canine
DESCRIPTION
canineTRANSCRIPT
PERMANENT MAXILLARY CANINE (13, 23) PERMANENT MANDIBULAR CANINE (33, 43)
DIAGRAM
ERUPTION 11-12 years old (after mandibular canines, maxillary
incisors, maxillary premolars)9-10 years old ( before maxillary canine and after incisors)
ROOT COMPLETION 13-15 years old 12-14 years oldSPECIFIC CROWN
FEATURES Crown is similar in length or shorter than
maxillary central incisor Wider LL than central incisor, but narrower
MD Crown outline is asymmetrical ( mesial part
has greater LL bulk) Cusp - more developed and larger than
mandibular canine - tip is shaper
Resembles maxillary canine Narrower LL and MD than max canine Cusp – single, had two cusp ridges (thinner LL) Lingual – smooth, less-developed cingulum , two
marginal ridges
LABIAL VIEW
Mesial resembles part of incisor, distal
resembles part of premolar Distal outline shorter than mesial outline
Rounder than mandibular incisor, but not as rounded as max canine
Distal outline shorter than mesial outline
LINGUAL VIEW Lingual view – more prominent ( has prominent proximal marginal ridge)
Lingual ridge – vertical, central - from cingulum to cusp tip
Lingual fossae – two, shallow but visible (ML&DL)
Mesial & distal aspect present triangular outline
Resemble maxillary incisors but more robust especially in cingulum region
Crown is slightly shorter / as long as mandibular canine Relatively smooth
Faintly demarcated feature:-lingual & proximal ridge-two lingual fossa (DL & ML)
INCISAL VIEW
Large LL width (making it extremely strong
tooth during mastication) Crown outline is asymmetrical (mesial part has
greater LL bulk) Distal part appears thinner Mesial half quite rounded, distal half
frequently concave (for in lingual side, it’s because distal fossa is deeper)
Slightly more symmetrical than max canine
MESIAL VIEW Cusp tip is toward labial Triangular shape, pointed cusp on crownDISTAL VIEW CEJ curvature is less CEJ curved less
DISTINGUSHING RIGHT FROM LEFT
Distal outline is shorter than mesial outline Has depression between distal contact area and
CEJ Mesial & distal contact are on two different
levels of the tooth Mesial cusp slope is shorter than distal cusp
slope when first erupted CEJ curves higher incisally on mesial surface
Distal outline is shorter than mesial outline Mesial & distal contact are on different levels Mesial cusp slope is shorter than distal cusp slope CEJ curve more towards the incisal on mesial
surface
ROOT FEATURES Single long root, longest in maxillary arch Blunt apex Pulp cavity – one pulp canal, a large pulp
chamber, one pulp horn
Single long rootLongest mandibular root, but shorter than maxillary
caninePulp cavity – one pulp canal, a large pulp chamber, one
pulp horn