HOSA Dental Terminology Practice

Which dental arch is referred to as the maxillary arch?

1. Upper dental arch

2. Lower dental arch

3. Arch containing the molars

4. Arch consisting of only incisors

The correct answer is: Upper dental arch

The maxillary arch is correctly referred to as the upper dental arch because it comprises the upper jaw or the portion of the mouth that houses the upper teeth, including the incisors, canines, premolars, and molars. This arch is critical in dental anatomy as it plays a significant role in occlusion, aesthetics, and oral function. In contrast, the lower dental arch contains the mandibular teeth and is not described as the maxillary arch. Other options like the arch containing the molars or the arch consisting of only incisors do not accurately define the maxillary arch, as it encompasses a broader range of teeth beyond just the molars or incisors.