Evaluation of immediate cell viability and repair of osteotomies for implants using drills and piezosurgery. A randomized, prospective, and controlled rabbit study.

Abstract:

PURPOSE:The objective of this study was to evaluate the immediate bone damage and bone repair after osteotomy for implants using conventional drills and drills powered by piezoelectric motor. MATERIALS AND METHODS:Twelve rabbits received a tibial osteotomy with a conventional drill (control), with a diamond like carbon drill (DLC) and with a piezoelectric drill (Piezo). The animals were euthanized immediately, 30 and 60 days postoperatively. The tibias were removed and analyzed by means of histomorphometry, immunohistochemistry and microtomography. RESULTS:The immediate damage to the tissue at the cavity margins was similar (P > .05). At 30 and 60 days, the amount of newly formed bone tissue was similar (P > .05). Osteocalcin was intense score at 60 days in Piezo group. Microtomography revealed that bone volume at 30 days (control 3.8; DLC 4.3; and Piezo 2.4) and 60 days (control 4.9; DLC 4.82; and Piezo 3.95) were similar. There was a significant difference in bone formation between 30 (2.4) and 60 days (3.95) for the Piezo group (P = .016). CONCLUSION:The immediate effects and repair of cavities made using conventional, DLC coated, or ultrasound drills were similar.

authors

Ponzoni D,Martins FEPB,Conforte JJ,Egas LS,Tonini KR,de Carvalho PSP

doi

10.1111/cid.12907

subject

Has Abstract

pub_date

2020-06-01 00:00:00

pages

250-260

issue

3

eissn

1523-0899

issn

1708-8208

journal_volume

22

pub_type

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