Lec 9: THE OCCLUSAL SURFACEs

Question 1

T/F

patients’ family members and friends opinion or input are also
considered in teeth selection protocol

Answer 1

T

Question 2

T/F

ANTERIOR TEETH SELECTION

window light from north side as well as on the south side

Answer 2

T

Question 3

GUIDES IN TEETH SELECTION AND ARRANGEMENT

Answer 3

→ current or previous prosthetic teeth
→ old study casts
→ photographs wherein patient is smiling
→ children’s photos

Question 4

same, curved, or straight, amount of wear

Answer 4

Tooth shape

Question 5

same or moved left/right

A. Midline
B. Occlusal Plane
C. Dental Arch
D. Lip support
E. Unique features
F. Gingival Color

Answer 5

A

Question 6

same or tilted, moved up/down, more or less visible

A. Midline
B. Occlusal Plane
C. Dental Arch
D. Lip support
E. Unique features
F. Gingival Color

Answer 6

B

Question 7

same or moved in/out, more or less curved or flat, more or less visible

A. Midline
B. Occlusal Plane
C. Dental Arch
D. Lip support
E. Unique features
F. Gingival Color

Answer 7

C

Question 8

same or too little/too much

A. Midline
B. Occlusal Plane
C. Dental Arch
D. Lip support
E. Unique features
F. Gingival Color

Answer 8

D

Question 9

same or incisal wear, chips, rotations, spaces, restorations

A. Midline
B. Occlusal Plane
C. Dental Arch
D. Lip support
E. Unique features
F. Gingival Color

Answer 9

E

Question 10

same or less/more pigmented, custom shading

A. Midline
B. Occlusal Plane
C. Dental Arch
D. Lip support
E. Unique features
F. Gingival Color

Answer 10

F

Question 11

T/F

When planned improvement means change, work within the range that the patient can accept and assess the tolerance and motivation of your patient for change

Answer 11

T

Question 12

T/f

shade selection process can be done by elimination from the set of complete shade guide, by selecting first the lightest and darkest tabs

Answer 12

T

Question 13

SIZE SELECTION
valuable inputs:

Answer 13

→ existing dentures
→ models or previous teeth
→ photographs
→ set two different sizes on a piece of wax and place it under the
upper lip and find out which on the patient prefers

Question 14

a high smile line that displays a lot of gingiva would benefit
from the selection of a less tapered mold with a long contact point

Answer 14

PATIENT PREFERENCES

Question 15

porcelain or acrylic

Answer 15

PATIENT PREFERENCES

Question 16

OVERDENTURES AND IMPLANT DENTURES
→ implant abutments create areas of limited ____ space

Answer 16

interocclusal

Question 17

use larger square mold acrylic unlayered teeth

Answer 17

OVERDENTURES AND IMPLANT DENTURES

Question 18

T/F

→ acrylic teeth is preferred for dentures that oppose natural teeth

Answer 18

T

Question 19

T/ F

porcelain can be very abrasive and can contribute to the wear and destruction of opposing teeth’s enamel

Answer 19

T

Question 20

T/ F

porcelain teeth should only be used if the opposing dentition is also porcelain (as in set of dentures) because porcelain can rapidly wear opposing enamel and restorations

Answer 20

T

Question 21

porcelain anterior teeth have two small ___ ___

Answer 21

plated pins

Question 22

porcelain posterior teeth have hollowed out center or
__

Answer 22

diatoric

Question 23

Denture tooth molds are often ___ than the natural teeth they replace

Answer 23

narrower

Question 24

T/ F

The improved attachment provided by titanium implants has dramatically improved the chewing ability of edentulous patients far more than any posterior tooth mold.

