4 - Natural Esthetics and Smile Design, Lab 4 (Setting Anteriors)

Question 1

when do you complete gothic arch tracer

Answer 1

same appointment as anterior try in

Question 2

how do you measure width of anterior teeth

Answer 2

with flexible ruler, distal of canine to distal of canine

Question 3

what tool can be used to select anterior teeth

Answer 3

Trubyte tooth selector

Question 4

what shapes are ivoclar anterior teeth categorized as

Answer 4

square, tapering, and ovoid shapes

Question 5

describe square tooth molds

Answer 5

• central incisor: dominant
• gingivo-incisal curve: moderate
• shape offers maximum light deflection and creates bold effect

Question 6

describe tapering tooth molds

Answer 6

• rounded contour
• taper towards cervical ridge
• gingivo-incisal curvature: moderate
• large triangular incisor slightly triangular in shape

Question 7

describe ovoid tooth molds

Answer 7

• gingivo-incisal curvature: pronounced
  disperse light reflection to create softened appearance

Question 8

“see with the ___, observe with the ___”

Answer 8

eye; mind

Question 9

what affect dynesthetics? how many are there?

Answer 9

SPA: sex, personality, age
there are 17

Question 10

difference between male and female teeth

Answer 10

male-rugged with square teeth & bold central incisors
female-pronounced curvatures, rounded point angles

Question 11

what is the personality tooth?

Answer 11

maxillary lateral incisors (vary more in size, form, and position than any other tooth)

Question 12

different in teeth based on age (young vs old)

Answer 12

Young-tapered, ovoid, rounded teeth
Older-square, sharp corners

Question 13

describe delicate characteristics

Answer 13

~Rounded arch form
~Rounded corners
~Anteriors closely follow the lower lip
~Laterals overlap centrals
~Smaller laterals and cuspids
~Sharp Canines

Question 14

describe rugged characteristics

Answer 14

~ Angular outlines
~Larger laterals and canines
~Square arch form
~Centrals overlap laterals
~Blunt canines

Question 15

should teeth gradually lower OR rise along the occlusal plane? why?

Answer 15

RISE! to give the impression of distance

Question 16

the buccal corridor is controlled by placement of what tooth?

Answer 16

canine

Question 17

what is the principle function of maxillary anterior teeth?

Answer 17

esthetics

Question 18

what is the secondary function of maxillary and mandibular anterior teeth

Answer 18

phonetics

Question 19

the labial portion of CI is how many mm anterior to incisive papilla

Answer 19

8-10 mm

Question 20

incisal length and width can be measured with what

Answer 20

alma gauge

Question 21

what is the incisal display for the following lip lengths?
10-20mm
20-25mm
26-30mm
30 & over

Answer 21

10-20mm: 3-4mm
20-25mm: 2mm
26-30mm: 1mm
30 & over: 0

Question 22

who shows less incisal display

Answer 22

older people

Question 23

what produces the frigative sounds

Answer 23

upper teeth contact the wet-dry line of lower lip during speech productions of “f” and “v” sounds

produced by anterior teeth

Question 24

what make “s” sounds

Answer 24

linguopalatal - made by contact between tip of tongue and palate of rugae area w/ small space for escape of air

Question 25

what happens if "s" sound space is too small

Answer 25

whistle usually results and if the space is too broad and thin, the "s" sound is replaced by "sh" sound (a lisp)

Question 26

describe the lateral incisor placement in males vs females

Answer 26

males: LINGUOversion females: LABIOverision

Question 27

arrangement considerations of mandibular anterior teeth

Answer 27

1. Vertical overlap 2. Horizontal overlap 3. Antero-posterior inclination in proximal view 4. Inclination of long axes

Question 28

what is the Class 1 relationship

Answer 28

central incisors perpendicular to ridge

Question 29

what is the Class 2 relationship

Answer 29

central incisors slightly palatally inclined

Question 30

what is class 3 relationship

Answer 30

central incisors slightly labially inclined

Question 31

is tilting of the centrals acceptable?

Answer 31

NO! esthetically unacceptable

Question 32

describe what happens when maxillary centrals are rotated towards a distal flare

Answer 32

creates a highlight on center of tooth, giving a boldness to set up

Question 33

is mesial flare on centrals esthetically acceptable?

Answer 33

NO!

Question 34

can you characterize denture by altering neck position of centrals?

Answer 34

no because it will make one central look light and the other look dark (deflection neck out vs. reflection neck in)

Question 35

what should length of max central incisor be

Answer 35

same length as wax rim

Question 36

how to position lateral maxillary teeth for SOFT characteristic (labial palatal inclination, M-D inclination, rotation, length)

Answer 36

L-P: labial (neck in) M-D: long axis of tooth inclined distally Rotation: mesial flare Length: 1-2 mm (At least 0.5 mm) than phonetic rim

Question 37

how to position lateral maxillary teeth for BOLD characteristic (labial palatal inclination, M-D inclination, rotation, length)

Answer 37

L-P: perpendicular M-D: none Rotation: distal flare Length: same length as phonetic rim

Question 38

how should maxillary canines inclnie

Answer 38

palatal inclination (neck out)

Question 39

how many degree distal inclination of max canine

Answer 39

15 degree (long axis of canine inclined toward distal)

Question 40

should you do mesial or distal flare for max canine rotation

Answer 40

mesial flare

Question 41

what tooth is always shorter then canine or central

Answer 41

lateral

Question 42

what tooth is always longer than the premolar

Answer 42

canine

Question 43

mandibular anterior teeth should maintain how much horizontal and vertical overlap?

Answer 43

1 mm horizontal 1 mm vertical

Question 44

what is the purpose of drawing a blue line on the inside of the land area of casts? why?

Answer 44

teeth must not be set facial to this line because it will make the denture unstable

Question 45

midline on lab project is drawn where? how is this different from real life appointment?

Answer 45

- midline matches buccal frenum - midline in real life marked clinically during jaw relation records appointment

Question 46

when placing the first tooth on max arch (#9) where should it be located

Answer 46

next to midline, at height of wax rim and width

Question 47

what to use as reference for #8

Answer 47

parallel to #9, incisal edges of both teeth should touch flat plane, long axis of both teeth should be straight/parallel with each other

Question 48

incisal edge of laterals are ___ more apical than central

Answer 48

0.5mm

Question 49

long axis of laterals should be inclined [mesial or distal] compared to centrals

Answer 49

distally

Question 50

maxillary canines should be even/level with what teeth

Answer 50

centrals

Question 51

after placing maxillary teeth, what do you check

Answer 51

1. pin and zero 2. pin touches/holds articulating paper on incisal guide 3. mx posterior wax rim still touching MD wax rim

Question 52

where should you draw lines on mandibular cast/wax rim? what is this for

Answer 52

- center of mandibular ridge on both sides (mark at top of retromolar pad and near canine area) - connect the line - this is where MAXILLARY LINGUAL CUSPS will eventually go and central grooves of mandibular posterior teeth

Question 53

lateral max should be angled mesial or distal

Answer 53

DISTAL

Question 54

incisal edge of mand canine should be tipped how

Answer 54

distally

Question 55

should all teeth sit flat with plane on mandibular

Answer 55

yes