title: Effect of saliva contamiination on the shear bond strength of orthodontic brackets bonded with a self-etching primer.
abstract: This study evaluates the effect of saliva contamination at different stages of the bonding brackets procedure using the self-etching primer Adper Prompt L-Pop (3M ESPE, Minneapolis, Minn) and the resin orthodontic adhesive system Transbond XT (3M). A total of 70 brackets were bonded to human extracted premolars, which were divided into four groups: group 1, uncontaminated (control); group 2, saliva application before priming; group 3, saliva application after priming; and group 4, saliva application before and after priming. Shear bond strength was measured with a universal test machine. The adhesive remnant on the tooth after debonding was determined using image analysis equipment. Significant differences were only observed between group 1 (12.42 +/- 3.27) and groups 2 (9.93 +/- 4.50) and 4 (9.59 +/- 2.92) (P < .05). Concerning the adhesive remnant, no significant differences were found between the groups evaluated (P > .05).
authors.affiliation: Docent Unit of Orthodontic, Dental Clinic, University of Murcia, Murcia, Spain.
authors.forename: M Dolores
authors.initials: MD
authors.lastname: Campoy
authors.forename: Ascensión
authors.initials: A
authors.lastname: Vicente
authors.forename: Luis Alberto
authors.initials: LA
authors.lastname: Bravo
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000704:Analysis of Variance; D001641:Bicuspid; D001840:Dental Bonding; D003799:Dental Stress Analysis; D004866:Equipment Contamination; D006801:Humans; D008422:Materials Testing; D016910:Orthodontic Brackets; D019279:Resin Cements; D012463:Saliva; D033081:Shear Strength; D018709:Statistics, Nonparametric
chemical_list: C408584:Prompt L-Pop; D019279:Resin Cements; C477790:Transbond XT