Border

Question 1

complete denture impression

Answer 1

negative registration of the entire denture bearing, stabilizing and border seal areas present in the edentulous mouth

Question 2

preliminary impression

Answer 2

made for the purpose of diagnosis or for the construction of a tray

Question 3

primrary impression making uses

Answer 3

alginate

Question 4

impression philosophies (3)

Answer 4

minimal pressure
functional pressure
selective pressure

Question 5

minimal pressure impression

Answer 5

attempt is made to exert as little pressure as possible during impression procedures
objective is to capture tissues in their most undisturbed and undisplaced firm

Question 6

minimal pressure rationale

Answer 6

suggests that if tissues are recorded in an indisturbed state using an accurate, free flowing impression material, retention and stability of the dentures would be increased

Question 7

minimal pressure material

Answer 7

low viscosity, high flow

minimal pressure used to seat and hold tray

Question 8

functional pressure impression

Answer 8

made with soft tissue under a significant load

impression material is more viscous

Question 9

functional pressure theory

Answer 9

denture base tissue contact during function would be more intimate if tissue is recorded under compression

Question 10

selective pressure impression

Answer 10

pressure in certain areas, minimal pressure on other areas

dentist decides where and how much pressure

Question 11

which technique do we use?

Answer 11

selective pressure

Question 12

how do we select areas of pressure and non pressure within the same impression? (4)

Answer 12

wax spacer relief
drill vent holes in tray
grind the tray for relief space
combination of the above

Question 13

why use a custom. tray?

Answer 13

borders can be modified to control the movable soft tissues around the impression and avoid distorting them

Question 14

space can be provided inside the tray so that the shape of the tissues supporting the denture may be recorded with minimal or selective — in the primary support areas

Answer 14

displacement

Question 15

for secondary impressions, mucosa should be

Answer 15

healthy

Question 16

secondary impression material

Answer 16

low viscosity

Question 17

in secondary impressions, use minimum

Answer 17

pressure to seat tray; seat and hold impression until set

Question 18

purpose of border molding

Answer 18

define denture in length, width, shape, countour

Question 19

when completed it should resemble

Answer 19

anticipated denture border

Question 20

border molding materials

Answer 20

thermoplastic materials, elastomeric impression materials

Question 21

kerr green stick modeling comound working temp

Answer 21

123 F

Question 22

water bath temp

Answer 22

135-140 F

Question 23

maxillary border molding (2)

Answer 23

insert tray and insure that 2 mm of space is present between
vestibular reflection and tray border
Tray must extend into each hamular notch and to just beyond/posterior to the vibrating line (“ah” line on soft palate)

Question 24

max border molding steps

Answer 24

warm compound and place on a section of perimeter of dry tray
temper in water bath
place in mouth

Question 25

max posterior patient moves jaw from

Answer 25

side to side (determines length)

Question 26

Buccal frenum area (3)

Answer 26

Warm compound, temper, insert tray
Elevate cheek, lightly massage outward, downward and ant. -posteriorly
Chill compound and inspect

Question 27

Labial Vestibule

Answer 27

elevate lip outward, massage downward

Question 28

Labial frenum (3)

Answer 28

Warm, temper compound
Elevate lip, seat tray
Lightly massage lip straight down –do not move lip side-to-side

Question 29

Posterior palatal border

Answer 29

Have patient pinch nostrils, blow lightly through nose, then swallow

Question 30

Mandibular (2)

Answer 30

Try in tray - - 2 mm space at border

►Difficult to see on lingual

Question 31

Lingual frenum area:
Gently wet upper lip with tip of tongue – of border
Place tip of tongue under upper lip side to side – of border

Answer 31

length

width

Question 32

Alveololingual sulcus

Answer 32

patient swallows or protrudes tongue- but not past the lips

Question 33

Mylohyoid region (2)

Answer 33

Patient swallows forcefully 2 or 3 times-floor of the mouth moves
Tongue touches buccal vestibules (R & L) and thumb by the handle

Question 34

Distal border and Masseteric notch (2)

Answer 34

Patient stretches wide open

Patient closes against manual pressure

Question 35

Buccal frenum

Answer 35

Massage cheek outward, upward, inward/ Anterior-posterior

Question 36

A mental picture: when completed, should resemble

Answer 36

what denture border will look like