Root and Root Canal Morphology Classification Systems

Table 1

Examples of different tooth morphologies following Ahmed et al.’s classification.

Figure 4	Classification code	Description
a	^112^1	Maxillary right lateral incisor with a single root and a single root canal with one orifice and one apical foramen
b	^131^1−2-1-2	Mandibular right central incisor with a single root having one canal initially with one orifice which later divides into two canals and rejoins as one and later divides into two with two apical foramina
c	^132^1−2−1	Mandibular right lateral incisor with a single root initially starts as a single canal, and the orifice later divides into two canals and then rejoins as one canal with one foramen
d	^233B^1L^1	Mandibular left canine [33] with two roots, buccal and lingual, with two separate canals from the orifice with one foramen each
e	^233^1B^1L^1	Mandibular left canine with two roots, buccal and lingual, with two canals having a single coronal canal
f	^214B^1P ^1	Maxillary right first premolar with two roots buccal and palatal root with a single root canal in each.
g	^316MB^1DB ^1 P^1	Maxillary right first molar with three roots, mesiobuccal, distobuccal, and palatal, with each root having a single canal configuration
h	^347 M^2-1−2 DB^1 DL^1	Mandibular right second molar with three roots; mesial root starts as two canals, joins to form one, and further divides into two canals and distobuccal root with single canal each