Term
|
Definition
| arise from physical trauma, chemical trauma, biological agents, nutirion deficiencies, dysfunction, stress, and habits. |
|
|
Term
|
Definition
| arise from heredity, genetic mutations, and metabolic dysfunctions. |
|
|
Term
|
Definition
| Occur at or before birth, somtimes the result of heredity, and sometimes the condition does not become evident until years after birth. |
|
|
Term
|
Definition
| are conditions exhibiting some evidence of an inherited tendency, but such evidence is inconclusive |
|
|
Term
|
Definition
| are directly related to an individual's genetic make up |
|
|
Term
|
Definition
| Condition in which the teeth have formed too large for their arch |
|
|
Term
|
Definition
| Condition in which the teeth have formed too small for their arch |
|
|
Term
|
Definition
| A hereditary disturbance in which the pulp chambers are unusually large, especially in the roots. |
|
|
Term
|
Definition
| The hypocalcification of a single tooth, usually an incisor, from trauma or bacteria disturbing the ameloblastic layer which results in a hypoplasia of the enamel. |
|
|
Term
|
Definition
| A tooth within a tooth, or an invagination of the outer surface of the tooth crown. |
|
|
Term
|
Definition
| Occurs when a maxillary lateral incisor never forms a crwon and enamel never takes place |
|
|
Term
|
Definition
| Are irregularly shaped molars with poorly shaped cusps due congenital syphilis |
|
|
Term
|
Definition
When a tooth splits itself by spiltting the tooth crown.
Two results:
- Form twin teeth
- Become bifid (having two crowns) with a single root
|
|
|
Term
|
Definition
Notched incisors due to prental syphilis
|
|
|
Term
|
Definition
| When two or three adjacent tooth germs unite while developing and are joined at the dentin, either partially, or all the way down the root. |
|
|
Term
|
Definition
| Fusion of teeth along cementum. This occurs after the roots have formed, possibly by trauma, and most often occurs in maxillary molars. |
|
|
Term
|
Definition
| Refers to a tooth with a sharp bend or curve in the root of the crown, due to problems during development. |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Very short roots when compared with their crowns. |
|
|
Term
|
Definition
| Extra cusps on lingual surface |
|
|
Term
|
Definition
| Some crowns lack all their cuspps |
|
|
Term
|
Definition
Extra teeth which can be normal or abnormal
-Supplemental is a supernumerary that resembles a normal tooth
-Conical is a supernumerary that looks like a cone
-Tubercle is a supernumerary tooth that is very small |
|
|
Term
|
Definition
| Multiple or extra teeth resulting in abnormalities |
|
|
Term
|
Definition
| Extra tooth in the middle of the maxilla |
|
|
Term
|
Definition
| Extra tooth proximal to the molar. Distomolars are also calle fourth molars or paramolars. |
|
|
Term
|
Definition
| The condition of having too few teeth, includes all cases of congenitally missing teeth. Can be partial or full. |
|
|
Term
|
Definition
| Any condition that limits the enamel formation, leading to thin and pitted enamel. |
|
|
Term
|
Definition
| Hereditary condition marked by hypocalcification showing very thin enamel, which chips away easily. |
|
|
Term
|
Definition
| Resuslts from insufficient growth of enamel crystals. |
|
|
Term
|
Definition
| Normal enamel density, but enamel is very thin. |
|
|
Term
|
Definition
| Cracks in the enamel due to early trauma. |
|
|
Term
|
Definition
| Small areas of hypocalcified enamel at the DEJ, which extends 1/3 of the way through enamel. |
|
|
Term
|
Definition
| Odontoblasts trapped between ameloblasts. |
|
|
Term
| Dentinogenesis Imperfecta |
|
Definition
| When a tooth has a translucent hue so that the color of dentin is seen (gray, brown, or yellow). Dentin fills the entire tooth, including the pulp chambers and canals. The enamel tends to chip away from the dentin. Will occur in both primary and permanent teeth of the same patient. |
|
|
Term
|
Definition
| Similar to dentinogenesis imperfecta in that the dentin obliterates the pulp chamber. The tooth has normal color and the enamel does not chip away. |
|
|
Term
|
Definition
| Can result either from poorly calcified areas called dead tracts, or from odontoblasts that have died and left empty dentinal tubules. |
|
|
Term
|
Definition
| When tubules have filled up with dentin and appear transparent in the roots. |
|
|
Term
|
Definition
| Small, circular, calcified areas in the pulp. |
|
|
Term
|
Definition
| Epithelial root sheath cells remain and become ameloblasts, which form enamel on the roots. Pearls usually form in the bifurcation or trifurcation of roots. |
|
|
Term
|
Definition
| Defects during root formation cause accessory canals to form in apical region. |
|
|
Term
|
Definition
| Remaining cells of the Epithelial Root Sheath found in the periodontal space adjacent to the tooth. If mitotic division occurs later, periodontal cysts will develop. |
|
|
Term
|
Definition
| Deposition of excessive amounts of cementum, usually at the apex and along the entire surface of the root |
|
|
Term
|
Definition
| Hypercementosis associated with localized destruction of bone. |
|
|
Term
|
Definition
A tumorous anomaly of calcified dental tissue. (enamel, dentin, pulp and cementum)
-A Complex is a single mass of dentin, cementum and enamel in a large blob of unspecified shape.
-A Compound is several small masses resembling rudimentary teeth. |
|
|
Term
|
Definition
| Tetracycline use during crown formation results in yellow, brown or gray teeth. |
|
|
Term
|
Definition
| This is the discoloration in the primary teeth, green or brown. The child became jaundiced shortly after birth. Circulating pigments caused staining of the dental tissues that were developing during the first 3 months. Pigmentation is primarily in the dentin. |
|
|
Term
|
Definition
| A Form of enamel hypocalcification due to excessive amounts of fluoride during tooth development. Enamel fluorosis is evidenced by small white flecks to large opaque areas and/or brown spots on the surface of teeth. |
|
|
