DA 140a, Chapter 11

Distoclusion

A class II malocclusion in which the mesiobuccal cusp of the maxillary first molar occludes mesial to the mesiobuccal groove of the mandibular first molar.

Which tooth is referred to as the cornerstone of the dental arch?

Canine

What classification is neutrocclusion?

Class I

Curve of Wilson

Cross arch curvature of the occlusal plane

Centric Occlusion

Maximum contact between the occluding surfaces of the maxillary and mandibular teeth

What is the technical term for a class III Occlusion?

Mesiocclusion

What are the most posterior teeth called?

Molars

Height of Contour

The bulge or widest point on a specific surface of the crown

Masticatory Surface

The chewing surface of the teeth

Curve of Spee

The curve formed by the maxillary and mandibular arches in occlusion

Libioversion

The inclination of the teeth to extend facially beyond the normal overlap of the incisal edge of the maxillary incisors over the mandibular incisors.

Mandibular

The lower jaw

Embrasure

The triangular space in a gingival direction between the proximal surfaces of two adjoining teeth in contact

Maxillary

The upper jaw

Anterior

Toward the front

Quadrant

1/4 of the detention

Sextant

1/6 of the detention

How many sets of teeth are in the primary detention?

20 teeth

Neutrocclusion

An ideal mesiodistal relationship between the jaws and the Dental arches.

Malocclusion

Any deviation from the normal positioning of the upper teeth against the lower teeth

Which one-third portion of a tooth's surface is positioned toward the end of the root?

Apical one third

Decidous

Baby or primary teeth

The term for the position of teeth during chewing is..

Functional Occlusion

Explain how the size and shape of the teeth determine their functions.

Incisors cut food without force, Canines cut and tear food with force, premolars hold the food while the lingual cusps grind it and the molars grind the food.

Name and identify the location of each of the tooth surfaces.

Incisors, front of the mouth Canines, corner of "arch" Premolar, between canines and molars Molars, behind premolars

The junction of two teeth surfaces is a..

Line Angle

What is the surface of the tooth that faces the tongue?

Lingual

Centric occlusion

Maximum contact between Occluding surfaces.

Dentition

Natural teeth in the dental arch

Succedanteous

Permanent teeth that replace the primary teeth

What sets of teeth do humans have in their lifetime?

Primary and permanent

The difference between primary, mixed and permanent detentions.

Primary, 20 teeth Mixed, a mix of both primary and permanent Permanent, 32 teeth.

Nasmyth's Membrane

Residue from epithelial tissue on on the crowns of newly irrupted teeth that may be extrinsically stained

Occlusion

The natural contact of the maxillary teeth and mandibular teeth

Linguoversion

The position of the maxillary incisors behind the mandibular incisors.

Interproximal Space

The space between adjacent tooth surfaces

Distal Surface

The surface of the tooth distant from the midline

Mesial Surface

The surface of the tooth towards the midline

Anterior Teeth

The teeth in the front of the mouth

Name and describe the three primary systems of numbering

Universal: United States, 1-32 International: 1st # quadrant, 2nd # tooth. Palmer: 4 quadrants, 1-8 teeth #