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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 27 (2012), No. 5     15. Sep. 2012
Int J Oral Maxillofac Implants 27 (2012), No. 5  (15.09.2012)

Page 1211-1215, PubMed:23057036


Effectiveness of Piezoelectric Surgery in Preparing the Lateral Window for Maxillary Sinus Augmentation in Patients with Sinus Anatomical Variations: A Case Series
Cortes, Arthur Rodriguez Gonzalez / Cortes, Djalma Nogueira / Arita, Emiko Saito
Purpose: The present article sought to evaluate the effectiveness of a piezoelectric surgical unit for maxillary sinus augmentation surgeries in avoiding perforation of the sinus membrane and other possible procedural complications in patients with anatomical variations of the sinus.
Materials and Methods: Twentyfive patients presenting sinus anatomical variations, who were indicated for a total of 40 sinus grafting procedures performed by the lateral window approach with a piezoelectric device, were analyzed. After 6 months of healing, implants were placed. Information collected included clinical and computed tomographic information on anatomical variations in the sinus bone walls, in the size of the sinus, and in the thickness of the sinus membrane. Occurrence of sinus membrane perforation and computed tomographic measurements of the amount of bone height gained with the grafting procedures were also recorded.
Results: Only two patients presented a small perforation (less than 5 mm in diameter) of the sinus membrane, which occurred only after osteotomies of the lateral windows and did not compromise the surgical outcome. No implants were lost during a mean follow-up period of 19 months.
Conclusion: The use of piezoelectric surgery allowed for the accomplishment of all rehabilitation treatments within the follow-up period of this study.

Keywords: lateral window approach, maxillary sinus, piezoelectric surgery, sinus anatomical variations, sinus elevation