Comparison of combined application treatment with one-visit varnish treatments in an orthodontic population

Abstract

Objective: To evaluate the effect of chlorhexidine-thymol varnish alone, its combination with chlorhexidine-fluoride containing dentifrice and fluoride varnish on oral hygiene and caries prevention in orthodontic patients. Study design: Sixty patients, aged 12-18, with orthodontic fixed appliances were randomly assigned into three groups as follows: Group 1 (n=20): 1% chlorhexidine and 1% thymol varnish (Cervitec®Plus); Group 2 (n=20): Cervitec®Plus+ 0.2% chlorhexidine and 0.2% sodium fluoride (900 ppm fluoride) (Cervitec®Gel)); and Group 3 (n=20): 0.1% fluoride varnish (Fluor Protector®). Mutans streptococci (MS), lactobacilli (LB) levels, buffering capacity (BC), visible plaque index (VPI), and gingival bleeding index (GBI) scores were evaluated at four stages: T0, before orthodontic bonding; T1, one week after orthodontic bonding; T2, one week; and T3, four weeks after the first application, respectively. Inter and intra group comparisons were made by the Kruskal-Wallis, Mann-Whitney U, Friedman and Wilcoxon Signed-Rank tests with Bonferroni step-down correction (P<0.017). Results: Significantly lower MS and LB levels were found in Group 2 than Group 1 (T2) and 3 (T2, T3) (P<0.017). Groups 1-2 (T2) showed significantly higher BC (P<0.017) and lower VPI and GBI (P<0.017) scores compared with Group 3. Decreased MS levels at T2 (P<0.017) and T3 (P>0.017) were found in Group1-2 compared with T0. Significantly lower LB levels were recorded in Group 2 at T2 compared with T0 (P<0.017) while no significant differences were seen in Group 1 and 3 (P>0.017). Conclusions: Addition of Cervitec®Plus+Cervitec®Gel combination to the standard oral hygiene regimen may be beneficial for orthodontic patients for maintaining oral health by reducing bacterial colonisation and gingivitis. Key words:Chlorhexidine, flouride, mutans streptococci, lactobacilli, antibacterial effect, plaque, gingivitis, orthodontic treatment.

Microbiological Changes and Caries-Preventive Effect of an Innovative Varnish Containing Chlorhexidine in Orthodontic Patients

“…One of them is that performed by Sköld-Larsson et al in 2009, where they evaluated the changes of SM levels in fissures of molars in patients with fixed orthodontic appliances. The other is a study of Baygin et al [2013b], who examined the effects of different fluoride and CHX-containing products, among them Cervitec Plus ® , after 1-visit treatments in orthodontic patients.…”

Antibacterial action of Chlorhexidine/thymol containing varnishes in vitro and in vivo

“…The significant reduction in lactobacilli during and at the end of the study is in accordance with results by Baygin et al . . In comparison with mutans streptococci, lactobacilli require higher concentrations of chlorhexidine, and the inhibitory effect is dose‐dependent .…”

Effects of chlorhexidine varnish on caries during orthodontic treatment: a systematic review and meta-analysis

“…A recent systematic review concluded that, indeed, the majority of studies found CHX varnish to be an effective antimicrobial against mutans streptococci 24 . However, a significant number of these articles did not evaluate caries as an outcome of the treatment 25,26 . Instead, they attempted to analyze mutans streptococci reduction as an outcome.…”