More than 70% of participants were knowledgeable about
terms such as “electric toothbrush,” “dental calculus,” and
“periodontal disease” (Fig. 1). They demonstrated a relatively
high knowledge of the fact that “periodontal disease
can be prevented by self-care.” On the other hand, very
few participants knew the term “denture plaque,” and only
about 15% of participants knew the term “scaling.” Less
than half of the participants believed “smoking is related to
periodontal disease.”