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What causes tooth root resorption?

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Quick Answer

A study on external root resorption in the journal Schweiz Monatsschr Zahnmed states that trauma, periodontitis, orthodontic treatment, internal bleaching, cysts, tumors or stimuli from a necrotic dental pulp may cause tooth root resorption. The study also states that resorption may involve a physiological process of resorption of deciduous teeth or a pathological process of resorption of permanent teeth.

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Full Answer

Tarek El-Bialy of the University of Alberta's Graduate Orthodontic Program explains that tooth root resorption means shortening or erosion of the teeth and involves the adverse outcomes of dental trauma, orthodontic tooth movement and dental replantation or transplantation. Everyday Health indicates that the majority of patients who go through orthodontic therapy do not get root resorption. Everyday Health also explains that many teeth with root resorption still function properly and may last for many years or even a lifetime despite resorption. El-Bialy states that orthodontically induced inflammatory root resorption differs from other types of tooth root resorption, and treatment protocol for this type always involves a root canal treatment or extraction of these teeth in severe cases and prosthetic replacement. However, Everyday Health explains that a dentist must analyze whether a tooth with root resorption has the strength to act as a bridge support as part of a fixed bridge when it calls for this treatment.

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