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The term bonding is used to describe procedures where tooth-colored
dental resins and composites are used. Direct bonding techniques
can be used to change the shapes and colors of teeth as well
as to close unattractive spaces. It can also be used to repair
chipped or broken teeth or even to cover up unsightly stains.
Unlike crowns or caps, direct bonding requires only a minimal
amount of tooth reducation thus making it a very conservative
procedure.
After slight preparation, the tooth is etched with a weak phosphoric
acid solution to create a more porous and rougher surface for
increased bonding strength. Next, a composite (plastic) resin
in placed on the tooth and shaped, contoured and hardened with
a special curing light. It is then further shaped and highly
polished creating a very natural appearance. The procedure usually
requires only one visit and is not painful.
The bonded composite has an average life of four to eight years,
and often lasts longer depending on how and where in the mouth
it is applied and how it is maintained. The area can be touched
up and even re-bonded over time as necessary. |
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