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Tooth loss is a process in which one or more teeth come loose and fall out. Tooth loss is normal for deciduous teeth (baby teeth) , when they are replaced by a person's adult teeth . Otherwise, losing teeth is undesirable and is the result of injury or disease, such as dental avulsion , tooth decay , and gum disease .
Fractured teeth. Teeth in the fracture line of the jaw bone; Teeth which cannot be restored endodontically. [10] [11] Prosthetics; teeth detrimental to the fit or appearance of dentures. [12] Head and neck radiation therapy, to treat and/or manage tumors, may require extraction of teeth, either before or after radiation treatments.
Amelogenesis imperfecta, which occurs in between 1 in 718 and 1 in 14,000 individuals, is a disease in which the enamel does not fully form or forms in insufficient amounts and can fall off a tooth. [42] In both cases, teeth may be left more vulnerable to decay because the enamel is not able to protect the tooth. [43]
One of the consequences may be an adult tooth intercepting with a baby tooth, causing premature loss or wrong positioning. This can be due to either the absence of neighboring teeth acting as a guide during eruption or the lack of space in the jaw for them to erupt into because of malocclusion.
An enamel fracture is when the outermost layer of the tooth is cracked, without damaging the inner layers including the dentine or pulp. This can happen from trauma such as a fall where the teeth are impacted by a hard object causing a chip to occur. Enamel fracture of tooth 11 on the incisal, biting, surface
Turner's hypoplasia or Turner's tooth is a presentation of enamel hypoplasia that normally affects only a single tooth. Its causes can be the same as other forms of enamel hypoplasia, but it is most commonly associated with trauma to a primary maxillary central incisor and the subsequent developmental disturbance of the underlying permanent ...
Abnormal tooth position, such as tooth crowding, giving inadequate cover of one or more teeth by the jaw bone. [1] Piercings in the lip or tongue that wear away the gum by rubbing against it. [8] [9] Intentional gingival retraction. For example, the adult tooth may not grow out of the gum, and to remedy this, a procedure called an exposure is done.
When the tooth is knocked out, this normal blood supply is cut off and within 15 minutes [22] most of the stored metabolites have been depleted and the cells will begin to die. Within one to two hours, enough cells will die that rejection of the tooth by the body at a later time is the usual outcome.