What are teeth whitening systems
With all types of bleach results will vary from person to person and depends degree of success of bleach on the health of dental condition, the type and degree of yellowing teeth, and the type and concentration of the solution used in bleach, and user time, and follow the patient instructions, and bleach the user's system.
Treatment of nerve
It is a tissue containing nerves and blood vessels extends from inside the tooth to the root end to come out to the jawbone