The higher surface hardness remained the same and reduced the amount of photopolymerization initiator that causes yellowness to the extreme.
Nu:le Coat Liquid Clear (hereafter Clear) is clear even immediately after light curing, so it is difficult to affect the original color tone of dental restoration even when applied overglaze. Therefore, Clear can be used easily for whitening shades.

The combination of flexible polyfunctional monomers and tough cross-linkable monomers reduced curing strain.
Therefore, even if the applied layer become thicker because of overglaze, it is less likely to occur cracks or floated surface.

Thanks to the small curing strain, the inhibition of cracking and floated surface can be expected even when a lot of liquid has been applied to the pit and fissure or the junction.

Curing deformation after light curing (strain amount) is greatly reduced comparing the thickness before light curing (0.5 mm) .

In the evaluation of toothbrush abrasion test (50000 times) *1), it is equal to or more than that of polishing finish, and excellent abrasion resistance has been confirmed.
It is reported that plaque adherence is rapidly increase when the surface roughness exceeds 0.2 μm *2). However, the surface roughness of Nu:le Coat applied surface is less than 0.1 μm even after 50,000 times of toothbrush abrasion test.

*1) ISO14569-1, the ratio of toothpaste and water is 1:2, Load weight 2.0N
Brush stroke 50,000 times is equivalent to about 7 years if it is assumed to brush teeth twice a day and brush 10 times per tooth.
*2) Bollen. M. Et al. : Dental Mater, 13 (4) 258~269, 1997.

Nu:le Coat Liquid was pursued an optimal viscosity that is easy to apply. Thanks to low viscosity design, hard to remain traces of a brush and easy to apply thinly and evenly. Thin hard-coated layers of about 5μm can be created, allowing coating and characterization without loosing the surface structure of dental restorations.
And please use Gel type when thicker layers are necessary.