Crack tooth is commonly associated with pain on biting on the tooth. A normal tooth consists of three layers, the enamel, the dentine and the pulp (Fig. 01). The pulp consists of sensitive nerve endings. The tooth can be cracked by excessive forces placed on it. This can be attributed to eating hard food, grinding or clenching of the teeth. A crack that extends to the base of the crown can be treated with root canal treatment and a crown. A crack that extends to the root is deemed to have poor prognosis and may need to be extracted (Fig. 02).