Is the Bioclear method or bonding better for my black triangles? (Photo)

I have three black triangles and I'm only 25 years old. I have to do something about it, I also don't want the black triangles to get worse so I want to know if bioclear method is better than the traditional bonding because it's a bit expensive and im dedicated to have a good oral hygiene (brush my teeth at least twice a day, floss etc.) My dentist said that my gums are healthy now so is this the best way. I like the shape of my teeth, veneers could be a possibility in a few years but not now