Coloring Effects of Disinfectants on Pure or Nano-TiO2-Incorporated Maxillofacial Silicone Prostheses

Silicone elastomers play a crucial role in the field of maxillofacial prosthodontics. To maintain optimal hygiene, various disinfectants have been reported to clean silicone prostheses. Nevertheless, when selecting disinfectant, it is important consider not only its antimicrobial efficacy, but also compatibility with materials, minimize any potential impact on physical properties material surfaces. The coloring effect such different types interest. A total 144 specimens (72 pure silicones, 72 nano-TiO2-incorporated from A-2000 and A-2006 silicones) were fabricated this study. spectrophotometric analysis was carried out, initial CIE L*a*b* color values measured prior disinfection. Specimens each group (with or without nano-TiO2) subjected 30-h disinfection period simulating 1 year following disinfectants: Control (tap water), 0.2% chlorhexidine gluconate, 4% 1% NaOCl, neutral soap, effervescent. After second recorded, change (∆E*) calculated. Significant differences observed among for both groups. Nano-TiO2 did show protection silicone. In contrast, nano-TiO2 incorporation provided against CHG 0.2%, 4%, NaOCl Most acceptable stability over time. silicone, except chlorhexidine, all disinfectant groups demonstrated within acceptability threshold 50:50% (∆E* = 3.0). On other hand, an change. Overall, could be used as suitable