Bite force measurement system using pressure-sensitive sheet and silicone impression material

Ando, Kazue; Fuwa, Yuji; Kurosawa, M; Kondo, Takamasa; Goto, Shigemi

doi:10.4012/dmj.28.212

Cited by 22 publications

(19 citation statements)

References 17 publications

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“…19 Moreover, its performance is not dependent on the proficiency of the examiner, and it is simple to use for objective evaluation of occlusal function. 12 In a previous study, occlusal contact area and force were reported to be greater in male patients than in female patients. Further, the occlusal contact area was reported to be larger in patients aged 40 years, while there was no statistically significant difference in the occlusal contact area among the three age groups (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30), and 31-40 years).…”

Section: Discussionmentioning

confidence: 89%

“…9 One study suggested possible discrepancies between results from dental casts and the actual occlusal contact during functional occlusion. 10 The Dental Prescale system (Fuji Film Corp, Tokyo, Japan) has been widely used to evaluate occlusal contact area and force due to its simplicity and objectivity, [11][12][13] but the scope of the research using this system has been limited to posttreatment changes during short-term follow-up over 1 year without consideration of pretreatment records.…”

Section: Introductionmentioning

confidence: 99%

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Changes in occlusal function after extraction of premolars: 2-year follow-up

Yoon

Hwang

Chung

et al. 2017

The Angle Orthodontist

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Objective: To determine the effects of extraction and the number of teeth extracted on changes in occlusal function by measuring occlusal contact area and force before and after orthodontic treatment with a fixed appliance. Materials and Methods: Female patients treated with a fixed appliance were divided into nonextraction (n ¼ 36), two maxillary premolar extraction (n ¼ 31), and four premolar extraction (n ¼ 18) groups. Bite pressure-sensitive films were used to analyze the occlusal contact area and force. Measurements were performed before treatment (Pre-Tx), immediately afterward (After-Tx), and 2 years later (2Y After-Tx). The data were analyzed using a linear mixed model and the post hoc Bonferroni test. Results: The occlusal contact area and force after treatment decreased significantly compared with Pre-Tx values but were increased 2 years later in all groups. There were no significant differences in occlusal contact area or force during the entire observation period among the three groups (P . .05). The occlusal contact area and force in the nonextraction and two maxillary premolar extraction groups recovered to Pre-Tx levels 2 years later (P . .05). The occlusal contact area in the four premolar extraction group was significantly lower than the Pre-Tx level after 2 years of retention (P , .05). Conclusions: The occlusal contact area and force showed a tendency to decrease immediately after treatment and then gradually increase to pretreatment levels during the observation period. However, the occlusal contact area did not recover fully after 2 years in the four premolar extraction group. (Angle Orthod. 2017;87:703-708.)

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Changes in occlusal function after extraction of premolars: 2-year follow-up

Yoon

Hwang

Chung

et al. 2017

The Angle Orthodontist

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“…Different occlusal indicators can be used during prosthodontic treatment for diagnosis and treatment purposes [16]. Qualitative indicators (articulating paper and articulating silk) can measure only the location and number of tooth contacts while quantitative indicators (electro-optic and resistive techniques such as T-scan) can measure the time and force characteristics of tooth/teeth contact [17]- [19].…”

Section: Discussionmentioning

confidence: 99%

The Relation between the Preferred Chewing Side and Occlusal Force Measured by T-Scan III System

Bicaj¹,

Pustina²,

Ahmedi³

et al. 2015

OJST

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Occlusal force has the main role in determining the teeth health in general and determining the chewing, muscle and TMJ function. The objective of this study was to find if there was any relation between the preferred chewing side and the force, measured by T-scan III system. The total number of 90 (46 female and 44 male) dental students was included in this study. They were asked whether their preferred chewing side was right, left or both. Afterwards, the occlusal forces in habitual occlusion, using T-Scan III Electronic device (IP-CO position mode, MA-mode, MA sensitivity setting) were measured. The data were presented as Mean ± SD. Spearman correlation was used to find the correlation between the occlusal force and chewing side. Differences in P < 0.05 were considered significant. There were 90 subjects (46 female and 44 male) mean age 23.3 (SD ± 2.2 years) included in the study. The preferred chewing side of 42 subjects was the right side, 24 of them preferred the left side and the other 24 preferred both sides as the chewing side. Occlusal force was higher in the preferred chewing side (P < 0.05) but using Spearman correlation, there was no statistical significance of occlusal force between the groups, the left side (r = −0.143, P > 0.05) and the right side (r = 0.143, P > 0.05) according to the preferred chewing side. In this study, the relation between the preferred chewing side and occlusal force was found.

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“…During an occlusal examination, the accurate measurement of tooth contacts can provide valuable information for diagnostic, treatment or prognostic purposes (1). Currently, this is achieved using occlusal indicators (or ‘bite registration’ strips) that are important tools in locating interferences and refining occlusal contacts during prosthodontic treatments (2).…”

Section: Introductionmentioning

confidence: 99%

Occlusal measurement method can affect SEMG activity during occlusion

Forrester

Presswood

Toy³

et al. 2011

J of Oral Rehabilitation

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Occlusal indicators are widely used in dental treatment to measure tooth contacts that occur during occlusion. However, the presence of an indicator may affect the mechanics of occlusion and lead to invalid tooth contact data. The objective of this study was to determine the effect of four indicators (Parkell, silk, T-Scan(®) sensor and paper) on surface electromyography (SEMG) activity during occlusion. Twenty-three subjects performed strong bites and maximum clenches onto the four indicators and natural dentition. Surface electromyography recordings of anterior temporalis and superficial masseter activity and the subjects' perception of each indicator were measured. SEMG activity with the T-Scan(®) sensor and paper was significantly different (higher masseter activity; P < 0·05) compared to that for natural dentition. The Parkell and silk gave no significant differences to natural dentition. Similarly, subjects perceived that T-Scan(®) sensor and paper had the greatest effect on occlusion and were the least comfortable (P < 0·05). Thus, the very plastic T-Scan(®) sensor and very thick articulating paper both affected SEMG activity during occlusion and, therefore, may not provide valid tooth contact information for dental treatment. In conclusion, occlusal indicators can change SEMG activity during occlusion which may affect the validity of the measurements they provide.

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Bite force measurement system using pressure-sensitive sheet and silicone impression material

Cited by 22 publications

References 17 publications

Changes in occlusal function after extraction of premolars: 2-year follow-up

Changes in occlusal function after extraction of premolars: 2-year follow-up

The Relation between the Preferred Chewing Side and Occlusal Force Measured by T-Scan III System

Occlusal measurement method can affect SEMG activity during occlusion

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