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  2. Hypodontia - Wikipedia

    en.wikipedia.org/wiki/Hypodontia

    Orthodontic space closure [69] [80] is a way of using orthodontics in order to close spaces in the mouth where the teeth are missing. The ideal age for definitive orthodontic treatment is early adolescence but it is important to consider the patient's age, severity of hypodontia, patient expectations and their commitment to treatment. [81]

  3. Hyperdontia - Wikipedia

    en.wikipedia.org/wiki/Hyperdontia

    Dental surgery. Hyperdontia is the condition of having supernumerary teeth, or teeth that appear in addition to the regular number of teeth (32 in the average adult). They can appear in any area of the dental arch and can affect any dental organ. The opposite of hyperdontia is hypodontia, where there is a congenital lack of teeth, which is a ...

  4. Axenfeld–Rieger syndrome - Wikipedia

    en.wikipedia.org/wiki/Axenfeld–Rieger_syndrome

    Axenfeld–Rieger syndrome is a rare autosomal dominant [2] disorder, which affects the development of the teeth, eyes, and abdominal region. [3]Axenfeld–Rieger syndrome is part of the so-called iridocorneal or anterior segment dysgenesis syndromes, [4] which were formerly known as anterior segment cleavage syndromes, anterior chamber segmentation syndromes or mesodermal dysgenesis.

  5. Human tooth development - Wikipedia

    en.wikipedia.org/wiki/Human_tooth_development

    Human tooth development. Tooth development or odontogenesis is the complex process by which teeth form from embryonic cells, grow, and erupt into the mouth. For human teeth to have a healthy oral environment, all parts of the tooth must develop during appropriate stages of fetal development.

  6. Shovel-shaped incisors - Wikipedia

    en.wikipedia.org/wiki/Shovel-shaped_incisors

    Shovel-shaped incisors. Shovel-shaped incisors and non-shovel-shaped incisors. 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. [1]

  7. Human tooth - Wikipedia

    en.wikipedia.org/wiki/Human_tooth

    Human teeth function to mechanically break down items of food by cutting and crushing them in preparation for swallowing and digesting. As such, they are considered part of the human digestive system. [1] Humans have four types of teeth: incisors, canines, premolars, and molars, which each have a specific function.

  8. Anodontia - Wikipedia

    en.wikipedia.org/wiki/Anodontia

    Anodontia is the congenital absence of teeth and can occur in some or all teeth; whereas partial anodontia (or hypodontia), involves two dentitions or only teeth of the permanent dentition (Dorland's 1998). Approximately 1% of the population has oligodontia. [1]

  9. Kallmann syndrome - Wikipedia

    en.wikipedia.org/wiki/Kallmann_syndrome

    1:30,000 (males), 1:125,000 (females) Kallmann syndrome (KS) is a genetic disorder that prevents a person from starting or fully completing puberty. Kallmann syndrome is a form of a group of conditions termed hypogonadotropic hypogonadism. [ 1 ] To distinguish it from other forms of hypogonadotropic hypogonadism, Kallmann syndrome has the ...