Compressive osteotomes for expansion and maxilla sinus floor lifting.
OBJECTIVE
The aim of this article is to assess the efficiency of the technique for the posterior alveolar expansion and elevation of the upper maxillary alveolar ridge through the use of compressive osteotomes (Quirurgical Bontempi, España) which have been specifically designed for Osseotite NT and Osseotite NT Certain of 3i implants (Implants Innovations, USA).


METHODS
24 adult patients (16 female and 12 male), who were selected according to Albrektsson's inclusion and exclusion criteria, took part in the study. All the patients presented bone deficiency in the width and height of the upper maxilla. 48 Osseotite implants were performed (four Osseotite Standard; six Osseotite NT; 38 NT Certain (3i, Implants Innovations, CA, USA)). Implant diameters were 4 mm in 44 cases and 5 mm in 4 cases with lengths varying between 11.5 (n = 4) and 13 mm (n = 44). The alveolar ridges of the 24 patients had initial widths from 1.5 mm to 5 mm and heights between 5 and 13 mm.


RESULTS
The data obtained were analysed using the SPSS 11.0 program. In the 48 areas treated with immediate implants, an increase in bone height of 6.75 mm -/+ 1.25 mm was achieved. In the case of the alveolar expansion for the 48 implants, the average was 3.2 mm -/+ 0.15 mm.


CONCLUSIONS
The technique for alveolar expansion and elevation of the upper maxilla with compressive osseotomes can lead to a 100% success rate after a 9-month follow-up of the implants and insertion of prostheses. It is a highly predictable surgical procedure which allows implants to be performed at the same time as surgery, thus reducing the number of such interventions while recovering aesthetic and functional losses in the patient.
Calvo-Guirado
José Luis
JL
School of Dentistry, University of Murcia. josecalvog@ono.com
Saez-Yuguero
Rosario
R
Pardo-Zamora
Guillermo
G
D000293:Adolescent; D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000601:surgery*; D016025:Bone Transplantation; D003758:Dental Implantation, Endosseous / Q000379:methods*; D015921:Dental Implants; D003762:Dental Instruments; D017267:Dental Prosthesis Design; D005260:Female; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation; D008297:Male; D008439:Maxillary Diseases / Q000601:surgery; D008443:Maxillary Sinus / Q000601:surgery*; D008875:Middle Aged; D013516:Oral Surgical Procedures, Preprosthetic / Q000295:instrumentation / Q000379:methods*; D010027:Osteotomy / Q000295:instrumentation
D015921:Dental Implants