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Relationship between dental implant stability determined by resonance frequency analysis measurements and peri‐implant vertical defects: an in vitro study
Author(s) -
TÖZÜM T. F.,
TURKYILMAZ I.,
McGLUMPHY E. A.
Publication year - 2008
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.2007.01840.x
Subject(s) - implant stability quotient , resonance frequency analysis , implant , materials science , dentistry , analyser , biomedical engineering , nuclear medicine , dental implant , medicine , surgery , physics , optics
Summary Resonance frequency (RF) analysis is a non‐invasive and objective technique developed for implantology, where it measures the stability of the implant in the bone socket. A limited number of studies were performed to compare different stability measurement devices. The aim of the study was to evaluate the association between the implant stability and peri‐implant vertical defect by using the new wireless RF analyser. Micro‐textured rough‐surfaced implants with diameters of 3·7 and 4·8 mm and with a length of 12 mm were used. The peak insertion torque was recorded with the help of the torque control system only during the implant placement. The peri‐implant defects were created in millimetre increments ranging between 0 and 5 mm to the same extent on all implants. The RF analysis values were measured by using the RF analyser. Significant correlation was found between insertion torque (44·3 ± 3 N cm) and implant stability quotient (ISQ) (all implants: r = 0·76, 3·7 mm diameter: r = 0·65, 4·8 mm diameter: r = 0·80). For 3·7 × 12‐mm 2 implants, the mean ISQ values were 72·6 ± 2·4, 69·8 ± 2, 67·2 ± 1·8, 64·3 ± 1·9, 61·2 ± 2 and 57·2 ± 2·5 when peri‐implant vertical defects were 0, 1, 2, 3, 4 and 5 mm; and the corresponding values were 76·5 ± 2·2, 74·5 ± 2·2, 72·3 ± 2, 70 ± 1·9, 67 ± 1·9 and 63·4 ± 2·3, respectively, for 4·8 × 12‐mm 2 implants. All values were significantly different when compared with each other. The wireless RF analyser seems to be a suitable and reliable device to determine the implant stability. Peri‐implant bone loss simulated by using acrylic models may result with a decrease in ISQ values for osseo‐integrated implants measured by the RF analyser.