Term
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Definition
| the pattern of deciduous and permanent incisor eruption is the most accurate gauge of animal age |
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Term
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Definition
| Infundibulum, a dark hole that is at the top of the tooth when it first erupts, but gradually wears away and disappears at predictable intervals |
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Term
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Definition
| Pulp cavity that becomes exposed as the tooth wears, their appearance follows the disappearance of the cups |
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Term
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Definition
| hook on the posterior aspect of the upper lateral PI3 at 7 yrs, disappears in a couple years and then reappears at 12-15 yrs, then disappears again in a couple years |
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Term
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Definition
| a superficial groove that appears on the lateral aspect of the upper PI3. Begins at gum margin at 10 yrs, halfway down by 15 yrs, all the way down at 20 yrs, recedes halfway down by 25 yrs, and disappears completely at 30 yrs |
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Term
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Definition
| profile view of the incisors, begin upright in a young animal and slant forward with age |
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Term
| Eruption of Deciduous Incisors (Equine) |
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Definition
DI1 - 8 days
DI2 - 8 wks
DI3 - 8 mos |
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Term
| Eruption of Adult Incisors (Equine) |
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Definition
PI1 - 1 yr
PI2 - 2 yrs
PI3 - 3 yrs |
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Term
| Eruption of adult canines (Equine) |
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Definition
| 4.5 - 5.5 yrs (No deciduous canines) |
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Term
| Cups Disappear in Lower Incisors |
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Definition
PI1 - 6 yrs
PI2 - 7 yrs
PI3 - 8 yrs |
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Term
| Cups Disappear in Upper Incisors |
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Definition
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Term
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Definition
PI1 - 8 yrs
PI2 - 9 yrs
PI3 - 10 yrs |
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Term
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Definition
| Overbite - hooks on maxillary PM2 (106, 206) and mandibular M3 (311, 411) |
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Term
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Definition
| Underbite - Hooks on mandibular PM2 (306, 406)and maxillary M3 (111, 211) |
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Term
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Definition
| Filing of the cheek teeth, usually done once a year |
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Term
| Eruption of Deciduous Incisors (Bovine) |
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Definition
DI1 - @ birth
DI2 - @ birth
DI3 - 1 wk
DC(DI4) - 2 wks |
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Term
| Eruption of permanent incisors (Bovine) |
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Definition
PI1 - 1 yr
PI2 - 2 yrs
PI3 - 3 yrs
PC (PI4) - 4 yrs |
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Term
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Definition
5 yrs - occlusal surface becoming level
6 yrs - PI1 level and neck visible
7 yrs - PI2 level and neck visible
8 yrs - PI3 level and neck visible |
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Term
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Definition
| >10 yrs, all 3 incisors worn down |
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Term
| Eruption of Deciduous Incisors (Ovine/Caprine) |
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Definition
DI1 - one week
DI2 - two weeks
DI3 - three weeks
DC (DI4) - four weeks |
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Term
| Eruption of Permanent Incisors (Ovine/Caprine) |
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Definition
PI1 - 1 - 1.5 yr
PI2 - 1.5 - 2 yrs
PI3 - 2.5 - 3 yrs
PC - 3-4 yrs |
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Term
| Eruption of Deciduous Teeth (Swine) |
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Definition
DI3 - Present at Birth
DC - Present at Birth
DI1 - 2-4 wks
DI2 - 6-12 wks |
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Term
| Eruption of Permanent Teeth (Swine) |
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Definition
PC - 6-10 mo
PI3 - 8-10 mo
PI1 - 1 yr
PI2 - 1.5 yr |
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