Cavity Preparation Terminology and Concepts

The video tutorial covers the fundamentals of cavity preparation, including the types of cavities (simple, compound, and complex) and the classification of cavity walls into internal and external. It explains the characteristics of eggshell and pulpal walls, the naming conventions for external walls, and the concept of floor or seat in cavity preparation. The tutorial also differentiates between enamel and dentine walls, explains line and point angles, and discusses the features of strong enamel margins.

What defines a simple cavity in dental preparation?

• Involves two tooth surfaces

• Involves only one tooth surface

• Involves three or more tooth surfaces

• Involves the entire tooth

Which type of wall is parallel to the long axis of the tooth?

• Eggshell wall

• Pulpal wall

• Gingival wall

• External wall

What happens to the eggshell wall in a deep cavity scenario?

• It remains unchanged

• It becomes an internal wall

• It converts to an external wall

• It disappears

How are external walls named in cavity preparation?

• Based on the tooth's color

• Randomly

• According to the side they are on

• By the dentist's preference

What is the role of the floor or seat in cavity preparation?

• To connect internal and external walls

• To support the tooth's root

• To resist occlusal forces

• To enhance the tooth's appearance

What distinguishes an enamel wall from a dentine wall?

• The material it is made of

• Its thickness

• Its location in the tooth

• Its color

What is a line angle in dental terminology?

• The angle of the tooth's root

• The angle of the tooth's crown

• The meeting point of three surfaces

• The junction of two surfaces along a line

What is a point angle in cavity preparation?

• The junction of two surfaces

• The meeting point of three surfaces

• The angle of the tooth's crown

• The angle of the tooth's root

What is the importance of a strong enamel margin?

• To improve the tooth's color

• To increase the tooth's size

• To prevent enamel rod fracture

• To enhance the tooth's shape

What is the cave or surface angle?

• The junction of the cavity and unprepared surface

• The angle of the tooth's root

• The angle of the tooth's crown

• The junction of two internal walls