CHAPTER 8 PPT 1

COmposites

These are widely used for restoring carious lesions and defects due to esthetic appeal, conservation of tooth structure, and cost effectiveness

-Ceramic crowns

-PFM crowns

what are 2 composites mode durable resotrations are needed?

- Lesion severity

-Material quality

-Clinician skill

-Patient habits

in longevity of esthetic restorations, waht factors depend on it?

-Lithium disilicate

-Zirconia

in cermaic inlays and onlays, what materials are strong and durable?

Ceramic inlays and onlays

This composite is more conservative than a crown

Technique sensitive bonding

in ceramic inlays or onlays, one disadvantage of it is the type of bonding it uses

tRue

True or false: ceramic inlays and onlays have potential to fracture under extreme force

Inlay

This composite fits within the cusps of the tooth; replacing central chewing surface

onlay

This composite covers one or more cusps as well as the central portion of the tooth

Crown

This composite covers the entire tooth (cusps and sides)

Crown

This composite is often used when tooth is significantly damaged or weakened

Inlay

what composite is used when patient has: moderate decay or fracture (cusp not affected), replacement of large fillings, or wants esthetic alterantive to amalgam?

Onlay

What composite is used when patient has damage decay (invloves 1 or 2 cusps), prevents future fracture of weakened cusps, patient desires a conservative alternative to a crown

Crown

what composite is used when the patient have extensive tooth damage (large fracture), tooth has minimal remaining healthy structure, severe wea or esthetic need

-Ceramic (lithium dislicate)

-Composite resin

-Gold

What are the 3 types of composition of inlay?

-Ceramic ( lithium disilcate or zircona)

-Metal

-Gold

What is the composition of onlay?

-Ceramic (PFM, Lithium disilicate, Zirconia)

-Metal

-Gold

What are the 3 types of ocomposition of a crown?

10-15 years

How long does a inlay last?

10-20 years

How long does an onlay last?

10-25+ years

How long does a corwn last?

Inlay

In tooth reduction, what composite is least invasive

Onlay

In tooth reduction, what composite is moderate reduction, cusps involved, preseveres most of tooth

crown

In tooth reduction, it is the most invasive

An anterior esthetic restorative material

Define silicate cement

Acid-base reaction

Silicate cement material is sets by what type of reaction?

-Powder

-Liquid

in silicate cement, what are the 2 composition

-Silica (SiO2)

-Alumina (Al203)

-Fluoride salts (CaF2, NaF)

In silicate cement, what are the 3 types of material used in the powder form

-Phosphoric acid

-Water

-Buffers

In silicate cement, what are the materials in liquid

-Anterior restorations (Class 3 and 5)

-Temporary.transitional restoration

-FLuoride-releasing needs

In silicate cement, indicate for its uses

2-5 years

in silicate cement, how long does it last?

False: they are NOT suitable for permanent restorations

TRue or false: silciate cement is suitable for permanent restorations

Acrylic resin

This composite is synthenic resin used for restorations and prosthetics

Base material

Acrylic resin is commonly used as what?

-Dentures

-Temporary crowns

-Early composite resin

As base material (acrylic resin), what prosthesis can it be used on?

-Polymethyl Methacrylate (PMMA)

-Bis GMA-based resin

In composition of acrylci resin, the resin matrix is composed of two materials

benzoyl peroxide

in acrylic resin composiotn, what is the initiator or accelerator?

-Temporary crowns and bridges

-denture bases

-Custom trays

-Orthodontic appliances

-early composite restorations

list the indication of uses for acrylic resin

weeks to months

in longevity f acrylic resin, how long will temporary restorations last?

3-5 more

In longevity of acrylic resin, how does denture bases last?

-wear

-fracture

-discoloration

For acrylic resin denture bases, what is it prone to?

-Mechanical limitations

-tissue irritation risks

what are 2 components that make acrylci resin unsuitable for permanent restorations

-Composite resin

-Glass ionomer material

For acrylic resin, what 2 materials repalced acrylci resin in resotrative applications?

Flowable composite

This type of composite flows easily into cavity preparations

Flowable composite

This composite has a low viscosity (easily flow in cavity preparations)

40-70%

In flowable composite, what percentage is its filler content

-syringe/ needle tip delivery

-Self- leveling

what are the 2 types of handling of a flowable composite?

shorter lifespan = in high-stress areas

What is the lognevity of flowable composite?

Packable Composite

THis composite is high viscosity (thick and stiff)

70-85%

WHat is the filler content of packable composite

Higher- more rigid

What is the ealstic modulus of packable composite

Packable composite

This composite has lower polymerization shrinkage

-Class 1&2 posterior restoration

-areas needning bulk fill and strength

List indication of use for packable composite

-Need hand instruments (placement)

-More sculpable

in handling packable composite, what is required?

Load-bearing posterior restorations

what is the longevity of packable composite and what restorations are good for it?

-Microfill

-Nanofill

-HYBRID (MICRO/NANO)

3 types of acrylic resin

Microfill

This type of acrylic resin is small, smooth finish and low strength

0.04um

WHat is the size of the microfill

Nanofill

Thist ype of acrylic resin is nanosized particles and eexcellent polishability and strength

Hybrid

THis acrylic resin combines strength of various fillers for better handling and mechanical properties

Glass ionomer

This type of material is tooth colored resotrative material, chemically bonds to tooth surface

-Fluoride

-anticarcinogenic effect

What does glass ionomer release for and what is it for?

-Powder

-Liquid

-Optional modifiers

3 compositions of glass ionomer

-Fluroaluminosilicate

​

WHat type of powder is in glass ionomer

-Polyacrylic acid

-Copolymers in water

what are the 2 types of liquid present in glass ionomer

-Tartaric acid

-Resin

list the 2 types of optional modifiers in glass ionomer

-RMGIC (RESIN MODIFIED GLASSS IONOMER CEMENT)

Type of resin used in glass ionomer

-type 1 Luting cement

-type 2 restorative agent

-type 3 base/liner

-type 4 pit and fissure sealants

-type 5 orthodontic cementation

-type 6 core build-up material

-type 7 fluoride releasing light cured GIC

-type 8 Antraumatic restorative treatment (ART)

-type 9 Pediatric geriatric restorations

9 Types of glass ionomer

Type 1

What type of glass ionomer is for attach crown to tooth surface

Type 2

What type of glass ionomer is used for restorative cement.restoratiosn

Type 3

what type of glass ionomer cement is out underneath composite in deep cavity preparation

Type 5

What type of glass ionomer is used for braces

-Type VI

What type of glass ionomer is used after RCT

2-5 years

In longevity how long does convetion GIC last?

5-7 years

In longevity how long does RMGIC last?

Short-medium term

In longevity, how long does pediatric GIC last?