OasisLMS

The 15 questions for exercise GD571 are based on the article “Optical properties and staining susceptibility of single-shade composite resins and their conventional counterparts” on pages 38-44. This exercise was developed by
Miles D. Turner, DMD, in association with the General Dentistry Self-Instruction Committee.

• explain the optical mechanisms, including structural color and translucency, that enable single-shade composite resins to adapt to surrounding tooth structures;
• compare CIE L*a*b*, VITA shade guide unit (SGU), and translucency parameter (TP₀₀) changes in conventional vs single-shade composites after immersion in coffee; and
• determine the clinical significance of overall color difference (ΔE*_ab and ΔE*₀₀) thresholds regarding perceptibility and acceptability in restorative composite materials.

Answers for this exercise must be received by October 31, 2027.

CE Unit(s): 2 CE hours

Subject Code: 250 – Restorative Dentistry 

Please Note: Evaluation questions will follow the Self-Instruction exercise.

All questions related to the exercise and evaluation must be completed in order to submit the exercise for scoring.