Development of in vivo measuring system of the pressure distribution under the denture base of removable partial denture

Kubo, Kei; Kawata, Tetsuo; Suenaga, Hiroshi; Yoda, Nobuhiro; Shigemitsu, Ryuji; Ogawa, Takumi; Sasaki, Keiichi

doi:10.1016/j.jpor.2008.08.006

Cited by 28 publications

(31 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it has been difficult to simulate the intraoral conditions (e.g., the direction of the force exerted by jaw muscles or the viscoelasticity of the ridge mucosa) accurately in vitro which may affect the results of pressure distribution under denture bases (Kubo et al. ).…”

mentioning

confidence: 99%

A comparison of mandibular denture base deformation with different impression techniques for implant overdentures

ELsyad

El-Waseef

Al-Mahdy

et al. 2012

Clinical Oral Implants Res

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 99%

A comparison of mandibular denture base deformation with different impression techniques for implant overdentures

ELsyad

El-Waseef

Al-Mahdy

et al. 2012

Clinical Oral Implants Res

View full text Add to dashboard Cite

show abstract

“…For the in vivo measurement of contact pressure, a duplicate RPD was fabricated with 1.0 mm offset at the denture base, for accommodating a tactile sensor sheet with the same thickness to measure the contact pressure under the denture base (Conformable TactArray Sensor TM, Pressure Profile Systems Inc., CA, USA) ( Figure 1 (b)) (Kubo et al 2009). Electrode strips, 2 mm in width, were regularly arranged in an orthogonal fashion, and the 30 overlapping areas worked as sensing points to measure the pressure distribution in the regions of interest (ROI).…”

Section: Ct Scan and In Vivo Contact Pressure Measurementmentioning

confidence: 99%

Determination of oral mucosal Poisson’s ratio and coefficient of friction fromin-vivocontact pressure measurements

Chen

Suenaga

Hogg

et al. 2015

Computer Methods in Biomechanics and Biomedical Engineering

Self Cite

View full text Add to dashboard Cite

Despite their considerable importance to biomechanics, there are no existing methods available to directly measure apparent Poisson's ratio and friction coefficient of oral mucosa. This study aimed to develop an inverse procedure to determine these two biomechanical parameters by utilizing in vivo experiment of contact pressure between partial denture and beneath mucosa through nonlinear finite element (FE) analysis and surrogate response surface (RS) modelling technique. First, the in vivo denture-mucosa contact pressure was measured by a tactile electronic sensing sheet. Second, a 3D FE model was constructed based on the patient CT images. Third, a range of apparent Poisson's ratios and the coefficients of friction from literature was considered as the design variables in a series of FE runs for constructing a RS surrogate model. Finally, the discrepancy between computed in silico and measured in vivo results was minimized to identify the best matching Poisson's ratio and coefficient of friction. The established non-invasive methodology was demonstrated effective to identify such biomechanical parameters of oral mucosa and can be potentially used for determining the biomaterial properties of other soft biological tissues.

show abstract

“…Moreover, the removable denture sinks slightly (approximately 100 µm) for about two weeks after delivery because the soft tissue under the denture base is deformed by masticatory loading [23][24][25][26][27] . Thus, temporary fixation materials should be used for the fixation of magnetic attachments at the time of denture delivery.…”

Section: Introductionmentioning

confidence: 99%

Fixation of magnet assembly to denture base using alternative resins

et al. 2015

View full text Add to dashboard Cite

The fixation strengths between conventional/modified magnetic assemblies and denture base resins were evaluated using six alternative resins. Magnetic assemblies with three different undercut wings were prepared. Soft lining materials with added PMMA resin polymer, two photopolymerization denture relining resins, an experimental resin, and a temporary filling resin were used to fix the magnetic assemblies to the denture bases. As a control, a commercially available magnetic assembly without undercut wings and a conventional autopolymerized resin were also prepared. After surface treatments, the magnetic assemblies were fixed using fixation resins, and tensile strengths and attractive forces were measured using an autography. The experimental resin and the temporary filling resin showed retentive forces comparable to those of conventional autopolymerized resins. Although the experimental resin demonstrated satisfactory fixation strengths, it should be necessary to improve its mechanical strength. The temporary filling resin could be used as a permanent fixation material.

show abstract

Development of in vivo measuring system of the pressure distribution under the denture base of removable partial denture

Abstract: The measuring system developed here enabled us to measure the pressure distribution under the denture base of RPD. The pressure distribution varied along with the design of the occlusal rest.

Cited by 28 publications

References 22 publications

A comparison of mandibular denture base deformation with different impression techniques for implant overdentures

A comparison of mandibular denture base deformation with different impression techniques for implant overdentures

Determination of oral mucosal Poisson’s ratio and coefficient of friction fromin-vivocontact pressure measurements

Fixation of magnet assembly to denture base using alternative resins

Contact Info

Product

Resources

About