Dental implants displaced into the mandibular corpus: clinical note

Scarano, Antônio; Lorusso, Felice; Oliveira, Pablo Santos de; Murmura, Giovanna

doi:10.15436/2379-1705.18.1804

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Few of these reports provide a detailed description of the circumstances under which the implant body became displaced. In the reports that do include such a description, however, the cause indicated is sudden loss of torque during insertion 3) , or displacement during cover screw setting, with a subsequent attempt at removal pushing the implant even deeper in 12,14) . These include two specific cases in which the initially inserted implant body was displaced into the mandibular bone and lost to sight.…”

Section: Factors Causing Implant Body Displacement In Mandiblementioning

confidence: 99%

“…The operators mistakenly believed that it had been sucked up into the suction tube, however, and therefore inserted a second implant body 1,11) . Factors causing an implant body to become displaced within the mandibular bone include bone quality and osteoporosis or other bone diseases, mistaken preoperative X-ray evaluation, and inadequate skills on the part of the operator 6,9,10,12) . In most cases, it is the cortical bone of the alveolar crest that is mainly responsible for initial implant fixation.…”

Section: Factors Causing Implant Body Displacement In Mandiblementioning

confidence: 99%

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Implant Body Displacement into Medullary Cavity of Mandible: A Case Report

Kobayashi

Sakamoto

Ito

et al. 2021

Bull. Tokyo Dent. Coll.

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One serious complication in implant surgery is displacement of the implant body into the surrounding tissue. This occurs only rarely in the mandible, however. This report describes a case of an implant body displacing into the medullary cavity of the mandible and discusses this in reference to the literature. The patient was a 72-year-old woman who was referred to our department at Tokyo Dental College Chiba Hospital (now Chiba Dental Center) by her regular dentist after an implant inserted in the left mandible in 2010 showed loosening in October 2016. Panoramic X-rays obtained at the initial examination revealed that 2 implants had been inserted into the left mandible, one on top of the other. Removal of both was recommended to prevent infection at the implant site and any potential effects on the alveolar nerve. In the absence of subjective symptoms other than implant loosening, however, the patient did not consent to this proposal. Therefore, only the broken abutment was removed. The patient was instructed to contact us immediately should infection or any other symptoms appear once the mucosa had healed, and the dental clinic that had referred her to us was requested to make her a set of dentures. To our knowledge, only 11 reports have been published to date describing displacement of an implant body into the mandible, and these address a total of just 20 cases. The possibility that an implant body in the mandible may become displaced must be kept in mind during treatment.

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Section: Factors Causing Implant Body Displacement In Mandiblementioning

confidence: 99%

Section: Factors Causing Implant Body Displacement In Mandiblementioning

confidence: 99%

Implant Body Displacement into Medullary Cavity of Mandible: A Case Report

Kobayashi

Sakamoto

Ito

et al. 2021

Bull. Tokyo Dent. Coll.

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“…In the case of mandibular displacement, there is a displacement to the bone marrow defect of mandibular body though it is not common [5][6][7][8][9][10][11][12][13][14][15]…”

Section: Introductionmentioning

confidence: 99%

Management of a dental implant displaced into the mandibular bone marrow space: Case reports

2019

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When an implant fixture is displaced to the bone marrow defect site of the mandible, damage to the inferior alveolar nerve may occur. To minimize postoperative side effects, an accurate radiological evaluation should be made and the best method of removal should be considered. Here, we report two cases of implant removal in patients referred to our hospital who had an implant fixture displaced by a mandibular bone marrow defect, and we also propose a standardized method for removal of the implant. Two patients were referred to our clinic with displacement of an implant fixture to the mandibular bone marrow space. For removal of the implant, a trapezoidal bone window was designed with the buccal cortical bone of the drilling hole as the superior margin. An osteotomy was performed on the cortical bone. The implant was gently moved upwards and removed. Healing was uneventful with no neurological complications.

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Importance of local and systemic factors in preventing implant displacement in the mandibular body: a scoping review of existing literature

Rosas-Díaz,

Guerrero,

Castillo-Andamayo

et al. 2024

BMC Oral Health

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Background The aim of this research was to analyse the current literature on displaced dental implants in the mandibular body, including local and systemic variables related to their cause, and to identify the most frequent location. Methods The study conducted a search of three databases (Pubmed, Scopus, and Web of Science) using specific index terms such as ‘dental implant’, ‘displacement’, ‘dislocation’, ‘displaced’, and ‘mandible’. The analysis focused on the direction of displacement and the characteristics of the bone tissue (bone quality, density, and quantity) in cases where dental implants were displaced. Results A total of 371 articles were obtained. Thirteen of these articles were selected and read in full. To define bone quality, the Lekholm and Zarb classification, modified by Rosas et al., was used. The type II-B bone, which is characterized by thick cortical bone surrounding cancellous bone with extremely wide medullary spaces, presented the largest number of complications. Twenty-two cases were found in which the displacement direction was horizontal. Of these, four were displaced vestibularly, fourteen lingually, and four remained in the center. Additionally, 24 cases presented vertical displacement, with 12 displaced towards the inferior border of the mandible, 9 towards the middle or adjacent to the inferior dental nerve canal, and 3 above the inferior dental nerve canal. Conclusion The accidental displacement of implants within the mandibular body is associated with various risk factors, including the characteristics of the bony trabeculum and the size of the medullary spaces. It is reasonable to suggest that only an adequate pre-surgical diagnostic evaluation, with the help of high-resolution tomographic images that allow a previous evaluation of these structures, will help to have better control over the other factors, thus minimizing the risk of displacement.

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Dental implants displaced into the mandibular corpus: clinical note

Cited by 4 publications

References 8 publications

Implant Body Displacement into Medullary Cavity of Mandible: A Case Report

Implant Body Displacement into Medullary Cavity of Mandible: A Case Report

Management of a dental implant displaced into the mandibular bone marrow space: Case reports

Importance of local and systemic factors in preventing implant displacement in the mandibular body: a scoping review of existing literature

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