title: Effectiveness of primer and bond in sealant retention and caries prevention.
abstract: OBJECTIVE
  The purpose of this clinical trial was to test the use of a primer and bonding agent to increase the retention of a fissuresealant in a group of Kuwaiti children.
  
  
  METHODS
  In 78 6- to 9-year-old children who required sealants in all 4 permanent frst molars, sealants were placed in 2 teeth using a primer and bond (3M Scotch Bond) and in 2 teeth without primer and bond. Sealant retention was evaluated 1 and 2 years later. Sealant retention was scored as: (1) complete retention; (2) partial loss of sealant; and (3) complete loss of sealant Caries was scored for those teeth in which the sealant was partially or completely lost
  
  
  RESULTS
  At the 2-year examination, in teeth sealed with primer and bond (a) 64% of the sealants were completely retained; (b) 23% were partially lost; and (c) 13% were completely lost. In teeth sealed without primer and bond: (a) 68% of the sealants were completely retained; (b) 20% were partially lost; and (c) 12% were completely lost There was no difference in sealant retention (P=.22) and caries (P=.56) in teeth sealed with and without bond. In multivariate analyses after controlling for age, gender, tooth surface, and arch, no differences in sealant retention and caries were seen.
  
  
  CONCLUSIONS
  If a proper technique is used in sealant placement, primer and bond does not enhance sealant retention.
authors.affiliation: Division of Dental Public Health, Boston University School of Dental Medicine, Boston, MA, USA. karinam@bu.edu
authors.forename: Ana Karina
authors.initials: AK
authors.lastname: Mascarenhas
authors.forename: Huda
authors.initials: H
authors.lastname: Nazar
authors.forename: Sabiha
authors.initials: S
authors.lastname: Al-Mutawaa
authors.forename: Pramod
authors.initials: P
authors.lastname: Soparkar
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D002648:Child; D001840:Dental Bonding / Q000379:methods*; D003731:Dental Caries / Q000145:classification / Q000517:prevention & control*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008963:Molar / Q000473:pathology; D063065:Organophosphonates / Q000737:chemistry; D010895:Pit and Fissure Sealants / Q000627:therapeutic use*; D019279:Resin Cements / Q000737:chemistry; D016037:Single-Blind Method; D013499:Surface Properties
chemical_list: C487975:Delton Plus; D017220:Dentin-Bonding Agents; D063065:Organophosphonates; D010895:Pit and Fissure Sealants; D019279:Resin Cements; C425844:Scotchbond Multi-Purpose Plus; C454540:Scotchbond etchant