| Radiographic examination revealed an irregular radiolucency in the mandible symphyseal region between the right and left premolars. |
| Thylacoleo are highly specialized brachycephalic predators with greatly hypotrophied molar rows and hypertrophied sectorial third premolars. |
| The teeth most often missing are the third molars, second premolars, and maxillary lateral incisors, and other teeth may be reduced in size. |
| These taxa are subdivided generally on the basis of robustness of the premolars. |
| We recognize four basic kinds of teeth in an individual's jaw, the incisors, canines, premolars, and molars. |
| In the mandible, there are four incisors, two canines, four premolars, and six molars. |
