Volumetric change after maxillary sinus floor elevation using absorbable collagen sponge: a retrospective cohort study
10.5125/jkaoms.2025.51.2.87
- Author:
Yoon-Sic HAN
1
;
Byoung Moo SEO
Author Information
1. Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul Metropolitan Government - Seoul National University Boramae Medical Center, Seoul, Korea
- Publication Type:ORIGINAL ARTICLE
- From:Journal of the Korean Association of Oral and Maxillofacial Surgeons
2025;51(2):87-94
- CountryRepublic of Korea
- Language:English
-
Abstract:
Objectives:To evaluate changes in bone volume induced by absorbable collagen sponge (ACS) use during maxillary sinus floor elevation and to identify associated factors.
Patients and Methods:After elevating the sinus membrane through a crestal approach (CA) or lateral approach (LA), ACS (AteloPlug; Bioland) was inserted, and dental implants were placed simultaneously. Changes in bone volume at 12 months were evaluated by three-dimensional (3D) analyses of cone-beam computed tomography images. Factors including age, sex, smoking status, span, number of ACSs, and perforation were assessed for associations with changes in sinus bone volume using uni- and multivariable analyses based on the generalized estimating equation.
Results:Medical records of 108 patients were collected and retrospectively evaluated, with 135 regions of interest defined (CA, 45; LA, 90). The changes in bone volume at the sinus floor were 159.38±134.52 mm 3 and 486.83±253.14 mm 3 in the CA and LA groups, respectively. Bone volume changes in the CA group were significantly affected by the number of ACSs (P<0.001) and perforation of the sinus membrane (P<0.001), whereas bone volume changes in the LA group were significantly affected by the number of ACSs (P=0.001).
Conclusion:Use of ACS for maxillary sinus elevation resulted in detection of new bone formation in 3D analysis. Clinicians can ensure stable amounts of bone formation by inserting an adequate number of ACSs.
