Be. Wayman et al., RELATIVE FREQUENCY OF TEETH NEEDING ENDODONTIC TREATMENT IN 3350 CONSECUTIVE ENDODONTIC PATIENTS, Journal of endodontics, 20(8), 1994, pp. 399-401
A survey covering 8 years and 3350 consecutive endodontic patients (19
58 men (58%) and 1392 women (42%)) was conducted to determine the freq
uency of endodontic treatment for each tooth. At the time of initial e
xamination, 3672 teeth required root canal therapy. Three hundred twen
ty-two patients needed endodontic therapy on multiple teeth. Posterior
teeth were most frequently treated, 80.1% of the total with molars re
quiring 52.6% of the needed endodontic treatment. The mandibular first
molar was treated most often, 18.8% of the time, followed by the maxi
llary first molar (13.5%) and the mandibular second molar (12.0%). The
number of endodontically treated maxillary and mandibular teeth was s
imilar, 50.8% and 49.2%, respectively.