ftp.stepware.com/ftp.stepware.com.tar/ftp.stepware.com/arpd.dmg/AceReader Pro Deluxe/DrillText/# Warm-up Drill Text/Diamond Edge (text).txt

Text File | 2003-08-11 | 4KB | 83 lines

                         Dental
                    cavities  have
               been                around
          for                           thousands
     of                                      years.
Fossilized                                        remains
     of                                      men
          and                           women
               from                the
                    Iron      Age
                         discovered
                    in        Warwickshire,
               England             showed
          a                             cavity
     rate                                    of
only                                              8%.
     When                                    today's
          Warwickshire                  inhabitants
               were                compared,
                    a         remarkable
                         high
                    cavity    rate
               of                  48%
          was                           found.
     A                                       modern
diet                                              consisting
     of                                      highly
          processed,                    sugar-containing
               foods               is
                    the       most
                         likely
                    culprit.  The
               problem             of
          dental                        cavities
     has                                     been
steadily                                          increasing
     for                                     the
          last                          four
               centuries.          It
                    continues to
                         the
                    present   day.
               Dental              cavities
          are                           an
     infection                               caused
by                                                a
     combination                             of
          carbohydrate-containing       foods
               and                 bacteria
                    that      live
                         in
                    our       mouths.
               The                 bacteria
          are                           contained
     in                                      a
film                                              that
     continuously                            forms
          on                            and
               around              our
                    teeth.    We
                         call
                    this      film
               plaque.             There
          are                           many
     different                               types
of                                                bacteria
     in                                      our
          mouths.                       Luckily,
               only                a
                    few       are
                         associated
                    with      cavities.
               When                these
          bacteria                      find
     carbohydrates,                          they
eat                                               them
     and                                     produce
          acid.                         The
               exposure            to
                    acid      causes
                         the