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Dentine - The soft dark inner core of a tooth. Lingual Crests - The sharp tall tooth edges on the tongue side of the jawbone. Buccal Crests - The short tooth ridges on the cheek side of the jawbone. Infundibulum - The dark depression between the buccal and lingual crests of the teeth.


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Deer are aged by examining the wear and replacement of the premolars and molars of the lower jaw. As a deer grows older, its teeth continue to wear. As the enamel begins to wear away, and exposes the dark dentine material, noticeable distinctions in tooth wear occur between each age class.


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By 17 to 19 months of age, deer have a full set of six teeth on each lower jaw, including the temporary premolars (now well worn). The third temporary premolar has three "cusps." Thus, a jawbone with six erupted teeth and a three-cusped premolar is a yearling. This premolar is eventually replaced by a two-cusped permanent tooth.


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In a three-part video series about aging white-tailed deer by the jawbone after harvest, QDMA CEO and wildlife biologist Brian Murphy examines the tooth repl.


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This will take a moderate amount of force. • Carefully cut the inner lip near the top of the jawbone between the front and back teeth. This step can be omitted if the deer will not be mounted by a taxidermist. • Insert the jawbone extractor between the jaw and the roof of the mouth to pry open the mouth as previously described.


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QDMA Director Of Conservation and Wildlife Biologist Kip Adams walks you through the process of aging a whitetail deer via jawbone. Aging deer can help you t.


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still a good idea to collect jawbones from every deer you harvest? Yes! You can confident-deer into three groups based on tooth replacement patterns alone: 1) fawns, 2) yearlings years old), and 3) adults 21⁄2 and older. After that, you can separate adults into young and adults based on tooth wear patterns.


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Deer primarily eat different types of plants and vegetation that grows on the ground, so they need sharp front teeth in order to easily rip the plants off the ground. Molars are responsible for grinding up food so the deer can swallow it more easily. These teeth are located towards the back of the jaw closer to the throat.


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Deer teeth have a dentine core covered by enamel. Dentine is dark and enamel is white, so as deer age they wear their teeth down and expose more dentine. The amount of exposed dentine on each molar allows us to estimate whether the deer is more likely 2½, 3½, and so on.


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Once a deer gets above five years old, the width of dentine will be at least twice as wide as the width of enamel on all three molars. Remember, sorting deer that are older than two and one-half years is subjective, and can depend on the experience of the person doing the sorting. The condition of the jaw may be influenced by the deer's diet.


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Making future herd management decisions is a lot easier when you know estimated ages of all the deer you harvested. Kip Adams shows you how to easily collect.


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Photo 1: Shoot straight in to the cheek side of the jawbone. This allows an ager to determine with nearly perfect accuracy whether the deer is less than one year (a fawn), 1.5 years, or at least 2.5 years old. If you are photographing a deer jawbone so the jawbone can be aged later based on the photos, be sure to take these two angles.


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There are two widely used techniques for aging white-tailed deer: (1) tooth replacement and wear and (2) cementum annuli. The tooth replacement and wear technique may be utilized in the field, whereas the cementum annuli technique requires the collection of teeth and laboratory analysis. Tooth Replacement and Wear versus Cementum Annuli


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When aging a deer, only examine the lower jaw bone. Be sure to keep in mind: a cusp is a point or projection on the chewing surface of a tooth the 1st three teeth are premolars. the last three teeth are molars. Dentine= brown "stripe" on top of teeth Four to five teeth present (premolars and molars); Figure AFawn (6 mo or less)