Will getting Bioclear for black triangles make teeth more prone to cavities and other damage or decay?

With a restoration done using Bioclear, you will still be able to floss and brush the same way you would with natural teeth so there is no increased risk of decay or damage to the tooth. It will have a smooth finish to avoid and bacteria or plaque from collecting on the surface and will be easy to keep clean with regular hygiene and homecare. The tooth underneath the composite will not be affected as it will be nice and sealed!