TRANSLUCENT WEAR RESISTANT DENTAL ENAMEL MATERIAL AND METHOD

摘要

The material for forming translucent wear resistant dental enamel having anopacity less than 50 percent, a localized wear volumeloss of less than 0.025 mm3 and a localised extended wear volume loss of lessthan 0.04 mm3, comprises a polymerizable matrix formingliquid and inorganic filler particles. The liquid comprises polymerizablematerial having a first refractive index. The filler comprises a firstplurality of particles having a second refractive index. The first pluralityof particles being formed from a low (0.1 to 1.0 micrometers) anda high (1 to 10 micrometers) median particle size plurality of particles. Thefirst refractive index being within 5 percent of said secondrefractive index. Preferably the filler further comprises a second pluralityof filler particles having an average particle size of from about0.01 to about 0.04 micrometers.