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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. 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.
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 functional by the end of the 7th month.
Formula for '''permanent''' teeth: 2 (I3/3 C1/1 P4/4 M2/3)
Formula for '''permanent''' teeth: 2 (I3/3 C1/1 P4/4 M2/3)
===Incisors===
Dogs have six incisors in the maxilla and six in the mandible. Incisors have a single [[Tooth - Anatomy & Physiology#Root|root]].
===Canine Teeth===
The canine teeth are large, curved and laterally compressed. Their [[Tooth - Anatomy & Physiology#Root|root]] is longer than their [[Tooth - Anatomy & Physiology#Crown|crown]]. They have a single [[Tooth - Anatomy & Physiology#Root|root]]. They each have a single root.
The canine teeth are large, curved and laterally compressed. Their [[Tooth - Anatomy & Physiology#Root|root]] is longer than their [[Tooth - Anatomy & Physiology#Crown|crown]]. They have a single [[Tooth - Anatomy & Physiology#Root|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.
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.
The molars are broader than the premolars. The large flat surface is used for grinding. The maxillary molars have three roots each.