title: A randomized controlled trial of ProRoot MTA, OrthoMTA and RetroMTA for pulpotomy in primary molars.
abstract: OBJECTIVE
  The aim of this study was to determine the clinical efficacy of the newly developed OrthoMTA and RetroMTA, compared to conventionally used ProRoot MTA, for pulpotomy in primary teeth.
  
  
  METHODS
  In this randomized clinical trial, 151 molars from 102 children, who met the inclusion criteria and were 3-10 years old, were enrolled. Ultimately, 143 teeth were divided in a randomized, single-blind manner into three groups according to the planned treatment: RetroMTA (n = 49 teeth), OrthoMTA (n = 47 teeth) or ProRoot MTA (n = 47 teeth). Clinical and radiographic follow-up examinations were conducted at 3, 6 and 12 months postoperatively.
  
  
  RESULTS
  By the end of the study period, 109 teeth were evaluated at 12 months. The radiographic success rates in these three groups were 100%, 94.7% and 94.7%, respectively; the corresponding clinical success rates were 100%, 97.4% and 100%. The Kaplan-Meier survival function curves relative to clinical and radiographic cumulative survival rates did not differ significantly between the three groups.
  
  
  CONCLUSIONS
  The success rates of RetroMTA, OrthoMTA and ProRoot MTA are indistinguishable, indicating that pulpotomy can be carried out successfully in primary molars with the newly developed materials.
authors.affiliation: Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: C-M
authors.initials: CM
authors.lastname: Kang
authors.affiliation: Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: S-H
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Conservative Dentistry, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: Y
authors.initials: Y
authors.lastname: Shin
authors.affiliation: Department of Pediatric Dentistry, Dental school, Kyung Hee University, Seoul, Korea.
authors.forename: H-S
authors.initials: HS
authors.lastname: Lee
authors.affiliation: Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: J-H
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Oral and Maxillofacial radiology, Dental school, Kyung Hee University, Seoul, Korea.
authors.forename: G T
authors.initials: GT
authors.lastname: Kim
authors.affiliation: Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul, Korea.
authors.forename: J S
authors.initials: JS
authors.lastname: Song
mesh_terms: D017607:Aluminum Compounds / Q000627:therapeutic use*; D017610:Calcium Compounds / Q000627:therapeutic use*; D002648:Child; D002675:Child, Preschool; D004338:Drug Combinations; D005260:Female; D006801:Humans; D008297:Male; D010087:Oxides / Q000627:therapeutic use*; D057872:Pulp Capping and Pulpectomy Agents / Q000627:therapeutic use*; D011672:Pulpotomy; D017640:Silicates / Q000627:therapeutic use*; D016037:Single-Blind Method; D014094:Tooth, Deciduous / Q000000981:diagnostic imaging; D016896:Treatment Outcome
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D057872:Pulp Capping and Pulpectomy Agents; D017640:Silicates; C086631:mineral trioxide aggregate
keywords: MTA; primary molar; pulpotomy; randomized controlled trial