chlorhexidine