title: [Clinical evaluation of tunnel-restoration].
abstract: OBJECTIVE
  To evaluate the clinical effect of tunnel-restoration.
  
  
  METHODS
  35 teeth with pulpitis or periapical periodontitis caused by interproximal caries were selected. Tunnel-restoration was used after endodontic treatment. Clinical examinations were taken to follow up all the teeth at one year and two years respectively after treatment.
  
  
  RESULTS
  At one year after treatment, 35 cases were followed up, the rate of success was 100%. At two years after treatment, 33 cases were followed up and 2 cases were lost, the rate of success was also 100%.
  
  
  CONCLUSIONS
  Proximal contact point and marginal ridge of the teeth were preserved by using tunnel-restoration, which is very important to restore proximal contact, enhance the ability of resistance to fracture, and has good clinical effect.
authors.affiliation: Affiliated Stomatology Hospital, Shandong University, Shandong 250012, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Pi-shan
authors.initials: PS
authors.lastname: Yang
mesh_terms: D003793:Dental Restoration, Permanent / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010485:Periapical Periodontitis / Q000628:therapy; D011671:Pulpitis / Q000628:therapy; D014082:Tooth Fractures / Q000517:prevention & control