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Dental Formula - Horse (view source)
Revision as of 14:30, 3 September 2010
, 14:30, 3 September 2010Created page with "===The Horse=== thumb|right|150px|Tooth identifation in the horse- copyright Academy of Equine Dentistry-2008 '''Dental Formula''' 2 (I3/3 C0/0 P3/3) ..."
===The Horse===
[[Image:Horse teeth.jpg|thumb|right|150px|Tooth identifation in the horse- copyright Academy of Equine Dentistry-2008]]
'''Dental Formula'''
2 (I3/3 C0/0 P3/3) Deciduous
2 (I3/3 C1/1 P3-4/3 M3/3) Permanent
'''Canines'''
*Rudimentary
*In diastema
*Size of [[Root - Anatomy & Physiology|root]] is proportionally larger than [[Crown|crown]]
'''Molars'''
[[Image:Horse Tooth.jpg|thumb|right|150px|Horse tooth - Copyright Malcom Morley]]
*Surfaces enlarged
*Higher [[Crown|crowns]]
*Delayed [[Root - Anatomy & Physiology|root]] development
*Complicated folding of [[Enamel|enamel]]
'''Incisors'''
*High [[Crown|crowns]]
*Folded [[Enamel|enamel]] surfaces
*[[Root - Anatomy & Physiology|Roots]] converge
'''Premolars'''
*Wolf tooth (PM1) often lacking
*Molars and Premolars form a continuous surface
*High rate of wear
*Continually erupt
*Upper teeth wider than lower
*No infundibulum in lower teeth
'''Ageing'''
*Horses can be aged by their teeth
*At 2 and a half the first permanent incisor will erupt
*At 3 and a half the second permanent incisor will erupt
*At 4 and a half the third permanent incisor will erupt
*Over 5 years of age the folding of the enamel ring (infundibulum) can indicate age
*7 year hook
*Over 13 years of age a dental star will be present
*The Galvayne's Groove is a brown groove on the upper corner incisor teeth and indicates that the horse is over 10 years old
**At 15 the groove will be approximately half way down the tooth
**At 20 the groove will run down the whole tooth
**Over 20 the grove begins to disappear
**At 25 the groove will only be visible on the bottom half of the tooth
**At 30 the groove will usually be gone
[[Category:Teeth - Anatomy & Physiology]]
[[Category:Horse - Alimentary System]]
[[Image:Horse teeth.jpg|thumb|right|150px|Tooth identifation in the horse- copyright Academy of Equine Dentistry-2008]]
'''Dental Formula'''
2 (I3/3 C0/0 P3/3) Deciduous
2 (I3/3 C1/1 P3-4/3 M3/3) Permanent
'''Canines'''
*Rudimentary
*In diastema
*Size of [[Root - Anatomy & Physiology|root]] is proportionally larger than [[Crown|crown]]
'''Molars'''
[[Image:Horse Tooth.jpg|thumb|right|150px|Horse tooth - Copyright Malcom Morley]]
*Surfaces enlarged
*Higher [[Crown|crowns]]
*Delayed [[Root - Anatomy & Physiology|root]] development
*Complicated folding of [[Enamel|enamel]]
'''Incisors'''
*High [[Crown|crowns]]
*Folded [[Enamel|enamel]] surfaces
*[[Root - Anatomy & Physiology|Roots]] converge
'''Premolars'''
*Wolf tooth (PM1) often lacking
*Molars and Premolars form a continuous surface
*High rate of wear
*Continually erupt
*Upper teeth wider than lower
*No infundibulum in lower teeth
'''Ageing'''
*Horses can be aged by their teeth
*At 2 and a half the first permanent incisor will erupt
*At 3 and a half the second permanent incisor will erupt
*At 4 and a half the third permanent incisor will erupt
*Over 5 years of age the folding of the enamel ring (infundibulum) can indicate age
*7 year hook
*Over 13 years of age a dental star will be present
*The Galvayne's Groove is a brown groove on the upper corner incisor teeth and indicates that the horse is over 10 years old
**At 15 the groove will be approximately half way down the tooth
**At 20 the groove will run down the whole tooth
**Over 20 the grove begins to disappear
**At 25 the groove will only be visible on the bottom half of the tooth
**At 30 the groove will usually be gone
[[Category:Teeth - Anatomy & Physiology]]
[[Category:Horse - Alimentary System]]