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Xylitol Use and Prevention of Tooth Decay. Feasibility and Impact of Twice Daily Tooth brushing at Head Start. Presented By: Charles Hill, Director for Kittitas Co. Head Start Elizabeth Webb-Beeles, Health Manager for Kittitas Co. Head Start
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Xylitol Use and Prevention of Tooth Decay Feasibility and Impact of Twice Daily Tooth brushing at Head Start Presented By: Charles Hill, Director for Kittitas Co. Head Start Elizabeth Webb-Beeles, Health Manager for Kittitas Co. Head Start Dr. Kiet Ly, Clinical Assistant Professor and Researcher at Northwest Center to Reduce Oral Health Disparities, University of Washington
Topics for this Session • Oral health • Human diet and sugars • Causes of tooth decay • Xylitol: What? Where? How? • Northwest Center to Reduce Oral Health Disparities, University of Washington • Kittitas County Head Start feasibility project • Future study
Oral Health • A healthy mouth is integral to an individual’s total health. • America’s oral health has improved over the past 50 years. • Yet, tooth decay remains the single most common chronic childhood disease. • Worse, tooth decay is rising in preschoolers • Over 51 million hours of school are lost each year to dental problems.
The Great Fluoride Debate • Fluoride prevents tooth decay • Possible adverse side effect • Mottling of permanent teeth due to the swallowing of excessive fluoride by young children (dental fluorosis) • Benefit to health in preventing decay outweigh the risk? Progression of fluorosis
Increased Risk • Poor & Minority children suffer: • Twice as many tooth decay as their more affluent peers, and their disease is more likely to be untreated. • 12 times more restricted-activity days than children from higher-income families. • Poor & ethnic minority groups experience more oral health problems. • Individuals with medical or physical disabilities are also at greater risk.
Human Diet and Sugars 135 lbs. of sugar per person per year
Cause of Dental Caries • Streptococcus mutans (S. mutans) bacteria is the leading cause of tooth decay. • Plaque is a sticky film on teeth • Bacteria like S. mutans feast on sugars and starches found on teeth. • Bacteria metabolism produceacids that “eat away” teeth surfaces causing weak spots that can become cavities.
What is Xylitol? • Naturally occurring sweetener in the same class as sorbitol, maltitol, mannitol, erythritol. • Found in fibers of trees, fruits, and vegetables. • The human body produces several grams of xylitol a day. • FDA approved as a food additive (sweetener) in 1963.
How Xylitol Works • Cannot be fermented by plaque bacteria. • Microorganisms like S. Mutans do not readily metabolize xylitol into energy sources. • Inhibits growth and metabolism of S. mutans and reduces dental plaque. • Thus reduces S. mutans levels in plaque and saliva = • Reduction in acid production • Reduction in dental caries
Xylitol Prevents Tooth Decay • 1975: First study on the effects of xylitol conducted in Turku, Finland. • One year study, 102 subjects • Chewing Gum Each Day • S-group: 4 pieces of Sucrose gum • X-group: 4.5 pieces of Xylitol gum • The mean increment of decayed, missing and filled tooth surfaces: • S-group: 2.92 > X-group: 1.04
Xylitol Prevents Tooth Decay II • 2002: Swedish study on the effects of xylitol toothpaste on the reduction of S. mutans. • 6 month study, 155 subjects. • Toothpaste and brushing Twice Daily • Colgate Total with 10% xylitol • Colgate Total with triclosan (no xylitol) • Colgate Total without triclosan or xylitol(Placebo)
Four saliva and plaque samples gathered: • Baseline, 2 months, 4 months, 6 months
Xylitol Field Trial • 1994: Estonia school study on xylitol gum. • 3-year long period, 740 children (10 year olds). • Xylitol or “Control” gum groups. • Daily dose of 5 grams of xylitol in xylitol group. • Xylitol groups showed 35-60% reduction in caries incidence. Significant difference from control.
How Much Xylitol? • Research suggests 5 to 10 grams of xylitol per day for effectiveness. • Humans tolerate up to approx. 45 grams/day. • 5% may have cramps, some have loose stools. • Humans adapt, start slowly. • Symptoms should disappear. • Sorbitol is worse than xylitol.