Answer 24

T

Question 25

posterior artificial teeth are manufactured with cusp inclines that vary from ___ degrees (anatomical) to 0 degree (flat)

Answer 25

30

Question 26

guide to the midline for the maxillary central incisors and the prominence of the incisors and cuspids

Answer 26

Incisive Papilla

Question 27

guides the bucco-lingual positioning of the bicuspids

Answer 27

Mandibular bicuspid residual ridge

Question 28

T/ F

anterior artificial teeth should be set into positions similar to that previously occupied by the natural teeth for esthetics and speech

Answer 28

T

Question 29

good static guide to the midline position of the two upper central incisors in the denture

Answer 29

Incisive Papilla

Question 30

set on this midline will have positions similar to those of the natural teeth

Answer 30

Central Incisors

Question 31

will have midline marked based on the appearance of the lips and face

Answer 31

Wax Registration Rim

Question 32

to create a minimum overbite/overjet for a standard anterior setup–use the maxillary ____as a guide to position the mandibular teeth

Answer 32

wax rim

Question 33

T/ F

mandibular occlusal plane would be located at a height near the corners of the mouth so as to be visible with a “lips apart/mouth breathing” posture

Answer 33

T

Question 34

MANDIBULAR CENTRAL INCISOR POSITIONS

the incisal edges of these teeth are set at the height of the maxillary wax occlusal rim to create minimal ___ overlap with the maxillary central and canine teeth

Answer 34

vertical

Question 35

MANDIBULAR CENTRAL INCISOR POSITIONS

a ____ mm horizontal overlap should exist between the lingual surface of the maxillary anterior teeth and the labial surface of the mandibular anterior teeth

Answer 35

1-2

Question 36

MANDIBULAR LATERAL INCISORS

position the lateral incisors next to the central incisors, with their long axes directed ___ the residual ridge

Answer 36

toward

Question 37

MANDIBULAR LATERAL INCISORS

-the incisal edge should be at the height of the wax ____
-continue the 1-2 mm of horizontal overlap between the maxillary and mandibular anterior teeth

Answer 37

occlusal rim

Question 38

MANDIBULAR CANINES

place the mandibular canines with the anterior ___of the incisal edge in symmetry with the lateral and central incisors

-place the incisal tip at the same level as the lateral and central incisors

Answer 38

1⁄2

Question 39

MAXILLARY CENTRAL INCISORS

the long axes should ____ slightly on each side of the midline

Answer 39

diverge

Question 40

the teeth should not look like a “white picket fence”

Answer 40

MAXILLARY CENTRAL INCISORS

Question 41

T/F

MAXILLARY LATERAL INCISORS

place the maxillary lateral incisor next to the central incisor, with the neck slightly depressed

Answer 41

T

Question 42

T/F

MAXILLARY LATERAL INCISORS

→ this incisal edge is even with the remaining maxillary wax occlusal rim and is therefore slightly elevated from the central incisor

Answer 42

T

Question 43

T/ F

MAXILLARY LATERAL INCISORS

the incisal edge is parallel with the mandibular wax occlusal rim

Answer 43

T

Question 44

T/F

MAXILLARY CANINES

place the maxillary canine so that the anterior one half of the incisal edge is in symmetry with the lateral and central incisors as it curved around the labial contour of the wax occlusal rim

→ the neck of the tooth must be prominent and the tooth tilted slightly to the distal

Answer 44

T

Question 45

T/F

mandibular denture covers a smaller area than the maxillary one, it requires more muscular control for its stability

Answer 45

T

Question 46

T/F

the posterior references of the center of the retro-molar pads (RMPs) will place the mandibular occlusal plane at a level and width similar to the natural dentition that is familiar to the tongue

Answer 46

T

Question 47

T/ F

tooth contact should be in the area where the resorbed ridge is parallel to the occlusal plane

Answer 47

T

Question 48

cuspless teeth, can also be used for balance concept with compensating curves

Answer 48

Monoplane or Non-Anatomical

Question 49

combinations of upper anatomical and lower nonatomical molds

Answer 49

Lingualized Articulations

Question 50

T/F

the buccal cusps of both the maxillary and mandibular teeth appear realistic, but they do not touch in occlusion or excursions

Answer 50

T