Comparison of two dental prescale systems used for the measurement of occlusal force

Shiga, Hiroshi; Komino, Marie; Uesugi, Hanako; Sano, Mako; Yokoyama, Masaoki; Nakajima, Kunihisa; Ishikawa, Ayano

doi:10.1007/s10266-020-00509-9

Cited by 42 publications

(45 citation statements)

References 29 publications

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“…Japan Fuji Co., Ltd. launched the Dental Prescale system in the early 1990s. The prescale system is a pressuresensitive film (Dental Prescale; Fujifilm Co., Tokyo, Japan) with analysis equipment (Occluzer FPD703; GC Corp., Tokyo, Japan) (Shiga et al, 2020). The pressure-sensitive film is a pressuresensitive horseshoe-shaped sheet comprised of two polyethylene terephthalate films and many microcapsules containing colorforming materials placed between them.…”

Section: Pressure Sensitive Filmmentioning

confidence: 99%

“…After recording, the film is stored in a light-resistant container and transported at room temperature for analysis. To maintain the reliability of the measurement, the data must be analyzed on the same day using the analysis equipment Occluzer FPD705 (FujiFilm GC) (Shiga et al, 2020). By scanning the colored image after compression, the number, position, force size and force distribution of the occlusal contact points are obtained.…”

Section: Pressure Sensitive Filmmentioning

confidence: 99%

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Bite Force Transducers and Measurement Devices

Bai

Xie

2021

Front. Bioeng. Biotechnol.

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In dental research, bite force has become an important curative effect evaluation index for tooth restoration, periodontal treatment, and orthodontic treatment. Bite force is an important parameter to evaluate the efficacy of the masticatory system. Physicians obtain the therapeutic basis for occlusal adjustment by measuring the bite force and the dynamic changes in occlusal contact at different stages of treatment and objectively evaluate the therapeutic effect. At present, many devices are used to record the bite force. Most of these devices use force transducers to detect bite force, such as strain gauge transducers, piezoresistive transducers, piezoelectric transducers, optical fiber transducers, and pressure-sensitive films. This article summarizes the various equipment used to record bite force, related materials and the characteristics of this equipment. It provides a reference for physicians to make choices during the clinical process and at the same time provides a basis for the development of new occlusal force measurement materials.

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Section: Pressure Sensitive Filmmentioning

confidence: 99%

Section: Pressure Sensitive Filmmentioning

confidence: 99%

Bite Force Transducers and Measurement Devices

Bai

Xie

2021

Front. Bioeng. Biotechnol.

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“…e Eichner index (EI) was used as an evaluation of occlusal condition based on existing natural tooth contacts between the maxilla and mandible in the bilateral premolar and molar regions. BF was recorded using the Bite Force Analyzing System (GC, Tokyo, Japan) [8]. is method uses a sheet that undergoes a color-developing chemical reaction when bitten.…”

Section: Clinicalmentioning

confidence: 99%

“…e number of bacteria was quantified (in cfu/mL) using the dielectrophoretic impedance measurement technique. e number of oral bacteria was classified into seven levels as follows: Level 1, <10 5 ; Level 2, 10 5 -10 6 ; Level 3, 10 6 -10 6.5 ; Level 4, 10 6.5 -10 7 ; Level 5, 10 7 -10 7.5 ; Level 6, 10 7.5 -10 8 ; and Level 7, >10 8 . e participants were divided into two groups: those > Level 5, indicative of the need for professional oral care, and those ≤ Level 5 [9].…”

Section: Clinicalmentioning

confidence: 99%

Impact of Progression of Parkinson’s Disease on Swallowing Ability and Oral Environment

Umemoto

Fujioka

Iwasa

et al. 2021

Parkinson's Disease

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This study investigated the impact of the severity and treatment of Parkinson’s disease (PD) on the swallowing ability and oral environment of patients. Swallowing dysfunction increases the aspiration risk and may lead to poor oral health among patients with PD. We investigated the influences of PD progression and drug treatment on the swallowing ability and oral environment using simple noninvasive screening measurements. We recruited 87 patients with PD (mean age, 71.9 ± 8.0 years; mean Hoehn and Yahr score, 2.9 ± 0.9). The PD condition was assessed in each patient using the unified Parkinson’s disease rating scale (UPDRS) part III, diet type and oropharyngeal function using the swallowing disturbances questionnaire (SDQ), maximum bite force (MBF), tongue pressure (TP), and oral bacterial count (OBC). Levodopa equivalent daily dose (LEDD) was also calculated for 56 participants. Based on an SDQ score of ≥11, 29.5% of patients were dysphagic, but almost all were still on a regular diet. The SDQ score was positively correlated with disease duration (rho = 0.228, p = 0.047 ) and UPDRS part III score (rho = 0.307, p = 0.007 ) but was negatively correlated with OBC (rho = −0.289, p = 0.012 ). OBC was significantly higher among patients with an SDQ score of <11 (nondysphagic) ( p = 0.01 ), and the SDQ score was lower in patients with higher OBC requiring professional oral care ( p = 0.03 ). However, OBC was also negatively correlated with LEDD (rho = −0.411, p = 0.004 ). These results indicated low self-awareness of dysphagia among the participants and an association between dysphagia and PD progression. Moreover, the oral environment could have deteriorated with swallowing dysfunction. Patients and clinicians should be aware that higher LEDD can increase xerostomia and associated deficits in oral health.

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“…To measure the MOF, a pressure-sensitive lm (Dental Prescale II, GC, Tokyo, Japan) was aligned with the dentition, and the participant was instructed to bite with maximum force. The scanner was calibrated [15], the pressuresensitive lm was tted to the template, and analysis was performed with analysis software (Bite Force Analyzer GC, Tokyo, Japan).…”

Section: Measurement Of Mof Ma Mmt and Mmeimentioning

confidence: 99%

Effect of isometric exercises on the masseter muscle in older adults with missing dentition: a randomized controlled trial

Takano¹,

Yamaguchi²,

Nakagawa³

et al. 2021

Preprint

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Maintaining oral function is important in older individuals with missing teeth for leading a healthy and independent life. This study aimed to evaluate whether simple isometric exercises can maintain and improve oral function (maximum occlusal force [MOF], masticatory ability [MA]) and masticatory muscle properties (masseter muscle thickness [MMT] and echo intensity [MMEI]) in older adults in the maintenance phase of removable prosthetic treatment. Participants were randomly allocated into intervention and control groups. The intervention group was instructed to perform maximum clenching for 10 s, whereas the control group was instructed to tap the teeth at an arbitrary speed for 10 s. Both were repeated five times at an interval of 5 s between each activity and twice a day for 4 weeks. The outcomes were measured after a month of exercise. The intervention group showed significant improvement in MOF, MMT during contraction, and MMEI during contraction. There was no significant difference in the MA and MMEI at rest. In the control group, no improvement was observed in any of the parameters. When the isometric exercises were performed using a mouthpiece, there was improvement in oral function and masseter muscle properties in older individuals with Eichner B status who used dentures.

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Comparison of two dental prescale systems used for the measurement of occlusal force

Cited by 42 publications

References 29 publications

Bite Force Transducers and Measurement Devices

Bite Force Transducers and Measurement Devices

Impact of Progression of Parkinson’s Disease on Swallowing Ability and Oral Environment

Effect of isometric exercises on the masseter muscle in older adults with missing dentition: a randomized controlled trial

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