Dental Formula - Dog
Overview
Dogs are toothless at birth. The 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.
Formula for deciduous teeth: 2 (i3/3 c1/1 p3/3)
Formula for permanent teeth: 2 (I3/3 C1/1 P4/4 M2/3)
Canine Teeth
The canine teeth are large, curved and laterally compressed. Their root is longer than their crown. They have a single root. They each have a single root.
Incisors
Incisors have a single root.
Premolars
Premolars are irregular and closely-spaced. They are more complex and larger caudally. The first maxillary premolar has a single root, the second and third maxillary premolar have two roots and the fourth maxillary premolar (carnasial tooth) has three roots.
Molars
The molars are broader than the premolars. The large flat surface is used for grinding. The maxillary molars have three roots each.
Breed Differences
Eruption times differ between breeds so it is difficult to age dogs by their teeth.
| Dental Formula - Dog Learning Resources | |
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 Anatomy Museum Resources |
Image - Canine Dentition |
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This article was expert reviewed by Lisa Milella BVSc DipEVDC MRCVS. Date reviewed: 9 September 2014 |
| Endorsed by WALTHAM®, a leading authority in companion animal nutrition and wellbeing for over 50 years and the science institute for Mars Petcare. | 
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