DENTAL IMPLANTS DISPLACED INTO THE MANDIBULAR CORPUS: A MINI-REVIEW

F. Tricca¹, S.R. Tari¹, S. Benedicenti², S. A. Gehrke³ , F. Inchingolo⁴ , A. Scarano¹

¹ Department of Innovative Technologies in Medicine and Dentistry, University of Chieti-Pescara, Chieti, Italy
² Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
³ Universidad Católica de Murcia (UCAM), Murcia, Spain
⁴ Department of Interdisciplinary Medicine, Section of Dental Medicine, University of Bari “Aldo Moro”, Bari, Italy

Correspondence to:

Annals of Stomatology 2024 May-August 4(2): 73-77
https://doi.org/10.69129/stomatol/2024v4iss2_3

Received: 25 April 2024 Accepted: 29 May 2024

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Abstract

Although dental implant surgery is considered a somewhat predictable procedure, unforeseen accidents can occur, particularly in the posterior areas where the trabecular density is lower than the anterior. In the posterior mandible, poor bone density, loss of cortical engagement, and differences in bone quality between alveolar and basal bone could undermine the success of the treatment, resulting in a subsequent implant migration to the medullary bone marrow.  Inadequate surgical technique/planning, overworking of the implant bed, improper management of implant procedures along with systemic disease (osteopenia or osteoporosis), as well as the presence of lesions or cysts, can contribute to the development of the complication. To maximize bone engagement avoiding implant displacement, several precautions have been proposed. Treatment varies according to the depth of the displaced implant. In the case of superficial displacement above the inferior alveolar nerve, the crestal approach is the treatment of choice. When encountering deep displacement, a lateral approach is recommended as it provides better visibility and an improved operation field for implant retrieval.

Keywords: bone marrow defect, complication, displaced implant, focal osteoporotic, mandibular corpus