| 0802 APF Foam Topical Application and In Vitro Root Surface Caries | ||
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F. GARCIA-GODOY, Sr.1, J. HICKS2, C. FLAITZ3, P. VILLALTA4, and F. GARCIA-GODOY, Jr.1, 1Nova Southeastern University, Fort Lauderdale, FL, USA, 2Baylor College of Medicine, Houston, TX, USA, 3University of Texas Houston / Health Science Ctr, USA, 4Nova Southeastern University, College of Dental Medicine, Fort Lauderdale, FL, USA Objective: In vitro caries formation in root surfaces following acidulated phosphate fluoride (APF) foam topical application was evaluated utilizing polarized light microscopic techniques. Methods: Human permanent molar teeth (n=10) with sound root surfaces were utilized for this study and underwent soft tissue debridement and a fluoride-free prophylaxis. The teeth were sectioned into longitudinal tooth thirds. Each tooth third was assigned to one of the 3 treatment groups (no treatment control [n=10 tooth thirds]; Oral-B Minute-Foam [1.23% APF, 1-minute, n=10 tooth thirds]; Colgate Fluoro-Foam [1.23% APF, 1-minute, n=10 tooth thirds]). Following fluoride treatment, copious rinsing was performed to remove residual topical fluoride. An acid-resistant varnish was applied, leaving windows of exposed sound root surfaces. In vitro caries were created in the exposed sound root surface windows (2.2mM calcium, 2.2mM phosphate, 1.0mM fluoride, pH 3.90, 5 days). Longitudinal sections (5/tooth third) were prepared and lesion depths were determined using polarized light microscopy (water imbibition). Comparison of lesion depths among the groups was performed (ANOVA, DMR). Results: Mean lesion depths were: 227+ 21µm for the no treatment control group; 163+17µm for the Oral-B Minute Foam group and 148+23µm for the Colgate Fluoro-Foam group. Mean lesion depths were significantly less for the Oral-B Minute Foam (28% reduction) and the Colgate Fluoro-Foam (35%) groups when compared with the no treatment control group (p<0.05). Mean lesion depth for Colgate Fluoro-Foam was reduced by 9% compared with that for Oral-B Minute-Foam; however this difference was not statistically significant (p>0.05). Conclusions: In vitro root surface caries is significantly reduced with a single 1-minute topical application of APF foam. Both APF foam agents provided a similar degree of caries protection against an artificial caries attack. | ||
| Seq #95 - Fluoride Treatment, Dentifrices, Mouthrinses 10:15 AM-11:30 AM, Thursday, 11 March 2004 Hawaii Convention Center Exhibit Hall 1-2 | ||
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