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 #