Who Has Endorsed Xylitol for Caries Prevention? • 1988 –Finnish Dental Association • 1989 – Swedish • 1990 – Norwegian • 1992 – British • 1993 – Irish & Canadian • 1995 – Estonia • Many others since • Most recently, the Dental Hygienist Association in Arizona and Hawaii
Northwest Center to Reduce Oral Health Disparities • Oral health disparity means a disproportionate burden and risk of poor dental health in a particular population. • Mission: The Northwest Center to Reduce Oral Health Disparities conducts community-based research. We focus on solutions to dental and oral health disparities among vulnerable, rural, or under-served groups, particularly low-income families with children.
Disparities Center Xylitol Studies • Xylitol Chewing Gum • Dose response • Frequency response • Xylitol Snacks • Xylitol Gummy Bears • Xylitol Syrup • Xylitol Toothpaste NOT ALL XYLITOL PRODUCTS PROVEN EFFECTIVE
Kittitas County Head Start Project • 2007-2008 Academic Year • Information gathering, used historical data. • Epic Dental Xylitol-Fluoride toothpaste. • School • Twice-daily tooth brushing after meals • Home • Toothbrushes and toothpaste sent home to families twice during year • Encouraged brushing at home
Challenges Success • Children were receptive • Encouraged more frequent brushing • Parents liked it • Preparation of supplies • Facilities • Time • Home tracking
Parent Survey • End of Study Survey, spring 2008 • 57 surveys returned • 35 English • 22 Spanish • 12% had two children in program • 82% were enrolled for 6 months or more
Survey Results • Frequency of brushing at home • Child: 65% brushed 2 times/day • Child: 23% brushed 3 or more times/day • Adult: 60% brushed 2 times/day • Adult: 30% brushed 3 times/day • Use of Xylitol toothpaste at home • 9% of children did not use • 76% of childre used it half of the time • 42% of parents used the toothpaste • 35% of other family members used the toothpaste
Overall Positive Response • 40% of the respondents would purchase xylitol toothpaste. • 44% were not sure • 67% of respondents would allow their child to participate in future studies. • 30% said maybe • 80% of respondents wanted more information on xylitol.
Study Design • The observational group from 2007-2008 • Fluoride and xylitol toothpaste • Tooth brushing twice a day • Sent home xylitol toothpaste and tootbrushes • The historical control group data gathered from 2006-2007 class • Fluoride only toothpaste • Tooth brushing once a day
Sample Size • Small sample size limited scope of the study • The whole program participated (123 slots - 105 Head Start, 18 ECEAP) however only: • 41 children received 2 dental exams* during the 2006-2007 school year • 17 children received 2 dental exams* during the 2007-2008 school year *Excludes dental visits for follow-up treatment.
Results of the Project • Small sample size likely cause for lack of significant results, however trends indicate: • Less children in the xylitol-fluoride group had an increase in dental caries than fluoride only group. “dmft” = decayed, missing, filled teeth
Results Continued • Dental caries to increase in most children between .5 to .7 for each year of age. • Xylitol-fluoride toothpaste group showed less increase in dental caries (8%) from baseline than the fluoride only toothpaste group (34%).
Conclusions • Xylitol-fluoride toothpaste appears to enhance protection from dental caries. • It is feasible to integrate twice-daily tooth brushing into the program. • Families need to be encouraged to use xylitol at home. • Additional funds are needed for supplies (toothbrushes, toothpaste, sinks).
Future Study • NIH Grant, two years • One year of data collection • Xylitol-fluoride and Fluoride only • Twice-daily or once-daily • Classroom assistants to help with tooth brushing and data collection • New sinks and computers
Interested? Want more information? • Dr. Kiet Ly • Northwest Center to Reduce Oral Health DisparitiesUniversity of WashingtonHealth Sciences B-530Box 357480Seattle, WA 98195 kietaly@uw.edu • Liz Webb-Beeles • Kittitas County Head StartPO Box 835Ellensburg, WA 98926lwebb@kitcohs.org