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Volume 36 , Issue 4
July/August 2016
Pages 489–496

Increase in Periodontal Interleukin-1β Gene Expression Following Osseous Resective Surgery Using Conventional Rotary Instruments Compared with Piezosurgery: A Split-Mouth Randomized Clinical Trial

Mario Aimetti, MD, DDS/Francesco Ferrarotti, DDS/Loredana Bergandi, PhD/Laura Saksing, DDS/Francesca Parducci, DDS/Federica Romano, DDS

PMID: 27333006
DOI: 10.11607/prd.2835

The purpose of this study was to evaluate the early inflammatory response following osseous resective surgery (ORS) with Piezosurgery compared to commonly used diamond burs. A sample was selected of 24 bilateral posterior sextants requiring ORS in 12 chronic periodontitis patients in a split-mouth design. In 12 sextants, bone recontouring was performed using a piezoelectric device. In the contralateral sextants, rotary instruments were used. Sextants treated with Piezosurgery obtained similar 12-month clinical results but lower postsurgical gene expression of interleukin-1β (IL-1β), a well-known proinflammatory cytokine, and lower patient morbidity compared with sextants treated with rotary instruments. In spite of the longer surgical time, the use of Piezosurgery for ORS seems to promote more favorable wound healing compared with rotary instruments, as the lower pain and the low levels of IL-1β mRNA at the surgical sites suggest a milder underlying inflammatory response.

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