Objective: This experiment investigated physical properties of Bisco experimental flowable inlay(BI) and packbale onlay(BO) material and four temporary filling products on market. The four products were Clip(CP)( Voco), Tempit®(TT)(Centrix), E-Z Temp Inlay(EZI)/Onlay(EZO)(Cosmedent), TempfilTM Inlay(TFI)/Onlay(TFO)(Kerr). Method: The water sorption(WP)/solubility, flexural modulus(FM)/strength(FS) tests were carried out using the method of ISO 4049 standard. Wear testing disc was made as 10mm in diameter and 3mm in thickness, and each side was cured with 500mw/cm2 light for 2x60s followed by embedding in an acrylic mold. The surface was finished with 1500grit SiC abrasive paper. After 24 hours at room temperature, two discs of each product were placed on a Prototech wear tester. To simulate a two-week wearing in oral environment, 6lbs abrasion force, 100 cycles per minute and 1300 cycles in total were applied. Worn depth(WD) was obtained by scanning its surface six times with a Suranalyze®500 from Federals, three times on each perpendicular direction. Result: Data were statistically analyzed by One-Way ANOVA. The letters indicate the values that are statistically different at 95% confidence level.
| TFI | EZI | BI | CP | TT | TFO | EZO | BO | |
| WD(µm) n=2 | 147(47)b | 121(37)cb | 67(11)ec | 118(23)cb | 137(23)cb | 269(42)a | 103(23)dc | 59(9)e |
| FM(GPa)x10-2 | 2.5(0.2)e | 8.7(1.6)d | 19.7(3.5)c | 6.5(0.4)ed | 6.1(0.6)ed | 5.2(0.6)ed | 25.2(1.8)b | 165.9(6.3)a |
| FS(MPa) | 2.1(0.1)f | 6.6(0.9)d | 13.3(1.5)c | 6.45(0.2)d | 6.9(0.6)d | 4.0(0.4)e | 16.5(1.0)b | 28.5(2.5)a |
| WP(μg/mm3) | 102.4(8.6)b | 129.3(5.7)a | 27.1(1.0)d | 47.4(1.7)c | 45.3(1.9)c | 29.1(3.2)d | 48.3(3.5)c | 27.6(2.2)d |
Conclusions: 1). BO and BI have the highest flexural strength among onlay and inlay material, respectively. 2). BO and BI have the least worn depth. 3) BO and BI have the least water sorption.