Staining and calculus formation after 0.12% chlorhexidine rinses in plaque-free and plaque covered surfaces: a randomized trial

Abstract

ObjectivesStudies concerning side effects of chlorhexidine as related to the presence of plaque are scarce. The purpose of this study was to compare the side effects of 0.12% chlorhexidine gluconate (CHX) on previously plaque-free (control group) and plaque-covered surfaces (test group).MethodsThis study had a single-blind, randomized, split-mouth, 21 days-experimental gingivitis design, including 20 individuals who abandoned all mechanical plaque control methods during 25 days. After 4 days of plaque accumulation, the individuals had 2 randomized quadrants cleaned, remaining 2 quadrants with plaque-covered dental surfaces. On the fourth day, the individuals started with 0.12% CHX rinsing lasting for 21 days. Stain index intensity and extent as well as calculus formation were evaluated during the experimental period.ResultsIntergroup comparisons showed statistically higher (p<0.05) stain intensity and extent index as well as calculus formation over the study in test surfaces as compared to control surfaces. Thus, 26.19% of test surfaces presented calculus, whereas calculus was observed in 4.52% in control surfaces.ConclusionThe presence of plaque increased 0.12% CHX side effects. These results strengthen the necessity of biofilm disruption prior to the start of CHX mouthrinses in order to reduce side effects.

Potential of <i>Piper betle</i> extracts on inhibition of oral pathogens

“…Previous studies presented that chemical agents such as alkaline peroxide, alkaline hypochlorite, chlorhexidine, and disinfectant in denture cleanser and mouthwash can reduce dental plaque and the number of oral pathogens, significantly (6,7). However, long use of these agents can cause some defects in oral cavity such as certain adverse effects (8), increasing of tooth staining, and calculus formation (9). Moreover, changing oral taste can be easily found including bleaching of acrylic resin which is a denture base material (8,9).…”

“…However, long use of these agents can cause some defects in oral cavity such as certain adverse effects (8), increasing of tooth staining, and calculus formation (9). Moreover, changing oral taste can be easily found including bleaching of acrylic resin which is a denture base material (8,9).…”

Attitudes of Students of Different Schools of University of Zagreb on Tooth Bleaching

“…Pojedini čimbenici potiču niz kemijskih reakcija u samoj strukturi zuba i na taj ga način diskoloriraju. S obzirom na uzročnike, razlikujemo endogenu (4 -7) i egzogenu diskoloraciju (8,9).…”

“…Certain factors trigger a cascade of chemical reactions in the tooth structure and thereby cause its discoloration. Considering the causes, discoloration can be endogenous (4-7) and exogenous (8,9).…”

Evaluation of dental staining using a dentifrice containing chlorhexidine and zinc acetate. A doble blind randomized clinical trial

“…A doble blind randomized clinical trial of stains is the lack of dental plaque removal before the use of chlorhexidine. [10] Thus, the aim of the present study was to evaluate a dentifrice containing chlorhexidine digluconate and zinc acetate used for a period of 60 days, on the development of extrinsic tooth stains. …”