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

Kästel, Ingrid; Quincey, Giles de; Neugebauer, Jörg; Sader, Robert; Gehrke, Peter

doi:10.1186/s40729-019-0195-1

Cited by 19 publications

(12 citation statements)

References 31 publications

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“…It is known that increased probing depths indicate peri‐implant bone loss 18 . The ISQ measurement with the Ostell device is a reproducible method 19 and a widely accepted method for determining implant stability 20 . According to the manufacturer's information (W&H), a load from a value of 60 and over is possible.…”

Section: Discussionmentioning

confidence: 99%

Tooth shell technique: A proof of concept with the use of autogenous dentin block grafts

Korsch

2021

Australian Dental Journal

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Background: Autogenous bone block graft is considered the gold standard for lateral bony defects. Dentin has been identified to be a suitable autogenous bone graft material due to its structural and chemical similarities to the alveolar bone. Methods: This proof of concept study describes the clinical application of the tooth shell technique in 24 sites with 27 implants of 22 patients. A tooth shell was fixed laterally to the defect with microscrews. Distance between the shell and the residual bone was filled with particulate remnants of the tooth root. Implant was inserted simultaneously. Cone beam computed tomography was done after implant insertion (T1) and 3 months later at time of implant exposure (T2). Target parameters were biological complications and the resorption of hard tissue graft. Results: Even though a graft exposure occurred in one case (4.5% on patient-level), all implants showed enough implant stability and were able to be loaded. At T2, the evaluation of the X-rays showed no case with hard tissue loss at the mesial or distal implant shoulder. All implants were completely osseointegrated. Conclusions: The tooth shell technique showed promising results for the reconstruction of lateral alveolar crest defects. It may be considered to serve as an alternative material to avoid bone harvesting procedures.

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Section: Discussionmentioning

confidence: 99%

Tooth shell technique: A proof of concept with the use of autogenous dentin block grafts

Korsch

2021

Australian Dental Journal

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“…However, some aspects that could affect ISQ values, such as implant length and diameter were controlled using the same implant size for all measurements. Another limitation was the manual tightening of the transducers, but this technique was previously reported to be objective and reliable [20]. Finally, it was not possible to blind the investigators within the instrument used, and the study was performed in an animal model.…”

Section: Discussionmentioning

confidence: 99%

Reliability and Agreement of Three Devices for Measuring Implant Stability Quotient in the Animal Ex Vivo Model

et al. 2021

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Resonance frequency analysis (RFA) is the most extended method for measuring implant stability. The implant stability quotient (ISQ) is the measure obtained by different RFA devices; however, inter- and intra-rater reliability and agreement of these instruments remain unknown. Thirty implants were placed in three different pig mandibles. ISQ was measured parallel and perpendicular (lingual) to the peg axis with Osstell® Beacon, Penguin® and MegaISQ® by two different investigators and furthermore, one performed a test-retest. Intraclass correlation coefficient was calculated to assess the intra- and inter-rater reliability. Pearson correlation coefficient was used to assess the agreement. Intraclass correlation coefficients ranged from 0.20 to 0.65 for the Osstell® Beacon; 0.57 to 0.86 for the Penguin®; and −0.01 to 0.60 for the MegaISQ®. The highest ISQ values were obtained using Penguin® (66.3) in a parallel measurement; the lowest, using the MegaISQ® (60.1) in a parallel measurement. The highest correlation values with the other devices were obtained by MegaISQ® in a parallel measurement. Osstell® Beacon and MegaISQ® showed lower reliability than Penguin®. Osstell® had good agreement for measuring ISQ both in parallel and perpendicular, and MegaISQ® had the best agreement for measuring ISQ in parallel.

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“…The definition of early loading is not based on specific biological criteria, and the timing can make a significant difference in the stages of healing [ 41 ]. Therefore, the use of transepithelial abutments of different heights (on which the SmartPeg can be screwed), placed on the day of surgery and maintained throughout the healing process, allows the implants to be monitored during the descent and subsequent ascent of implant stability, applying a minimum torque (4–5 N) [ 25 ], instead of the 10N needed to unscrew a conventional transepithelial abutment to perform RFA directly to the implant platform, thus minimizing the risk of implant failure [ 40 , 41 , 42 , 43 , 44 , 45 ]. The implementation of an RFA measurement protocol through transepithelial abutments can decrease the pre-established loading times and therefore produce an improvement in the implant treatment quality [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

Reliability of the Resonance Frequency Analysis Values in New Prototype Transepithelial Abutments: A Prospective Clinical Study

Guerrero-González

Monticelli

García-Martín

et al. 2020

IJERPH

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Resonance frequency analysis (RFA) requires abutment disconnection to monitor implant stability. To overcome this limitation, an experimental transepithelial abutment was designed to allow a SmartPeg to be screwed onto it, in order to determine the prototype abutments repeatability and reproducibility using Osstell ISQ and to assess whether implant length and diameter have an influence on the reliability of these measurements. RFA was conducted with a SmartPeg screwed directly into the implant and onto experimental abutments of different heights of 2, 3.5 and 5 mm. A total of 32 patients (116 implants) were tested. RFA measurements were taken twice for each group from mesial, distal, buccal and palatal/lingual surfaces. Mean values and SD were calculated and Intraclass Correlation Coefficients (ICC) (p < 0.05, IC 95%). The implant stability quotient (ISQ) mean values were 72.581 measured directly to implant and 72.899 (2 mm), 72.391 (3.5 mm) and 71.458 (5 mm) measured from the prototypes. ICC between measurements made directly to implant and through 2-, 3.5- and 5-mm abutments were 0.908, 0.919 and 0.939, respectively. RFA values registered through the experimental transepithelial abutments achieved a high reliability. Neither the implant length nor the diameter had any influence on the measurements’ reliability.

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

Cited by 19 publications

References 31 publications

Tooth shell technique: A proof of concept with the use of autogenous dentin block grafts

Tooth shell technique: A proof of concept with the use of autogenous dentin block grafts

Reliability and Agreement of Three Devices for Measuring Implant Stability Quotient in the Animal Ex Vivo Model

Reliability of the Resonance Frequency Analysis Values in New Prototype Transepithelial Abutments: A Prospective Clinical Study

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