Dental Terminology Part 1

What is the difference between the balancing side and the working side during mastication?

The working side is in contact, and the balancing side is not.

What kind of stone is used for secondary (master) casts for dentures?

Dental Stone (or Lab Stone)

Why is Dental Stone specifically used for dental casts?

Because it is more malleable and conducive to carving, allowing for fine details and precise work.

Where is the hamular notch located?

Distal to the maxillary tuberosity.

Describe Angle's Class 1 in terms of tooth position.

The mesiobuccal cusp of the maxillary first molar occludes with the buccal groove of the mandibular first molar.

During what step of denture fabrication is beading and boxing used?

During the pouring of the master model.

What are the water-powder ratios for dental stone and die stone?

Dental Stone: 100g powder to 30ml water; Die Stone: 100g powder to 22ml water.

What is the name given to the process whereby the body dissolves tissue that is no longer needed?

Resorption.

Name the three zones of the buccal or lingual portion of a posterior crown.

Occlusal, Middle, Cervical.

Which of Angle's classifications could be described as prognathic?

Class 3.

How many lobes does a mandibular first molar develop from?

5 lobes (corresponding to the number of cusps).

What is the name for a space between two teeth that is not caused by an extraction?

Diastema.

Provide the universal numbers of all teeth in the complete adult dentition which do not have distal contacts.

1, 16, 17, 32.

Name the bony structure which supports the teeth.

Alveolar Process.

Name the convexity on the cervical third of the lingual surface of a central incisor.

Cingulum.

Name the concavity on the lingual surface of a central incisor.

Lingual Fossa.

How can we tell if a poured model has reached its initial set?

It becomes warm due to the exothermic reaction.

Complete this word, which describes an impression material: Poly...

Polyvinylsiloxane.

What term do we use to describe the amount of opening between the upper and lower arches?

Vertical Dimension.