Orthodontic Terminology Quiz

<p>Imbrication (C)</p> Signup and view all the answers

<p>Insufficient space for all teeth to fit normally within the jaws. (D)</p> Signup and view all the answers

<p>Labial inclination (B)</p> Signup and view all the answers

<p>A tooth that appears to have over-erupted. (C)</p> Signup and view all the answers

<p>Two teeth exchanging positions during development. (D)</p> Signup and view all the answers

<p>Prognathism (A)</p> Signup and view all the answers

<p>Class II (B)</p> Signup and view all the answers

<p>Skeletal crossbite (B)</p> Signup and view all the answers

<p>Class II (C)</p> Signup and view all the answers

<p>Lischer's Modification (B)</p> Signup and view all the answers

<p>Proclined or labioversion of maxillary incisors (C)</p> Signup and view all the answers

<p>Lingual inclination of the maxillary incisors (C)</p> Signup and view all the answers

<p>Class I (D)</p> Signup and view all the answers

<p>Considers molar relationships in all cases (B)</p> Signup and view all the answers

<p>Skeletal malocclusion (A)</p> Signup and view all the answers

<p>Retrognathism (C)</p> Signup and view all the answers

<p>Buccal placement of a tooth or group of teeth (B)</p> Signup and view all the answers

<p>Class III (D)</p> Signup and view all the answers

<p>It does not consider individual tooth malposition. (C)</p> Signup and view all the answers

<p>Posterior cross bite (B)</p> Signup and view all the answers

<p>Tooth placed mesially to normal occlusion (D)</p> Signup and view all the answers

<p>Upper central incisors are proclined or of average inclination (D)</p> Signup and view all the answers

<p>Class III (C)</p> Signup and view all the answers

<p>Attraction (B)</p> Signup and view all the answers

<p>Class II (B)</p> Signup and view all the answers

<p>Protraction (C)</p> Signup and view all the answers

<p>Minimal or increased overjet (D)</p> Signup and view all the answers

<p>Dental arch farther from mid-saggital plane (B)</p> Signup and view all the answers

<p>Skeletal malocclusion (B)</p> Signup and view all the answers

<p>To form the socket for the teeth (D)</p> Signup and view all the answers

<p>Abnormal relation of teeth in the dental arches (B)</p> Signup and view all the answers

<p>Simple malocclusion (C)</p> Signup and view all the answers

<p>Mesial displacement (A)</p> Signup and view all the answers

<p>Transverse problems (C)</p> Signup and view all the answers

<p>Tooth positioned below the normal occlusion level (B)</p> Signup and view all the answers

<p>Prematars (B)</p> Signup and view all the answers

<p>Labioversion (C)</p> Signup and view all the answers

<p>Proclined upper central incisors with significant overjet. (C)</p> Signup and view all the answers

<p>It fails to address skeletal problems properly. (D)</p> Signup and view all the answers

<p>Class III. (C)</p> Signup and view all the answers

<p>Normal molar relationship on one side only. (B)</p> Signup and view all the answers

<p>It is easy to communicate and widely used for teaching. (D)</p> Signup and view all the answers

<p>Skeletal relationships. (D)</p> Signup and view all the answers

<p>The mandible slides forward from its resting position. (C)</p> Signup and view all the answers

<p>It is characterized by malposed teeth despite normocclusion. (B)</p> Signup and view all the answers

The curved arrangement of teeth in the upper and lower jaws.

The bone that surrounds and supports the roots of the teeth.

All parts of the mandible and maxilla except the alveolar processes.

A condition where the teeth are not positioned normally in the dental arches.

A malocclusion affecting a single tooth or group of teeth within the same arch.

A malocclusion affecting the relationship between the upper and lower arches.

A tooth that is displaced forward towards the midline of the arch.

A tooth that is displaced backward away from the midline of the arch.

A tooth tilted away from the midline of the dental arch, where its crown is further from the center.

A tooth tilted towards the midline of the dental arch, where its crown is closer to the center.

A tooth tilted towards the tongue.

A tooth moved bodily towards the tongue.

A tooth tilted outward towards the lips. Also known as proclination.

A tooth moved bodily outwards towards the lips or cheeks.

A tooth that hasn't erupted to the same level as the other teeth in the arch.

A tooth that has erupted higher than the other teeth in the arch.

A classification system based on the relationship between the mesiobuccal cusp of the maxillary first molar and the buccal groove of the mandibular first molar.

The mesiobuccal cusp of the maxillary first molar occludes with the mesiobuccal groove of the mandibular first molar, but the line of occlusion is incorrect due to malposed teeth, rotations, or other discrepancies.

The mesiobuccal cusp of the maxillary first molar sits in front of the mesiobuccal groove of the mandibular first molar, causing an increased overjet.

Class II malocclusion with proclined upper central incisors.

Class II malocclusion with retroclined upper central incisors, and upper lateral incisors that may be proclined or normally inclined.

The mesiobuccal cusp of the mandibular first molar occludes mesial to the Class I position.

A condition where the mandible moves forward from rest position to occlusion, creating a pseudo Class III position.

Angle's classification only considers the antero-posterior plane, ignoring malocclusion in the transverse and vertical planes.

Angle's classification can't be used if the first permanent molars are missing or extracted.

Angle's classification doesn't apply to baby teeth (deciduous dentition).

Angle's classification only looks at the position of the teeth, not the underlying skeletal structure.

Angle's classification doesn't explain why malocclusions happen.

Angle's classification doesn't consider the position of individual teeth within the arch.

A modification of Angle's classification, Dewey divided Class I and III into types based on specific tooth positions and crowding.

Dewey's modification of Angle's classification divides Class I and Class III into different types based on tooth alignment, crowding, and crossbites.

Lischer's modification introduced new terms to Angle's classification, such as neutrocclusion, distocclusion, and mesiocclusion.

The upper central incisors are proclined or of average inclination, and there's an increased overjet.

The upper central incisors are retroclined, and the overjet is minimal or may be increased.

Lower incisal edges are posterior to the cingulum plateau of the upper incisors.

Lower incisal edges lie anterior to the cingulum plateau of the upper incisors. Overjet is reduced or reversed.

The mesial slope of the upper canine coincides with the distal slope of the lower canine.

The mesial slope of the upper canine is ahead of the distal slope of the lower canine.

The mesial slope of the upper canine lies behind the distal slope of the lower canine.

The Frankfort Horizontal Plane helps detect deviations in the vertical plane. It's used to assess the relationship between the dental arches and the plane. A dental arch closer to the plane is called attraction, and a farther away arch is called abstraction.

A skeletal malocclusion where the maxilla is positioned forward relative to the mandible, resulting in a prominent upper jaw.

A skeletal malocclusion where the mandible is positioned forward relative to the maxilla, resulting in a prominent lower jaw.

A type of skeletal malocclusion where the upper and lower jaws are in harmony with each other, with the maxilla slightly ahead of the mandible.

A type of skeletal malocclusion where the upper jaw (maxilla) is positioned forward relative to the lower jaw (mandible).

A type of skeletal malocclusion where the lower jaw (mandible) is positioned backward relative to the upper jaw (maxilla).

A type of skeletal malocclusion where the upper jaw is narrower than the lower jaw, leading to crowding or crossbite in the canine region.

A type of skeletal malocclusion where the upper incisors are tilted backwards (linguoversion) and may have a deep overbite.

A skeletal malocclusion where both the upper and lower jaws are positioned forward.