CHAPTER 11 Key terms

Question 1

Angles classification

Answer 1

angles describing the occlusion and malocclusion

Question 2

Centric Occlusion

Answer 2

the maximal contact between the occluding surfaces of Max. and Man. teeth

Question 3

Distoclusion

Answer 3

the mesiobuccal cusp of Max. 1st molar occludes the mesial to the Man. mesiobuccal groove on the 1st molar (malocclusion)

Question 4

Occlusion

Answer 4

Maxillary and mandibular teeth form a full closed position

Question 5

Functional occlusion

Answer 5

the contact of teeth during chewing and biting movements

Question 6

Malocclusion

Answer 6

Abnormal relationship with Max. and Man. in centric occlusion

Question 7

Neutroclusion (Class 1) of Angles classification

Answer 7

mesiobuccal cusp on max. 1st molar occludes with mesiobuccal groove on the Man. 1st molar

Question 8

Labioversion (Division 1)

Answer 8

incline of teeth to extend facially beyond the normal overlap of the incisal edge of the max. Incisors over the Max. and Man. incisors

Question 9

Linguoversion

Answer 9

Position of the Maxillary incisors behind the Mandibular Incisors

Question 10

Point angle

Answer 10

Angle formed by the junction of three surfaces

Question 11

Mesioclusion

Answer 11

Term used for class 3 malocclusion

Question 12

Line angle

Answer 12

Junction of two tooth surface walls

Question 13

CLASS 1

Answer 13

The Mesiobuccal cusps first molar occludes with the mandibular Mesiobuccal groove 1st molar

Question 14

CLASS 2 (DIVISION 1)

Answer 14

Maxillary anterior incisors protrude facially from the mandibular anterior incisors, with a deep overbite.

Question 15

CLASS 2 (DIVISION 2)

Answer 15

Maxillary central incisors are upright. Lateral Incisors over-lap the central incisors with a deep overbite

Question 16

CLASS 3

Answer 16

Maxillary incisors in complete cross bite, Mandibular overlaps Maxillary

Question 17

Anterior

Answer 17

Front

Question 18

apical third

Answer 18

division of the root nearest the tip of the root

Question 19

buccal surface

Answer 19

tooth surface closest to the inner cheek

Question 20

Cervical Third

Answer 20

Division of the root nearest the neck of the tooth

Question 21

Curve of Spee

Answer 21

Curvature formed by the maxillary and mandibular arches in occlusion

Question 22

Curve of Wilson

Answer 22

cross - arch curvature of the occlusal plane

Question 23

embrasure

Answer 23

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

Question 24

interproximal

Answer 24

the space between two adjacent tooth surfaces

Question 25

incisal surface

Answer 25

the chewing surface of anterior teeth

Question 26

malocclusion

Answer 26

occlusion that is deviated from class 1 normal occlusion

Question 27

middle third

Answer 27

division of the root in the middle

Question 28

occlusal surface

Answer 28

the chewing surface of posterior teeth

Question 29

proximal surfaces

Answer 29

surfaces next to each other when teeth are adjacent in the arch

Question 30

quadrant

Answer 30

one quarter of the dentition

Question 31

Sextant

Answer 31

one sixth of the dentition

Question 32

succedaneous

Answer 32

permanent teeth that replace primary teeth