Abstract : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
Sinus lift is a bone augmentation procedure that improves the alveolar crest height in an atrophic posterior maxilla. However, the regenerated bone volume can vary and generally has a tendency to decrease after sinus operation. This article describes nongrafted maxillary sinus lift using a bioresorbable unsintered hydroxyapatite combined with poly l-lactide (HA/PLLA) mesh plate device and dental implant placement in an atrophic posterior maxilla, after which continuous bone gain was observed around the implant apex during a postoperative follow-up period of 3 years.
A 60-year-old healthy female was referred to our department for dental implant therapy in the right posterior maxilla. Clinical examination revealed that the maxilla was edentulous from the right first premolar to the second molar region. Radiographically, atrophy of the maxillary alveolar ridge in the same tooth site was observed. Sinus membrane elevation and simultaneous implant placement were performed through the lateral approach. HA/PLLA mesh was utilized to maintain space under the elevated sinus membrane and as a fixation device to replace the bone window. Six months later, new bone was generated in the secluded space maintained under the elevated sinus membrane. When observed 42 months after the implant insertion, bone volume around the implant apex had increased in vertical direction under the HA/PLLA mesh plate device, and there was continuous bone formation in the sinus over time.
This nongrafted sinus lift procedure using an HA/PLLA mesh device attained predictable bone formation. Stable membrane elevation by an HA/PLLA device might induce long-term, continuous bone formation in the sinus.
Serial posts:
- Abstract : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Background : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Case presentation : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report [1]
- Case presentation : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report [2]
- Conclusions : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Consent : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Abbreviations : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- References : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report [1]
- References : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report [2]
- Acknowledgements : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Author information : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Additional information : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Rights and permissions : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- About this article : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant placement in an atrophic posterior maxilla: a case report
- Fig. 3. After the removal of the bone window, the membrane was lifted upward, and the dental implants were placed without grafting materials : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant
- Fig. 4. a Front view of the bone window with the HA/PLLA mesh plate device fixed by a screw. b Lower view of the bone window with the HA/PLLA mesh plate device fixed by a screw : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant
- Fig. 5. Clinical view of the repositioned bone window with the HA/PLLA mesh plate device : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant
- Fig. 6. Radiographic findings on cross-sectional computed tomography in the right second molar region after nongrafted sinus lift with simultaneous implant placement. a Immediately. b At 6 months. c At 42 months : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant
- Fig. 7. Radiographic findings on panoramic computed tomography after nongrafted sinus lift with simultaneous implant placement. a Immediately. b At 6 months. c At 42 months : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant
- Fig. 8. Postoperative panoramic radiograph taken about 3 years after implant loading : Continuous intra-sinus bone regeneration after nongrafted sinus lift with a PLLA mesh plate device and dental implant