54 ANIMAL DENTISTRY. 



Lateral Incisors — Erupt at four months and are shed at 

 three years. 



Corner Incisors — Erupt at birth and are shed at six 

 months. 



Canines — Erupt at birth and are shed at one year (The 

 temporary canines of the pig are common to botli sexes, but 

 are more prominent in the male). 



First Molar — The first molar of the hog has no temporary 

 predecessor. 



Second and Third Molars — Erupt at birth and are shed 

 at two years. 



Fourth Molar — Erupts at six months and is shed at two 

 years. 



THE DOG. 



Central Incisors — Erupt at four weeks and are shed at 

 four months. 



Lateral Incisors — Erupt at four weeks and are shed at 

 four months. 



Corner Incisors — Erupt at four weeks and are shed at 

 five months. 



(The incisor teeth do not come in contact with one an- 

 other until the age of fifteen months). 



Canines — Erupt at four weeks and are shed at six months. 

 They are common to both sexes. 



First Molar — There is no temporary first molar in the 

 dog. 



Second, third and fourth molars erupt at five to six weeks 

 and shed at six months. The fourth may be delayed until 

 six and one-half to seven months. 



At the age of seven months the temporary denture of 

 the dog is entirely replaced by its permanent successor. 



