Modeling the electromechanical impedance technique for the assessment of dental implant stability

Ribolla, Emma La Malfa; Rizzo, Piervincenzo

doi:10.1016/j.jbiomech.2015.05.020

Cited by 21 publications

(5 citation statements)

References 40 publications

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“…Superscript 'M' and 'E' indicate mechanics and electrics. Using the principles of the EMI technique reported in several studies [26,28,34,39], we propose the experiment illustrated in figure 1(a). This shows two single mass-stiffness-damper systems that represent a portion of an alveolar bone-PDL-tooth assembly, with a piezoactuated device that is joined to a tooth.…”

Section: Electromechanical Impedance Technique For Detecting Stiffnes...mentioning

confidence: 99%

“…For example, [24,25] applied EMI technique in bones through PZT used as biosensors to detect damages such as fractures, and an emulated healing process. [2,26] determined the viability of using PZTs to assess the stability of inserted dental implants using numerical models and experiments. Also, EMI technique have shown factibility to be implemented even in hypereslastic materials, for future applications such as the detection of breast tummors [27].…”

Section: Introductionmentioning

confidence: 99%

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Electromechanical impedance measurements for bone health monitoring through teeth used as probes of a Piezo-device

Cardona

Tinoco

Marín-Berrio

et al. 2020

Biomed. Phys. Eng. Express

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Bone is a dynamic biological tissue that acts as the primary rigid support of the body. Several systemic factors are responsible for pathologies that negatively affect its structural attributes. Although the bone is in continuous renewal by osteogenesis, metabolic diseases are the most common affectations that alter its natural equilibrium. Different techniques based on ionizing radiation are used for the bone diagnosis restrictively. However, if these are not used adequately, the application could present risks for human health. In this paper, it is proposed and explored a new technique to apply an early-stage diagnosis of bone variations. The technique evaluates bone structural conditions from the teeth (used as probes) by applying a structural health monitoring (SHM) methodology. An experimental procedure is described to identify the stiffness variations produced by mechanical drillings done in prepared bone samples. The identification is carried out applying the electromechanical impedance technique (EMI) through a piezo-actuated device in the frequency spectrum 5–20kHz. Three bone samples with incorporated teeth (three teeth, two teeth, and one tooth) were prepared to emulate a mandibular portion of alveolar bone-PDL (periodontal ligament)-tooth system. Piezo-device was attached to the crown of the tooth with an orthodontic bracket allowing the teeth to act as probes. The electrical resistance measurements were computed with an electrical decoupling approach that improved the detection of the drillings; it was due to the increment of the sensitivity of the signals. The results showed that the bone mass reduction is correlated with statistical indices obtained in specific frequency intervals of the electrical resistance. This work suggests the possibility of a future application addressed to a bone diagnosis in a non-invasive way.

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Section: Electromechanical Impedance Technique For Detecting Stiffnes...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromechanical impedance measurements for bone health monitoring through teeth used as probes of a Piezo-device

Cardona

Tinoco

Marín-Berrio

et al. 2020

Biomed. Phys. Eng. Express

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show abstract

“…These waves were used by Rizzo and co-authors for nondestructive evaluation (NDE) and structural health monitoring applications (SHM) [11][12][13][14]. This is another example of integrating multiple disciplines between the engineering development and biomedical devices developed by Rizzo and co-authors, as done for example in [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Predicting intraocular pressure utilizing highly nonlinear solitary waves as inputs to a CNN

Hodgson,

Rizzo,

Dickerson

et al. 2024

Health Monitoring of Structural and Biological Systems XVIII

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Highly nonlinear solitary waves (HNSWs) are traditionally used in the field of nondestructive evaluation to inspect a material's property without causing damage. The research in this paper proposes a new application for HNSWs: predicting changes in intraocular pressure (IOP) to ensure optimum treatment and prevent the progression of Glaucoma in an eye. The HNSWs used for assessment were collected from a Polydimethylsiloxane (PDMS) eye model and are initiated and stored with a solitary wave transducer. To collect a full range of HNSWs that represent the biological range of IOPs in humans, the PDMS eye model is pressurized from 12mmHg to 26mmHg with 1mmHg increments and waves are collected at each pressure point. Once a HNSW is collected, it is wirelessly transmitted to a server where it is fed into a convolutional neural network to predict the IOP. This is done by extracting relevant features from the HNSW with a Fast Fourier Transform and constructing a spectrogram which can be fed into the algorithm pixel by pixel. This methodology works due to the association of frequency content in the HNSW and changes of the stiffness in the material. In the case of high IOP, the increased pressure pushes against the artificial PDMS cornea and causes it to become stiffer with a higher Young's modulus. We evaluated the ability of the algorithm to predict IOP based on the spectrogram.

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“…This technique has been proposed for bio-structural diagnosis in search of biomedical applications. Ribolla & Rizzo [14] and Tabrizi et al [15] explored the viability of using electrical impedance measurements in a dental implant to evaluate the condition of structural stability after its insertion. Tinoco et al [16] carried out electrical impedance measurements for assessing a bone-implant interaction that emulates a total knee replacement case.…”

Section: Introductionmentioning

confidence: 99%

Identification of Bone Density Changes Applying Impedance Spectroscopy with a Piezo-Device Coupled to a Human Tooth

Ortiz-Jimenez

Tinoco

Cardona

et al. 2021

JBBBE

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Bone tissue is a calcium deposit and supporting structure of the human body, it is exposed to several pathologies that modify its mineral content. To determine these changes, different diagnostic procedures are performed with techniques using invasive ionizing radiation, which are limited by the negative effects in the long term on human health. A methodology is explored that could be applicable in the diagnosis of pathologic variations in bone mineral density, using structural monitoring tools. The proposed technique estimates changes in bone conditions by applying impedance spectroscopy with a tooth-borne piezo-device. Bone-tooth samples were prepared to simulate a section of maxillary bone and subsequently treated with chemical agents, simulating pathologic decalcification. The piezo-device is inserted in the slot of an orthodontic bracket, previously bonded to the crown of the tooth, in order to transmit vibration to surrounding bone. The variations in bone micro-architecture were computed by image processing analyzed with samples prepared in transparent resin, allowing the measurement of morphometry before and after the induced changes in mineral content. Using vibrational bone response, impedance measurements allowed to observe the variations in bone mass as the samples were progressively decalcified. In the 5-50kHz spectrum, it was demonstrated the sensitivity of the electro-mechanical impedance during the bone alteration procedure since the electrical resistance signals of the piezo-device consistently changed in the frequency spectrum (5-50kHz). The piezo-device shows to be sensitive to the changes produced by the bone alterations, which were caused by the stiffness variations made in the sample during the decalcifying. These changes were statistically correlated to demonstrate that in a less invasive way, bone alterations could be monitored from the teeth. This result opens the door to search for a new way to diagnose bone density changes in real applications.

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Modeling the electromechanical impedance technique for the assessment of dental implant stability

Cited by 21 publications

References 40 publications

Electromechanical impedance measurements for bone health monitoring through teeth used as probes of a Piezo-device

Electromechanical impedance measurements for bone health monitoring through teeth used as probes of a Piezo-device

Predicting intraocular pressure utilizing highly nonlinear solitary waves as inputs to a CNN

Identification of Bone Density Changes Applying Impedance Spectroscopy with a Piezo-Device Coupled to a Human Tooth

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