Caries incidence in permanent first molars after discontinuation of a school‐based chlorhexidine‐thymol varnish program

Baca, Pilar; Junco, Pilar; Bravo, Manuel; Baca, Adela P.; Muñoz, Matías I.

doi:10.1034/j.1600-0528.2003.00034.x

Cited by 17 publications

(23 citation statements)

References 24 publications

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“…2 Chlorhexidine remains the gold standard as an antiplaque and anti-gingivitis agent, 3 and its efficacy in caries prevention had been established in clinical trials. 4 Its molecule is symmetric, consisting of a hexamethylene bridge with terminal 4-chlorophenyl groups. 3 It has been shown that chlorhexidine has an affinity to bacteria, probably because of an interaction between the positively charged chlorhexidine molecule and negatively charged groups on the bacterial cell wall.…”

Section: Introductionmentioning

confidence: 99%

Effect of Chlorhexidine Application on Microtensile Bond Strength to Dentin

Soares

Pereira²,

Pereira³

et al. 2008

Operative Dentistry

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©Operative Dentistry, 2008, 33-2, 183-188 SUMMARYThis study evaluated the effect on microtensile bond strength (µTBS) of chlorhexidine application to dentin at different times during an indirect restoration luting procedure. Sixty bovine incisors had their superficial dentin subjected to 0.12% and 2% chlorhexidine solutions for 15 seconds before, during and after 37% phosphoric acid etching, resulting in six groups (n=10): 1) 0.12% chlorhexidine + etching; 2) 2% chlorhexidine + etching; 3) etching + 0.12% chlorhexidine; 4) etching + 2% chlorhexidine; 5) etching with 2% chlorhexidine; 6) etching without chlorhexidine (control). An adhesive system (Adper Single Bond 2) was applied and an indirect resin composite restoration (Filtek Z250) was luted using dual cured resin cement (Rely X ARC). After 24 hours of water storage, the specimens were tested by microtensile bond test (µTBS) at 0.5 mm/minute in a universal testing machine. The data were analyzed by one-way ANOVA (α=0.05), demonstrating no significant differences among the groups.

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Section: Introductionmentioning

confidence: 99%

Effect of Chlorhexidine Application on Microtensile Bond Strength to Dentin

Soares

Pereira²,

Pereira³

et al. 2008

Operative Dentistry

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“…[19][20][21] According to these results, the application of chlorhexidine did not affect the μ TBS value significantly. However, the difference in μ TBS between the bonding agents was significant as follows: Clearfil S 3 Bond showed the highest μ TBS, followed by G-Bond and Xeno V. Xeno V had the lowest pH (pH < 2), followed by G-Bond (pH = 2.3), and Clearfil S 3 Bond (pH = 2.4). Low-pH self-etch adhesives have rather low bond strengths, particularly to dentin.…”

Section: Discussionmentioning

confidence: 96%

“…Low-pH self-etch adhesives have rather low bond strengths, particularly to dentin. 22 This may be why Clearfil S 3 Bond showed the highest μ TBS, followed by G-Bond and Xeno V.…”

Section: Discussionmentioning

confidence: 99%

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Effect of 2% chlorhexidine application on microtensile bond strength of resin composite to dentin using one-step self-etch adhesives

Jang

Hur

Kim

et al. 2010

J Korean Acad Conserv Dent

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Objectives: This study examined the effect of 2% chlorhexidine on the μ TBS of a direct composite restoration using one-step self-etch adhesives on human dentin. Materials and Methods: Twenty-four extracted permanent molars were used. The teeth were assigned randomly to six groups (n = 10), according to the adhesive system and application of chlorhexidine. With or without the application of chlorhexidine, each adhesive system was applied to the dentin surface. After the bonding procedure, light-cure composite resin buildups were produced. The restored teeth were stored in distilled water at room temperature for 24 hours, and then cut and glued to the jig of the microtensile testing machine. A tensile load was applied until the specimen failed. The failure mode was examined using an operating microscope. The data was analyzed statistically using one-way ANOVA, Student' s t-test (p < 0.05) and Scheffe ′ ' s test. Results: Regardless of the application of chlorhexidine, the Clearfil S 3 Bond showed the highest μ TBS, followed by G-Bond and Xeno V. Adhesive failure was the main failure mode of the dentin bonding agents tested with some samples showing cohesive failure. Conclusions:The application of 2% chlorhexidine did not affect the μ TBS of the resin composite to the dentin using a one-step self-etch adhesive.

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“…However, relatively few studies have been focused on the long-term effect of CHX gel [Zickert et al, 1987] or on CHX varnish application [Baca et al, 2003]. The aim of the present investigation was therefore to follow-up our two earlier clinical studies on professional fl ossing with CHX gel treatment in preschool children and teenagers, in order to fi nd out whether the differences established at the end of the studies were maintained.…”

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confidence: 96%

Approximal Caries Increment in Two Cohorts of Schoolchildren after Discontinuation of a Professional Flossing Program with Chlorhexidine Gel

Gisselsson

Emilson²,

Birkhed³

et al. 2005

Caries Res

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We have in two earlier studies evaluated the effect of professional flossing with chlorhexidine (CHX) gel treatment, in 4- to 7-year-old preschool children and in 12- to 15-year-old teenagers. The mean caries reduction after 3 years was around 40% compared to placebo gel or no gel treatment. The aim of the present investigation was to follow up these two clinical studies. The preschool children were followed up to the age of 16 years and the teenager group to the age of 19. Of the total number of original children, 71 and 80% were available at the age of 16 and 19 years, respectively. At the 9-year follow-up, when the children were 16 years old, the former CHX group had still significantly lower mean DFS than the control group (p < 0.05). The differences in caries increment occurred between 7 and 12 years of age, whereas the number of new caries lesions during the next 4 years were almost the same in the three groups. At the 4-year follow-up, when the teenagers were 19 years old, DFS was 6.9 in the former CHX group compared to 10.4 in the control group (p < 0.05). The main conclusion of these two follow-up studies after 9 and 4 years, respectively, is that caries reductions obtained at the end of professional flossing with a 1% CHX gel were maintained.

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Caries incidence in permanent first molars after discontinuation of a school‐based chlorhexidine‐thymol varnish program

Abstract: The cessation for 3 years of a 3-month program of chlorhexidine-thymol varnish applications resulted in a nonsignificant increase in the prevalence of dental caries in the permanent first molar.

Cited by 17 publications

References 24 publications

Effect of Chlorhexidine Application on Microtensile Bond Strength to Dentin

Effect of Chlorhexidine Application on Microtensile Bond Strength to Dentin

Effect of 2% chlorhexidine application on microtensile bond strength of resin composite to dentin using one-step self-etch adhesives

Approximal Caries Increment in Two Cohorts of Schoolchildren after Discontinuation of a Professional Flossing Program with Chlorhexidine Gel

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