Sinus Floor Augmentation Using the Bone Ring Technique: A Long-term Case Report

DOI
  • YOSHITAKE Yoshihiro
    Itoh Dent-Maxillofacial Hospital Kyushu Branch (Kyushu Implant Research Group)
  • NARIMATSU Ikue
    Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, aculty of Dental Science, Kyushu University
  • YOSHITAKE Hiromi
    Itoh Dent-Maxillofacial Hospital Kyushu Branch (Kyushu Implant Research Group)
  • TAKESAKI Naoya
    Itoh Dent-Maxillofacial Hospital Kyushu Branch (Kyushu Implant Research Group)
  • ESAKI Daisuke
    Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, aculty of Dental Science, Kyushu University
  • KAKU Toshio
    Kyushu Branch (Kyushu Implant Research Group)
  • MORINAGA Futoshi
    Kyushu Branch (Kyushu Implant Research Group)
  • HORIKAWA Tadashi
    Kyushu Branch (Kyushu Implant Research Group)
  • MATSUSHITA Yasuyuki
    Itoh Dent-Maxillofacial Hospital Kyushu Branch (Kyushu Implant Research Group) Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, aculty of Dental Science, Kyushu University
  • ITOH Takatoshi
    Itoh Dent-Maxillofacial Hospital Kyushu Branch (Kyushu Implant Research Group)
  • AYUKAWA Yasunori
    Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, aculty of Dental Science, Kyushu University

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Other Title
  • Bone ring techniqueを用いて上顎洞底挙上を行った長期経過の1症例

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<p>Extreme atrophy of the maxilla generally makes the fixation of implants difficult. In such cases, we have been applying the bone ring technique since 2010. This technique consists of five steps, as follows. First, the sinus membrane is lifted using a lateral approach. Second, the implant bed is prepared at the alveolar crest. Third, a ring-shaped bone block (8 mm outer diameter, 4 mm inner diameter) is harvested from the chin bone. Finally, the harvested bone and crestal bone were fixed with the implant body. In this technique, sinus floor augmentation and simultaneous implant placement can be completed in one surgery. The purpose of this case report was to describe observations from 11 years of follow-up examinations after conducting this technique.</p><p>The patient was a 68-year-old man who complained of difficulty in mastication because of loss of the upper posterior teeth. Sinus floor augmentation and simultaneous implant placement were performed using the bone ring technique. Decisive prosthetic rehabilitation was performed 10 months later. This patient was followed up for 11 years using annual cone beam computed tomography observation. No bone resorption around the implant tip and neck was observed in this technique. These results suggest that the bone ring technique is a highly predictable surgical technique.</p>

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