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Molar incisor hypomineralisation (MIH) is a type of enamel defect affecting, as the name suggests, the first molars and incisors in the permanent dentition. [1] MIH is considered a worldwide problem with a global prevalence of 12.9% and is usually identified in children under 10 years old. [2]
Bottom teeth of a seven-year-old, showing primary teeth (left), a lost primary tooth (middle), and a fully erupted permanent tooth (right) Although tooth eruption occurs at different times for different people, a general eruption timeline exists. The tooth buds of baby teeth start to develop around 6 weeks of pregnancy. Adult teeth buds start ...
Affected teeth are highly sensitive to chemical and thermal irritants, and may also be difficult to obtain anesthesia. The causes of MIH are thought to be similar to those of other forms of enamel hypoplasia, but occur concurrently with crown development in the permanent molars and incisors (birth to approximately 3 years of age). [20]
“My jaw hurt so bad like someone had ripped l my teeth out.”) After an MRI revealed an infection at the surgical site, she had two follow-up surgeries and part of her skull was replaced with a ...
[15] [16] From roughly 7 years old thereafter, most children's permanent teeth would have undergone complete development (except their wisdom teeth), and therefore their susceptibility to fluorosis is greatly reduced, or even insignificant, despite the amount of intake of fluoride. [17]
Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, [1] including the gingiva (gums) and the dental follicle. [2] The soft tissue covering a partially erupted tooth is known as an operculum, an area which can be difficult to access with normal oral hygiene methods.
The signs of late congenital syphilis tend to reflect early damage to developing tissues that does not become apparent until years later, [20] such as Hutchinson's triad of Hutchinson's teeth (notched incisors), keratitis and deafness. [21] [22] Symptoms include: [21] Blunted upper incisor teeth known as Hutchinson's teeth, or mulberry molars [7]
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