Resonance frequency measurements of implant stability in the dog mandible: experimental comparison with histomorphometric data

2006 ◽  
Vol 35 (10) ◽  
pp. 941-946 ◽  
Author(s):  
H. Schliephake ◽  
A. Sewing ◽  
A. Aref
Keyword(s):  
Resonance Frequency ◽  
Experimental Comparison ◽  
Implant Stability ◽  
Frequency Measurements

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.

scholarly journals Comparative radiographic and resonance frequency analyses of the peri-implant tissue after dental implants placement using flap and flapless techniques: An experimental study on domestic pigs

2013 ◽  
Vol 70 (6) ◽  
pp. 586-594 ◽  
Author(s):  
Zoran Vlahovic ◽  
Branko Mihailovic ◽  
Zoran Lazic ◽  
Mileta Golubovic
Keyword(s):  
Bone Resorption ◽  
Resonance Frequency ◽  
Dental Implants ◽  
Dental Implant ◽  
Surgical Techniques ◽  
Primary Stability ◽  
Implant Stability ◽  
Domestic Pigs ◽  
Flap Technique ◽  
Implant Placement

Background/Aim. Flapless implant surgery has become very important issue during recent years, mostly thanks to computerization of dentistry and software planning of dental implants placements. The aim of this study was to compare flap and flapless surgical techniques for implant placement through radiographic and radiofrequency analyses. Methods. The experiment was made in five domestic pigs. Nine weeks following domestic pigs teeth extraction, implants were placed, on the right side using surgical technique flap, and flapless on the left side. Digital dental Xrays were applied to determine primary dental implant stability quality (ISQ). At certain intervals, not later than three months, the experimental animals were sacrificed, and just before it, control X-rays were applied to measure dental implants stability. Results. Radiographic analysis showed that peri-implant bone resorption in the first 4 weeks following placement implants with flap and flapless surgical techniques was negligible. After the 3 months, mean value of peri-implant bone resorption of the implants placed using flap technique was 1.86 mm, and of those placed using flapless technique was 1.13 mm. In relation to the primary dental implant stability in the first and second week there was an expected decrease in ISQ values, but it was less expressed in the dental implants placed using the flapless technique. In the third week the ISQ values were increased in the dental implants placed by using both techniques, but the increase in flapless implant placement was higher (7.4 ISQ) than in flap implant placement (1.5 ISQ). The upward trend continued in a 4- week period, and after 3 months the dental implant stability values in the implants placed using flap technique were higher than the primary stability for 7.1 ISQ, and in the implants placed using flapless technique were higher comparing to the primary stability for 10.1 ISQ units. Conclusion. Based on the results of radiographic and resonance frequency analyses it can be concluded that the flapless technique in surgical implants placemat, leads to better results.

Initial Stability Measurements of Implants Using a New Magnetic Resonance Frequency Analyzer with Titanium Transducers: An Ex Vivo Study

2020 ◽  
pp. 0000-0000 ◽  
Author(s):  
Canan Bural ◽  
Cagatay Dayan ◽  
Onur Geckili
Keyword(s):  
Resonance Frequency ◽  
Dental Implant ◽  
Ex Vivo ◽  
Resonance Frequency Analysis ◽  
Implant Stability ◽  
Clinical Measurement ◽  
Observer Reliability ◽  
Initial Stability ◽  
Magnetic Resonance Frequency ◽  
Ex Vivo Study

The establishment of stability of a dental implant is mandatory for successful osseointegration. Resonance frequency analysis (RFA) is the most frequently used method for the clinical measurement of implant stability. The purpose of the present study was to evaluate the reliability of the recently developed RF analyzer named as Penguin RFA and to compare it with the traditional RF analyzer Osstell ISQ. Sixty implants were inserted into fresh vertebrae and pelvis belonging to a steer. Implant stability was measured using Penguin RFA by its transducers (multipegs) and Osstell ISQ by its transducers (smartpegs). Additionally, stability was measured by multipegs with Osstell ISQ and by smartpegs with Penguin RFA. The intra-observer and inter-observer reliability of Penguin RFA were estimated by the intra-class coefficient (ICC). Mean implant stability quotients (ISQs) measured with Osstell ISQ were higher than the ISQs measured with Penguin RFA (P<.05). The intra- and inter-observer reliability of Penguin RFA were considered as excellent (ICC > 0.7). For Osstell ISQ, no significance in ISQs was detected between the readings by smartpegs and multipegs (P > .05) while for Penguin RFA ISQs by smartpegs were significantly higher than the ISQs by multipegs (P <.05). Recently developed Penguin RFA, is reliable and can be used in the clinical practice for the measurement of dental implant stability in regardless of the bone type. The multipegs originally manufactured for the Penguin RFA is also compatible with Osstell ISQ.

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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