Measuring tooth mobility with a no‐contact vibration device

Yamane, M.; Yamaoka, Masaru; Hayashi, Makoto; Furutoyo, Ikutaro; Komori, Norio; Ogiso, Bunnai

doi:10.1111/j.1600-0765.2007.00997.x

Cited by 22 publications

(23 citation statements)

References 6 publications

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“…This device analyzes both tooth mobility and periodontal tissue conditions using mechanical parameters (resonant frequency, elastic modulus, and viscosity coefficient) by measuring the vibration of the tooth. As previously described, the NEVD accurately assessed bottom thickness and qualitative changes in a simulated periodontal ligament and alveolar bone in an experimental tooth model (14,16). In addition, the NEVD was able to monitor both periodontal tissue condition and implant stability, using the same mechanical parameters (15).…”

Section: Introductionmentioning

confidence: 90%

“…Moreover, it is important to objectively determine the mechanical condition of periodontal tissue (8-10). The NEVD was developed by using simulated tooth models and assesses these mechanical conditions (14)(15)(16). However, to detect vibration, an accelerometer must be attached to the target tooth.…”

Section: Discussionmentioning

confidence: 99%

“…However, these recommendations are difficult to implement when assessing posterior teeth (11). To accurately evaluate overall periodontal tissue condition, we previously developed a non-contact electromagnetic vibration device (NEVD) (14)(15)(16). This device analyzes both tooth mobility and periodontal tissue conditions using mechanical parameters (resonant frequency, elastic modulus, and viscosity coefficient) by measuring the vibration of the tooth.…”

Section: Introductionmentioning

confidence: 99%

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Use of a laser displacement sensor with a non-contact electromagnetic vibration device for assessment of simulated periodontal tissue conditions

et al. 2016

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A non-contact electromagnetic vibration device (NEVD) was previously developed to monitor the condition of periodontal tissues by assessing mechanical parameters. This system requires placement of an accelerometer on the target tooth, to detect vibration. Using experimental tooth models, we evaluated the performance of an NEVD system with a laser displacement sensor (LDS), which does not need an accelerometer. Simulated teeth (polyacetal rods) were submerged at various depths in simulated bone (polyurethane or polyurethane foam) containing simulated periodontal ligament (tissue conditioner). Then, mechanical parameters (resonant frequency, elastic modulus, and viscosity coefficient) were assessed using the NEVD with the following detection methods: Group 1, measurement with an accelerometer; Group 2, measurement with an LDS in the presence of the accelerometer; and Group 3, measurement with an LDS in the absence of the accelerometer. Statistical analyses were performed using nonparametric methods (n = 5) (P < 0.05). The three mechanical parameters significantly increased with increasing depth. In addition, the mechanical parameters significantly differed between the polyurethane and polyurethane foam models. Although Groups 1 and 2 did not significantly differ, most all mechanical parameters in Group 3 were significantly larger and more distinguishable than those in Groups 1 and 2. The LDS was more accurate in measuring mechanical parameters and better able to differentiate periodontal tissue conditions. (J Oral Sci 58, [93][94][95][96][97][98][99] 2016)

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Section: Introductionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of a laser displacement sensor with a non-contact electromagnetic vibration device for assessment of simulated periodontal tissue conditions

et al. 2016

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“…The support of a tooth is provided by the combined action of the PDL and the alveolar bone, and the PDL is a thin viscoelastic tissue made up of thousands of fibers to support the tooth [20,21]. The dynamic property of a tooth is proved to be a valid way to evaluate the condition of periodontal tissues [15,22]. Many investigations concentrate on measuring vibration frequency of a tooth in vivo and in vitro [23,24].…”

Section: Discussionmentioning

confidence: 99%

“…The alveolar bone was considered immovable, the restrictions of displacement were applied on the exterior surface of the PDL in three-directions [14,15]. To validate the model, the modal analysis of the maxillary molar in the periodontal system was performed at first using MSC software MARC-FEA.…”

Section: Numerical Approachmentioning

confidence: 99%

Finite Element Analysis of the Dynamic Response of the Maxillary Molar under Impact Loading

Xin¹,

Wu²,

Li³

et al. 2017

Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)

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Abstract. The dynamic response of a maxillary molar with periodontal ligament (PDL) was investigated to explore the dynamic behavior of the tooth. Three-dimensional (3D) finite element model of a maxillary molar with periodontium was constructed using CT image-reconstruction. The modal vibration of the maxillary molar in the periodontal system was performed at first, and then the dynamic response of the tooth under an impact loading was calculated and compared with the results of the different periodontal attachments in order to assess the condition of the periodontium. The first four modes were dominant in the modal vibration. The resonant frequency of the maxillary molar under the impact loading was close to the frequency of the second mode in the modal analysis. The resonant frequency decreased gradually with the loss of alveolar bone, while the resonant amplitude increased nonlinearly. The resonant frequency and amplitude of the maxillary molar can be used to describe the loss of alveolar bone and the condition of periodontium.

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Digitization in Periodontics

Kulkarni

2021

Digitization in Dentistry

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Measuring tooth mobility with a no‐contact vibration device

Cited by 22 publications

References 6 publications

Use of a laser displacement sensor with a non-contact electromagnetic vibration device for assessment of simulated periodontal tissue conditions

Use of a laser displacement sensor with a non-contact electromagnetic vibration device for assessment of simulated periodontal tissue conditions

Finite Element Analysis of the Dynamic Response of the Maxillary Molar under Impact Loading

Digitization in Periodontics

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