HOSA "Dental Terminology" - Chapter 3

Deciduous

First set of teeth, "Primary", counted as A-T

Dentition

Tooth arrangement

Succedaneous

Permanent teeth, "Secondary", counted 1-32

Odontogenesis

Formation and origin of the tooth

Bud Stage

First stage of tooth development, "Initiation"

What occurs during the bud stage?

5-6th week in utero, dental lamina (organs of future teeth) develops

Cap Stage

Second stage of tooth development, "Proliferation"

What occurs during the cap stage?

4-5th month in utero, small buds appear at different time periods until all deciduous teeth are apparent

3 parts of tooth bud:

dental organ, dental papilla, dental sac

Bell Stage

Third stage of tooth development, "differentiation"

What occurs during the bell stage?

Changes in the tooth and bud shape and makeup through histodifferentiation and morphodifferentiation

Histodifferentiation

Branches into different tissues

Morphodifferentiation

Changes into another shape

Apposition

Fourth stage of tooth development, mineral salts and organic matter set down in place for tissue and tooth formation

Calcification

Fifth stage of tooth development, hardening and setting of tooth tissues, continues until development is accomplished (2 years)

Eruption

sixth stage of tooth development, "cutting of the teeth". Tooth moves toward the oral cavity and enters through the tissues

Attrition

seventh (final) stage of tooth development, wearing away occurs where teeth interact through mastication and speech (chafing, abrasion)