Retrospective study on the merits of bone grafts and the influence of implant protrusion length after osteotome sinus elevation surgery.
- Author:
Da-Wei YANG
1
;
Jing-Yi XIAO
1
;
Peng ZHANG
1
;
Bo-Yao LU
1
;
Xing LIANG
1
Author Information
- Publication Type:Journal Article
- Keywords: bone grafts; dental implant; implant protrusion length; osteotome sinus floor elevation
- MeSH: Dental Implantation, Endosseous; Dental Implants; Humans; Maxilla/surgery*; Retrospective Studies; Sinus Floor Augmentation; Treatment Outcome
- From: West China Journal of Stomatology 2021;39(5):570-575
- CountryChina
- Language:English
-
Abstract:
OBJECTIVES:This study aims to evaluate the endo-sinus bone remodeling of dental implants placed via osteotome sinus floor elevation (OSFE) after 6 months and using different implant protrusion lengths and bone grafts through cone beam computed tomography (CBCT).
METHODS:Ninety-six patients with 124 implants were included and assigned into four groups. Group 1: implant protrusion length<4 mm with bone graft; group 2: implant protrusion length>4 mm with bone graft; group 3: implant protrusion length<4 mm without bone graft; group 4: implant protrusion length>4 mm without bone graft. Apical bone gain (ABG), cortical bone gain (CBG), bone density gain (BDG), and marginal bone loss (MBL) were observed and analyzed at baseline and 6 months after implant surgery.
RESULTS:The CBG in grafted groups 1 and 2 was higher than that in non-grafted groups. The ABG and BDG were higher in non-grafted groups 3 and 4 than in grafted groups, and the levels in group 3 were higher than those in group 4. The CBG in grafted group 2 was higher than that in group 1. No significant difference was observed in MBL analysis.
CONCLUSIONS:The BDG of IPL<4 mm implants was higher than IPL>4 mm implant when bone grafts were not applied. No relevance was observed between IPL and CBG. Bone grafts can accelerate endo-sinus bone remodeling by increasing CBG and dissipating the influence of IPL on BDG.
