Mandibular Residual Ridge Shape and the Masticatory Ability in Complete Denture Wearers

Koshino, Hisashi; Hirai, Toshihiro; Yokoyama, Yuichi; Tanaka, Maki; Toyoshita, Yoshifumi; Iwasaki, Kazuo; Sudô, Emiko

doi:10.2186/jjps.52.488

Cited by 37 publications

(33 citation statements)

References 19 publications

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“…This finding may be attributed to the discrepancies in visible colour tolerance at different regions in the CIELAB colour space. When investigating the colour difference between before and after, ∆E00 rather than ∆Eab is recommended by CIE [6]. The formula is an extension of the CIELAB colour-difference formula with corrections for variation in colour-difference perception dependent on lightness, chroma, hue and chroma-hue interaction.…”

Section: Discussionmentioning

confidence: 99%

“…For the chewed gum, ∆E is calculated using the CIELAB (or CIE 1976 Lab) colour-difference formula, which has a significant positive correlation with maximum closing velocity and a significant negative correlation with closing angle [5]. Based on CIE Technical Report 142-2001, the CIELAB formula has recently been developed into the CIEDE2000 formula, where ∆Eab has become ∆E00 [6]. Thus ∆E has been recently focused in the field of the masticatory evaluation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Applicability of the CIELAB and CIEDE2000 Formulae for Detection of Colour Changes in Colour-Changeable Chewing Gum for Evaluating Masticatory Function

Yeerken

Otomaru

Said

et al. 2017

JCDR

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Applicability of the CIELAB and CIEDE2000 Formulae for Detection of Colour Changes in Colour-Changeable Chewing Gum for Evaluating Masticatory Function

Yeerken

Otomaru

Said

et al. 2017

JCDR

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“…Complete edentulism has high impact on peoples' lives, and treating this condition with complete dentures may result in expressive functional and aesthetic rehabilitation. Advanced alveolar bone resorption, however, frequently impairs the stability of the denture, particularly in the mandible, preventing the complete success of the treatment . Associating dental implants to this therapeutic approach can improve the treatment success rate significantly by increasing denture stability, a result that can only be achieved through a mechanism that reliably connects prosthesis and implants: the attachment system.…”

Section: Introductionmentioning

confidence: 99%

“…Advanced alveolar bone resorption, however, frequently impairs the stability of the denture, particularly in the mandible, preventing the complete success of the treatment. 1,2 Associating dental implants to this therapeutic approach can improve the treatment success rate significantly by increasing denture stability, [3][4][5][6][7] a result that can only be achieved through a mechanism that reliably connects prosthesis and implants:…”

Section: Introductionmentioning

confidence: 99%

Patient satisfaction versus retention of implant overdentures with two attachment systems: A randomized trial

Albuquerque

Fromentin

Lassauzay

et al. 2018

Clin Implant Dent Rel Res

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Background Clinical success with mandibular implant overdentures is highly dependent on a reliable attachment system connecting prosthesis and implants. Purpose To compare the levels of retention and patient‐based outcomes on implant overdentures retained/supported by cylindrical (LA) and ball (RA) attachment systems overtime and investigate their relationship. Materials and Methods Attachment retention (Newtons), and patient satisfaction with the treatment, prosthesis stability, and ability to chew (VAS, 100 mm) were assessed in a crossover trial for both attachment systems at baseline, 1 week, 3, 6, and 12 months and compared to preintervention values. Patients' preference was also recorded. Results Mean retention of worn attachments and patient satisfaction with denture retention assessed in the preintervention phase were 3.2 N (SD 4.9) and 23.5 mm (IQR 6.5‐65.5), respectively. Overall mean retention along the study was higher for RA than LA (difference of 5.0 N, 95%CI: 2.5‐7.6; P = 0.0005), declining significantly overtime (P < 0.0001), more steeply for the cylindrical attachment. Differences in VAS ratings between attachments were nonsignificant in the crossover phase (P > 0.05), but general satisfaction, satisfaction with retention, and comfort were significantly higher when compared with preintervention scores (P < 0.05). Ratings of retention decreased significantly overtime for both systems and earlier for LA than RA. Satisfaction was lower when retention was either too low or too high, although there was large variation in this association. At the end of the study, all participants chose to remain with the attachment system that they had received last. Conclusions Attachment selection should be based on patients' individual characteristics and expectations as satisfaction with the attachment retention and denture stability vary largely among patients.

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“…On this note, the comparatively flat area (CFA) of ridge may be adequate to achieve lever balance in the stressbearing area. While it is important to examine these ridge areas objectively and accurately, existing methods that examine residual ridge shape [2][3][4] have not been able to analyze this CFA. Against this background, we had previously designed a system to analyze the CFA -including ridge crest -on a reconstructed image of the ridge contour by using a non-contact shape measuring device and computer software 5,6) .…”

Section: Introductionmentioning

confidence: 99%

A Three-dimensional Analysis Method for Edentulous Mandibular Ridge Shape

Murakami¹,

Kawahata²,

Nagaoka³

2007

Dent. Mater. J.

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The aim of this study was to develop a three-dimensional method to analyze edentulous ridge shapes.A laser projection method was used to record the shape of edentulous plaster models. Contour of residual ridge on the reconstructed image was then subdivided into small triangles, and a 'normal line' representing the center of gravity of each triangle was determined buccolingually and anteroposteriorly. Angle between the normal line on the residual ridge and the tentative occlusal plane was calculated for each triangle. These angles were then used to analyze the ridge shape.This method was used to analyze the ridges of 20 edentulous patients with excessive bone resorption. The results suggested that this method was useful for analyzing edentulous ridges regardless of ridge shape and degree of resorption.

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Mandibular Residual Ridge Shape and the Masticatory Ability in Complete Denture Wearers

Cited by 37 publications

References 19 publications

Applicability of the CIELAB and CIEDE2000 Formulae for Detection of Colour Changes in Colour-Changeable Chewing Gum for Evaluating Masticatory Function

Applicability of the CIELAB and CIEDE2000 Formulae for Detection of Colour Changes in Colour-Changeable Chewing Gum for Evaluating Masticatory Function

Patient satisfaction versus retention of implant overdentures with two attachment systems: A randomized trial

A Three-dimensional Analysis Method for Edentulous Mandibular Ridge Shape

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