The ‘Strip Method’: A Simple Method for Plaque pH Assessment

Carlén, Anette; Hassan, Haidar; Lingström, Peter

doi:10.1159/000315273

Cited by 35 publications

(28 citation statements)

References 16 publications

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“…This method has been shown to give approximal plaque-pH values equal to those obtained with the microtouch method in individuals after rinsing with 10% sucrose. 14 The fact that both the strip method and the microtouch method disrupt the biofilm and may remove some biofilm from the interproximal site could be a limitation. However, Lingström et al 15 evaluated plaque pH measurements by the telemetric method, which uses a pH electrode under an undisrupted biofilm, and by the microtouch method and found a similar trend in the pH curves between the two methods.…”

Section: Discussionmentioning

confidence: 99%

“…The pH measurement was performed with the new so-called "Strip method" 14 based on the usage of pH indicator strips (Merck®, Darmstadt, Germany -pH 4.0-7.0). Briefly, the strips were cut into 4 slices (± 2 mm in width) and inserted into approximal sites during 10 s. The pH value (one decimal) was assessed by comparison of the color of the strip with the color index guide supplied by the manufacturer.…”

Section: Test Session and Plaque Ph Measurementmentioning

confidence: 99%

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Effects of lactose-containing stevioside sweeteners on dental biofilm acidogenicity

et al. 2014

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The aim of this study was to evaluate the effect of a commercial lactose-containing stevioside sweetener on biofilm acidogenicity in vivo. Nine volunteers refrained from brushing their teeth for 3 days in five phases. On the 4th day of each phase, the pH of the biofilm was measured by the "Strip method". Interproximal plaque pH was measured before and up to 60 minutes after a 10 mL mouthrinse for 1 minute with the test solutions: I -sweetener with 93% lactose and 7% stevioside; II -sweetener with 6.8% saccharin, 13.6% cyclamate, and 0.82% stevioside; III -18% sucrose solution (positive control); IV -mineral water (negative control); and V-93% lactose solution. The results revealed that the most pronounced pH fall was found with sucrose (positive control), followed by the 93% lactose solution, the sweetener with lactose + stevioside, the sweetener with saccharin + cyclamate + stevioside, and finally water (negative control). According to the area under the curve, the two sweeteners containing stevioside were significantly different, and the sweetener with lactose + stevioside was significantly different from water but not from sucrose. The critical pH for dentin demineralization (pH ≤ 6.5) was reached by all volunteers after rinsing with sucrose solution, lactose solution, and the stevioside + lactose sweetener. Analysis of the data suggests that lactose-containing stevioside sweeteners may be cariogenic, especially to dentin.

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Section: Discussionmentioning

confidence: 99%

Section: Test Session and Plaque Ph Measurementmentioning

confidence: 99%

Effects of lactose-containing stevioside sweeteners on dental biofilm acidogenicity

et al. 2014

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“…The pH of the dental biofilm was measured at baseline at 4 interproximal sites (the mesial aspect of 16, 21, 31, and 46) with the use of the pH-strip method [24]. pH registrations where performed with pH indicator strips cut into an arrow shape to facilitate interproximal placement.…”

Section: Methodsmentioning

confidence: 99%

Presence of Helicobacter pylori and Campylobacter ureolyticus in the oral cavity of a Northern Thailand population that experiences stomach pain

Basic

Enerbäck

Waldenström

et al. 2018

Journal of Oral Microbiology

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Objective: To investigate oral diseases and microbiological conditions, such as the presence of ureolytic bacteria in dental plaque, in relation to experience of stomach pain in a remote adult Asian population.Methods: Ninety-three adults, 40–60-years old, from the Karen Hill tribe in Northern Thailand with no regular access to dental care were examined. Clinical registrations were performed and interproximal gingival plaque samples were collected and analyzed with the checkerboard (CKB) method for the presence of 14 oral bacterial species.Results: A number of 61 subjects reported daily stomach pain while 32 subjects had no symptoms from the stomach. The subjects with stomach pain had fewer remaining teeth (p < 0.05), higher caries experience (p < 0.05) and less BoP (p < 0.01). Most of the bacterial species were clustered statistically in three factors in a factor analysis, which together explained 65% of the microbiological variance. Factor 1, explaining 43.0% of the variance, was statistically associated with stomach pain (p < 0.001).Conclusions: The interproximal plaque/biofilm in adults of the study population showed a common presence of two gastrointestinal pathogens H. pylori and C. ureolyticus. The study also indicates for the first time a potential association between C. ureolyticus and stomach pain.

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“…Plaque pH Measurement pH indicator strips, measuring a pH value in the range of 4.0-7.0 (Spezialindikator, pH range 4.0-7.0; Merck, Darmstadt, Germany) were used [Carlén et al, 2010]. The strip method determines changes in plaque pH, discriminating differences at the level of 0.2-0.5 pH units following a sugar challenge to the same extent as the microtouch method (correlation coefficient 0.99).…”

Section: Questionnairementioning

confidence: 99%

“…The strip method determines changes in plaque pH, discriminating differences at the level of 0.2-0.5 pH units following a sugar challenge to the same extent as the microtouch method (correlation coefficient 0.99). Strips are easy to use and suitable for a chair-side clinical use [Carlén et al, 2010]. Each strip was cut into 4 pieces (approx.…”

Section: Questionnairementioning

confidence: 99%

Effect of a Sugar-Free Chewing Gum Containing Magnolia Bark Extract on Different Variables Related to Caries and Gingivitis: A Randomized Controlled Intervention Trial

Campus

Cagetti²,

Cocco

et al. 2011

Caries Res

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The effect of magnolia bark extract (MBE) on different variables related to caries and gingivitis administered daily through a sugar-free chewing gum was evaluated. The study was performed with healthy adult volunteers at high risk for caries as a randomized double-blind interventional study. 120 subjects with a salivary mutans streptococci (MS) concentration ≧10⁵ CFU/ml and presence of bleeding on probing >25% were enrolled and divided into three groups: magnolia, xylitol and control. The study design included examinations at baseline, after 7 days, after 30 days of gum use and 7 days after the end of gum use. Plaque pH was assessed using the strip method following a sucrose challenge. Area under the curve (AUC_5.7 and AUC_6.2) was recorded. Whole saliva was collected and the number of salivary MS (CFU/ml) was counted. Bleeding on probing was recorded as a proxy of dental plaque. Data were analyzed using ANOVA repeated measures. Magnolia gum significantly reduced plaque acidogenicity, MS salivary concentration and gingival bleeding compared to xylitol and control gums. Subjects from the magnolia and xylitol groups showed both MS concentration (p = 0.01 and 0.06, respectively) and AUC_5.7 (p = 0.01 and 0.04, respectively) to be significantly lower compared to baseline. Thirty-day use of a chewing gum containing MBE showed beneficial effects on oral health, including reduction of salivary MS, plaque acidogenicity and bleeding on probing.

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The ‘Strip Method’: A Simple Method for Plaque pH Assessment

Cited by 35 publications

References 16 publications

Effects of lactose-containing stevioside sweeteners on dental biofilm acidogenicity

Effects of lactose-containing stevioside sweeteners on dental biofilm acidogenicity

Presence of Helicobacter pylori and Campylobacter ureolyticus in the oral cavity of a Northern Thailand population that experiences stomach pain

Effect of a Sugar-Free Chewing Gum Containing Magnolia Bark Extract on Different Variables Related to Caries and Gingivitis: A Randomized Controlled Intervention Trial

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