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The right deciduous maxillary lateral incisor is known as "D", and the left one is known as "G". [2] The international notation has a different system of notation. Thus, the right deciduous maxillary lateral incisor known as "52", and the left one is known as "62". [3] Maxillary lateral incisors of permanent and primary teeth are marked in red.
Incisors are divided further into central and lateral incisors. Among premolars and molars, there are first and second premolars, and first, second, and third molars. The side of the mouth in which a tooth is found may also be included in the name. For example, a specific name for a tooth may be "permanent maxillary left lateral incisor."
Schematic of maxillary lateral incisors in the human mouth for both permanent and primary teeth. Maxillary lateral incisor agenesis (MLIA) is lack of development of one or both of the maxillary lateral incisor teeth. In normal human dentition, this would be the second tooth on either side from the center of the top row of teeth. The condition ...
The maxillary teeth are the maxillary central incisors (teeth 8 and 9 in the diagram), maxillary lateral incisors (7 and 10), maxillary canines (6 and 11), maxillary first premolars (5 and 12), maxillary second premolars (4 and 13), maxillary first molars (3 and 14), maxillary second molars (2 and 15), and maxillary third molars (1 and 16).
The most commonly involved tooth in localized microdontia is the maxillary lateral incisor, which may also be shaped like an inverted cone (a "peg lateral"). [3] Peg laterals typically occur on both sides, [2] and have short roots. [2] Inheritance may be involved, [2] and the frequency of microdontia in the upper laterals is just under 1%. [1]
In Caucasian studies mandibular second premolars and maxillary lateral incisors are most often absent. [6] Several UK studies have found the lower second premolar to be most commonly absent. [ 93 ] [ 94 ] Studies from Asian populations report that the mandibular incisor is most commonly absent.
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.
Young children may have from zero to eight incisors depending on the stage of their tooth eruption and tooth development. Typically, the mandibular central incisors erupt first, followed by the maxillary central incisors, the mandibular lateral incisors and finally the maxillary laterals. The rest of the primary dentition erupts after the ...