Evaluation of calculus accumulation in tube-fed, mentally handicapped patients: the effects of oral hygiene status.
A group of fifteen tube-fed mentally handicapped subjects were compared with a similar group of fifteen nontube-fed subjects to determine the rate of calculus formation during a 60-day period of intensive oral hygiene care. The findings indicate that calculus formation is significantly more rapid in the tube-fed group, although the oral hygiene levels of the tube-fed group were superior. Nearly half (48%) of this calculus accumulated within the first 3 weeks. The calculus accumulation for both groups was lower than that indicated in a previous study where oral hygiene was poor.