Maxillofac Plast Reconstr Surg.  2019 ;41(1):54. 10.1186/s40902-019-0233-1.

Floating septum technique: easy and safe method maxillary sinus septa in sinus lifting procedure

• Jung J
• Hwang BY
• Kim BS
• Lee JW

• KMID: 2469001
• DOI: http://doi.org/10.1186/s40902-019-0233-1

Abstract

BACKGROUND
The presence of septa increases the risk of Schneiderian membrane perforation during sinus lift procedure, and therefore, the chance of graft failure increases. We present a safe method of managing septa and, in particular, overcoming small and palatally located septa.
METHODS
After the elevation of the flap and the creation of a small bony window positioned anterior to the septum, the Schneiderian membrane is lifted carefully. A thin and narrow osteotome is then placed at the indentation created at the base of the septum, and mobilization of the septum is achieved by gentle malleting. The membrane is again carefully lifted up behind the septum.
RESULTS
There was one small membrane perforation case in all 16 cases, and none of these patients showed postoperative complications such as implant failure, infection, or maxillary sinusitis.
CONCLUSIONS
This technique is useful for overcoming the problem of maxillary sinus septa hindering the sinus floor elevation procedure, leading to fewer complications.

Keyword

Maxillary sinus; Sinus elevation; Septum

MeSH Terms

Humans
Lifting*
Maxillary Sinus*
Maxillary Sinusitis
Membranes
Methods*
Nasal Mucosa
Postoperative Complications
Transplants