What is the process and principles of cavity preparation?
Steps of cavity preparation 1- Outline form 2- Resistance and Retention form 3- Convenience Form 4- Removal of remaining Caries 5- Finishing of cavity walls 6- Toilet of the cavity.
How do you prepare a Class 2 amalgam cavity?
Envision the cavity preparation outline and extent:
- Always keep the bur perpendicular to the long axis of the tooth.
- Follow the anatomical grooves of the tooth
- Leave a small “enamel shell” interproximally to protect the adjacent tooth from iatrogenic damage.
What is a Class 2 restoration in dentistry?
A Class II restoration has to recreate not only the natural contour of the tooth, but also the corresponding proximal contact. Many dentists consider this point, in particular, to be the most demanding part of the treatment.
What is Axiopulpal line angle?
ax·i·o·pul·pal (ak’sē-ō-pŭl’păl), Referring to the line angle formed by the junction of an axial and pulpal wall of a tooth cavity.
What do I know about procedure of amalgam restoration?
When placing dental amalgam, the dentist first drills the tooth to remove the decay and then shapes the tooth cavity for placement of the amalgam filling. Next, under appropriate safety conditions, the dentist mixes the encapsulated powdered alloy with the liquid mercury to form an amalgam putty.
What is a amalgam restoration?
a·mal·gam res·to·ra·tion (ă-malgăm restŏr-āshŭn) A dental restoration made of an alloy of an element or metal with mercury.
What are the properties of amalgam?
Tarnishing is the loss of luster from a metal or alloy surface because of the formation of a surface coating. The alloy remains unchanged and the mechanical properties also remain the same. A sulfide layer formed on the surface causes amalgam to tarnish….Chemical Properties.
| Silver | 40-60% |
|---|---|
| Zinc | 1% |
What are the steps for an amalgam filling?