Role of Clinician's Experience and Implant Design on Implant Stability. An Ex Vivo Study in Artificial Soft Bones

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.

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The Influence of Implant Shape on Primary Stability of Implants With a Thread Cutting and Forming Design: An Ex Vivo Study

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-18-00158 ◽

2019 ◽

Vol 45 (3) ◽

pp. 181-185 ◽

Cited By ~ 2

Author(s):

Cagatay Dayan ◽

Onur Geckili ◽

Canan Bural

Keyword(s):

Ex Vivo ◽

Primary Stability ◽

Type I ◽

Resonance Frequency Analysis ◽

Implant Stability ◽

Thread Cutting ◽

Type Iii ◽

Experienced Clinician ◽

Significant Difference ◽

Ex Vivo Study

The design of an implant has a great effect on primary stability. The purpose of this study was to determine the differences in primary stability between straight and tapered Neoss ProActive implants in type I and type III bones using resonance frequency analysis (RFA) and electronic percussive testing (EPT) methods. Fresh cow vertebrae and pelvis were used as models of type III and type i bone, respectively. Implants of 2 different designs—straight and tapered Neoss ProActive implants with a thread cutting and forming (TCF) design, both 3.5-mm wide and 11-mm long—were placed in both types of bone (n = 60). The primary stability of all implants was measured by an experienced clinician blinded to the study protocol using the EPT and RFA devices. No statistically significant difference was found between the implant stability quotients and the percussive test values of straight and tapered implants in either bone type. Within the limitations of this ex vivo study, it may be concluded that the shape of an implant with a TCF design does not affect primary stability.

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Relation between bone quality values from ultrasound transmission velocity and implant stability parameters - an ex vivo study

Clinical Oral Implants Research ◽

10.1111/j.1600-0501.2011.02250.x ◽

2011 ◽

Vol 23 (8) ◽

pp. 975-980 ◽

Cited By ~ 14

Author(s):

Vinay V. Kumar ◽

Keyvan Sagheb ◽

Marcus O. Klein ◽

Bilal Al-Nawas ◽

Peter H. Kann ◽

...

Keyword(s):

Bone Quality ◽

Ex Vivo ◽

Implant Stability ◽

Stability Parameters ◽

Ex Vivo Study ◽

Transmission Velocity

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Mandibular Bone Structure Analysis Using Cone Beam Computed Tomography vs Primary Implant Stability: An Ex Vivo Study

The International Journal of Oral & Maxillofacial Implants ◽

10.11607/jomi.6210 ◽

2017 ◽

Vol 32 (6) ◽

pp. 1257-1265 ◽

Cited By ~ 3

Author(s):

Ruben Pauwels ◽

Somchai Sessirisombat ◽

Soontra Panmekiate

Keyword(s):

Computed Tomography ◽

Structure Analysis ◽

Cone Beam Computed Tomography ◽

Bone Structure ◽

Ex Vivo ◽

Cone Beam ◽

Implant Stability ◽

Mandibular Bone ◽

Primary Implant ◽

Ex Vivo Study

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Determination of the Optimum Torque to Tighten the Smartpegs of Magnetic Resonance Frequency Analyses Devices: An Ex Vivo Study

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-14-00266 ◽

2015 ◽

Vol 41 (6) ◽

pp. e252-e256 ◽

Cited By ~ 1

Author(s):

Onur Geckili ◽

Altug Cilingir ◽

Canan Bural ◽

Caglar Bilmenoglu ◽

Hakan Bilhan

Keyword(s):

Ex Vivo ◽

The Other ◽

Implant Stability ◽

Implant Stability Quotient ◽

Magnetic Resonance Frequency ◽

Optimal Value ◽

Torque Values ◽

Ex Vivo Study ◽

Finger Pressure

The aim of this study was to find an optimal value for tightening the Smartpegs for magnetic radiofrequency analysis devices (RFAs) devices. Thirty implants were placed in 3 cow ribs. The RFA value of each implant was measured in buccal and mesial directions after tightening the Smartpegs with 1, 3, 4, 8, 9, 10, and 11 Ncm. Additionally, 4 different examiners measured the RFA after hand tightening the Smartpegs, and the results were compared. The buccal implant stability quotient (ISQ) values when the Smartpegs were tightened to 1Ncm were significantly lower than the ISQ values when the Smartpegs were tightened to 3, 4, 8, 9, 10, and 11 Ncm (P < .05). The mesial ISQ values when the Smartpegs were tightened to 1, 3, and 4 Ncm were significantly lower than the ISQ values when the Smartpegs were tightened with higher torque values (P < .05). The buccal measurements made by 1 examiner was significantly lower than 3 Ncm (P < .05), and the buccal measurements made by 1 examiner was significantly lower than 4 Ncm (P < .05). The mesial ISQ values measured by 2 examiners were significantly lower than 3 Ncm (P < .05), and the mesial ISQ values measured by the other 2 examiners were significantly lower than 8 Ncm (P < .05). The tightening of the Smartpegs should be standardized by the manufacturer to a range of 5-8 Ncm in order to gain reliable objective RFA values, instead of leaving it to subjective finger pressure.

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