The influence of salivary contamination during light curing on degree of conversion and color stability of two composite resins.

ABSTRACT:

Background

Adequate polymerization of composite resin restorations is critical for their mechanical performance and long-term clinical success. Salivary contamination during light curing can interfere with polymerization and may influence color stability.

Objective

This in vitro study examined how artificial saliva contamination at specific intervals during light curing affects the DC (degree of conversion) and short-term color change or ΔE (Delta E) of two composite resins-Gradia Direct (microhybrid) and N-Ceram Bulk Fill (nanohybrid).

Methods

One hundred eighty disk specimens (n = 90 per composite) were allocated into nine experimental groups differing in contamination timing and curing duration. DC was determined by FTIR-ATR (Fourier-Transform Infrared- Attenuated

SUBMITTER: Rohaninasab M 

PROVIDER: S-EPMC12800347 | biostudies-literature | 2026 Jan-Feb

REPOSITORIES: biostudies-literature