Incorrect bushing causes Abrasion
Abrasion is the wearing down of tooth surface because of incorrect brushing and through the use of a hard brush.
They basically causes the gums to recede and exposes the dentine on the root surfaces of teeth which is unsightly as its yellow in colour and can make the teeth more sensitive to air.
Treatment of Abrasion
Person with abrasion should modify the tooth brushing technique. Switching to a soft brush or an electric toothbrush can also help to reduce abrasion.
But Where the root surface is exposed and sensitive to air should cover by composite resin fillings to stop the dentine sensitivity.