Table of Contents
- 1 How do you prepare a Class 2 cavity?
- 2 What is the most common drawback of amalgam restoration?
- 3 What is a Class II cavity?
- 4 What are the advantages and disadvantages of an amalgam filling?
- 5 What type of solution is amalgam?
- 6 What does class 2 mean in dentistry?
- 7 What is the difference between Class II restorations with amalgam and composite?
- 8 What are the steps in cavity preparation after GV blacks classification?
How do you prepare a Class 2 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 the most common drawback of amalgam restoration?
Amalgam Fillings Disadvantages
- It can cause teeth discoloration. Amalgam fillings are usually silver fillings that can get darker as time passes.
- It can cause sensitive teeth.
- It can weaken the teeth.
- Your teeth may get stained.
What are three contraindications for amalgam restorations?
The contraindications for the clinical use of dental amalgam can be listed as teeth where (1) esthetics is a high priority for the patient, (2) extensive destruction has occurred, or (3) very small cavities need to be restored.
What is isthmus in Class 2 cavity preparation?
The transition between the occlusal and proximal cavity is termed isthmus. This is the narrowest place of preparation and it is of fundamental significance for retention of the filling.
What is a Class II cavity?
Class II. These cavities occur on the surfaces between the molars and premolars and are not visible to the human eye.
What are the advantages and disadvantages of an amalgam filling?
Amalgam fillings are relatively inexpensive when compared to other filling options. The dental work can be completed in just one visit. The fillings are very strong, which is especially important for back teeth that must withstand extreme bite forces.
What is a amalgam restoration?
Amalgam Restoration Amalgam restorations have been used to restore decayed and damaged teeth for over 150 years. Most people refer to amalgam fillings as ‘silver’ fillings because of their color when first place.
What is a Class 2 restoration?
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 type of solution is amalgam?
solid solution
Amalgam is a solid solution in which solute is a liquid and solvent is a solid. Complete answer: Several metals form amalgams with mercury metal. Amalgams are alloys of mercury with other metals.
What does class 2 mean in dentistry?
Class II: Class II is where the lower first molar is posterior (or more towards the back of the mouth) than the upper first molar. In this abnormal relationship, the upper front teeth and jaw project further forward than the lower teeth and jaw.
How long does a Class 2 filling take?
In this study the average treatment time for Class II composite resin restoration was 41.8 minutes.
What is a Class II cavity preparation?
Operative Dentistry: Class II Cavity Preparation Introduction A Class II carious lesion develops apical to the contact area on the proximal surfaces of posterior teeth. The procedure for the removal of the carious lesion is the same as that of a class I. The first step is the development of the ideal cavity preparation.
What is the difference between Class II restorations with amalgam and composite?
Traditionally, Class II restorations were done with dental amalgam. Over the last 15 years, amalgam use has (obviously) sharply declined while composite use has risen higher and higher. Amalgam offered lots of advantages in Class II situations. Primarily, amalgam’s success was largely independent of contamination with oral fluids.
What are the steps in cavity preparation after GV blacks classification?
The Steps in Cavity preparation after the modifications made in GV Blacks Classification: 1. Obtaining the outline form: “the form of the area of the tooth surface to be included within the outline or enamel margins of the finished cavity” 2.
How many walls are there in a Class II cavity?
Each of it has four walls that aids in retention. Locks: They are given in proximal box of class II cavity and are indicated mainly for amalgam restorations. They are given in dentin either in the walls of the proximal box or in the occlusal box at the line angles which the pulpal wall of the cavity makes with the occlusal wall.