By: MARCO TALLARICO, ERTA XHANARI, YONG-JIN KIM, ADEM ALUSHI
Purpose:
The aim of the present prospective study was to evaluate the implant survival rate, complications, and three-dimensional radiologic outcomes of maxillary sinus floor augmentation via a minimally invasive crestal approach and simultaneous implant placement.
Materials & Methods:
Study design: Prospective observational trial
Subjects and Outcomes of the study
- Patients: 10 patients with a mean age of 52.2±7.1 years
- Period: between September 2014 and December 2016 (The mean follow-up time was 19.3±3.6 months after implant loading)
- Implants: 17 self-tapping tapered TSIII implants (Osstem Implant) and simultaneous sinus floor elevation using a crestal approach (CAS Kit; Osstem) and hydraulic pressure
Results:
- No implants and no prostheses failed during the follow-up period. No membrane tear and no other intraoperative or postoperative adverse events were observed.
- The mean marginal bone loss at the follow-up one year after loading was 0.22±0.19 mm (95 % CI, 0.06-0.38; p = 0.000).
- Bone volume at implant placement was 0.81±0.12 ml (95 % CI, 0.75?0.87).
- At the one-year follow-up examination, a slight bone contraction of 8.1 % was observed (0.74±0.15 ml; 95 % CI, 0.73-0.87; difference, 0.7±0.04 ml; 95 % CI, 0.04-0.08; p = 0.000).
- The mean pain value was 0.49 °æ 0.65 (range 0-3); mean swelling value was 0.31±0.44 (range 0-2).
- At implant placement, the mean ISQ value was 67.1±4.6 (95 % CI, 64.8-69.2) and increased during the follow-up period, reaching a mean value of 72.3±2.7 (95 % CI, 71.7-74.3). The difference was statistically significant (5.2±3.0; 95 % CI, 3.6-6.4; p = 0.000).
Conclusion:
A crestal approach to sinus floor elevation using dedicated drills with simultaneous implant placement is a viable treatment option for the minimally invasive treatment of the posterior atrophic maxilla.
