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The teeth should all fit on a line of occlusion which, in the upper arch, is a smooth curve through the central fossae of the posterior teeth and cingulum of the canines and incisors, and in the lower arch, is a smooth curve through the buccal cusps of the posterior teeth and incisal edges of the anterior teeth.
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.
Overbite is often confused with overjet, which is the distance between the maxillary anterior teeth and the mandibular anterior teeth in the anterior-posterior axis. "Overbite" may also be used commonly to refer to Class II malocclusion or retrognathia, though this usage can be considered incorrect. This is where the mesiobuccal cusp of the ...
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Sinodonty is a particular pattern of teeth characterized by the following features: The upper first incisors and upper second incisors are shovel-shaped, and they are "not aligned with the other teeth". [11] The upper first premolar has one root, and the lower first molar in Sinodonts has three roots (3RM1). [11] [5]
The gophers are small and brown with tan bellies and buck teeth. They both have British accents. Unnamed in the theatrical cartoons, they were given the names Mac and Tosh in the 1960s TV show The Bugs Bunny Show. [4] The names are a pun on the surname "Macintosh". They are characterized by an abnormally high level of politeness.
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In the late 1980s, Ethel was occasionally drawn with braces on her buck teeth. Although Ethel is usually portrayed as drab-looking and gawky, one story involving a makeover by Betty Cooper and Veronica Lodge in an attempt to attract Jughead's attention revealed her to be quite curvy and pretty (albeit still with buck teeth). [3]