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Sinus lift information


Xray showing a sinus lift in the left upper jaw
Sinus lift surgery, 3D Illustration

Maxillary sinus floor augmentation[1] (also termed sinus lift, sinus graft, sinus augmentation or sinus procedure) is a surgical procedure which aims to increase the amount of bone in the posterior maxilla (upper jaw bone), in the area of the premolar and molar teeth, by lifting the lower Schneiderian membrane (sinus membrane) and placing a bone graft.[2]

When a tooth is lost, the alveolar process begins to remodel. The vacant tooth socket collapses as it heals leaving an edentulous (toothless) area, termed a ridge. This collapse causes a loss in both height and width of the surrounding bone. In addition, when a maxillary molar or premolar is lost, the maxillary sinus pneumatizes in this region which further diminishes the thickness of the underlying bone.[3] Overall, this leads to a loss in volume of bone that is available for implantation of dental implants, which rely on osseointegration (bone integration), to replace missing teeth. The goal of the sinus lift is to graft extra bone into the maxillary sinus, so more bone is available to support a dental implant.[4]

  1. ^ Boyne, PJ. De novo bone induction by recombinant human bone morphogenetic protein-2 (rhBMP-2) in maxillary sinus floor augmentation. J Oral Maxillofac Surg 2005;63:1693-1707
  2. ^ "Sinus Lift Surgery - Sinus Augmentation | Colgate". www.colgate.com. Archived from the original on 2015-07-01.
  3. ^ Wagner, F; Dvorak, G; Nemec, S; Pietschmann, P; Figl, M; Seemann, R (January 2017). "A principal components analysis: how pneumatization and edentulism contribute to maxillary atrophy". Oral Diseases. 23 (1): 55–61. doi:10.1111/odi.12571. PMID 27537271.
  4. ^ Esposito, Marco; Felice, Pietro; Worthington, Helen V. (2014-05-13). "Interventions for replacing missing teeth: augmentation procedures of the maxillary sinus". The Cochrane Database of Systematic Reviews (5): CD008397. doi:10.1002/14651858.CD008397.pub2. ISSN 1469-493X. PMC 10821778. PMID 24825543.

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