EVALUATE DEGREE OF CONVERSION OF NEW BIOACTIVE ORTHODONTIC ADHESIVE WITH COLOR CHANGE & FLUORESCENCE PROPERTY

Objectives:This study aimed to assess the effect of adding fluorescent dyes & color change dyes in different concentration to bioactive orthodontic adhesive by measure the degree of conversion.
Materials and Methods: Bioactive BEAUTIFIL Injectable XSL (S-PRG), from (GIOMER, SHOFU, JAPAN) mixed with color change dye, Black changing to Colorless, (Atlanta chemical engineering, USA), using in 0.02%, 0.2% & 2% of weight concentrations & with Flourcence dye (Strontium aluminate), White Glow in the Dark Powder from
(Techno Glow Inc., USA) which glows up for long time, using in 5%, 10% & 15% of weight concentrations. For degree of conversion (DC) 100 disk shape samples prepared & divided into 10 groups with 10 samples as following: Group 1: BEAUTIFIL Injectable XSL Adhesive (control group), Group 2: BEAUTIFIL Injectable XSL with 5%
flourcence material. Group3: BEAUTIFIL Injectable XSL with 10% flourcence material. Group4: BEAUTIFIL Injectable XSL with 15% flourcence material. Group5: BEAUTIFIL Injectable XSL with 0.02% color change material. Group6: BEAUTIFIL Injectable XSL with 0.2% color change material. Group7: BEAUTIFIL Injectable XSL with 2% color change material. Group8: BEAUTIFIL Injectable XSL with 0.02% color change material & 5% flourcence material. Group9: BEAUTIFIL Injectable XSL with 0.2% color change material & 10% flourcence material. Group 10: BEAUTIFIL Injectable XSL with 2% flourcence material & 15% flourcence material. The Fourier Transform Infrared spectrophotometer FTIR (ALPHAII PLATINUM-ATR. Bruker. GERMANY) used to determined degree of conversion.
Results:The use of dyes with bioactive adhesive show statistically significant difference between groups. but there was decreasing in degree of conversion with increase dye concentration.
Conclusions: Acceptable degree of conversion within bioactive adhesive with color change &/or fluorescence properties are obtained but with increase concentration of dyes the degree of conversion decreased.