Dental Liners, Bases, And Bonding Systems

Question 1

Dental material categories

Answer 1

Intermediate

Supplementary

Question 2

Intermediate

Answer 2

Includes liners, bases, and cement.

Question 3

Supplementary

Answer 3

Includes bonding and restorative agents.

Question 4

What stimuli can trigger an unfavorable response in the pulp?

Answer 4

Physical: electrical, thermal

Mechanical: trauma, hand piece

Chemical: dental material acid

Biological: saliva bacteria

Question 5

Dental liners

Answer 5

This material is laid in a thin layer that protect support from irritation cause my biological, chemical, mechanical, and physical elements.

Question 6

What is commonly used as a dental liner?

Answer 6

Calcium hydroxide

Question 7

Indications for using calcium hydroxide

Answer 7

Pulp chemical irritation is avoided because of it stealing capabilities.

Secondary dentin production is stimulated.

It can be used with all types of restorative materials.

Question 8

Placement of calcium hydroxide

Answer 8

Calcium hydroxide his place over the deepest portion of the Pulpo floor and only on dentin

Question 9

Varnish

Answer 9

A liquid consisting of one or more reasons and an organic solvents apply to the internal preparation structure.

Question 10

Varnish application process

Answer 10

Apply the varnish with a dry cotton pallet or micro brush.

Place a thin coating on the internal walls, floor, and margin of cavity preparation.

Allow the surface to air dry.

A second application is recommended.

Question 11

What are the indications to place dentin sealer

Answer 11

Can be used for treatment or prevention of hypersensitivity.

Can be used as an alternative to varnish.

Can be used and dentinal tubal sealing.

Can be used under all indirect restorations.

Question 12

What should you avoid when applying dentin sealer?

Answer 12

Do not apply too much material.

Avoid soft tissue contact.

Apply with a cotton tipped applicator.

Apply all over areas of exposed dentin.

Question 13

Types of base minerals

Answer 13

Zinc oxide eugenol.

Zinc phosphate.

Polycarboxylate.

Glass ionomer.

Question 14

Protective

Answer 14

Protects the pulp before large restoration

Question 15

Insulating

Answer 15

Thermal shock protection

Question 16

Sedative

Answer 16

Sooth pulp that has been irritated by decay or mechanical means

Question 17

What are dental sealant also known as?

Answer 17

Desensitizers

Question 18

Dental bonding

Answer 18

Create micromechanical retention between tooth structure and restoration

Question 19

Bonding agent

Answer 19

Enables the removal of less tooth structure before definitive restoration placement because minimal retentive features are needed.

Question 20

Direct bonding

Answer 20

Achieved by way of removal of the smear layer with etchant

Question 21

Etching system

Answer 21

Used in smear layer removal to prepare for bonding.

Question 22

Clinical applications for etching and bonding system:

Answer 22

Remove plaque and debris prior to the bonding process.

Remove the smear layer with the use of etchant.

Rinse and dry the tooth surface structure( avoid overseeing etched teeth.)

Cover all surfaces with bonding solution (too much bonding is better than too little)

Avoid contamination from saliva ( the entire procedure will need to be redone if contamination occurs.)

Allow for maturation of bonding material. (Maturation needs to occur before restoration is considered complete)

Question 23

Enamel bonding

Answer 23

Used when a bind is needed in the intact enamel surface.

Question 24

What is enamel bonding used for?

Answer 24

Orthodontic brackets, dental sealants, and resin bonded veneers and bridges.

Question 25

For an amalgam filling with a deep cavity what should be placed first?

Answer 25

Base

Question 26

Dental cements

Answer 26

This brittle material is made by mixing a liquid with a powder. It acts as a luring agent, protects or lines the cavity preparation.

Question 27

Type 1 classification

Answer 27

Luting agents, temporary or permanent cements.

Question 28

Type II Classification.

Answer 28

Restorative material, such as glass ionomer.

Question 29

Type III classification

Answer 29

Liners or bases placed with cavity preparation.

Question 30

Luting agents

Answer 30

Viscous material placed into dental prosthesis that secures the prosthesis securely to the tooth via chemical bonding.

Question 31

Permanent cements

Answer 31

This is used to bond gold and ceramic restorations. Such as inlays, onlays, crowns, bridges, veneers, orthodontic fixed appliances.

Question 32

Temporary cements

Answer 32

This is used until a restoration would need to be removed as a result of sensitivity or other symptoms. Also used for provisional coverage

Question 33

Mixing

Answer 33

Before mixing, follow the manufacturers directions. Measure the liquid and powder in the amount needed for use. Separate the powder and liquid to make space for mixing. Separate the powder into smaller portions. When increment sizes vary, smaller increments are incorporated first. Mix each portion of power into liquid and mix until consistent.

Question 34

Humidity

Answer 34

Premature exposure to warm temp or humidity can result in too much moisture in the mix or not enough water in the liquid.

Question 35

Powder to liquid ratio

Answer 35

Mixing incorrect amounts of water and powder will result in inconsistency

Question 36

Temperature

Answer 36

Some cements undergo an exothermic reaction.

Question 37

Types of cements:

Answer 37

Glass ionomer Composite resin Polycarboxylate Zinc phosphate

Question 38

Zinc oxide eugenol (ZOE)

Answer 38

Another type of cement, that comes as a paste or liquid.

Question 39

ZOE liquid

Answer 39

Eugenol, H2O, acetic acid, zinc acetate, and calcium chloride

Question 40

Powder ZOE

Answer 40

Zinc oxide, magnesium oxide, and silica

Question 41

Type I ZOE (paste)

Answer 41

Recommended for temporary restorations due to lack of strength.

Question 42

Type II ZOE (liquid/powder)

Answer 42

Used for permanent cementation of cast restorations due to strength and durability characteristics

Question 43

Polycarboxylate cement

Answer 43

Also known as polyacrylic cement. This material can be used as a cement for cast restorations, an insulation base under amalgam, or as an intermediate restoration

Question 44

Polycarboxylate liquid

Answer 44

Polycrylic acid, itaconic acid, maleic acid, tartaric acid, and water

Question 45

Polycarboxylate powder

Answer 45

Zinc oxide

Question 46

Glass ionomer liquid

Answer 46

Itaconic acid, tartaric acid, maleic acid, and water

Question 47

Glass ionomer powder

Answer 47

Zinc oxide, aluminum oxide, and calcium

Question 48

Glass ionomer type I

Answer 48

Used for cementing metal restorations and bonded orthodontic brackets

Question 49

Glass ionomer type II

Answer 49

Used for class V restorations of areas or recession.

Question 50

Glass ionomer type III

Answer 50

Designed for restoration liners or dentin bonding agents

Question 51

Glass ionomer benefits:

Answer 51

The powder is made up of acid soluble calcium. The slow release of fluoride helps inhibit recurrent decay. It is less irritating to the pulp than many other types of cement. It has lower solubility in the mouth. It adheres to a slightly moist tooth surface. It allows easier seating of restorations because it has a thin film thickness.

Question 52

What is composite resin used for?

Answer 52

Cement ceramic or resin onlays or onlays. Cement porcelain or ceramic veneers. Cement orthodontic bands. Bond orthodontic brackets. Cement all metal castings.

Question 53

What instruments can remove cement?

Answer 53

Mouth mirror Explorer Excavator Fulcrum Dental floss