Comparative evaluation of implant stability in two different implant systems at baseline and 3–4 months intervals using RFA device (OSSTELL ISQ)

Kastala, Vidya Hiranmayi; Rao, Mulpuri Venkata Ramoji

doi:10.4103/ijdr.ijdr_446_17

Cited by 7 publications

(8 citation statements)

References 18 publications

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“…For the extra-short implants investigated, the mean RFA value of 54.2 ISQ measured at the time of implant placement (baseline) demonstrates the difficulty of obtaining initial stability in maxillary posterior regions, as this was considerably lower than mean values recorded in studies of the mandible where bone characteristics favor initial stability [6][7][8][9]25,26,30]. Primary implant stability was obtained following a conventional drilling protocol, which may be further enhanced by underpreparing the osteotomy and osteotomes [31,32].…”

Section: Discussionmentioning

confidence: 89%

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Prospective, Clinical Pilot Study with Eleven 4-Mm Extra-Short Implants Splinted to Longer Implants for Posterior Maxilla Rehabilitation

Torassa

Naldini

Calvo-Guirado

et al. 2020

JCM

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In many clinical situations, rehabilitation with implants in the posterior maxillary region is complicated by limited bone availability. In this context, the use of 4 mm long implants (known as extra-short implants) may be used thanks to the concept of osseointegration enhancement. It has been demonstrated that short implants offer an alternative to the regeneration procedures involved in placing longer implants in areas where bone height is compromised. This prospective pilot study tested a treatment protocol in which 11 extra-short (4 mm) implants were splinted to 11 mesially placed longer (8 mm) implants in the posterior maxillary regions of partially edentulous patients, without using supplementary bone regeneration procedures. Eleven patients were included in this single cohort study. The clinical performance of the extra-short implants was assessed during a two-year follow-up period, obtaining a 100% survival rate and mean bone loss of 0.3 mm. Implant stability measured by resonance frequency analysis (RFA) at the time of placement was 54.9 ± 4.9, increasing to 77.0 ± 2.6 at 24 months. The study demonstrated the gradual consolidation of osseointegration in bone of less-than-ideal quality in the posterior maxillary region. The results obtained show that a partially edentulous maxilla with reduced bone height may be rehabilitated by using an extra-short implant splinted to a mesial implant of 8mm length or longer. Despite the small sample size, this pilot study observed that extra-short implants achieved adequate bone stability and clinical performance after a 24-month follow-up.

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Section: Discussionmentioning

confidence: 89%

“…Resonance frequency analysis (RFA) was used to assess implant stability using an Osstell device (Osstell AB, Gothenburg, Sweden) [26,27].…”

Section: Calibrationmentioning

confidence: 99%

Prospective, Clinical Pilot Study with Eleven 4-Mm Extra-Short Implants Splinted to Longer Implants for Posterior Maxilla Rehabilitation

Torassa

Naldini

Calvo-Guirado

et al. 2020

JCM

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“…The minimum insertion torque necessary to achieve implant osseointegration is undefined, while a positioning torque ≥30 Ncm is clinically required for immediate loading protocol into healed bone ridges and post-extraction alveolar sockets [27]. The implant stability quotient (ISQ) is a reproducible, repeatable, and highly predictive measurement for dental implant stability [32]. This procedure has been proposed to evaluate the stability and clinical prognosis of teeth and dental implants in the oral cavity as a cost-effective and non-operator-dependent diagnostic technique [32].…”

Section: Introductionmentioning

confidence: 99%

“…The implant stability quotient (ISQ) is a reproducible, repeatable, and highly predictive measurement for dental implant stability [32]. This procedure has been proposed to evaluate the stability and clinical prognosis of teeth and dental implants in the oral cavity as a cost-effective and non-operator-dependent diagnostic technique [32].…”

Section: Introductionmentioning

confidence: 99%

Comparative Evaluation of Primary Stability between Different Diameters Multi-Scale Roughness Dental Implant by Solid Rigid Polyurethane Simulation

et al. 2021

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Background: Implant primary stability is determined by screw characteristics and surgical procedure. The aim of the present study was to evaluate, on a polyurethane model, the insertion torque (IT), removal torque (RT), and resonance frequency analysis (RFA) of multi-scale roughness dental implants of different diameters. Methods: Two implant sizes were tested on two polyurethane blocks (20 pounds per cubic foot (PCF) and 30 PCF): 3.0 diameter and 13 mm length and 5.0 diameter and 13 mm length. The IT, RT, and RFA were assessed. Results: A significant difference of IT and RT was present in favor of wider implants at both polyurethane densities. No statistical difference was present between the 5.0 diameter and 3.0 diameter implants at both polyurethane densities. A statistically increased RFA was reported for 5.0 implant 30 PCF polyurethane blocks. Conclusions: Multi-scale roughness dental implants of both diameters showed high insertion torque and primary stability on polyurethane blocks, which is valuable for implant loading protocols.

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“…Percussion test, pulsed oscillation waveform and implant hammer method are similar to principles used in periodontics, which are based on vibration, mechanical and acoustic signals (meredith, 1998;Dario, Cucchiaro and Deluzio, 2002;Jung et al, 2003;Atsumi, Park and Wang, 2007;VanSchoiack et al, 2013;Nallaswamy, 2017). The best method uses resonance frequency analysis (rfA) that measures the implant stability quotient (ISQ), with values greater than 65 showing good osseointegration (ersanli et al, 2005;Deng et al, 2008;Abrahamsson, linder and lang, 2009;bafijari et al, 2019;Charatchaiwanna et al, 2019;Kastala and ramoji rao, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bone Bonding of Hafnium – A Literature Review

Rajaraman¹

2020

Biosci. Biotech. Res. Comm

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Numerous biomaterials have been constantly researched upon for dental implants. We wanted to evaluate alternative elements that may have the potential to offer equivalent or superior osseointegration. One such element of interest is Hafnium. In the periodic table by IUPAC, tantalum belongs to period 6 (d block) of periodic table. Hafnium belongs to the same period and block as tantalum, in the periodic table. Various in vitro studies were conducted on hafnium metal. Studies have reported that hafnium has a similar response in soft and hard tissues in two different animal species (rat and rabbit), which suggests that hafnium might be an interesting material for biomedical applications. This review aims at analysing the existing literature on hafnium as potential implant biomaterial.

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Comparative evaluation of implant stability in two different implant systems at baseline and 3–4 months intervals using RFA device (OSSTELL ISQ)

Cited by 7 publications

References 18 publications

Prospective, Clinical Pilot Study with Eleven 4-Mm Extra-Short Implants Splinted to Longer Implants for Posterior Maxilla Rehabilitation

Prospective, Clinical Pilot Study with Eleven 4-Mm Extra-Short Implants Splinted to Longer Implants for Posterior Maxilla Rehabilitation

Comparative Evaluation of Primary Stability between Different Diameters Multi-Scale Roughness Dental Implant by Solid Rigid Polyurethane Simulation

Bone Bonding of Hafnium – A Literature Review

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