Exam 2: Designs for Class I lesions Flashcards Preview

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Flashcards in Exam 2: Designs for Class I lesions Deck (54):
1

What is the most cost effective class I restoration?

amalgam

2

What are the three most conservative class I restoration materials?

Sealant, PRR, and Composite

3

KEY concept: Factors that affect our treatment recommendations.. ______ on the tooth from heavy occlusion, grinding, and wear.

Stress

4

KEY concept: Factors that affect our treatment recommendations..Aesthetics-the _______ are teeth that aren't really aesthetically crucial.

Molars!

5

KEY concept: Factors that affect our treatment recommendations.. Pt's out of pocket ________

expenses

6

KEY concept: Factors that affect our treatment recommendations.. _____ of the lesion, the smaller the more conservative we can be.

size

7

KEY concept: Factors that affect our treatment recommendations.. the Pt's ________, if you treat the lesion, what to keep it from occurring more often?

CAMBRA!

8

KEY concept: Factors that affect our treatment recommendations..Amount of sound ______ remaining.

enamel

9

KEY concept: Factors that affect our treatment recommendations..ability to ______ the tooth, like in our class V's.

isolate

10

Before we can diagnose our pit and groove pattern, we need to _____ the tooth thoroughly!!!

DRY! white spot lesions!!

11

What are the 3 places a Class I restoration can occur?

1. occlusal surfaces of posterior teeth 2.Pits in the occlsusal 2/3 of facial and lingual surfaces of molars 3.Lingual Pits of maxillary incisors of top 2/3 of tooth

12

What are the two structures that bore most of the load from occlusion?

triangular ridges and marginal ridges

13

What is the narrowest part of a preparation in the F/L direction? PLEASE don't get this wrong..

isthmus

14

We PRE-ARTICULATE to avoid having the cave-surface margin at the opposing ______ point.

CONTACT

15

The outline of the proximal prep should be ______ to the maringal ridge!

PARALLEL

16

KEEP THE MARGINAL RIDGE as ______ as POSSIBLE.

THICK

17

Do not cut across the the ________ ridge of lower first premolars.

transverse

18

Do not cut across the _______ ridge of upper permanent molars.

oblique

19

For AMALGAM prep guidelines: Need a minimum of ____ mm depth starting from the central groove of your amalgam carving.

1.5 mm

20

On our amalgam prep: The Facial and Lingual walls at the cavo-surface may be deeper closer to ___mm.

2mm

21

Amalgam prep: The pulpal floor is parallel to a plane between the ______ and ______ cusps...essentially it follows the ____.

facial and lingual cusps....DEJ

22

Which tooth has the unique pulpal floor angle?

mandibular 1st premolar

23

Amalgam: The isthmus should be MINIMALLY ___mm in width. And should be _____ on the tooth!

1mm...centered

24

Amalgam: If you are over-converged on your prep you will likely have _______ enamel.

unsupported

25

A _______ isthmus allows for greater convergence! This is due to the orientation of the _______.

SMALLER...enamel rods

26

Amalgam: the M and D walls are _______ or slightly _______. WE NEED ________ enamel on the marginal ridge!

straight or slightly divergent....supported

27

Amalgam: the thinner the marginal ridge ends up being, the more _______ your prep will need to be.

divergent (because of the diverging enamel rods!

28

Individual Preps-max premolars--The outline follows the general direction of the _______.

central groove

29

Individual Preps-max premolars-- The Mesial & distal pits are ________.

symmetrical

30

Individual Preps-max premolars--The mesial and distal marginal ridges are _______ to the dovetails.

parallel

31

Individual Preps-max premolars--The pulpal floor is _____ as the Facial and Lingual cusps are similar in height

level

32

The first premolar has a strong mesial _______ and therefore the mesial wall may need to be slightly more _______.

CONCAVITY...DIVERGENT

33

Individual Preparations – Maxillary Molars: Do not cut through the ______ ridge...Form ______ mesial and distal preparations

oblique....separate

34

Individual Preparations – Maxillary Molars: The walls adjacent to the oblique ridge are _____ to
the oblique ridge.

parallel

35

Individual Preparations – Maxillary Molars: ONLY for first molars, a separate preparation along the groove forming the _______ is done if carious.

Cusp of Carabelli

36

Individual Preparations – Maxillary Molars: The outline follows the general direction of the _______ groove.

central

37

Individual Preparations – Maxillary Molars OL: Occlusal outline is parallel to the _______ ridge

oblique

38

Individual Preparations – Maxillary Molars OL: Axial-pulpal line angle is ________. With the lingual/gingival floor a ____ design.

beveled...box

39

individualr preps Maxillary Incisiors: The walls are cut ________ to the surface of the tooth...Avoid cutting through the _______ or ________.

perpendicular...cingulum or marginal ridges

40

BE AWARE of DENS INVAGINATUS in this tooth: _______!!

Maxillary Lateral Incisor

41

Individual Preparations – Mandibular molars-The center of the preparation is slightly ______ to the central groove of the tooth

facial

42

Individual Preparations – Mandibular molars- Small outline extensions are made into deep secondary grooves especially the _____ groove on the lower first molar

DISTAL

43

For mandibular molar buccal pits- make the walls _______ to retain amalgam and prep it centered on the buccal ______. The minimum depth is to the ____.

converging....groove..DEJ

44

Greater morphological variance occurs in the pit and groove pattern in this tooth: _______. It has 3 types of outlines ___, ____, or _____.

mand second PM...U, Y, or H

45

In the mand first pm, the pulpal floor is inclined _______ since the lingual cusp is significantly smaller.

lingually

46

Composte Preps! The composite is made of glue: ______ and filler ______.

BIS-Gma....ceramic

47

Composte Preps! Preps can be ______ due to the bonding principles of composites. The composite is held in by _________ bonding to enamel and dentin.

minimal....micro-mechanical

48

Composte Preps! Not evidence based, but Only in areas of opposing contact is there a minimum depth requirement of ____ mm*

1.5 mm

49

Composte Preps! Do we bevel the cavo-surface? What must be exposed?

no bevel, enamel rods are exposed

50

Composte Preps! Class I composite restorations not in direct occlusal ______ may have an external cavo- surface BEVEL of __mm

CONTACT..1mm

51

Composte Preps! Guess What!? Proximal walls do not require ________! A small amount of ________ enamel is acceptable.

divergence!... undermined

52

Composte Preps! What are the 6 burs we're gonna use for our preps??

1.#34D 2.#245C 3.#330C 4.#1/2Round 5.#330D 6.#132FD

53

Composte Preps! The ______ you develop here will carry over to your practice. BOOM.

HABITS

54

Class I amalgam prep on #30, make sure your isthmus is the minimum ___mm and the pulpal floor is at least ___mm deep at the central groove.

1mm....1.5mm