بررسی فراوانی بی دندانی در جمعیت بالای 35 سال شهرستان همدان آذر ماه 1376

Tooth   loss   especially   total  tooth loss or edectulousness , is the ultimate    failure ,  the  dental equivalent of death. Level of edectulousness is a good    indication of  populations  oro - dental  health.  Thus the   evaluation of  this    indicator  in  Hamadan   population   over  35 years  old in   Dec/ 1997  was    purpose  of  this  study.  Cluster random sampling was used in this study and    data was collected by questionnaire form.      The  results    showed   in  761   participants  in  this    study    52.04%     were    edentulousness,   42.18%  were partial tooth loss and 5.78% had retained all    28 teeth.      Edentulousness  rates  were  negatively  related  to  levels  of  income and     education and tooth brushing.      Although  the  edentulousness  rate  was  more  among  smokers,  but  this    difference was not statistically significant.