Clinical evaluation of chlorhexidine for the control of dental biofilm in children with special needs.

OBJECTIVE

The aim of the present study was to assess two vehicles and forms of the in-home administration of chlorhexidine for the control of dental biofilm in children with special needs.

BASIC RESEARCH

DESIGN

Twenty-nine children aged seven to 12 years (mixed dentition phase) participated in the study. A double-blind, placebo-controlled, cross-over clinical trial was carried out with the following treatment groups: 1 - 0.12% chlorhexidine gel (CG); 2 - placebo gel (PG); 3 - 0.12% chlorhexidine spray (CS); 4 - placebo spray (PS). Ten-day experiment periods were separated by 15-day washout intervals.

MAIN OUTCOME MEASURES: The parameters evaluated were plaque, gingival bleeding, and preferences of parents/caregivers.

RESULTS

The initial conditions were similar in each phase of the experiment (p > 0.05). The treatments with chlorhexidine (gel and spray) achieved a significant reduction (p < 0.0001) in plaque and bleeding. The placebo treatments did not achieve significant differences (p > 0.05). The parents/caregivers preferred the administration of chlorhexidine in spray form.

CONCLUSIONS

The topical administration of chlorhexidine associated to tooth brushing led to a reduction in dental biofilm and gingival bleeding in children with special needs. Administration in spray form proved easier and was preferred by parents/caregivers.