Ivory Cavitites

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Sep 7, 2018
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The bull I harvested this year had cavitites in both his ivories and his other teeth were deeply stained and black on the sides, this made me very curious about age and diet. I did some searching on google but couldnt come up with anything pertaining to cavitites in elk teeth. Has anyone else seen this? Any biologists on here??
 

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Wild! The one I shot this year had loose teeth. Maybe he was going and getting his adult teeth?


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Biologist here. So what you’re seeing isn’t necessarily a cavity in the sense we humans apply the term cavity. That’s actually just wear over time where the pulp has been exposed and is decaying and eroding. Ouch, right? It’s well documented in the literature that elk canine teeth (ivories) wear through the years, and that wear can be diagnostic with age. Area soil composition and food sources can change wear patterns, but one can make some generalities of age based on wear. I’d say looking at those canines it’s certainly no younger than 8 years. Pulp generally becomes visible around 8 years. Based on your photos, the pulp being visible, combined with the amount of crown compared to gumline and DLCL makes me think probably around 8-10 years old.
 
Biologist here. So what you’re seeing isn’t necessarily a cavity in the sense we humans apply the term cavity. That’s actually just wear over time where the pulp has been exposed and is decaying and eroding. Ouch, right? It’s well documented in the literature that elk canine teeth (ivories) wear through the years, and that wear can be diagnostic with age. Area soil composition and food sources can change wear patterns, but one can make some generalities of age based on wear. I’d say looking at those canines it’s certainly no younger than 8 years. Pulp generally becomes visible around 8 years. Based on your photos, the pulp being visible, combined with the amount of crown compared to gumline and DLCL makes me think probably around 8-10 years old.
That's crazy, this bull was from Co public lands too. Big bodied and dark but his rack wasnt huge. Decent 5x5, never expected to hear that he could be that old. Thanks for the info!
 
That's crazy, this bull was from Co public lands too. Big bodied and dark but his rack wasnt huge. Decent 5x5, never expected to hear that he could be that old. Thanks for the info!

Lots at play there, between antler size and points, body size, and tooth wear, that all can help point to an approximate age class. I never rely solely on canine wear as I always look at the teeth on the lower jaw too. As elk age and pass their prime, antler size will begin to drop if they live long enough. Although you usually don’t see that until much later on. Antler size is also dependent on the quality of food and amount of stress the cow had consumed or was exposed to when that bull was in the womb, more so than after that bull hit the ground and the years after that. Additionally, where soils are very sandy and gritty, elk will be consuming portions of that daily with their diet. That’ll change wear patterns enough to really skew tooth wear patterns. In those instances, sectioning a tooth is required to get the accurate age of the animal. I’m not familiar with the area you killed that bull, so take all of what I’m saying as being a generality and not gospel! Congrats on the harvest. If those canines are worn due to age, that’s pretty neat as few hunters get to see that in most areas because us hunters do a tremendous job killing mature bulls. And rightfully so!
 
Lots at play there, between antler size and points, body size, and tooth wear, that all can help point to an approximate age class. I never rely solely on canine wear as I always look at the teeth on the lower jaw too. As elk age and pass their prime, antler size will begin to drop if they live long enough. Although you usually don’t see that until much later on. Antler size is also dependent on the quality of food and amount of stress the cow had consumed or was exposed to when that bull was in the womb, more so than after that bull hit the ground and the years after that. Additionally, where soils are very sandy and gritty, elk will be consuming portions of that daily with their diet. That’ll change wear patterns enough to really skew tooth wear patterns. In those instances, sectioning a tooth is required to get the accurate age of the animal. I’m not familiar with the area you killed that bull, so take all of what I’m saying as being a generality and not gospel! Congrats on the harvest. If those canines are worn due to age, that’s pretty neat as few hunters get to see that in most areas because us hunters do a tremendous job killing mature bulls. And rightfully so!
Thanks for passing that knowledge on, good stuff to know.
 
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