Tooth abrasion

TOPIC;  TOOTH ABRASION

Abrasion of teeth refers to the loss of the protective layer of the tooth structure the enamel due to external mechanical forces. Due to this the gingival margin recesses and the dentin is exposed so there are more chances of tooth infection.

Causes of Abrasion:

1. Toothbrush Abrasion:
This is the most common cause, it contributes to almost 90% of the abrasion cases. It is not the toothbrush but because of
faulty brushing technique. Brushing using a hard toothbrush and the use of excessive force while doing only horizontal strokes is the main cause.

2. Habitual abrasion like ; tobacco, smoking, chewing object like pencil, pins chewing by tailors etc.

3. Abrasion by prosthetic appliances;
 Incase any clasps to hold RPD in place is exerting unwanted pressure on the cervical region of the tooth over a long duration of time, it will lead to abrasion.
 Clinical features
1 abrasion is a v' shape
2 the notch ('v' shape) has shiny dentin surface.
3 sensitivity
4 gingival recession
5 maxillary teeth are more commonly affected compared to mandible

     TREATMENT
1 if the abrasion is mild (means that the enamel is not exposed ) no need any treatment except OHI,  since is caused by wrong brush.
2 in case of sensitive with the dentin involment, restoration like GIC and composite is necessary to prevent further damage and to restore the original shape of the tooth.
3 if pulp is exposed RCT is necessary.

      @DENTAL HEALTH EDUCATION