OBJECTIVETo find out the morphological regularity of root canal in the primary tooth.

METHODSThrough transparent specimen of a set of deciduous teeth, the shape of root canal was observed under stereomicroscope.

RESULTSAmong the deciduous anterior teeth, 92% were single canal except for one single-double mixed canal. Maxillary deci-duous molar had 3 canals and mandibular deciduous molar had 4 canals, lateral canal and anastomosis between the root canals were popular in deciduous molar.

CONCLUSIONDeciduous root canal morphology is simple in anterior teeth and comparatively complex in molar.

Dental Pulp Cavity ; Humans ; Mandible ; Maxilla ; Molar ; Root Canal Therapy ; Tooth Root ; Tooth, Deciduous