Curable dental compositions and uses thereof
View Patent ↗A curable dental composition includes a compound having structural formula (A) where X is an amine-, oxygen-, or sulfur-containing linkage; Y is an amine-, oxygen-, or sulfur-containing linkage; n is 1-15; m is 1-5; p is 1-5, with the proviso that when p is greater than 1, m is 1; each R 1 is, independently, an alkyl or aryl group having 2 to 20 carbon atoms that is linear, branched, cyclic, or some combination thereof, and optionally includes one or more heteroatoms or unsaturated bonds; and each R 2 is, independently, a hydrogen atom or CH 3 The composition also includes filler. The filler is present in an amount of at least 25 wt.-%, based on the total weight of the curable dental composition.
1. A curable dental composition comprising:
a compound having structural formula (A):
where
X is an amine-, oxygen-, or sulfur -containing linkage;
Y is an amine-, oxygen-, or sulfur -containing linkage;
n is 1 -15;
m is 1 -5;
p is 1-5, with the proviso that when p is greater than 1, m is 1;
each R 1 is, independently, an alkyl or aryl group having 2 to 20 carbon atoms that is linear, branched, cyclic, or some combination thereof, and optionally includes one or more heteroatoms or unsaturated bonds; and
each R 2 is, independently, a hydrogen atom or CH 3 ; and
filler, wherein filler is present in the curable dental composition in an amount of at least 25 wt.-%, based on the total weight of the curable dental composition.
2. The curable dental composition of claim 1 , wherein at least one R 1 is selected from
3. The curable dental composition of claim 1 , wherein n is 1-10.
4. The curable dental composition of claim 1 , wherein m is 1-3.
5. The curable dental composition of claim 1 , wherein R 1 has 4 to 7 carbon atoms.
6. The curable dental composition of claim 1 , wherein the compound having structural formula (A) is present in the curable composition in an amount of at least 5 wt.-%, based on the total weight of the curable dental composition.
7. The curable dental composition of claim 1 , wherein the refractive index of the compound having structural formula (A) is between 1.53 and 1.60 (n D 20 ).
8. The curable dental composition of claim 1 , wherein the viscosity of compound (A) is no more than 3500 Pa*s at 25 degrees Celsius.
9. The curable dental composition of claim 1 , wherein the refractive index of a reaction product of the curable components of the curable composition inclusive of filler having a particle size of 100 nm or less differs from the refreactive index of the filler by less than 0.05.
10. A method comprising producing a dental cement, a crown and bridge material, a dental filling material, a casting material, a cavity liner, a coating composition, a mill blank, an orthodontic devices, a sealant or combinations thereof using the curable composition of claim 1 .
11. An article comprising a cured composition, wherein the cured composition is the reaction product of the curable dental composition according to claim 1 .