Osteotome sinus floor elevation without grafting material: Results of a 2-year prospective study.

Autor:	Brizuela A; DDS,PhD,MsC. Professor, Postgraduate Department of Oral Implantology, School of Medicine and Dentistry, University of the Basque Country, Leioa, Spain., Martín N; DDS. Professor, Department of Integrated Adult Dentistry, Department of Stomatology, School of Medicine and Dentistry, University of the Basque Country, Leioa, Spain., Fernández-Gonzalez FJ; BSD, MSD, Specialist in Orthodontics and Dentofacial Orthopedics at the University of Oviedo. Private practice, León, Spain., Larrazábal C; DDS. Professor, Postgraduate Department of Oral Surgery. Universidad Católica de Valencia. Valencia, Spain., Anta A; DDS,PhD,MsC. Professor, Postgraduate Department of Oral Implantology, School of Medicine and Dentistry, University of the Basque Country, Leioa, Spain.
Jazyk:	angličtina
Zdroj:	Journal of clinical and experimental dentistry [J Clin Exp Dent] 2014 Dec 01; Vol. 6 (5), pp. e479-84. Date of Electronic Publication: 2014 Dec 01 (Print Publication: 2014).
DOI:	10.4317/jced.51576
Abstrakt:	Objectives: The aim of this prospective clinical trial was to evaluate the success implant rates during 24 months using OSFE procedure without grafting materials. Study Design: 42 adult patients (22 female, 15 male) were selected according to Nedir et al´s inclusion criteria of which 5 patients were excluded, due to periapical pathology in adjacent teeth (n=3) and treatment with bisphosphonates (n=2). 37 patients aged 31-68 years were selected. Smokers were divided in two groups depending on the number of cigarettes consumed per day (a) 0-10, (b) 11-20. One patient was excluded because he was lost to follow-up at 24 months A total of 36 threaded implants were placed, ∅4,1mm Straumann® (Straumann AG, Waldenburg, Switzerland) and ∅3,5mm Klockner® (Klockner Implant System, Barcelona, Spain). The most used implant diameter was 4,1 mm (n=29), followed by 3,5 mm (n=7), and length used was 10 mm (n=32) and 8 mm (n=4). Initial RBH ranged from 4 mm to 9 mm. All statistical data were processed using the program R 3.0.2 for windows. Results: A total of 36 threaded implants were placed. Residual bone height (RBH) at implant placement averaged 7,4 ± 0,4 mm. Mean bone gain was 1,8 ± 0,3 mm. Four implants showed a bone gain exceeding 3 mm. Mean implant protrusion length into the sinus amounted to 2.1 ± 0,3 mm. Regarding the relationship between smoking and periodontal probes, no statistically significant differences were found (P=0,25), neither in relation to the number of threads that the implants showed (P=0,29) or bone gain (P=0,79). After 24 months the implant success rate was 91,6%. Conclusions: Implant rehabilitation of edentulous atrophied posterior maxilla can be safely performed and simplified using the OSFE technique without grafting with reliable long-term results. Key words:Crestal bone loss, dental implants, internal sinus lift, no grafting, osteotome sinus elevation, grafting, sinus floor elevation.
Databáze:	MEDLINE
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