Effects of fluoride releasing bonding material on salivary microbial colonisation, plaque index and gingival index in orthodontic patients

Objective: To evaluate the effects of a fluoride releasing orthodontic bonding material on the colonisation of SM and LB in saliva, on plaque index and gingival index. The null hypothesis assumed that fluoride releasing orthodontic bonding material have no effect on these parameters. Design and Methods: Randomised, prospective, controlled trial. The 45 patients were randomly divided into 3 equal groups according to bonding material type - Group 1: TransbondTM Plus SEP and TransbondTM Plus colour change adhesive (fluoride releasing bonding material, compomer); Group 2: TransbondTM XT primer and Transbond XT adhesive (conventional composite); and Group 3: untreated control group (no brackets were bonded, negative control group). Results: SM level showed a significant increase in the Transbond XT group only. LB level showed a significant increase in the Transbond Plus, Transbond XT groups (p