Thermal Linear Expansion and Residue of Dental Inlay Waxes With Local Paraffin

Abstract

Paraffin as main component of dental inlay wax is produced in Indonesia. The aim of this research was to investigate the effect of compositions on thermal linier expansion (TLE) and residue of dental inlay waxes with local paraffin and beeswax. Five inlay wax compositions were repared of paraffin, carnauba wax, and beeswax with ratio: 60:35:5 (K-60), 65:30:5 (K-65), 70:25:5 (K-70), 75:20:5 (K-75), and 80:15:5 (K-80) in w/w %. Specimens of TLE (267x6,35 x6,35 mm) and residue (1g) were prepared of 5 compositions, its components, and commercial inlay wax (n=4). The TLE and residue test were done based on ANSI/ADA Specification no.4. Anova tests showed that composition were influenced the LTE and residue of inlay waxes (p<0.05). LSD results showed LTE differences among K-75 and other groups, residue of K-75 and K-80 and other groups (p<0.05). Dental inlay waxes compositions with high local paraffin concentration showed high LTE and residue, but these properties were fulfilled the ANSI/ADA requirements for dental inlay waxes.