Remaining Time

Christof Pertl

1987                            M.D. received; University of Graz 
 
1988                            Fullbright Scholar, School of Dental and Oral Surgery,
                                    Columbia University, New York
 
1990                            D.M.D. received; Universities of Graz and Vienna
 
1990-1993                   Postgraduate Training, Department of Oral Surgery
                                    and Oral Radiology, School of Dental Medicine, Graz, Austria
 
1992                            Clinical and research assistant, Department of Oral and
                                    Maxillofacial Surgery, UMDS, Guy’s and St. Thomas’s Hospital,
                                    London, U.K.
 
1993-1998                   Assistant Professor, Department of Oral Surgery
                                    and Oral Radiology, School of Dental Medicine, Graz, Austria
 
1993-1999                  Adjunct Assistant Professor, School of Dental Medicine, University of Pennsylvania, USA
 
1998-2005                   Associate Professor, Department of Oral Surgery
                                    and Oral Radiology, School of Dental Medicine, Graz, Austria
 
1998-1999                   Visiting Associate Professor, Harvard School of Dental Medicine,
                                    Boston, USA
 
1999-present             Lecturer, Harvard School of Dental Medicine, Boston, USA
 
1999-present             Adjunct Associate Professor, School of Dental Medicine, University of Pennsylvania, USA
 
2003-present             Board Member of Austrian Societies of Oral Implantology and Endodontology
 
2005-present             Private Practice  and Lecturer, Schools of Dental Medicine,
Medical Universities of Graz and Vienna, Austria
 
2008-2012                   President of the Austrian Society of Oral Implantology (ÖGI)

Piezo-Sonics in Oral Surgery and Endodontics
 
The Piezo “effect” describes a physical interaction, which is used in different fields of clinical medicine, such as ultrasound diagnostic technology and extracorporeal shock wave lithotripsy. In dentistry this technology has recently increased largely its field of indications. This ranges from endodontic procedures to several other bone cutting techniques in oral surgery and implant dentistry.
Ultrasound technology results in the power of a surgical cutting technique, which is able to selectively interact with hard and soft tissue. The key factors of the cutting action are an approximately 0.7 mm osteotomy slot, a laminar stream of cooling fluid and a selective cut–working frequency for hard tissue at 25-30 kHz and for soft tissue at 50 kHz.
This results in favorable features such as (1) a pressureless cut, (2) a precise cut (20-60 μm), (3) a cool cut (laminar flow), (4) a selective cut for different tissues (protecting the Schneiderian membran and the inferior alveolar nerve), and (5) a bloodless cut (cavitation effect).
The clinical use comprises indications such as tooth extraction, harvesting bone for different augmentative procedure, splitting alveolar bone, preparation of the Schneiderian membrane during sinus floor elevation procedures, exposing the inferior alveolar nerve and root-end-preparation during endodontic surgeries. This lecture intends to summarize the clinical applications of piezo-surgery and compare this technique with conventional cutting techniques. Additionally, the use the piezo-sonics in conventional endodontics will be discussed.
An overview and a critical analysis of the present indications for this technique will be presented in this clinically oriented presentation that will include the most relevant literature in the field.