2215-3411 2215-3411 S2215-34112018000300033 10.15517/ijds.v0i0.32380 Costa Rica Costa Rica 00 12 2018 00 12 2018 20 3 33 42

1994 60 113-6 2004 10 212-6 2012 18 575-9. 2015 90 4 4 505-512. 2007 34 4 4 309-14 2012 66 2 2 173-86 2016 14 1 1 35-40 1999 88 181-6 2006 6 274-282. 1964 76 278-89. 2014 53 4 4 466-72 1994 7 32-8 2016 7 10 10 4210-9 2011 165 3 3 612-25. 1987 17 255-64. 2009 45 317-23 2003 131 1 1 60-6 1979 109 5 5 521-30 2006 72 767-71 2012 87 1 1 105-14 2008 1984 48 10 10 547-55 1999 25 2 2 125-30 1978 37 6 6 983-9 1994 30B 3 3 209-15 2001 33 2 2 167-71 1995 332 16 16 1052-7 2000 28 5 5 390-8 2004 40 10 10 992-9 2014 20 19-24 British Columbia Oral Cancer Prevention Program, BC Cancer Agency 2008 74 3 3 245-53