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The most striking example of this is in Paranthropus robustus, with half of all primary molars, and a quarter of permanent molars, displaying PEH defects, thought to be caused by a specific genetic condition, amelogenesis imperfecta. [1] Pitting enamel hypoplasia, in an individual with amelogenesis imperfecta.
Enamel hypoplasia manifests in a variety of ways depending on the type of AI an individual has (see below), with pitting and plane-form defects common. [4] The teeth have a higher risk for dental cavities and are hypersensitive to temperature changes as well as rapid attrition , excessive calculus deposition, and gingival hyperplasia . [ 5 ]
Turner's hypoplasia or Turner's tooth is a presentation of enamel hypoplasia that normally affects only a single tooth. Its causes can be the same as other forms of enamel hypoplasia, but it is most commonly associated with trauma to a primary maxillary central incisor and the subsequent developmental disturbance of the underlying permanent ...
Plane-form enamel hypoplasia is a dental condition that is distinguished by defects in the teeth enamel, that can occur due to genetic or environmental factors. It is common for the disease to occur during the developmental stages of the teeth, and childhood illnesses, such as respiratory infections, are often linked to disturbance of the enamel formation [5] [6].
All enamel surfaces of the teeth are affected and surfaces subject to attrition show wear. Brown stain is frequently a disfiguring feature Severe: 5: All enamel surfaces are affected and hypoplasia is so marked that the general form of the tooth may be affected. The major diagnostic sign of this classification is discrete or confluent pitting.
Acne symptoms and signs. Acne blemishes are most common on the face, chest, back, shoulders and neck, but they can appear almost anywhere. With acne, you might have pimples, blackheads, papules ...
Pitting enamel hypoplasia; Plane-form enamel hypoplasia; Primary enamel cuticle; T. Turner's hypoplasia This page was last edited on 26 September 2021, at 23:02 ...
Signs and symptoms [ edit ] This condition is characterised by sensorineural hearing loss, enamel hypoplasia of the secondary dentition, nail abnormalities and occasional or late-onset retinal pigmentation abnormalities.