Equine pulp horn numbering system Flashcards
According to Marshall R, Shaw DJ, Dixon PM.
in
A study of sub-occlusal secondary dentine thickness in overgrown equine cheek teeth. The Veterinary Journal. 2012;193(1):53-57.
Is this a maxillary or mandibular tooth and which number?
Number the pulp horns.
Mandibular 06
According to Marshall R, Shaw DJ, Dixon PM.
in
A study of sub-occlusal secondary dentine thickness in overgrown equine cheek teeth. The Veterinary Journal. 2012;193(1):53-57.
This tooth is an 09. is it maxillary or mandibular? How do you know? number the pulp horns
mandibular. No infundibulae, no cingulae.
According to Marshall R, Shaw DJ, Dixon PM.
in
A study of sub-occlusal secondary dentine thickness in overgrown equine cheek teeth. The Veterinary Journal. 2012;193(1):53-57.
This is a mandibular 11. How many pulp horns are there?
Number them.
6 pulp horns (no horn 6, skip 5 to 7)
According to Marshall R, Shaw DJ, Dixon PM.
in
A study of sub-occlusal secondary dentine thickness in overgrown equine cheek teeth. The Veterinary Journal. 2012;193(1):53-57.
This tooth is an 06. is it maxillary or mandibular? Number the pulp horns
Maxillary - has infundibulae and has cingulae
According to Marshall R, Shaw DJ, Dixon PM.
in
A study of sub-occlusal secondary dentine thickness in overgrown equine cheek teeth. The Veterinary Journal. 2012;193(1):53-57.
This is a maxillary 09. What are the two unlabelled black spots in the centre of the tooth? what disease process occurs here?
number the pulp horns
black spots are centre of infundibulae, where arteries supply cementum with blood during development. Infundibular caries can occur here
According to Marshall R, Shaw DJ, Dixon PM.
in
A study of sub-occlusal secondary dentine thickness in overgrown equine cheek teeth. The Veterinary Journal. 2012;193(1):53-57.
Is this a maxillary or mandibular tooth? What number?
Number the pulp horns
maxillary 11. you can tell because there are 7 pulp horns, and no other tooth has that. number goes up to 8, but there is no 6 (only on 06’s is there a 6)
According to Marshall R, Shaw DJ, Dixon PM.
in
A study of sub-occlusal secondary dentine thickness in overgrown equine cheek teeth. The Veterinary Journal. 2012;193(1):53-57.
Here is the pulp horn numbering system:
Here it is again!
Here are some tricks -
- mandibular teeth have a single continuously running line of enamel with no infundibulae
- Maxillary teeth have 2 infundibulae each, which are additional ‘irregular loops’ of enamel in the middle of the tooth, usually pictured with a little black spot in the middle (this is not a pulp horn.)
- We usually number the buccal pulp horns first, from front to back (1 and 2) Then the palatal/labial horns, also front to back. on mandibular teeth, 3, 4, 5 are in a line, front to back. On maxillary teeth, horn 5 is the palatal-most (between 3 and 4)
- only 06’s have a horn 6, it is at the ‘rostral most point of the tooth’
- maxillary 11’s have 2 small pulp horns at the very back, 7 and 8 (they have no 6) for a total of 7 pulp horns
mandibular 11’s have a horn 7 at the very back, for a total of 6 pulp horns (again no 6)
My best bet: Memorize the basic pattern for a maxillary and mandibular 09. for all 06’s add a pulp horn 6 at the most mesial extent. For a maxillary 11, add a 7 bucally and an 8 palatally For mandibular 11’s add a 7 at the most distal extent.
Sigh.
