title: [A study of clinical effects on treatment of 225 cracked-teeth].
abstract: OBJECTIVE
  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.
authors.affiliation: Department of Stomatology, Dazu County People's Hospital, Dazu 402360, Chongqing, China.
authors.forename: Da-Ming
authors.initials: DM
authors.lastname: Gu
mesh_terms: D003387:Cracked Tooth Syndrome / Q000628:therapy*; D005500:Follow-Up Studies; D006801:Humans; D012390:Root Canal Therapy; D016896:Treatment Outcome