title: [Preliminary evaluation of the clinical results of calcium phosphorate cement root canal sealer].
abstract: OBJECTIVE
  To investigate the clinic effect of calcium phosphorate cement as a root canal sealer-filler material.
  
  
  METHODS
  136 teeth with chronic periapical disease were instrumented and obturated with laterally condensed gutta-percha and either calcium phosphate cement(CPC) or iodoform paste. The patients were recalled and observed according to the clinic symptom and radiography after 1 week,3 months, 6 months and 1 year. The data was processed using SAS6.2 software package for Chi-square test and Wilcoxon rank test.
  
  
  RESULTS
  The patients of CPC group had mild reaction after treatment and the successful rate of 3-month was higher compared with the control group(with iodoform paste), however there was no different clinical effects between the two groups after one year.
  
  
  CONCLUSIONS
  Calcium phosphate cement root canal sealer can be acceptable for root canal filling , but the long term clinical results are needed be investigated.
authors.affiliation: Department of Endodontics and Conservative Dentistry, School of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, China.
authors.forename: Jiong
authors.initials: J
authors.lastname: Chen
authors.forename: Shan-fen
authors.initials: SF
authors.lastname: Ma
authors.forename: Ya-qin
authors.initials: YQ
authors.lastname: Zhu
mesh_terms: D002130:Calcium Phosphates / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry*; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D006847:Hydrocarbons, Iodinated / Q000737:chemistry; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation
chemical_list: D002130:Calcium Phosphates; D003738:Dental Cements; D006847:Hydrocarbons, Iodinated; D012387:Root Canal Filling Materials; D006171:Gutta-Percha; C020243:calcium phosphate; C010473:iodoform