Acid etching is a process that involves the utilization of an acidic-based substance in order to prepare the enamel of a tooth for the direct application of a type of adhesive – such as a veneer or a resin-based filling. It is a type of restorative dentistry procedure that helps to microscopically roughen up the surface of a tooth so that the retention of a sealant composed of resin is increased.
When the acid comes in contact with the enamel on the tooth, it opens up the enamel tubules and immediately removes the smear layer. In this guide, you will learn important details about this dental procedure.
Etching and The Tooth
Etching is – simply put – a process where the surface of the tooth is roughened so that it has the capability of latching on to a prosthetic dental device. It roughens by dissolving a portion of the minerals that are located in the enamel and the dentin region of the tooth.
Etching is a type of erosion that is carefully controlled so that there is a heightened level of bonding when resin is placed on the tooth. This allows the bonding to chemically lock the prosthetic onto the tooth.
A special phosphoric acid – in gel form – is placed on the tooth and is allowed to sit on its surface for up to 30 seconds. The gel is then cured with a specially-designed dental light. Immediately following this process, the filling material is then added to the bond until the desired result is achieved.
The Techniques
There are – to date – three individual etching techniques utilized. The technique is selected by the dental professional performing the process and it is dependent upon the procedure that will be performed and the overall size associated with the restoration. The following briefly reviews each technique:
- The Self Etch – This technique involves the etching material and the dental bonding material to be combined and layered in just one step.
- The Selective Etch – This technique involves the etching substance to be applied only on the surface of the enamel.
- The Total Etch – This technique results in the etching gel to be places on both the entire enamel surface and the layers of dentin in the tooth. This is most often utilized when a large amount of the bonding material must be placed on the tooth or teeth and the dental professional feels as if the retention of the device may prove to be a problem.
Conclusion
Acid etching is a highly innovative strategy that many dental professionals use in order to bond a prosthetic in the mouth. It may also be used in the repair process. Whether you require a filling, a crown, or a veneer, acid etching may be for you.
If you would like to learn more about this process and determine if it is right for you, you may contact us today. If you would like to learn more about other processes and dental health topics, check our blog!