What question did this study set out to answer?

The study aims to compare color, surface roughness, and microhardness of occlusal splint materials from different fabrication methods.

March 6, 20260 citationsOpen Access

Analyzing Color, Surface Roughness, and Microhardness on the Unpolished and Polished Surfaces of Occlusal Splint Materials From Conventional and CAD-CAM Fabrication Methods.

UUUthai Uma TLThanchanit Lertyingyos TLTharathip Lilitsuvan

Key Points

The study aims to compare color, surface roughness, and microhardness of occlusal splint materials from different fabrication methods.
Compared color, surface roughness, and microhardness between polished and unpolished splints.
Assessed results from conventional versus CAD-CAM fabricated materials.
Analyzed the performance characteristics of ML-B occlusal splints.
ML-B splint exhibited the best overall performance with high microhardness and low surface roughness.
Polishing improved color metrics and reduced surface roughness across all splints.
Microhardness decreased in HC and 3D-B splints following polishing.

Abstract

Occlusal splint materials fabricated using different techniques had significant differences in color, surface roughness, and microhardness. The ML-B occlusal splint showed the best overall performance, with high L ∗, near-zero b ∗, moderate a ∗, low surface roughness, and the highest microhardness. Polishing generally followed the color trend L ∗ > a ∗ > b ∗, reduced surface roughness in all groups, and decreased microhardness in HC and 3D-B splints. Hence, some CAD-CAM materials can perform similarly to conventional splints, highlighting the importance of considering both material and fabrication methods to optimize clinical outcomes.

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