Dental Embryology: Tooth Development & Eruption

These flashcards cover key vocabulary terms and definitions from the lecture on Dental Embryology, focusing on tooth development and eruption stages.

Successional Lamina

The embryonic tissue that forms permanent teeth located lingually to primary teeth.

Ectomesenchyme

Connective tissue that arises from neural crest cells, which differentiates into the connective tissues of the head and face.

Odontogenesis

The process of tooth development that occurs in various stages during embryonic and fetal periods.

Inner Enamel Epithelium (IEE)

The layer of cells that differentiates into ameloblasts during the bell stage of tooth development.

Reduced Enamel Epithelium (REE)

The structure formed from the flattening of the outer and inner enamel epithelium that aids in the eruption of teeth.

Dental Sac

The structure that develops from mesoderm and forms the cementum, periodontal ligament, and part of the alveolar bone.

Dentinoenamel Junction (DEJ)

The junction between the dentin and enamel of a tooth.

Amelogenesis

The process of enamel formation by ameloblasts.

Hertwig's Root Sheath (HERS)

Structure that shapes the root and induces dentin formation in the root area during tooth development.

Eruptive Stage

The phase that begins with root development and involves the eruption of the tooth into the oral cavity.

Cemento-enamel junction (CEJ)

The area where cementum and enamel meet at the tooth root.

Mesial Drift

The natural movement of teeth towards the midline of the dental arch as they wear.