3 research outputs found
a follow-up on bone graft stability and implant success
Background Until now, sinus floor elevation represents the gold standard
procedure in the atrophic maxilla in order to facilitate dental implant
insertion. Although the procedure remains highly predictive, the perforation
of the Schneiderian membrane might compromise the stability of the augmented
bone and implant success due to chronic sinus infection. The aim of this
retrospective cohort study was to show that a membrane tear, if detected and
surgically properly addressed, has no influence on the survival of dental
implants and bone resorption in the augmented area. Methods Thirty-one
patients with 39 perforations could be included in this evaluation, and a
control group of 32 patients with 40 sinus lift procedures without
complications were compared regarding the radiographically determined
development of bone level, peri-implant infection, and implant loss. Results
Implant survival was 98.9% in the perforation group over an observation period
of 2.7 (± 2.03) years compared to 100% in the control group after 1.8 (± 1.57)
years. The residual bone level was significantly lower in the perforation
group (p = 0.05) but showed no difference direct postoperatively (p = 0.7851)
or in the follow-up assessment (p = 0.2338). Bone resorption remained not
different between both groups (p = 0.945). A two-stage procedure was more
frequent in the perforation group (p = 0.0003) as well as peri-implantitis (p
= 0.0004). Conclusions Within the limits of our study, the perforation of the
Schneiderian membrane did not have a negative impact on long-term graft
stability or the overall implant survival
Impact of surgical management in cases of intraoperative membrane perforation during a sinus lift procedure: a follow-up on bone graft stability and implant success
Abstract Background Until now, sinus floor elevation represents the gold standard procedure in the atrophic maxilla in order to facilitate dental implant insertion. Although the procedure remains highly predictive, the perforation of the Schneiderian membrane might compromise the stability of the augmented bone and implant success due to chronic sinus infection. The aim of this retrospective cohort study was to show that a membrane tear, if detected and surgically properly addressed, has no influence on the survival of dental implants and bone resorption in the augmented area. Methods Thirty-one patients with 39 perforations could be included in this evaluation, and a control group of 32 patients with 40 sinus lift procedures without complications were compared regarding the radiographically determined development of bone level, peri-implant infection, and implant loss. Results Implant survival was 98.9% in the perforation group over an observation period of 2.7 (± 2.03) years compared to 100% in the control group after 1.8 (± 1.57) years. The residual bone level was significantly lower in the perforation group (p = 0.05) but showed no difference direct postoperatively (p = 0.7851) or in the follow-up assessment (p = 0.2338). Bone resorption remained not different between both groups (p = 0.945). A two-stage procedure was more frequent in the perforation group (p = 0.0003) as well as peri-implantitis (p = 0.0004). Conclusions Within the limits of our study, the perforation of the Schneiderian membrane did not have a negative impact on long-term graft stability or the overall implant survival