Atraumatic maxillary sinus elevation using threaded bone dilators for immediate implants. A three-year clinical study

Abstract

Objective: The aim of this study was to evaluate the efficacy of sinus floor elevation using sequential bone dilators. Materials and Methods: Thirty patients took part in the study (18 women and 12 men) with ages ranging between thirty-six and sixty-three years, selected according to inclusion and exclusion criteria, who showed a bone deficit in the upper posterior alveolar margin of 5-8 mm in height. Sixty expanded platform internal connection implants were placed with diameters of 4/5/4 mm and lengths varying between 10 (n=10) and 11.5 mm (n= 50). Results: Data obtained were analyzed using SPSS 15.0 software. The average intra-sinus bone gain with MP3 biomaterial of porcine origin was 4.13 +/-0.97 SD mm at the moment of implant placement, 3.90 +/-1.15 SD mm after twelve months, 3.74 +/-1.05 SD mm after 24 months and 3.62 +/-1.75 SD mm after 36 months. Two implants were lost at the moment of prosthesis placement. Conclusions: Alveolar lifting technique in the upper maxilla using bone dilators achieved a 96.6 % implant success rate after a three-year follow-up. Intra-sinus bone biomaterial remodeling was 0.51 +/-0.08 mm from day zero to the thirty-six-month follow-up. This is a procedure that reduces the amount of surgery necessary and is of both aesthetic and functional benefit to the patient.

Implant Survival Rates after Osteotome‐Mediated Maxillary Sinus Augmentation: A Systematic Review

“…Nine studies described the use of graft materials in combination with sinus membrane elevation, 11,12,15,17,19,20,24,26,27 while in 11 studies, no graft was used. Nine studies described the use of graft materials in combination with sinus membrane elevation, 11,12,15,17,19,20,24,26,27 while in 11 studies, no graft was used.…”

“…Considering separately studies using 11,12,15,17,19,20,24,26,27 and not using 13,14,16,18,[21][22][23][24][25]28,29 bone graft materials, the SR at 1 year was respectively 97.37% for 1,367 implants and 97.90% for 1,764 implants. No statistically significant difference was found between the outcomes of the two groups using Pearson's test (p = .32; OR = 0.79; 95% CI 0.50, 1.26).…”

“…No statistically significant difference was found between the outcomes of the two groups using Pearson's test (p = .32; OR = 0.79; 95% CI 0.50, 1.26). A total of 1,791 implants in 15 studies 11,[13][14][15]17,[19][20][21][22][23][24][25][26][27]29 were considered: 387 implants shorter than 8.5 mm, 769 from 8.5 mm to 10 mm long, and 635 longer than 10 mm. The mean values of these variables are also reported for each study, when available.…”

Simulation for training in sinus floor elevation: new surgical bench model

“…In view of its important predictability (7,8) surgical skills are frequently learned in the operating room on live patients despite that existing bench-model training in laboratory settings may offer a valuable adjunct for learning basic surgical skills.…”

Survival of implants placed with the osteotome technique: An update

“…In most clinical studies, implant placement using the osteotome technique is carried out in combination with indirect sinus lift (5,6). …”