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Sinus floor elevation

Following the loss of a premolar or molar, posterior maxilla bone height is often insufficient for implant placement. A sinus floor elevation procedure creates additional bone height, either via a transcrestal or lateral window approach.

Sinus augmentation procedures can be conducted before implant placement (two-stage surgery) or simultaneously (single surgery). The posterior maxilla residual bone and sinus anatomy must be analyzed prior to planning the procedure and determining the timing of implant placement. The following table shows a simplified summary of the current guidelines1-5.

Residual bone height >6-12 mm

  • transcrestal or lateral window technique 
  • simultaneous or staged implant placement

Residual bone height <6 mm

  • lateral window technique 
  • second-stage surgery

 

Sinus floor elevation procedures utilizing bone graft materials to augment the bone in the posterior maxilla can be performed before or simultaneously with implant placement. 



The high reliability of Geistlich biomaterials for these indications has been shown in more than 200 sinus augmentation studies6. Evidence indicates that xenogeneous materials result in superior long-term results in sinus floor elevation compared to autogenous bone chips7.

Application of a membrane such as Geistlich Bio-Gide® increases implant survival rate significantly8. Geistlich Bio-Gide® can also be placed in the sinus to protect a perforated Schneiderian membrane during the surgical procedure and subsequent post-operative healing.

More than 200 sinus augmentation studies document predictable outcomes achieved with Geistlich products6.


References:

  1. Summers RB Compendium. 1994; 15(2):152, 154-6, 158 passim; quiz 162.
  2. Zitzmann NU: Int J Oral Maxillofac Implants 1997; 12(6): 844-52.
  3. Misch CE: Int J Oral Implantol 1990; 7(1): 9-17.
  4. Chiapasco M: Clin Oral Implants Res 2008; 19(4): 416-28.
  5. Chen S, et al.: ITI Treatment Guide 2011; Vol 5,  Quintessenz Publishing.
  6. Pubmed September 2013. Search term “Bio-Oss” and “Sinus”.
  7. Aghaloo TL, Moy PK: Int J Oral Maxillofac Implants 2007; 22: 49-70.
  8. Pjetursson BE, et al.: J Clin Periodontol 2008; 35 (Suppl. 8): 216-40.

     

    CAUTION: Federal law restricts these devices to sale by or on the order of a dentist or physician.