Oral Ana Lec #4

What are the objectives of dental anatomy?

Understand dental structure relationships, clinical significance, and tooth shape; describe permanent tooth morphology; discuss teeth and support structure relationships.

What does dentition refer to?

The arrangement and type of teeth in the mouth.

What are the classes of human dentition?

Incisors, Cuspids, Bicuspids, Molars.

How many sets of dentitions do humans have?

Two sets: Deciduous (20 teeth) and Permanent (32 teeth).

What is the transitional phase in dentition?

When both baby and permanent teeth are present, known as mixed dentition.

What are the types of incisors?

Central and Lateral.

How many incisors are in each arch?

2 per arch.

What do incisors do?

Cut food.

What is the canine tooth also known as?

Cuspid.

Where are cuspids located?

Angles of the mouth, 3rd from the midline.

How many cuspids are there per arch?

2 per arch (1 per quadrant).

What do cuspids do?

Cut, tear, pierce, and hold.

How many bicuspids are in each arch?

4 per arch.

What do bicuspids do?

Cut, tear, crush, hold, and grind.

Where are molars located?

At the back of the mouth.

How many cusps do molars typically have?

4 to 5 cusps.

What do molars do?

Grind and chew food.

What does homodont mean?

Same type of teeth.

What does heterodont mean?

Different types of teeth.

What is a monophyodont species?

One set of teeth for life.

What is a diphyodont species?

Two sets of teeth: baby and permanent.

What is a polyphyodont species?

Multiple sets of teeth that keep replacing.

What does nomenclature refer to?

The naming system in dentistry.

What is the maxilla?

The upper jaw.

What is the mandible?

The lower jaw.

What is the pre

maxilla?

What is dentition?

The arrangement of natural or artificial teeth.

What are dental arches?

The upper (maxilla) and lower (mandible) jaws.

What is deciduous dentition?

The baby teeth that shed off (20 teeth).

What is permanent dentition?

The adult teeth (32 teeth).

What are succedaneous teeth?

Permanent teeth that replace baby teeth.

What are accessional teeth?

Teeth that come in without replacing others (like molars).

What is the midline in dentistry?

The line that divides the mouth into left and right.

What is the alveolus?

The bone that surrounds the roots of teeth.

What are anterior teeth?

The front teeth (incisors and canines).

What are posterior teeth?

The back teeth (next to the cheeks).

What does superior/cranial mean?

Towards the head.

What does inferior/caudal mean?

Away from the head.

What does convex mean?

Outward shape.

What does concave mean?

Inward curve.