Effectiveness of primer and bond in sealant retention and caries prevention.
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.
Mascarenhas
Ana Karina
AK
Division of Dental Public Health, Boston University School of Dental Medicine, Boston, MA, USA. karinam@bu.edu
Nazar
Huda
H
Al-Mutawaa
Sabiha
S
Soparkar
Pramod
P
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
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