Dental Bonding in
San Diego

About a third of all adults share one common complaint about their smiles: black triangles. Black triangles occur between the bases of teeth. Although some people have always had black triangles, they tend to increase with age. Unfortunately, closing black triangles has been a challenging problem in cosmetic dentistry. Porcelain veneers can be used to close black triangles, but they require removal of tooth material and can be expensive. Dental bonding can do it, too, but it’s more challenging, less durable, and more prone to staining.

Dental Bonding in San Diego

But now BioClear gives us a great approach to closing black triangles that is cost-effective, durable, and attractive. It can also be used for other types of tooth reshaping. To learn whether BioClear is right for you, please call (619) 377-8577 or email us for an appointment with a San Diego cosmetic dentist at Deluxe Dental today.

Causes of Black Triangles

As we noted above, black triangles are a common cosmetic complaint, affecting about a third of all American adults. They are so common because they can be traced back to a number of causes.

First, many people have black triangles around their teeth because that’s how their teeth are shaped. If your teeth have wide crowns but narrow roots, there is going to be a significant taper from the point where your teeth touch down to the gums. Your gums may not fill all this space.

Black Triangles BioCareActual Black Triangle BioClear Patient Teeth erosion can also lead to black triangles. The consumption of acidic foods and beverages as well as purging behavior related to bulimia nervosa, can cause your teeth to be worn away, which can cause the formation of black triangles.

But gum recession is probably the most common cause of black triangles. For many people, gums initially fill in the space between their teeth, but the thinnest, uppermost part of the gums, called the papillae, are vulnerable to damage and can recede. The most common cause of gum recession is gum disease, which affects two-thirds or more of American adults. Other causes of gum recession include aggressive toothbrushing or flossing, acid damage, and tongue, lip, and cheek piercings.

The Effects of Black Triangles

Black triangles are mostly known for their cosmetic effect. They draw the eye and make the smile look darker and less healthy. People will know (or assume) that you have been affected by gum disease.

But black triangles can also impact your oral health. These spaces at your gum line tend to trap food and foster the growth of oral bacteria. They’re also hard to clean, since brushing doesn’t get in there well, and flossing may not clean the space thoroughly. Aggressive cleaning may even speed gum recession.

How BioClear Works

We may begin the bioclear process by removing some tooth enamel, depending on the shape we’re trying to achieve, but it’s much less than is necessary for porcelain veneers, and in many cases, all that’s necessary is a little roughing to make it easier for the material to stick to the tooth. Then we will enfold the tooth in a thin sheet of clear mylar. This allows us to precisely shape the restoration. It can cling to the tooth and even slide below the gum line, making for a natural-looking shape and complete restoration. What makes BioClear ideal for treating black triangles? BioClear uses a flowable composite. It’s a material basically like dental bonding, but it’s heated so that it flows into the space around it. This makes it easy to get down under the teeth, where it’s hard to apply dental bonding.

Once we have achieved the shape we desire, we will pour in the flowable composite. This is warmed to allow it to flow properly, but it won’t feel hot to you–the composite is an insulator and doesn’t pass heat on readily. The flowable composite will fill the entire mold, leaving no voids and creating a smooth surface that makes the restoration durable and stain-resistant.

Once the composite is cooled and hardened, we will shape and polish it.

Advantages of BioClear

BioClear hasn’t been around very long, but it is growing rapidly in popularity because it provides a great restoration option. BioClear:

  • Is great for closing black triangles
  • Is highly stain resistant
  • Is very durable
  • Easy to repair if damaged
  • Can be completed in a single visit
  • Low impact on gum tissue
  • Less expensive than porcelain veneers

For all these reasons, everyone should consider BioClear when looking to reshape their teeth.

See Real Patient Reviews
in San Diego

Review from Sarah
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Five stars


The facility is gorgeous, equipment and services are state of the art, and most important: everyone I interacted with was professional, friendly and knowledgeable with their craft. So grateful to find my home for all my teeth and mouth needs!
Review from Tara Sheridan
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Five stars

Tara Sheridan

Great dentist, a nice clinic, and friendly staff. Minimal wait and everything explained well.
Review from Chris Henscheid
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Five stars

Chris Henscheid

Great staff, great office & procedure rooms. Newest technology and they all care about you. I have been going here since they opened and refer friends confidently.
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If you prefer to speak to a team member, please call (619) 377-8577.
(619) 377-8577