Correction of malpositioned implants through periodontal surgery and prosthetic rehabilitation using angled abutment

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Avila, Érica Dorigatti de [UNESP]
Molon, Rafael Scaf de [UNESP]
Barros-filho, Luiz Antônio Borelli de [UNESP]
Andrade, Marcelo Ferrarezi de [UNESP]
Mollo Júnior, Francisco De Assis [UNESP]
Barros, Luiz Antônio Borelli de [UNESP]
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When dental implants are malpositioned in relation to the adjacent teeth and alveolar bone or in an excessive buccal or lingual position, the final prosthesis rehabilitation impairs the peri-implant health of the gingival tissues and the aesthetics of the patient. Thus, the purpose of this case was to report and discuss a multidisciplinary protocol for the treatment of a compromised maxillary tooth in a patient with an abscess in his right central incisor due to an excessive buccal implant position. The patient presented with an implant-supported provisional restoration on his right maxillary central incisor and a traumatic injury in his left central incisor. The treatment protocol consisted in (i) abutment substitution to compensate the incorrect angulation of the implant, (ii) clinical crown lengthening, (iii) atraumatic extraction of the left central incisor, and (iv) immediate implant placement. Finally, (v) a custom abutment was fabricated to obtain a harmonious gingival contour around the prosthetic crown. In conclusion, when implants are incorrectly positioned in relation to the adjacent teeth, associated with soft-tissue defects, the challenge to create a harmonious mucogingival contours may be achieved with an interdisciplinary approach and with the placement of an appropriate custom abutment.
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Case Reports in Dentistry, v. 2014, p. 1-9, 2014.