scholarly journals Endoscopically controlled flapless transcrestal sinus floor elevation with platelet-rich fibrin followed by simultaneous dental implant placement

Medicine ◽  
2018 ◽  
Vol 97 (17) ◽  
pp. e0608 ◽  
Author(s):  
Zhenzhen Liu ◽  
Chunyan Li ◽  
Jing Zhou ◽  
Xiaolin Sun ◽  
Xue Li ◽  
...  
Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1471
Author(s):  
Wilhelmus F. Bouwman ◽  
Nathalie Bravenboer ◽  
Christiaan M. ten Bruggenkate ◽  
Francis A. Eijsackers ◽  
Najada Stringa ◽  
...  

This study evaluates the radiological changes in tissue height after maxillary sinus floor elevation (MSFE) using three types of calcium phosphate ceramics over a period of up to 5 years after dental implant placement. In 163 patients, MSFE was performed. Three groups of patients were distinguished and treated based on the type of calcium phosphate ceramic used and radiologically evaluated: 40 patients with β-tricalcium phosphate (β-TCP), 76 patients with biphasic calcium phosphate (BCP) 20% hydroxyapatite (HA)-80% β-TCP, and 47 patients with BCP 60% HA-40% β-TCP. Radiological measurements were performed on panoramic radiographs at several time points up to 5 years after dental implant placement. After MSFE, a slow decrease in tissue height measured over time was seen in all three study groups. Resorption of the grafted bone substitutes was more prominent in β-TCP than in BCP ceramics with an HA component (60/40 and 20/80). Loss of tissue height after 5 years was lowest in BCP 60/40 and highest in β-TCP. This radiological study shows a predictable and comparable behavior of the slow decrease in tissue height over time for all three types of calcium phosphate ceramics used in MSFE. The fraction of HA in calcium phosphate ceramics and dental implant loading seems to be beneficial for tissue height maintenance after MSFE.


2021 ◽  
Author(s):  
Atsushi Fujita ◽  
Chonji Fukumoto ◽  
Tomonori Hasegawa ◽  
Yuta Sawatani ◽  
Hitoshi Kawamata

Abstract Background: The present study examined the effectiveness of high-purity macro/microporous beta-tricalcium phosphate (HPMM β-TCP) as a bone grafting material for maxillary sinus floor elevation by morphometric and histopathological, histomorphometric evaluations.Methods: Ten maxillary sinus floor elevation procedures using 100% HPMM β-TCP were performed on 10 patients. Morphometric evaluation was carried out by CT imaging immediately after augmentation and prior to dental implant placement after 7 months.Histopathological and histomorphometric evaluation were carried out by bone biopsy retrieval at the time of dental implant placement 7 months after sinus floor elevation. Results: All 10 sinus floor elevations were successful. Morphometric evaluation by CT images showed that the vertical height and the volume gained by sinus floor elevation decreased 7 months after surgery. Histopathological evaluation by bone biopsy retrieval specimens showed no signs of inflammation at the newly formed bone area and the native alveolar bone area. New bone formation was observed at the cranial side from the native alveolar bone. The newly formed bone had a trabecular structure and was in intimate contact with the HPMM β-TCP material. Histomorphometric evaluation by bone biopsy retrieval specimens revealed an average new bone volume of 33.97%±2.79% and an average residual HPMM β-TCP volume of 15.81%±4.52%.Conclusions: In this study, HPMM β-TCP showed the osteoconductive properties for vertical augmentation of the atrophied maxilla by means of a maxillary sinus floor elevation procedure allowing subsequent dental implant placement after a 7-month healing period.


Author(s):  
Omur Dereci ◽  
Nesrin Saruhan ◽  
Gorkem Tekin

Objectives: To evaluate the efficacy of the combination of platelet-rich fibrin (PRF) and mineralized bone allograft on the volume of the new bone formation in the sinus floor augmentation of the severely atrophic residual alveolar crest with simultaneous dental implant placement. Materials and Methods: All clinical and radiological data of patients treated with sinus floor augmentation using the combination of PRF and demineralized bone allograft with simultaneous dental implant placement between 01/04/2013 and 01/03/2020 were retrieved from the archives. The main inclusion criterion for the study was a residual ridge height less than 2 mm. The volume of the maxillary sinus cavity was measured by a software program on pre-operative and post-operative cone beam computerized tomography (CBCT) sections. The graft volume was calculated by subtracting pre-operative and post-operative total sinus volume. Residual and post-operative ridge heights were measured by the software program on the mid-coronal and mid-sagittal sections of pre-operative and post-operative CBCT images. Results: Eighteen patients with 26 sinus augmentations were included in the study. Forty-six dental implants were placed simultaneously with sinus floor augmentation. The follow-up periods of cases varied between 19 and 29 months. All cases showed new bone regeneration on axial, coronal and sagittal sections of post-operative CBCT data. The mean volume of newly regenerated bone was calculated as 2.1(±0.9) ml. Post-operative ridge heights was significantly increased compared to pre-operative residual ridge heights (p<0.05). There was no sign of a relationship between residual and post-operative ridge heights (p>0.05). Conclusion: The PRF and demineralized bone allograft combination used in sinus floor augmentation may provide healthy new bone that supports simultaneously placed dental implants in function in the severely atrophic alveolar crests with a residual ridge height less than 2 mm. Keywords: Sinüs floor augmentation ; allograft ; cone-beam computed tomography ; dental implant


2019 ◽  
Vol 34 (5) ◽  
pp. 1195-1201 ◽  
Author(s):  
Bo Molemans ◽  
Simone Cortellini ◽  
Reinhilde Jacobs ◽  
Wim Teughels ◽  
Nelson Pinto ◽  
...  

2008 ◽  
Vol 19 (11) ◽  
pp. 1163-1170 ◽  
Author(s):  
Peter Schleier ◽  
Gerrit Bierfreund ◽  
Stefan Schultze-Mosgau ◽  
Franziska Moldenhauer ◽  
Harald Küpper ◽  
...  

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