Advanced Dental Admission Test (ADAT)

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Advanced Dental Admission Test. Study with flashcards and multiple choice questions, with hints and explanations provided for each question. Strengthen your readiness for success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What characterizes mediotrusive motion of the mandible?

Contact between maxillary and mandibular incisors
Contact between lingual aspects of maxillary posterior teeth and buccal of mandibular posterior teeth
Disruption due to abnormal contacts on the working side
Contact between the buccal of maxillary teeth and the lingual of mandibular teeth

The correct answer is: Contact between the buccal of maxillary teeth and the lingual of mandibular teeth

Mediotrusive motion of the mandible occurs during lateral movements, particularly when the mandible moves towards the midline. This motion is characterized by the contact between the buccal surfaces of the maxillary teeth and the lingual surfaces of the mandibular teeth. In this movement, the working side refers to the side of the face where the posterior teeth are engaged in the chewing action, while the non-working side experiences the movement towards the midline. In this scenario, the contact between the buccal surfaces of the maxillary teeth and lingual surfaces of the mandibular teeth is crucial because it allows for proper function during the mediotrusive movement. Such a relationship helps maintain stability and balance in occlusion while facilitating efficient mastication. Overall, this contact is essential to understand the mechanics of lateral excursions and the nuances of dental occlusion.