Analysis of implant stability changes in immediate loading using a laser displacement sensor in vivo and comparison of its sensitivity with that of resonance frequency analysis

2021 ◽  
Author(s):  
Kazuhiro Murakami ◽  
Kazuhiko Yamamoto ◽  
Junichi Ishida ◽  
Sadami Tsutsumi ◽  
Tadaaki Kirita
Keyword(s):  
Resonance Frequency ◽  
Frequency Analysis ◽  
Displacement Sensor ◽  
Immediate Loading ◽  
Laser Displacement Sensor ◽  
Resonance Frequency Analysis ◽  
Implant Stability

An Evaluation of the Resonance Frequency Analysis Device: Examiner Reliability and Repeatability of Readings

2013 ◽  
Vol 39 (6) ◽  
pp. 704-707 ◽  
Author(s):  
Rajiv Kumar Gupta ◽  
Thallam Veer Padmanabhan
Keyword(s):  
Clinical Study ◽  
Resonance Frequency ◽  
Frequency Analysis ◽  
In Vivo Studies ◽  
Limited Information ◽  
Resonance Frequency Analysis ◽  
Implant Stability ◽  
Noninvasive Methods ◽  
Interexaminer Reliability

Initial stability at the placement and development of osseointegration are 2 major issues for implant survival. Many of the presently used noninvasive methods of evaluating the stability of implants are highly subjective. The resonance frequency analysis (RFA) device is claimed to offer a more objective means to assess implant stability. Limited information is available on the interexaminer reliability and repeatability of the RFA device, used to measure implant stability. Two blind in vivo studies were conducted using 50 implant cases. In the first clinical study, 3 investigators took implant stability quotient (ISQ) readings for each implant to check the interoperator reliability for the RFA device. In the second clinical study, implant stability was measured by the same operator using the RFA device for each implant 3 times on the same day with a 15-minute interval, to check the repeatability of the RFA device. Within the limitations of this study, the RFA device demonstrated a high degree of interoperator reliability and repeatability.

scholarly journals Does the manual insertion torque of smartpegs affect the outcome of implant stability quotients (ISQ) during resonance frequency analysis (RFA)?

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Ingrid Kästel ◽  
Giles de Quincey ◽  
Jörg Neugebauer ◽  
Robert Sader ◽  
Peter Gehrke
Keyword(s):  
Resonance Frequency ◽  
Frequency Analysis ◽  
Insertion Torque ◽  
Resonance Frequency Analysis ◽  
Implant Stability ◽  
Reliable Determination ◽  
Torque Values ◽  
Finger Pressure

Abstract Background There is disagreement about the optimal torque for tightening smartpegs for resonance frequency analysis (RFA). Subjective finger pressure during hand tightening could affect the reliability of the resulting values. The aim of the current study was therefore to assess whether or not the insertion torque of a smartpeg magnetic device influences the implant stability quotient (ISQ) value during RFA. Methods Thirty self-tapping screw implants (XiVE S, Dentsply Sirona Implants, Bensheim, Germany) with a diameter of 3.8 mm and a length of 11 mm were inserted in three cow ribs with a bone quality of D1. The RFA value of each implant was measured (Ostell, FA W&H Dentalwerk, Bürmoos, Austria) in two orthogonal directions (mesial and buccal) after tightening the corresponding smartpeg type 45 with a mechanically defined value of 5 Ncm (Meg Torq device, Megagen, Daegu, South Korea) (test). Additionally, 4 different examiners measured the RFA after hand tightening the smartpegs, and the results were compared (control). Insertion torque values were determined by measuring the unscrew torque of hand seated smartpegs (Tohnichi Manufacturing Co. Ltd, Tokyo, Japan). Results The ISQ values varied from 2 to 11 Ncm by hand tightening and from 2 to 6 Ncm by machine tightening. The comparison of hand and machine tightening of smartpegs displayed only minor differences in the mean ISQ values with low standard deviations (mesial 79.76 ± 2,11, buccal 77.98 ± 2,) and no statistical difference (mesial p = 0,343 and buccal p = 0,890). Conclusions Manual tightening of smartpeg transducers allows for an objective and reliable determination of ISQ values during RFA.

Can Finger-Generated Force Be Used Reliably to Connect the Transducer for Resonance Frequency Analysis in Determining Implant Stability?

2020 ◽  
Vol 35 (6) ◽  
pp. 1141-1148
Author(s):  
André Pelegrine ◽  
Fabíola Kubo ◽  
Débora Salatti ◽  
Marcelo Teixeira ◽  
Alireza Moshaverinia ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Frequency Analysis ◽  
Resonance Frequency Analysis ◽  
Implant Stability

Comparison of Implant Stability by Means of Resonance Frequency Analysis for Flapless and Conventionally Inserted Implants

2011 ◽  
Vol 14 (6) ◽  
pp. 915-923 ◽  
Author(s):  
Joannis Katsoulis ◽  
Marianna Avrampou ◽  
Christian Spycher ◽  
Marko Stipic ◽  
Norbert Enkling ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Frequency Analysis ◽  
Resonance Frequency Analysis ◽  
Implant Stability
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