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[[Image:Aspinall Slide12.JPG|thumb|right|300px|<small>Image from [http://www.elsevierhealth.co.uk/veterinary-nursing/spe-60136/ Aspinall, The Complete Textbook of Veterinary Nursing], Elsevier Health Sciences, ''All rights reserved''</small>]]
[[Image:Aspinall Slide12.JPG|thumb|right|300px|<small>Image from [http://www.elsevierhealth.co.uk/veterinary-nursing/spe-60136/ Aspinall, The Complete Textbook of Veterinary Nursing], Elsevier Health Sciences, ''All rights reserved''</small>]]
Dogs are toothless at birth. Their '''deciduous''' teeth are complete and functional within 2 months of birth. '''Permanent''' teeth are complete and funtional by the end of the 6th or 7th month.
Dogs are toothless at birth. Their '''deciduous''' teeth are complete and functional within 2 months of birth in most breeds. '''Permanent''' teeth are complete and funtional by the end of the 7th month.
The formula for '''deciduous''' teeth: 2 (I3/3 C1/1 P3/3)
The formula for '''deciduous''' teeth: 2 (i3/3 c1/1 p3/3)
The formula for '''permanent''' teeth: 2 (I3/3 C1/1 P4/4 M2/3)
The formula for '''permanent''' teeth: 2 (I3/3 C1/1 P4/4 M2/3)
===Canines===
===Canine teeth===
The canines are large, curved and laterally compressed. Their [[Enamel Organ#Root|root]] is longer than their [[Enamel Organ#Crown|crown]]. They have a single [[Enamel Organ#Root|root]].
The canine teeth are large, curved and laterally compressed. Their [[Enamel Organ#Root|root]] is longer than their [[Enamel Organ#Crown|crown]]. They have a single [[Enamel Organ#Root|root]].
[[Image:Dog Dentition.jpg|thumb|right|300px|Dog Dentition - Copyright Nottingham 2008]]
[[Image:Dog Dentition.jpg|thumb|right|300px|Dog Dentition - Copyright Nottingham 2008]]
===Molars===
===Molars===
The molars are broader than the premolars. The number of cusps is similar in all breeds, usually two or three.
The molars are broader than the premolars. The large flat surface is used for grinding.
===Incisors===
===Incisors===
The incisors are '''tricuspid''' in the upper jaw and '''bicuspid''' in lower jaw. They are smaller rostrally and have a single [[Enamel Organ#Root|root]].
The incisors are '''tricuspid''' in the upper jaw and '''bicuspid''' in lower jaw. They have a single [[Enamel Organ#Root|root]].
===Premolars===
===Premolars===
The premolars are irregular and closely-spaced. They are more complex and larger caudally. They have a discontinuous cutting edge on [[Enamel Organ#Crown|crowns]].
The premolars are irregular and closely-spaced. They are more complex and larger caudally.
==Breed Differences==
==Breed Differences==