Podcast
Questions and Answers
Class ____ (4 classes) indicate an amalgam restoration
Class ____ (4 classes) indicate an amalgam restoration
I, II, V, VI
Are amalgam restorations indicated for small or large caries?
Are amalgam restorations indicated for small or large caries?
large
Amalgam or Composite for a restoration to be done on a large occlusal contact area?
Amalgam or Composite for a restoration to be done on a large occlusal contact area?
Amalgam
A preparation for an amalgam restoration has to be completely dry.
A preparation for an amalgam restoration has to be completely dry.
If caries extend onto the root surface, amalgam or composite?
If caries extend onto the root surface, amalgam or composite?
When you have to restore a tooth that is to be used as an abutment for an RPD, amalgam or composite?
When you have to restore a tooth that is to be used as an abutment for an RPD, amalgam or composite?
Amalgam bonds to teeth well.
Amalgam bonds to teeth well.
Amalgam is brittle.
Amalgam is brittle.
In restoration preparation, what is the cavosurface margin?
In restoration preparation, what is the cavosurface margin?
Where do you find pits and fissures?
Where do you find pits and fissures?
How wide does a class I amalgam restoration prep need to be?
How wide does a class I amalgam restoration prep need to be?
What cavosurface line angle is required for class I amalgam preps?
What cavosurface line angle is required for class I amalgam preps?
Match the following walls of class I amalgam prep:
Match the following walls of class I amalgam prep:
What are the advantages of lathe cut and spherical amalgam powder?
What are the advantages of lathe cut and spherical amalgam powder?
In 1929, the ADA set restrictions on the composition of dental amalgams which stated that Copper (Cu) could not be more than ___% of the amalgam.
In 1929, the ADA set restrictions on the composition of dental amalgams which stated that Copper (Cu) could not be more than ___% of the amalgam.
What advantages does the new admixed dental amalgam introduced in the 1960s have?
What advantages does the new admixed dental amalgam introduced in the 1960s have?
What are the benefits of spherical high copper amalgam?
What are the benefits of spherical high copper amalgam?
Flashcards
Class I Restoration
Class I Restoration
A restoration that addresses pits and fissures, typically on the occlusal surfaces of teeth.
Class II Restoration
Class II Restoration
A restoration that targets the proximal surfaces of posterior teeth, where two teeth touch.
Class V Restoration
Class V Restoration
A restoration located in the gingival third on the facial or lingual surfaces of all teeth.
Class VI Restoration
Class VI Restoration
Signup and view all the flashcards
Amalgam: Large Caries
Amalgam: Large Caries
Signup and view all the flashcards
Amalgam: Occlusal Contacts
Amalgam: Occlusal Contacts
Signup and view all the flashcards
Amalgam: Root Surfaces
Amalgam: Root Surfaces
Signup and view all the flashcards
Amalgam: Dry Preparation?
Amalgam: Dry Preparation?
Signup and view all the flashcards
Amalgam: Abutments for RPDs
Amalgam: Abutments for RPDs
Signup and view all the flashcards
Amalgam Bonding
Amalgam Bonding
Signup and view all the flashcards
Amalgam Brittleness
Amalgam Brittleness
Signup and view all the flashcards
Cavosurface Margin
Cavosurface Margin
Signup and view all the flashcards
Class I Prep Width
Class I Prep Width
Signup and view all the flashcards
Class I Prep Angle
Class I Prep Angle
Signup and view all the flashcards
Class I Prep Walls
Class I Prep Walls
Signup and view all the flashcards
Amalgam: Lathe Cut
Amalgam: Lathe Cut
Signup and view all the flashcards
Amalgam: Spherical
Amalgam: Spherical
Signup and view all the flashcards
Study Notes
Amalgam Restorations Overview
- Class I restorations: Address pits and fissures, typically on occlusal surfaces.
- Class II restorations: Target proximal surfaces of posterior teeth.
- Class V restorations: Located in the gingival third on facial or lingual surfaces of all teeth.
- Class VI restorations: Found on the incisal edges or cusp tips.
Indications for Amalgam
- Recommended for large caries rather than small ones.
- Preferred for large occlusal contact areas over composite restorations.
- Suitable for root surfaces affected by caries.
Restoration Procedure Insights
- Amalgam restorations do not need the preparation site to be completely dry.
- Used as the preferred choice for teeth that will serve as abutments for removable partial dentures (RPDs).
Bonding and Material Properties
- Amalgam does not bond effectively to tooth structure; mechanical retention through preparation is essential.
- The brittleness of amalgam necessitates a minimum pulpal depth of 1.5 mm.
Cavity Preparation and Design
- Cavosurface margin: Intersection of cavity preparation and tooth's outer surface.
- Class I prep requires a 1 mm width to fit the smallest amalgam condensing tool.
- Class I restorations necessitate a 90-degree cavosurface line angle.
- Mesial and distal walls of Class I prep should be divergent, while buccal and lingual walls should be convergent.
Amalgam Material Composition
- Composed of liquid mercury and metal alloy powder, which can be:
- Lathe cut: More viscous, resists condensation, adapts well to walls, facilitates interproximal contacts.
- Spherical: Requires less mercury, sets quickly, offers smoother surfaces, reduced corrosion, and improved initial strength.
Historical Context and Advancements
- In 1929, the ADA restricted copper content in dental amalgams to a maximum of 6%.
- The introduction of admixed dental amalgam in the 1960s featured higher copper levels, providing advantages such as improved adaptation, strength, and reduced marginal ditching.
- Spherical high copper amalgam, known as unicompositional, is noted for being strong, containing less mercury, and yielding a smooth surface with minimal corrosion.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Dive into the essentials of amalgam restorations with these flashcards. Covering classifications, indications for use, and comparisons with composite materials, this quiz is designed for dental students and professionals. Strengthen your understanding of when and how to implement these restorations effectively.
