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Intentional reimplantation is a procedure in which an intentional tooth extraction is performed followed by reinsertion of the extracted tooth into its own alveolus. In this article, intentional reimplantation is described and discussed as a treatment approach for grossly carious immature mandibular second molar with periapical pathology. A 1 year follow up revealed the patient to be asymptomatic, the tooth to be functional and a recall film showed no evidence of root resorption. The indications for and limitations of intentional replantation as well as recommended literature on the subject are discussed.