Exam 2: Designs for Class I lesions

Question 1

What is the most cost effective class I restoration?

Answer 1

amalgam

Question 2

What are the three most conservative class I restoration materials?

Answer 2

Sealant, PRR, and Composite

Question 3

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

Answer 3

Stress

Question 4

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

Answer 4

Molars!

Question 5

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

Answer 5

expenses

Question 6

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

Answer 6

size

Question 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?

Answer 7

CAMBRA!

Question 8

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

Answer 8

enamel

Question 9

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

Answer 9

isolate

Question 10

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

Answer 10

DRY! white spot lesions!!

Question 11

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

Answer 11

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

Question 12

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

Answer 12

triangular ridges and marginal ridges

Question 13

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

Answer 13

isthmus

Question 14

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

Answer 14

CONTACT

Question 15

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

Answer 15

PARALLEL

Question 16

KEEP THE MARGINAL RIDGE as ______ as POSSIBLE.

Answer 16

THICK

Question 17

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

Answer 17

transverse

Question 18

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

Answer 18

oblique

Question 19

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

Answer 19

1.5 mm

Question 20

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

Answer 20

2mm

Question 21

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

Answer 21

facial and lingual cusps….DEJ

Question 22

Which tooth has the unique pulpal floor angle?

Answer 22

mandibular 1st premolar

Question 23

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

Answer 23

1mm…centered

Question 24

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

Answer 24

unsupported

Question 25

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

Answer 25

SMALLER...enamel rods

Question 26

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

Answer 26

straight or slightly divergent....supported

Question 27

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

Answer 27

divergent (because of the diverging enamel rods!

Question 28

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

Answer 28

central groove

Question 29

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

Answer 29

symmetrical

Question 30

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

Answer 30

parallel

Question 31

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

Answer 31

level

Question 32

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

Answer 32

CONCAVITY...DIVERGENT

Question 33

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

Answer 33

oblique....separate

Question 34

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

Answer 34

parallel

Question 35

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

Answer 35

Cusp of Carabelli

Question 36

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

Answer 36

central

Question 37

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

Answer 37

oblique

Question 38

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

Answer 38

beveled...box

Question 39

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

Answer 39

perpendicular...cingulum or marginal ridges

Question 40

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

Answer 40

Maxillary Lateral Incisor

Question 41

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

Answer 41

facial

Question 42

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

Answer 42

DISTAL

Question 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 ____.

Answer 43

converging....groove..DEJ

Question 44

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

Answer 44

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

Question 45

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

Answer 45

lingually

Question 46

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

Answer 46

BIS-Gma....ceramic

Question 47

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

Answer 47

minimal....micro-mechanical

Question 48

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

Answer 48

1.5 mm

Question 49

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

Answer 49

no bevel, enamel rods are exposed

Question 50

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

Answer 50

CONTACT..1mm

Question 51

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

Answer 51

divergence!... undermined

Question 52

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

Answer 52

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

Question 53

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

Answer 53

HABITS

Question 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.

Answer 54

1mm....1.5mm