Light transmittance of fiber posts following various surface treatments: A preliminary study

ABSTRACT

Objective: The objective of this study was to compare the light transmittance of fiber posts following application of various surface treatments. Materials and Methods: Fiber post specimens (Snowpost red size #14) were tested (n = 7). The fiber posts were divided into five groups according to the application of surface treatments: Group 1: No surface treatment; Group 2: Etched with hydrofluoric acid (HF) + silane application; Group 3: Airborne-particle abraded with 110 μm Al₂O₃; Group 4: Irradiated with erbium: Yttrium-aluminum-garnet laser; Group 5: Airborne-particle abraded with 110 μm Al₂O₃ + silane application. The light transmittance of the specimens was compared using a spectrophotometer. Statistical significance was determined using one-way analysis of variance (ANOVA) (α = 0.05). Results: One-way ANOVA revealed that surface treatment had significant effects on light transmittance of posts (P < 0.001). While laser treatment had the highest percentage of light transmittance, treatment with silane following HF application had the lowest. Conclusion: Application of surface treatments might negatively affect the light transmission property of fiber posts.

Key words:

Fiber post - laser - light transmittance - surface treatment

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