Shovel-shaped incisors - Wikipedia
Shovel-shaped incisors (or, more simply, shovel incisors) are incisors whose lingual surfaces are scooped as a consequence of lingual marginal ridges, crown curvature, or basal tubercles, either alone or in combination.
Genetic Mutation Behind Shoveled Teeth May Have Been Key …
2018年4月24日 · The researchers discovered almost all Native Americans had shoveled incisors prior to the arrival of Europeans. Today, nearly 40 percent of Asian people share this dental trait.
Shovel-shaped incisors - Wikiwand
Shovel-shaped incisors (or, more simply, shovel incisors) are incisors whose lingual surfaces are scooped as a consequence of lingual marginal ridges, crown curvature, or basal tubercles, either alone or in combination.
A Common Variation in EDAR Is a Genetic Determinant of Shovel-Shaped ...
2009年10月9日 · Shovel shape of upper incisors is a common characteristic in Asian and Native American populations but is rare or absent in African and European populations. Like other common dental traits, genetic polymorphisms involved in …
The evolution of shovel shaping: Regional and temporal variation …
Shovel shaping is the occurrence of a basin on the lingual surface of the incisor caused by the development of any of three features of the tooth: marginal ridges, basal tubercles, and curvature, either alone or in combination.
Shovel-shaped incisors - London Dental Specialists
Shovel-shaped incisors (or, more simply, shovel incisors) are incisors whose lingual surfaces are scooped as a consequence of lingual marginal ridges, crown curvature, or basal tubercles, either alone or in combination.
Shovel-shaped incisors and the morphology of the enamel-dentin …
One of the most common morphologies associated with human upper incisors is that of shovel-shaping. An ordinal framework has been developed to score the expression of shovel-shaping in the central and lateral upper incisors, from absent (0) to extremely shoveled (7).
Shovel-shaped incisors and associated invagination in some
Abstract. Shovelling of the incisors is considered to be a polygenic inheritable trait. Shovelling differs considerably between groups of racial populations but is relatively stable within each group. Presence or absence of shovelling helps in racial identification and in exploration of ancestry.
VARIATIONS IN THE FREQUENCY OF SHOVEL-SHAPED INCISORS …
One such characteristic is the presence of structural formations referred to as shovel-shape, manifested by the prominence of the mesial and distal ridges enclosing a central fossa in the lingual surface of incisor teeth, differentiating them from types without the shovel character.
(PDF) Shovel-shaped incisors and the morphology of the enamel …
2011年5月20日 · One of the most common morphologies associated with human upper incisors is that of shovel-shaping. An ordinal framework has been developed to score the expression of shovel-shaping in the...
- 某些结果已被删除