Initial radiographic examination and pre-operative clinical status. (A) Initial panoramic radiograph showing the relationship between the donor tooth (incompletely erupted maxillary right third molar with approximately two-thirds root development) and the recipient site (mandibular right second molar). (B) Periapical radiograph showing extensive secondary caries under resin restoration extending to subcrestal level and periapical radiolucency in the distal root apex area of the mandibular right second molar. (C) Access opening for endodontic treatment revealed severe distal tooth structure loss extending subgingivally at the distal aspect of the mandibular right second molar.
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