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Table 4 Frequency distribution of teeth types by risk groups at baseline, and their periapical disease severity status after 2 years (yrs), (total n = 176)

From: Prognostic validity of the Periapical and Endodontic Status Scale for the radiographically assessed 2-year treatment outcomes in teeth with apical periodontitis: a prospective clinical study

  Low risk group Moderate risk group High risk group
Baseline After 2 yrs Baseline After 2 yrs Baseline After 2 yrs
Incisors/Canines 38 39 2 2 3 2
Premolars 38 46 11 3 - -
Molars 64 72 19 10 1 2
Total 140 157 32 15 4 4