2018年之前此材料僅有ivoclar vivadent 在生產製作，

2018年之前此材料僅有ivoclar vivadent 在生產製作，但2019年後專利過了，各家牙科大廠紛紛搶奪這塊大餅，所以在顏色及強度上有明顯提升

結果 (英文) 1:

Before 2018, only ivoclar vivadent this material in manufacturing production, but in 2019 the patent too, and various dental manufacturers have to snatch the piece of the pie, so have improved significantly in color and intensity

結果 (英文) 2:

Only ivoclar vivadent was produced until 2018, but after 2019 the patent was passed and dental factories snapped up the pie, so there was a significant improvement in color and strength

結果 (英文) 3:

Before 2018, only ivocal Vivadent was producing this material, but after 2019, the patent passed, and many dental companies snatched the cake, so the color and strength of this material were significantly improved