Operative / Cariology

Question 1

What is the best conditioner to clean the tooth’s surface when applying GI adhesive?

Answer 1

PAA (polyAlkenoic acid)

Question 2

What is a ‘C factor’? What does a high C factor indicate? What is a potential problem with a high C factor?

Answer 2

the ratio of bonded to unbonded (or free surfaces) in a tooth preparation…HIGH C factor = MORE bonded to unbonded restoration surface areas…greater the C factor the greater the potential for bond disruption from polymerization shrinkage…(a class I has highest c factor, a class IV has the lowest

Question 3

Which surface of a Primary mand first molar will req the least amount of reduction?

Answer 3

LINGUAL

Question 4

What teeth and their surface are LEAST susceptible to class I lesions?

Answer 4

Lingual of Mand Incisiors

Question 5

Using completmentary colors in adjusting shade of restorations has WHAT EFFECT on VALUE?

Answer 5

Decreases value (making darker)

Question 6

In relation to resin composites, which mechanical property measures the material’s ability to resist the propagation of a crack?

Answer 6

Fracture toughness (whatever the fuck that means)

Question 7

Zinc is added to low-copper amalgam for delayed _______ when contaminated with moisture, enhancing ______ properties, and reducing ______ fracture rates

Answer 7

expansion, mechanical, marginal

Question 8

Pins serve to retain the amalgam, NOT _________ it.

Answer 8

strengthen

Question 9

If the remaining dentin thickness is greater than 1.5mm, __________ can be used as cavity liner but for a remaining thickness of 0.5mm or less, __________ should be used, then glass ionomer should be placed.

Answer 9

glass ionomer cement…..calcium hydroxide

Question 10

In an open sandwich technique, a restorative ___________ or __________ is used in the portion of the restoration near the gingival margin.

Answer 10

GIC or RMGIC

Question 11

Thickness of CaOH liner?

Answer 11

0.5-0.75mm

Question 12

Depth past DEJ of an amalgam prep?

Answer 12

0.5mm

Question 13

225 bur = ?mm

Answer 13

3mm

Question 14

330 bur = ?mm

Answer 14

1.5mm

Question 15

Dry Heat Steril

Answer 15

2hrs 320F 160degC

Question 16

Autoclave

Answer 16

15 psi, 20 min, 120degCel

Question 17

What [ ] of F- in mg should be in 1 L of h20

Answer 17

0.7-1.2 mg/ mL h2o

Question 18

How soon after mechanical debridement with a toothbrush you will typically find a mature dental plaque?

Answer 18

4-9 days!

Question 19

Because WHICH RESTORATIVE MATERIAL?? wear easily, they are unsuitable to for restoring:
Proximal contacts
Stress-bearing areas

Answer 19

silicate cements (never heard of this shit)

Question 20

WHAT THE FUCK? In which of the following cell layers does the nerve PLEXUS of RASCHKOW reside?

Answer 20

The cell-free layer (love this shit: The nerve plexus of Raschkow is located central to the cell-free zone. It is a plexus of myelinated nerve fibers located between the core of the pulp and the cell-rich zone. Axons of the Raschkow plexus lose their myelin sheath (but not their Schwann cells) as they penetrate the cell-rich and cell-free zones to make synaptic contact with the odontoblast cell body in the pulp or odontoblastic process within the dentinal tubule.)

Question 21

The plexus of _______ monitors painful sensations as well as mediation of inflammatory events and subsequent tissue repair.

Answer 21

Raschkow

Question 22

There are two types of nerve fibers that mediate the sensation of pain: _______ - Myelinated neves that conduct rapid and sharp pain sensations
_______ - Thinner, non-myelinated nerves involved in dull aching pain

Answer 22

A-fibers - Myelinated neves that conduct rapid and sharp pain sensations (TYPE A people are more sharp)
C-fibers - Thinner, non-myelinated nerves involved in dull aching pain

Question 23

The A-fibers (mainly A-_____ type) are located in the PERIPHERY of the pulp, where they are in close association with the odontoblasts and extend fibers to many but not all dentinal tubules.

Answer 23

A-delta

Question 24

The ___- fibers typically terminate in the pulp tissue proper, either as free nerve endings or as branches around blood vessels.

Answer 24

C-fibers

Question 25

Dentinal or smear plugs are composed of:

Answer 25

the debris from the smear layer

Question 26

LOLLOLOLOLOL: The radiant exposure for a curing light producing 1000 mW of power with a spot size of 2 cm², and an exposure time of 40 seconds _______ mWJ/cm².

Answer 26

20,000 mWJ/cm2

Question 27

Materials with ______ filler contents exhibit LOWER WATER absorption values than materials with ______ filler content.

Answer 27

HIGHER filler…. lower filler

Question 28

The most important reason to place a restoration is to

Answer 28

aid in plaque control

Question 29

________ lesions are lesions that cover two surfaces of a tooth.

Answer 29

compound

Question 30

A carious lesion that covers three surfaces on a single tooth is known as a _______ lesion.

Answer 30

COMPLEX

Question 31

A lesion known as a ________ lesion is a lesion created from a previous lesion that has been restored and is also known as recurrent caries

Answer 31

SECONDARY

Question 32

A ______ lesion is a lesion that covers one surface of a tooth.

Answer 32

simple

Question 33

The optimum absorption of energy of camphorquinone is at ____ nm which is why a narrow spectrum of wavelength is required in the polymerization of composites.

Answer 33

465 nm

Question 34

Fluoride ions can replace the ______ ions during the calcification stage of tooth development, which results in a structure that is more compact and resistant to caries.

Answer 34

hydroxyl

Question 35

__________ (NOT ________) release ALCOHOL as a by-product during their setting reaction.

Answer 35

Condensation silicones (NOT addition silicones)

Question 36

The rubber dam should be punched ___ mm IN WHICH DIRECTION? to the designated tooth for Class V restorations, enabling the rubber dam to completely cover the area to be isolated and making sub-gingival placement easier if needed.

Answer 36

1mm FACIAL

Question 37

The lethal dose for most adult humans is estimated at ___-___g (which is equivalent to ____ - ____ mg/kg elemental fluoride/kg body weight).

Answer 37

5-10g….20-50mg/kg

Question 38

Optimal concentration of Fluoride for communal water is _____, but this varies w/ temperature.

Answer 38

1ppm

Question 39

Adult lethal dose of F- is ___ - ___ w/ avg of __-__g

Answer 39

2.5-10g avg of 4-5g

Question 40

The accepted minimal LETHAL dose is __mgF/kg body weight

Answer 40

5mgF/kg body weight