Polymerization characteristics of colored compomers cured with different LED units

Journal of Applied Biomaterials & Functional Materials
Meltem BakkalSerife Ozalp

Abstract

Incomplete polymerization of a resin material used for dental restoration affects the properties of the restoration. We evaluated the structural and mechanical properties of three different colored compomers cured with three different LED units to observe the characteristic changes occurring in different matches. Polytetrafluoroethylene molds (5 mm in diameter and 2 mm in thickness) were used to prepare disk-shaped sample specimens. Nine sample groups (each of five specimens) were prepared, three each of different compomer resin colors (gold, berry, and silver). Samples were cured using three different LED units (Optima, VALO, and Demi Ultra), according to the manufacturers' instructions. Microstructural properties of samples were characterized by determining the degree of curing using Fourier-transform infrared spectroscopy and by analyzing sample morphology under a scanning electron microscope. The Vickers hardness, compressive strength, and elastic modulus of the samples were measured to investigate their mechanical properties. The degrees of curing decreased in the order of silver > berry > gold for all curing units. Conversely, gold compomers exhibited poorer mechanical values than the berry and silver counterparts. The Op...Continue Reading

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Citations

May 31, 2019·Drug and Chemical Toxicology·Neslihan CelikNilgun Seven
Dec 3, 2021·Journal of Prosthodontic Research·Melissa David-PérezAndrés A Agudelo-Suárez

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Methods Mentioned

BETA
infrared
scanning electron microscopy

Software Mentioned

VALO
Xtra
Optima
SPSS
Demi Ultra
OriginPro

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