residue on newly erupted teeth that may become extrinsically staned
cells that produce dentin and differentiate from the outer cells of the dental papilla
Reduced Enamel Epithelium
layers of flattened cells overlying the enamel surface resulting from a compression of the enamel organ.
eruption that takes place that occurs as we age, when the gingiva recedes and no actual tooth movement takes place.
the actual vertical movement of the tooth
From the dental sac, this tissue begins to form the periodontal ligament adjacent to the newly formed cementum
This is formed from the central cells of the dental papilla and is surrounded by the newly formed dentin
Dentinocemental Junction DCJ
Apposition of cementum over the dentin creates this
Cementoid surrounding cementocytes califies becoming this
Undifferentiated cells of the dental sac come in contact with the newly formed surface of root dentin forming this
apposition of cementum in the root area.
root developmental disturbance (to many roots) caused by trauma or pressure
This disturbance in root development results in either distorted root(s) or crown angulation in a formed tooth
portion of the root of multirooted teeth where the root originates from the crown.
This type of growth of HERS causes the root trunk to divide into two or three roots of multirooted teeth
Hertwig's Epithelial Root Sheath HERS
membrane that surrounds and shapes the roots of teeth during development
-determines length, shape, thickness, and number of roots
-disintegration of HERS triggers cementogenesis in the root
Most cervical portion of the enamel organ that is responsible for root develpment.
This takes place after the crown is completely shaped and the tooth is starting to erupt
The space in dentin that contains or at one time contained an odontoblastic process.
the odontoblasts will leave attached cellular extensions in the length of the predentin
tapered end of ameloblast that faces the disintergrating basment membrane and is created as the ameloblasts move away from the dentin interface
cells that differentiate from preameloblasts and that will form enamel during amelogenesis.
Formation of dentin. Dentin forms first; the mesenchymal tissue is called dental papilla. Dental papilla becomes dental pulp after dentin is formed.
induces dental papilla cells and secretes enamel matrix
Through this process the nuclei of the IEE moves to the position farthest away from the basement membrane
This is an extracellular substance that is partialy mineralized, yet serves as a framework for later mineralization
In the future the outer cells of the dental papilla will differentiate into odontoblasts and will mature into this
Outer Enamel Epithelium OEE
This will serve as a protective barrier for the rest of the enamel organ during enamel production
During this stage of tooth development the cells begin to differentiate into 4 layers
primordium of the tooth, which consists of the enamel organ, dental papilla, and dental sac.
condensed mass of ecotmesenchyme surrounding the enamel organ, cementum periodontal ligament, alveolar bone increasing amount of collagen fibers fomring around the enamel organ
Dental papilla arises from:
Enamel Organ arises from
A condensation of ectomesenchymal cells under the dental lamina that eventually becomes the dental pulp
Unequal proliferation of bud cells and ectomesenchyme condenses around each cap which is the precursor for the dental papilla and sac
Growth from the oral epithelium that gives rise to the tooth buds.
This structure separates the oral epithelium and the ectomesenchyme within the stomodeum
Mesenchymal tissue must influence this tissue in order to initiate odontogenesis
This is the physiological process involved in the initiation stage of tooth development
This is the physiological process involved in the bud Stage of tooth development
Proliferation, Differentiation and morphogenesis
This is the physiological process involved in the Bell and Cap stage of tooth development
Induction and Proliferation
This is the physiological processes involved int eh Apposition stage of tooth development
this is the physiological process involved in the Maturation stage of tooth development
2nd stage of tooth development with the growth of the dental lamina or buds into the ectomesenchyme.
4th stage of odontogenesis, in which differentiation occurs to its ruthest extent and the enamel organ assumes a bell shape.
stage of tooth development during which enamel matrix is produced by the ameloblasts.
stage of tooth development during which enamel matrix completes its mineralization process.