Dentistry Embryology and Histology 27-52

Hyoid Arch

The second brachial arch, which forms the styloid process, stapes of the ear, stylohyoid ligament, and part of the hyoid bone.

Lining Mucosa

The mucous membrane that covers the inside of the cheeks, vestibule, lips, soft palate, and underside of the tongue and acts as a cushion for underlying structures.

Maxillary Arch

A composite structure of the natural dentition or residual ridge of the upper jaw/maxilla. The upper jaw.

Mandibular Arch

The lower jaw.

Masticatory Mucosa

The Oral Mucosa that covers the hard palate, dorsum of the tongue, and Gingiva.

Modeling

Bone changes that involve deposition and resorption of bone and occur along articulations as they increase in size and shape to keep up with the growth of surrounding tissues, and is also known as displacement.

Odontoblasts

Cells that form dentin.

Odontogenesis

The formation of new teeth.

Osteoblasts

Cells that form bone.

Osteoclasts

Cells that reabsorb bone.

Periodontium

Structures that surround, support, and are attached to the teeth.

Preimplantation Period

The stage of development that occurs during the first week after fertilization.

Prenatal Development

The stage of human development that starts at pregnancy and ends at birth.

Primary Cementum

Cementum that covers the root of the tooth and is formed outward from the cementodentinal junction for the full length of the root.

Primary Dentin

Dentin that forms before eruption and makes up the bulk of the tooth.

Primary Palate

The shelf that separates the oral and nasal cavities.

Pulp Chamber

The space occupied by pulp.

Remodeling

The growth and change in shape of existing bone that involves deposition and resorption of bone.

Resorption

The body's processes of eliminating existing bone or hard tissue structure.

Secondary Cementum

Cementum that is formed on the apical half of the root and is also known as cellular cementum.

Secondary Dentin

Dentin that forms after eruption and continues at a very slow rate throughout the life of the tooth.

Specialized Mucosa

The mucous membrane on the tongue in the form of lingual papillae, which are structures associated with sensation of taste.

Stomodeum

The primitive mouth.

Succedaneous

Permanent teeth that replace primary teeth.

Tertiary Dentin

Dentin that forms in response to irritation and appears as a localized deposit on the wall of the pulp chamber, and is also known as reparative dentin.

Zygote

A fertilized egg.