CLINICAL STUDY ON THE EFFECTIVENESS OF PIEZOSURGICAL TECHNIQUES VERSUS TRADITIONAL TECHNIQUES IN RECONSTRUCTION OF PERIIMPLANT BONE DEFECTS
Abstract:
There are already more than 2 decades since ultrasound instruments are being used for
osteotomy and osteoplasty in our health system. The cutting of hard tissue with ultrasonic vibrations that
are formed by the piezoelectric effect was first described by Catuna in 1953 and then by Volkov and
Shepelevam in 1974.(1,2) Purpose and methods: A particular emphasis has been placed on evaluating
interventions using minimally invasive piezosurgical device, which allowed solving critical situations of
bone resorption up to 2.5 mm width, and which through classical techniques would have created serious
problems of osteotomy and immediate insertion of implants. I have insisted on how to resolve the
delicate situation in which, both very small width of the bone ridge and proximity of the sinus cavity
could lead to intraoperative accidents unless intervened with piezosurgical technique. The results
obtained from the various surgical techniques applied were evaluated by analyzing specific accidents
and complications, reinterventions and the average duration of healing. Discussions: The success rate of
implants and prosthetic restoration waiting time (in months) were set as dependent variables for the
statistical analysis. Success rate was calculated for each osteotomy surgical technique using the
formula: number of implants inserted / number of implants lost. The main variable which determines the
other parameters is represented in the analysis by means of the implant. The variables were: origin of
the graft (lateral wall of the maxillary sinus, the combination of autogenous bone and xenogenous
bovine bone), smoking habits (smoker / non-smoker), associated comorbidity (periodontal disease,
systemic disease) and implant insertion (immediate or delayed). Conclusions: Piezoelectric technique
achieves a higher success rate than was possible with any other method of surgical implantology. These
significant advances enable a surgical technique that reduces accidents during operative time and also
patient’s morbidity.
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