They may need to cut down on the application time, or the times per week that the process is done. However, if you still have problems you may want to seek out the advice of a professional for some tips that may have you still able to get your teeth whiter.
Isegi kõige tugevama kangusega tooteid võivad kasutata inimesed, kellel on hammaste tundlikkusega probleeme, kuid seda siis väga lühikest aega.