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Los Angeles Dental Bonding
Dental bonding is used by Los Angeles cosmetic dentist Dr. Thein for repairs of chips or gaps in front teeth. It requires a true artist to do it well.
The dental bonding material is called composiste. It is manufactured to be a thick paste with a consistency of modeling clay. A dentist with artistic ability can sculpt it into a shape that mimics the appearance of your tooth.
It is also made in various degrees of polishability, translucency, and in a variety of shades.
On the right is a photograph of this composite being applied to a patient's central incisor. |
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When this tooth bonding composite was first developed, it was made so that two pastes were mixed together and then they chemically cured. This made artistic dental work difficult because the material would be hardening as we tried to shape it. Later is was made so that it was light cured. Under ordinary operating light, it hardens very slowly. But once the composite is properly shaped, a very intense curing light can be shined on it to harden it in a matter of seconds. |
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On the left is a sample of some dental bonding work. This chip was caused by an accident.
In the "after" photograph, you can see that the repair blends seemlessly with the tooth. This requires some artistic ability. Notice that the color of the tooth and the repair are not the same throughout. There is a thin very light line at the incisal edge of the tooth. Above that is a more grayish translucent area. As you get further up the tooth, it gradually darkens into a creamy tone.
Notice also that the surface texture of the tooth has been mimicked in the repair. The cosmetic dentist has to pay very close attention to this surface texture and the gloss, or the tooth will look like it has been repaired.
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Many dentists are uncomfortable doing dental bonding work, because of the artistic ability required. And one of the problems that patients encounter is that their dentist won't stock a complete variety of these materials. But dentists like Dr. Thein who do a lot of cosmetic dentistry will stock an extensive inventory of composite with various textures, strengths, translucencies, and polishability, along with a complete shade selection and special custom tints. That way he can perfectly match any tooth.
Other Uses of Dental Bonding
Dental bonding is helpful for small chips, as shown above, and for spotting and other small imperfections in teeth.
It is also excellent for closing small gaps between teeth, called diastemas. See our tooth gap page for more information.
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It is generally not recommended for entire smile makeovers. Since those are fairly time-consuming projects, dental bonding can become very expensive when used for this. It is better to use porcelain veneers for complete makeovers. Since porcelain veneers are done in the dental laboratory, they don't require expensive dental chair time and they can be delegated to a ceramist. In addition, the porcelain is much harder and more stain resistant than composite, so it retains its beauty for many years longer than composite does.
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