Chapter 5 Developmental Disorders Flashcards
Ankylogossia
Extensive adhesion of the tongue to the floor of the mouth or the lingual aspect of the anterior portion of the mandible.
Ankylosed teeth
Teeth that are fused to the alveoalar bone, a condition especially common with retained decidous teeth.
Anodontia
Congential lack of teeth
Anomaly
Marked deviation from normal, especially as a result of congentical or hereditary defects
Commissure
The site of union of corresponding parts.
Concresence
Condition in which two adjacent teeth become united by cementum
Congential disorder
Disorder that is present at an exisitng from the time of birth
Cyst
Abnormal sac or caivty lined by epitheulim and surrounded by fibrous connective tissue
Dens invaginatus (Dens in dente)
Tooth with a tooth, developmental anomaly that results when the enamel organ invaginates into the crown of a tooth before mineralization.
Dentinogeneiss
Formation of dentin
Differentiation
Distinghushing of one tissue from another
Dilaceration
Abnormal bend or curve as int he root of a tooth
Fusion
Union of two adjacent tooth germs
Gemination
Twinning, when a single tooth germ attempts to divide, resuliting in the incomplete formation of two teeth.
Hypodontia
Partial anodontia, the lack of one or more teeth
Impacted teeth
Teeth that cannot erupt into the oral cavity because of phsical obstruction
Macrodontia
Abnormally large teeth
Macrognathia
Enlarged jaw
Microdontia
Abnormal small teeth
Multilocular
Radiographic appreance in which many cirucalr radioucencies exist, can appear as soap bubble like or honeycomb like
Nodule
Small solid mass that can be detected through touch
Oligodontia
Subcaategory of hypodontia in which 6 or more teeth are missing
Predilection
Dispositon in favor of something; preference
Proliferation
Multiplication of cells
Stomoduem
Embroynic invagination that becoems the oral cavity
Supernumerary
Excess of normal or regualar number as in teeth
Adnexal
Relating to skin appendages, such as sweat glands, sebaceous glands, and hair follicles.
Amelogenesis
The formation of enamel.
Cementogenesis
The formation of cementum.
Dens evaginatus
An accessory enamel cusp found on the occlusal surface of a tooth. This developmental anomaly occurs most often on mandibular premolars. 
Distodens
An extra (fourth) molar tooth. It is the second most common supernumerary tooth. 
Embedded teeth. 
Teeth that do not errupt because of a lack of erruptive force.
Ghost cell. 
An epithelial cell with eosinophilic cytoplasm but lacking a nucleus, seen in calcifying odontogenic cysts. 
Hypercementosis
Excessive cementum on the roots of teeth.
Hyperdontia
An increased number of teeth. 
Hypoplasia
The incomplete development of an organ or tissue.
Mesiodens
The most common supernumerary tooth found between the maxillary central incisors. It can be unerupted or errupted. The crown has a conical shape.
Micrognathia
Reduced jaw size. 
Nonodontogenic
Not related to tooth development. 
Odontogenic
Tooth forming. 
Operculum
With regard to dentistry, a flap or covering of soft tissue that forms over a partially impacted tooth.
Pseudocyst
An abnormal cavity that resembles a true cyst but is not a pathologic cavity and is not lined with epithelium. 
Sistrunk procedure
Name for surgical procedure used for treatment of a thyroglossal duct cyst. 
Succedaneous
Replacing or substituting for something else; often used when referred to the permanent tooth
Syndrome
A group of signs and symptoms that occur together in one condition. 
Unilocular
A term used to describe the radiographic appearance of a single rounded compartment or locule.
