SINUS BONE GRAFT WITHOUT GRAFT MATERIALS: A CASE REPORT
SINUS BONE GRAFT WITHOUT GRAFT MATERIALS: A CASE REPORT
骨移植材を使用しない上顎洞骨移植:症例報告
katosika.dental
katosika.dental
We had believed that sinus bone graft needs living autogenous bone or other graft materials not alive for resisting air pressure that gradually resorbs the bottom the sinus as a result. However, can the fact that needs some graft materials be true?
Dr. Jensen wrote that …….in 1997, I observed a strange phenomenon in a maxillary fracture patient. A unilateral ossification of the maxillary antrum occurred following a Le Fort III fracture that had been treated the year before. I wondered how trauma around the antrum due to an impacted maxilla and the inferiorly displaced orbital rim could lead an ossified maxillary sinus…………This unusual finding remained a mystery to me for many years…….He (Phil Boyne) found that preservation elevated sinus membrane created a confined space in which bone had the potential to form. 1)
Until now, clinicians had found that maxillary sinus had a potential for bone reformations without any bone graft materials.2)3)
The case of non-smoker 49 years female patient shows below also sinus bone graft without bone graft material and implants placement simultaneously.
CT view of the patient. Little vertical bone and sinus membrane hypertrophy were observed in the right maxillary sinus. 患者のCT像。右側上顎洞底の垂直骨は乏しく、同粘膜の肥厚が観られた。 |
Pre-operative occlusal view of the patient. 術前の咬合面観。 |
Oval shape window was opened. Sinus membrane was elevated meticulously to contact the bone surface tightly. Care must be taken not to brake the membrane. 卵形の窓をあけた。同粘膜を剥離するとき強く骨面にそって破かないように注意する必要がある。 |
Occlusal view after the implants installed. インプラント埋入後の咬合面観。 |
After suture. 縫合後。 |
Suture after second operation. 2次手術後の縫合。 |
Peri-apical radiographic view at the surgery (upper figures) and 5 years follow-up (Lower).
It seems that apical part of the implants tents the sinus membrane toward bone formation around the implants.
デンタルX線写真、上が手術時下が5年後。インプラントの先端部が洞粘膜をテントして、骨形成につながっているように見える。
Panoramic view immediately after the surgery. 術後のパノラマX線像。 |
Panoramic view 5 years follow-up. 5年後のパノラマX線像。 |
Occlusal view 5 years follow-up. 5年追跡後の咬合面観。 |
患者さんの8年後のエックス線画像。インプラント周囲の骨形成は明らかである。
REFERENCES (参考文献)
CT view of the patient after 8 years around the three implants. |
REFERENCES (参考文献)
1. Jensen OT, Preface. In: Jensen OT, ed. The Sinus Bone Graft. Carol Stream,IL: Quintessence Publishing Co, Inc, 1999: ix-x.
2. Lundgren S, Andersson S, Gualini F, Sennerby L. Bone reformation with sinus membrane elevation: a new surgical technique for maxillary sinus floor augmentation. Clin Implant Dent Relat Res. 2004;6(3):165-173.
3. Hatano N, Sennerby L, Lundgren S. Maxillary sinus augmentation using sinus membrane elevation and peripheral venous blood for implant-supported rehabilitation of the atrophic posterior maxilla:
case series. Clin Implant Dent Relat Res. 2007 Sep;9(3):150-155.
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