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Case Reports
. 2025 Feb:127:110970.
doi: 10.1016/j.ijscr.2025.110970. Epub 2025 Jan 27.

Autogenous bone ring augmentation and simultaneous implant placement in the atrophic posterior maxilla: A case report

Nadim Sleman  1 , Ali Khalil  2
Affiliations
Case Reports

Autogenous bone ring augmentation and simultaneous implant placement in the atrophic posterior maxilla: A case report

Nadim Sleman et al. Int J Surg Case Rep. 2025 Feb.

Abstract

Introduction and importance: Restoring lost teeth in the posterior atrophic maxilla presents a significant challenge due to insufficient bone volume for implant placement. Simultaneous implant placement during lateral sinus lift is often considered, but the decision is typically based on the amount of existing bone. The aim of this study was to investigate the feasibility of simultaneous implant placement and maxillary sinus floor augmentation in the atrophic posterior maxilla using autogenous bone ring.

Case presentation: A 58-year-old man presented with teeth loss in the posterior upper jaw and significant sinus pneumatization on the left side, resulting in only 2.6 mm of available alveolar bone height. This limited the possibility of simultaneous implant placement. As a solution, lateral maxillary sinus floor augmentation using an autogenous bone ring was performed, along with the insertion of the implant.

Clinical discussion: Anatomical limitations in the atrophic posterior maxilla present significant challenges for implant placement, often necessitating a two-stage approach: the first stage involves maxillary sinus floor augmentation, followed by implant placement in the second stage after bone graft maturation. However, by employing lateral sinus floor elevation combined with immediate implant placement using autogenous bone ring, treatment time can be significantly shortened.

Conclusion: This clinical case provides a comprehensive demonstration of implant insertion in an atrophic maxilla utilizing a single-stage approach. It underscores the significant advantage of reducing overall treatment time by concurrently addressing both bone augmentation and immediate implant placement within a single procedural session. This approach not only shortens the treatment process but also enhances patient acceptance by minimizing the need for multiple interventions.

Keywords: Alveolar bone loss; Alveolar bone regeneration; Bone ring technique; Maxillary sinus floor augmentation; Maxillary sinus floor elevation; Simultaneous implant placement.

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Conflict of interest statement

Declaration of competing interest The authors declare that there is no conflict of interest.

Figures

Fig. 1
Fig. 1
extensive sinus pneumatization in the left posterior maxilla, resulting in severe alveolar bone height resorption at tooth #27.
Fig. 2
Fig. 2
The integrity of the Schneiderian membrane.
Fig. 3
Fig. 3
autogenous bone ring removal. a. Implant site preparation. b. Complete removal of the autogenous bone ring. c. Bone grafting of the mentum after autogenous bone ring removal. d. Autogenous bone ring.
Fig. 4
Fig. 4
Securing the bone ring to the dental implant through crestal bone.
Fig. 5
Fig. 5
One week postoperatively.
Fig. 6
Fig. 6
Bone graft maturation was evident six months postoperatively.
Fig. 7
Fig. 7
final prosthetic restoration.
Fig. 8
Fig. 8
A CBCT scan one year after prosthetic restoration showing stable status of the implant.
See this image and copyright information in PMC

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