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Dental caries (cavities), described as "tooth decay", is an infectious disease which damages the structures of teeth. [43] The disease can lead to pain, tooth loss, and infection. Dental caries has a long history, with evidence showing the disease was present in the Bronze, Iron, and Middle ages but also prior to the neolithic period. [44]
Dental anatomy is also a taxonomical science: it is concerned with the naming of teeth and the structures of which they are made, this information serving a practical purpose in dental treatment. Usually, there are 20 primary ("baby") teeth and 32 permanent teeth, the last four being third molars or " wisdom teeth ", each of which may or may ...
Tales of the Tooth Fairies (French: Souris Souris) is a children's television programme created by Françoise Caspan. It was co-produced by Siriol Productions , La Fabrique, EVA Entertainment, Cologne Cartoon, and Sofidoc S.A. for WDR and France 3 .
They're prominently featured in episodes of the animated series The Sylvester and Tweety Mysteries ("I Gopher You") and Duck Dodgers ("K-9 Kaddy" and "Old McDodgers"), which in the latter, they are reinvented as green-furred, six-limbed Martian gophers. The Goofy Gophers made a cameo appearance in Bah, Humduck!
Teeth affected by regional odontodysplasia nevAmelogenesis imperfecta is an autosomal dominant disease characterized by a defect in dental enamel formation. Teeth are often free of enamel, small, misshapen, and tinted brown. The cause of these deformities is due to a mutation in enamel in expression.
The four first premolars are the most commonly removed teeth, in 48.8% of cases, when teeth are removed for orthodontic treatment (which is in 45.8% of orthodontic patients). The removal of only the maxillary first premolars is the second likeliest option, in 14.5% of cases. [10]
It was theorized that positive selection for shovel-shaped incisors over the spatulate incisors is more commonly found within cultures that used their teeth as tools due to a greater structural strength in increased shovel-shaped incisors. [2] In some instances, incisors can present a more pronounced version of this called double shovel-shaped.