CHAPTER 11 Key terms Flashcards
FDA
Angles classification
angles describing the occlusion and malocclusion
Centric Occlusion
the maximal contact between the occluding surfaces of Max. and Man. teeth
Distoclusion
the mesiobuccal cusp of Max. 1st molar occludes the mesial to the Man. mesiobuccal groove on the 1st molar (malocclusion)
Occlusion
Maxillary and mandibular teeth form a full closed position
Functional occlusion
the contact of teeth during chewing and biting movements
Malocclusion
Abnormal relationship with Max. and Man. in centric occlusion
Neutroclusion (Class 1) of Angles classification
mesiobuccal cusp on max. 1st molar occludes with mesiobuccal groove on the Man. 1st molar
Labioversion (Division 1)
incline of teeth to extend facially beyond the normal overlap of the incisal edge of the max. Incisors over the Max. and Man. incisors
Linguoversion
Position of the Maxillary incisors behind the Mandibular Incisors
Point angle
Angle formed by the junction of three surfaces
Mesioclusion
Term used for class 3 malocclusion
Line angle
Junction of two tooth surface walls
CLASS 1
The Mesiobuccal cusps first molar occludes with the mandibular Mesiobuccal groove 1st molar
CLASS 2 (DIVISION 1)
Maxillary anterior incisors protrude facially from the mandibular anterior incisors, with a deep overbite.
CLASS 2 (DIVISION 2)
Maxillary central incisors are upright. Lateral Incisors over-lap the central incisors with a deep overbite
CLASS 3
Maxillary incisors in complete cross bite, Mandibular overlaps Maxillary
Anterior
Front
apical third
division of the root nearest the tip of the root
buccal surface
tooth surface closest to the inner cheek
Cervical Third
Division of the root nearest the neck of the tooth
Curve of Spee
Curvature formed by the maxillary and mandibular arches in occlusion
Curve of Wilson
cross - arch curvature of the occlusal plane
embrasure
Triangular space in a gingival direction between the proximal surfaces of two adjoining teeth in contact
interproximal
the space between two adjacent tooth surfaces
incisal surface
the chewing surface of anterior teeth
malocclusion
occlusion that is deviated from class 1 normal occlusion
middle third
division of the root in the middle
occlusal surface
the chewing surface of posterior teeth
proximal surfaces
surfaces next to each other when teeth are adjacent in the arch
quadrant
one quarter of the dentition
Sextant
one sixth of the dentition
succedaneous
permanent teeth that replace primary teeth
