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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>]]
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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.
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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.
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The formula for '''deciduous''' teeth: 2 (I3/3 C1/1 P3/3)   
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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)   
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===Canines===
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===Canine teeth===
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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]].
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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]]
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===Molars===
 
===Molars===
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The molars are broader than the premolars. The number of cusps is similar in all breeds, usually two or three.
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The molars are broader than the premolars. The large flat surface is used for grinding.
 
   
===Incisors===
 
===Incisors===
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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]].
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The incisors are '''tricuspid''' in the upper jaw and '''bicuspid''' in lower jaw. They have a single [[Enamel Organ#Root|root]].
    
===Premolars===
 
===Premolars===
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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]].
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The premolars are irregular and closely-spaced. They are more complex and larger caudally.
 
      
==Breed Differences==
 
==Breed Differences==
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