Lecture 1

Question 1

what are complete dentures?

Answer 1

materialistic, removable, dental, prostheses that attempt to substitute for the entire dentition and associated structure

Question 2

how long is a denture supposed to last?

Answer 2

dental insurance pays one denture every 5-10 years

Question 3

what is negativity bias?

Answer 3

negativity bias is the psychological phenomenon by which humans pay more attention to and give more weight to negative rather than positive experiences or other kinds of informatio

Question 4

what is ymato?

Answer 4

you me all the others

Question 5

myway magpie

Answer 5

dentures in pocket or puse
carries swenson’s complete dentures and whip
brings own tools
wants to drive the denture bus
attacks ferrociously at try- in
want to set own teeth
never pays and dentist never delivers dentures

Question 6

tawkorchoo goobler

Answer 6

two separate lower dentures

one set for speaking and set for eating

Question 7

karate hawk

Answer 7

brings gifts and flattery as decoy
loves to demean previous dentist
prey on young enthusiastic dentist
constantly looking for new prey
regularly demands ridiculous desires
can't seem to make a positive decision and stick to it

Question 8

bruxing booby

Answer 8

bruxers never remove their dentures, they grind and complain
overloaded and abused denture beating tissues
refuses to believe that the dentures are not the problem

Question 9

minewere mallard

Answer 9

also known as I usta duck
i usta look like...
twentyish attire
strangely can find no old pictures
want to return to the days of yesteryear
provides herself with "plumpers"

Question 10

what is the ultimate objective?

Answer 10

to go from edentulous arches to temporary base plates to the final dentures

Question 11

gag reflex

Answer 11

expect every pt to gag

some pt gag when they brush their teeth- let alone impression taking

Question 12

three bets to take when making an impression

Answer 12

anticipate gagging
anticipate drooling
anticipate tray moving

Question 13

what to do with drooling and gagging

Answer 13

have the patient lean as far forward at the waist and stick their tongue out to minimize gagging
have the patient raise the napkin to catch any drooling
hold the tray firmly in place for the entire time

Question 14

how to prevent gag replex

Answer 14

paint or spray the posterior palatal seal area with topical anesthetic
3 mins working time
do not overspray

Question 15

what are the 2 impressions needed

Answer 15

preliminary impressions->preliminary casts->custom trays->border mold custom trays->final impression->master cast

Question 16

what is the correct impression procedure?

Answer 16

correctly seeing the placing of the tray with the impression material deep enough into the mouth while lifting the lip out of the road

Question 17

what happens if the lips are not lifted?

Answer 17

if the strained, tight lips upon opening are not lifted out of road of the incoming tray and impression material, the tight lips will not allow the tray and impression material to be adequately seated
it is almost always predicted that the impression will not capture the depth of the vestibule and all the necessary surrounding architecture

Question 18

what is the number 1 missed area in edentulous maxillary impression?

Answer 18

premaxilla area

Question 19

what should never be done?

Answer 19

attempting to take impression without retracting the lips

Question 20

what is the number 1 area missed in an edentulous mandibular impression?

Answer 20

lingual flange area - sublingual s extension

Question 21

what are the correct technique for impression taking?

Answer 21

use correct tray size
limit necessary impression material
hold the impression in place for entire set time
deliver necessary saliva evacuation
do not leave the pt unattended

Question 22

what is the osha protection standard?

Answer 22

gown mask gloves eye protection

Question 23

dentulous vs edentulous rim lock trays

Answer 23

dentulous- for preliminary alginate dentulous impressions, tray is deeper for capturing teeth and ridge
no adhesive to be used
rim lock of tray retains impression material

edentulous- for preliminary alginate edentulous impressions, tray is flat for edentulous ridges only
no adhesive to be used
rim lock of tray retains impression material

Question 24

plastic stock trays

Answer 24

good for multitude of impressions (preliminary or final)
can be altered to fit mouth
perforated but adhesive recommended
dispose after use

Question 25

How are stock trays used?

Answer 25

preliminary impressions made in stock trays are not meant to be accurate final impressions
the extension of the vestibule will always be in question in a stock tray
the best is to pick a tray that will fit over the arch and confine the impression material to that area
the impression tray can be made more adaptive and comfortable for the patient by placing a strip of periphery wax around the entire flange of the tray
this blue periphery wax is a mouth-temperature wax and will mold to fit the anatomy of the mouth

Question 26

adding wax and border molding an impression

Answer 26

border mold the periphery wax to the intraoral contours by massaging the lips and cheeks much like you did with the mandibular tray

Question 27

procedure of taking maxillary impression

Answer 27

lift the lips out of the way and see the impression go to proper seating
have the pt lean forward to minimize gagging
have the pt raise the napkin to catch any drooling
have pt raise their legs to tense the stomach muscles
hold the tray firmly in place for the entire time

Question 28

what is the second most missed are in maxillary impressions?

Answer 28

tuberosity

Question 29

what is alginate

Answer 29

irreversible hydrocolloid impression material
it is one of the most frequently used dental materials
it is a simple cost effective and indispensable part of the dental practice
yet very few can make alginate impressions just right the first time

Question 30

what should a complete preliminary impression look like?

Answer 30

should have no major pressure spots or voids

should capture all peripheral extensions

Question 31

within how many minutes should the impression be poured

Answer 31

45 mins

Question 32

why is wax spacer used?

Answer 32

room for impression material
stops tray from overseating
do not remove until after border molding
remove without destroying border molding
remove wax space then add adhesive

Question 33

what is the custom tray and wax spacer trimmed to?

Answer 33

2mm short of vestibule

Question 34

how is the maxillary tray trimmed?

Answer 34

borders 2mm short of depth of vestibules and frenum attachments are free- sufficient room for the border molding and impression material

Question 35

finished custom tray

Answer 35

no sharp edges
no interferring undercuts
2mm short of vestibule
handle not hitting opposing arch- no dinosaur handles