Clinical Performance of Template-assisted Monochromatic Structural Colored Versus Universal Multishade Direct...

Area of Science:

• Dental materials science
• Restorative dentistry
• Clinical trials

Background:

• A clinical trial assessed template-assisted monochromatic structural colored versus universal multishade direct composite veneers.
• 88 direct composite veneers from 20 participants were evaluated over a 36-month period.
• Veneer preparations were on the labial surface of anterior teeth with a depth of 0.3-0.5 mm.

Purpose of the Study:

• To compare the 36-month clinical performance of monochromatic structural colored direct composite veneers against universal multishade direct composite veneers.
• To evaluate marginal integrity, adaptation, discoloration, texture, color match, fracture, anatomical form, secondary caries, and hypersensitivity.

Main Methods:

• A modified split-mouth, double-blind, randomized clinical trial was conducted.
• Participants received either monochromatic (OMNICHROMA) or universal (Ceram.x spectra) direct composite veneers.
• Clinical assessment used modified United States Public Health Service (USPHS) criteria, with marginal integrity evaluated by scanning electron microscopy.

Main Results:

• Significant differences were found between groups in marginal adaptation, discoloration, surface texture, and color match (p <0.05).
• No significant differences were observed in fracture type or anatomical form (p >0.05).
• No secondary caries or hypersensitivity were reported; marginal gap width showed no significant difference between groups.

Conclusions:

• Both monochromatic and universal multishade direct composite resin veneers exhibited comparable satisfactory clinical performance.
• The study supports the use of both veneer types for direct composite restorations.
• Long-term follow-up revealed positive correlations between evaluated clinical criteria for both veneer types.