LOGIN
 
Share Page:
Back

Volume 27 , Issue 1
January/February 2012

Pages 211217


Bony Window Repositioning Without Using a Barrier Membrane in the Lateral Approach for Maxillary Sinus Bone Grafts: Clinical and Radiologic Results at 6 Months

Yong-Seok Cho, DDS, PhD/Hyun-Kyung Park, MD, PhD/Chang-Joo Park, DDS, PhD


PMID: 22299099

Purpose: There has been considerable controversy about the placement of barrier membranes over osteotomy and graft sites in sinus bone grafts via the lateral window approach. Particularly when the sinus membrane remains intact, clinicians should consider the benefits and costs of a barrier membrane. This article presents clinical and radiologic findings following repositioning of a detached bony window without a barrier membrane in the lateral approach for maxillary sinus bone grafts. Materials and Methods: After a complete 360-degree osteotomy on the lateral maxillary wall, a bony window was outfractured and separated from the sinus membrane by gentle elevation. After the sinus membrane was confirmed to be intact, grafting was carried out and the bony window was repositioned over the graft material without rigid fixation or a barrier membrane. Clinical and radiologic examinations were performed 6 months postoperative. The relationships between the patterns of gap bone healing, number of implants, time of implant placement (simultaneous with grafting or staged), and thickness of the lateral sinus wall were analyzed. The Fisher exact test and Spearman nonparametric correlation coefficient were employed for statistical evaluation. Results: All 23 included patients experienced no complications. Overall external cortical healing and bone regeneration in the gap between the repositioned window and the lateral wall of the sinus were satisfactory. No significant differences in the patterns of gap bone healing were found, with respect to the number of implants placed or time of implant placement. As the lateral sinus wall was thinner, gap bone healing was better. To date, no implants have failed. Conclusion: A detached bony window that is repositioned on graft material might function as a barrier membrane in the lateral approach for maxillary sinus bone grafts. Int J Oral Maxillofac Implants 2012;27:211217

Key words: bone grafting, dental implants, maxillary sinus, membranes


Full Text PDF File | Order Article

 

 
Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files. This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site to get your copy of Adobe Acrobat Reader.

 

© 2017 Quintessence Publishing Co, Inc JOMI Home
Current Issue
Ahead of Print
Archive
Author Guidelines
About
Accepted Manuscripts
Submission Form
Submit
Reprints
Permission
Advertising
Quintessence Home
Terms of Use
Privacy Policy
About Us
Contact Us
Help