Purpose: Evidence suggests that maxillary sinus floor augmentation via a lateral approach can be performed without positioning a bone graft inside, when one or more implants can be placed simultaneously. The aim of this study was to test if the placement of a porcine cortical bone layer underneath the sinus membrane can increase bone formation and implant stability. Materials and Methods: One hundred seventy-two patients with posterior maxilla atrophy needing implant rehabilitation were selected. Two hundred six sinus augmentation procedures were performed via a lateral approach, and 295 implants were placed in the same session of the sinus elevation surgery. In all the surgeries, a porcine cortical bone layer was placed underneath the sinus membrane, without using any graft material. After 6 to 7 months of healing, the implants were uncovered, then restored with porcelain-fused-to-metal crowns and monitored with a follow-up of 1 to 5 years. Results: The implant cumulative success rate was 95.2%, while the residual bone crest height changed from 2.67 ± 1.11 mm to 12.54 ± 1.42 mm, with an increase of 9.87 mm on average. Marginal bone resorption was 0.83 mm on average after 1 year of loading, while the mean implant stability measured at the moment of implant placement and 6 to 7 months later increased from an implant stability quotient (ISQ) of 62.61 ± 5.7 to an ISQ of 70.07 ±8.2. Conclusion:This study confirms the validity of the graftless sinus elevation surgery when simultaneous implant placement is performed. The use of a porcine cortical bone layer seems to increase, from a radiologic point of view, the amount of bone around the implants, reducing healing time, cost, and biologic complications for the patient. © 2020 by Quintessence Publishing Co Inc.

Graftless maxillary sinus floor augmentation with simultaneous porcine bone layer insertion: A 1-to 5-year follow-up study

Traini T.
Penultimo
;
2020-01-01

Abstract

Purpose: Evidence suggests that maxillary sinus floor augmentation via a lateral approach can be performed without positioning a bone graft inside, when one or more implants can be placed simultaneously. The aim of this study was to test if the placement of a porcine cortical bone layer underneath the sinus membrane can increase bone formation and implant stability. Materials and Methods: One hundred seventy-two patients with posterior maxilla atrophy needing implant rehabilitation were selected. Two hundred six sinus augmentation procedures were performed via a lateral approach, and 295 implants were placed in the same session of the sinus elevation surgery. In all the surgeries, a porcine cortical bone layer was placed underneath the sinus membrane, without using any graft material. After 6 to 7 months of healing, the implants were uncovered, then restored with porcelain-fused-to-metal crowns and monitored with a follow-up of 1 to 5 years. Results: The implant cumulative success rate was 95.2%, while the residual bone crest height changed from 2.67 ± 1.11 mm to 12.54 ± 1.42 mm, with an increase of 9.87 mm on average. Marginal bone resorption was 0.83 mm on average after 1 year of loading, while the mean implant stability measured at the moment of implant placement and 6 to 7 months later increased from an implant stability quotient (ISQ) of 62.61 ± 5.7 to an ISQ of 70.07 ±8.2. Conclusion:This study confirms the validity of the graftless sinus elevation surgery when simultaneous implant placement is performed. The use of a porcine cortical bone layer seems to increase, from a radiologic point of view, the amount of bone around the implants, reducing healing time, cost, and biologic complications for the patient. © 2020 by Quintessence Publishing Co Inc.
2020
Inglese
STAMPA
35
4
808
815
8
Cortical bone layer; Implant; Posterior maxilla; Sinus elevation; Sinus graft; Sinus membrane; Animals; Bone Transplantation; Dental Implantation, Endosseous; Follow-Up Studies; Humans; Maxilla; Maxillary Sinus; Swine; Dental Implants; Sinus Floor Augmentation
http://quintpub.com/journals/omi/abstract.php?iss2_id=1693&article_id=20503#.YQESvo4zbIV
4
info:eu-repo/semantics/article
262
Luongo, R.; Sgaramella, N.; Traini, T.; Bugea, C.
1 Contributo su Rivista::1.1 Articolo in rivista
reserved
File in questo prodotto:
File Dimensione Formato  
Luongo R.pdf

Solo gestori archivio

Descrizione: Article
Tipologia: PDF editoriale
Dimensione 688.66 kB
Formato Adobe PDF
688.66 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11564/755561
Citazioni
  • ???jsp.display-item.citation.pmc??? 0
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 5
social impact