Causes and risk factors
Grinding and clenching of teeth is one of the most common causes of cracked tooth. Bite with too much force or pressure causes opposing tooth to crack. Teeth with filling and which have undergone root canal treatment become weak and hence are more vulnerable towards cracking.
Clinical presentation:
Development of crack occurs on the tooth; however, the crack is too small to be visible. The cracks can either be seen on superficial layer or they can be deep in the form of splits in the root. It induces pain in the tooth on biting or chewing. The patient experiences constant pain and the tooth become sensitive to food of extreme temperatures.
Investigations:
The complaints narrated by the patient are taken into consideration. Clinical examination alone is very difficult to diagnose this condition. Oral x-rays are also not so useful in detecting the crack. The dentist conducts a test with the help of an explorer instrument. Staining of teeth with dye is done or fiberoptic light is used to detect the crack.
Treatment:
The treatment depends upon the location and extent of the crack. In case the cusp of teeth is affected, the tooth affected can be restored; however, involvement of the pulp needs root canal treatment. In severe cases, extraction of tooth is needed.
