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RCD ( Removable complete dentures) > selection of artificial teeth > Flashcards

Flashcards in selection of artificial teeth Deck (18):
1

methacrylate resin teeth

occlusal reshaping is easy, tougher than porcelain, not stable in water, exhibit inferior abrasion resistance

2

porcelain teeth

estheticaly excellent, high abrasion resistance, attach mechanically by pins or diatoric holes, stable in water

3

more on porcelain teeth

cause significant weat of opposing enamel and metallic occlusal surfaces, brittle and crack easily, difficult to reshape because they loose their surface glaze, make clicking sounds when in contact.

4

more on porcelain

heavy, higher wear resistance that is 10-20 times greater than resin teeth

5

how should you involve patients when selecting denture teeth?

narrow it down to 2 or 3 and let the patient choose.

6

4 basic face forms

square, square tapering, tapering, and ovoid.

7

how can you determine which form someones face is?

usethe Trubyte tooth indicator

8

describe where the points are when using the trubyte tooth indicator

point A- acroos the forehead 2/3 up from eyebrow
point B- at the tragus of ear or middle of face
point C- at the angle of jaw

9

when would non-anatomic posterior teeth be used for dentures?

class 2 or 3 malocclusions

10

whats the main purpose for anterior teeth in dentures?

esthetics

11

how far should the facial surface of the central incisors be from the incisive papilla?

5-9 mm

12

maxillary lateral incisors

long axis should tilt slighlty distally, the cervical part of the tooth should tilt lingually as well. Incisal edge should be 1mm above occlusal rim.

13

maxillary canines in dentures

incisal edge should touch rim, long axis is perpendicular to rim, cervical 1/3 of labial portion should incline buccaly,

14

should the maxillary incisors touch the mandibular in a centric fashion?

no, they should be very close to edge to edge.

15

what should be ther overjet and overlap of the anterior teeth?

1mm and 1mm

16

where should the mandibular central incisors be ?

perpendicular to occlusal plane. Also should be set to midline.

17

mandibular lateral incisors

long axis should be slightly inclined distally at cervical portion of tooth.

18

mandibular canines

almost perpendicular but have a slight distal tilt. incisal surface touches the plane.