Dental Materials 1 Question and answers correctly solved 2024/2025
3 views 0 purchase
Course
DENTURES,DX AND TX PLANNING
Institution
DENTURES,DX AND TX PLANNING
Dental Materials 1 Question and answers correctly solved 2024/2025 Dental Materials 1: Final Exam
Dental Cement - correct answer - Few materials in dentistry are used as frequently as dental cements
- No single cement is universally acceptable and fulfills all applications
- The cement chos...
Dental Materials 1: Final Exam
Dental Cement - correct answer ✔- Few materials in dentistry are used as
frequently as dental cements
- No single cement is universally acceptable and fulfills all applications
- The cement chosen should be the right balance between performance and
handling characteristics
Purpose of Cements - correct answer ✔- Retain a restoration or fixed
prosthodontics in the mouth
- Act as a restorative material
Pulpal Protection - correct answer ✔- Cavity varnish-acts as a protective
barrier between tooth and restoration
- Low-strength base/liner-barrier between pulp and restoration when pulp
exposure is suspected
- High-strength base/liner-provides thermal insulation and support for
restorations
- Buildup- acts as a foundation before final restoration is placed on tooth
Mechanical support
Reinforces remaining tooth structure
,Two Categories of Cements - correct answer ✔- Luting Cements:
Achieve retention by filling the interface between the restoration and tooth
- Bonding (or adhesive) Cements:
Stronger than luting cements
Fill the interface and provide micromechanical retention between tooth
substrate and the resin-based cement and restorative materials
Luting, Bonding, Cementation - correct answer ✔- Good wettability
- Thin film thickness
thin enough to flow into a film thickness of 0.25 μm or less.
- Low viscosity
- Uses
Permanent
Temporary
Orthodontic Bands and Brackets - correct answer ✔- Retained for months,
even years
- Cements with fluoride often used
Restorations - correct answer ✔- Permanent-Cements are not often used as
permanent restorations due to low strength
GI is exception
- Temporary, provisional and intermediate-Cements that are mixed to a
secondary consistency to provide an interim restoration
Surgical Dressings - correct answer ✔- Provide protection and support for
the surgical site and help prevent bleeding
,- Mixed to a soft, putty like consistency
- Mechanical retention
- Dispensed
Chemical-cured
Light-cured
Properties of Dental Cements - correct answer ✔- Strength-resistance to
deformation/fracture under applied force
Good compressive strength
Limited tensile strength
Resin cements are strongest
Weakest is zinc oxide eugenol
- Solubility-tendency to dissolve into oral fluids
Most cements dissolve over time in the mouth
Resin cements are closest to insoluble
- Viscosity and film thickness-ability to flow under pressure
- Biocompatibility and anticariogenic (fights cavities)properties- cements must
be safe to use on patients and careful attention to pulpal irritation must be
considered
- Retention and adhesion
Mechanical adhesion- interlocking of one material to another
Chemical adhesion-occurs at the molecular level
- Esthetics- cements come in various shades and opacities
- Radiopacity-cement shows on radiograph
, - Mixing-manufacturers' recommendation
- Working and setting times
- Self-etch and total-etch-to achieve good bonding
- Light-curing, self-curing/dual-curing
- Loading the restoration
Technique
- Removal of excess cement
Must be removed
Consistency
- Cement-associated peri-implant disease
- Cleanup, disinfection, and sterilization
- Considerations during instrumentation
Zinc Oxide Eugenol - correct answer ✔- For temporary and permanent
temporary and permanent cementation
- Brand names-ZOE
- Powder=zinc oxide
- Can be eugenol (calming to the pulp) or non eugenol
- Predetermined ratio of powder to liquid by using the powder scoop; ratio is 1
drop liquid to 1 the powder scoop; ratio is 1 drop liquid to 1 scoop powder
- Can mix on paper pad or glass Can mix on paper pad or glass slab
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Academia199. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.