Which of the following are the only teeth in the permanent dentition to have a labial ridge?

The tooth designation system commonly used in orthodontics is:

Which of the following surfaces is the masticatory surface for anterior teeth?

The shedding of the last primary tooth, usually the maxillary second molar, begins which dentition period?

The permanent mandibular central incisors usually erupt between ____________ years old.

The division of each dental arch into three portions based on the relationship to the midline is termed:

Generally, how long after a permanent tooth erupts does it take for root completion to occur?

Which of the following ridges of tissue are located on the floor of the mouth?

DTHY 314 Visual Exam 1 Picture 3 #39-44.PNG

Rounded enamel extensions on the incisal ridge from the labial or lingual views.