[A study of clinical effects on treatment of 225 cracked-teeth].

PURPOSE: To analyse the clinical effects of cracked-teeth after filling or full crown restoration. METHODS: 225 cracked-teeth were divided into two groups: the early 77 cracked-teeth and the late 144 cracked-teeth according to their clinical features and diagnosis, and then different interventions were applied, the clinical effects were recordered and analysed. RESULTS: There was a significant difference after the early 77 cracked-teeth being treated by filling or full crown rehabilitation after 3 years follow up. The treatment to the late 144 cracked-teeth was excellent after 3 years' observation with root canal therapy or pulp mummification, and finally full crown restoration. CONCLUSIONS: By diving cracked-teeth into different stages and giving corresponding treatment, the cracked-teeth can be preserved successfully.