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Sinus Lift versus Short Implants: Results of a Prospective Radiologic Study and Critical Review of Minimally Invasive Transcrestal Sinus Lift Procedures

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Open Journal of Stomatology 2017年第1期7卷 1-24页

作者： Izabela Schlichting dagmar lacina Bianca Fischak-Treitl Practice for Dentistry and Oral Implantology Vienna Austria Office for General Dentistry and Implantology Mattersburg Austria

Introduction: The current discussion about the use of short implants to avoid bone-augmentation (“sinus lift”) in the lateral maxilla remains a controversial topic and is increasingly at odds with the reality of evolutionary biology. Aim of the study was to determine the percentage of cases from a large routine patient-sample in which short implants might be suitable to avoid sinus lift procedures. Materials and Methods: From January 2012 to June 2015, all patients in three general dental practices in Austria with at least one subantral edentulous area were subjected to routine panoramic X-ray screening. The subantral alveolar ridge heights and the mesial extension of the maxillary sinus towards the canine fossa were measured. Statistics were performed by Excel data analysis (mean value, standard deviation). Results: 2837 patients were screened with 2837 panoramic radiographs presenting 3528 edentulous subantral regions and the subantral bone heights of 5674 maxillary sinuses were surveyed. 57.43% revealed subantral alveolar ridge heights of 4 mm or less;24.43% of all measure-points indicated a maximum alveolar ridge height of 6 mm. In 39.32% of cases, the pneumatisation of the maxillary sinuses with a subantral residual ridge height of 6 mm or less extended as far as the anatomical position of the second premolars, in 20.51% as far as the position of the first premolar and in 10.84% as far as the canine fossa. Discussion: The sinus lift procedure will continue to be one of the basic standard surgical procedures carried out by practice-based dental surgeons who perform implant surgery since in at least two thirds of the cases short implants with lengths of less than 6 mm cannot be applied. Preference should be given to sinus lift-procedures, which can be learned safely with a minimum of time-effort, least risk of failure and lowest possible level of patient morbidity. Transcrestal hydrodynamic ultrasonic sinus lift-procedures with piezotomes seem to fulfill these ba

关键词： Oral Surgery Implantology Sinus Lift Piezotome Surgery Ultrasonic Surgery Short Implants

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