The skeleton of an adult Columbian mammoth, mired in California's La Brea tar pits for some 40,000 years, bears tusks more than 11 feet long from tooth socket to tip. (discovermagazine.com)
Periodontal disease starts as gingivitis caused by plaque and often progresses to involve the bony tooth sockets. (soonervet.net)
As opposed to mammal teeth that are rooted into tooth sockets by ligaments, bearded dragon teeth are directly rooted into their jawbones, predisposing them to bone inflammation and infection. (avianexoticsvet.com)