Table 2: Distances from DL orifice to other 3 orifices in 25 permanent three-rooted right and left mandibular first molars.

Teeth Distance (mm)
DLO-DBODLO-MBODLO-MLO

# 36 ( )
# 46 ( )

Total ( )

Distolingual orifice (DLO); distobuccal orifice (DBO); mesiobuccal orifice (MBO); mesiolingual orifice (MLO).