Korean J Dent Mater.  2022 Sep;49(3):97-110. 10.14815/kjdm.2022.49.3.97.

Comparison of color stability, gloss, mechanical and physical properties according to dental temporary filling materials type

• Choi JW
• Shin YY
• Yang SY

• KMID: 2534139
• DOI: http://doi.org/10.14815/kjdm.2022.49.3.97

Abstract

The objective of this study was to compare the color stability, gloss, mechanical and physical properties of four different types of temporary filling materials. Commercially available hydraulic-setting (HS), powder-liquid (PL), thermoplastic (TP), and light-cured (LC) types of materials were used as experimental groups for each evaluation. To measure the color stability, the amount of color change (ΔE ^* ) was calculated based on the color brightness (L ^* ) and saturation (a ^* , b^* ) values using a spectrophotometer after immersion in coffee for 3 days and 7 days. The gloss unit was measured using a gloss meter. In addition, Vickers hardness, Shore hardness, compressive strength, flexural strength, water sorption and solubility, and morphology observation were performed. All experimental groups showed significant color change after immersion in coffee (p<0.05). The color stability increased in the following order: HS0.05). The Vickers hardness increased in the following order: PL>HS>TP (p<0.05). There was a significant difference in compressive strength in the order of group PL>HS and flexural strength in the order of group TP>LC (p<0.05). The water sorption and solubility increased in the following order: HS>LC>PL>TP (p<0.05). The surface microstructure change did not change prominently before and after immersion, except for HS. The results of this study suggest the criteria for selecting a temporary filling material suitable for each patient’s various oral characteristics according to the patient's aesthetic needs and goals for functional and physical improvement.

Keyword

Temporary filling material; Color stability; Gloss; Mechanical property; Water sorption and solubility