Force transmission and retentive capabilities utilizing labial and palatal I‐bar partial dentures

Highton, R.; Caputo, Angelo A.; Matyas, J.

doi:10.1111/j.1365-2842.1987.tb00744.x

Cited by 10 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, in dentistry, because of its inherent flexibility, it has been used primarily for flexible mucosa born partial dentures. Such polymers do not have sufficient strength to be used as occlusal rest seats and they would not maintain vertical dimension when used in direct occlusal forces, but the studies were controversial in this this regard (6)(7)(8)(9)(10)(11)(12)(13)(14).…”

Section: Discussionmentioning

confidence: 99%

“…For this purpose, researchers have been investigating alternative materials in order to overcome the unaesthetic appearance of alloy clasps especially when they are placed on the anterior teeth. The methods to overcome this aesthetic dilemma have included, covering clasps with tooth-colored resin (3,5), the use of lingually positioned clasps (6,7), and the engagement of mesial rather than distal undercuts (8).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Retention and Deformation of Cobalt-Chromium and High-Impact Polyamide Clasps

Kümbüloğlu¹,

Özkan²,

Arda³

et al. 2018

meandros

View full text Add to dashboard Cite

Objective: The use of metal clasps especially in anterior region may cause aesthetic problems. Polyamide resin has been suggested as an alternative aesthetic denture clasp material. This study compared the retentive force and deformation of cobaltchromium and polyamide clasps after 36 months of simulated clinical use. Materials and Methods:The retentive force for clasp removal was measured in distilled water using a custom-made apparatus with intervals corresponding to 0, 6, 12, 18, 24, 30 and 36 months of simulated clinical use. The distance (mm) between the retentive and reciprocal clasp tips was measured using a microscope before and after the insertion-removal procedures. Results: Significant difference was observed in distance between clasp tips for metal clasps between baseline and 36 months for molars and premolars (p<0.05). Likewise, retentive force showed significant difference (p<0.05) for cobalt-chromium between baseline and 36 months, while polyamide clasps did not show significant difference (p>0.05). Conclusion: Polyamide clasps could be alternative to metal clasps particularly on premolars with reliable retention and deformation.Amaç: Metal kroşelerin kullanımları özellikle anterior bölgede ise estetik problemlere yol açabilir. Poliamid rezinin yeni bir tipi alternatif estetik bir dental kroşe materyali olarak kullanılmaya başlamıştır. Bu çalışmanın amacı kobalt-krom kroşeler ile poliamid kroşelerin 36 aylık kullanım periyodu sonunda retantif kuvvetlerinin ve deformasyonlarının karşılaştırılmasıdır. Gereç ve Yöntemler: Kroşelelerin retantif kuvvetleri distile su içerisinde, özel tasarlanmış, yerleştirme-çıkarma mekanizmasıyla çalışan bir test aparatı yardımıyla ölçüldü. Klinik uygulamanın simülasyonu elde edilip bu aparat yardımıyla 0, 6, 12, 18, 24, 30 ve 36. aylarda ölçüm yapıldı. Yerleştirip çıkartma testinden önce ve sonra bir mikroskop yardımıyla kroşenin retantif ve resiprokal kolları arasındaki mesafe mm cinsinden ölçüldü. Bulgular: Otuz altı ayın sonunda premolar ve molarlarda metal kroşe tiplerinin kendi aralarındaki karşılaştırılmalarında resiprokal ve retantif kollar arasındaki mesafede

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Retention and Deformation of Cobalt-Chromium and High-Impact Polyamide Clasps

Kümbüloğlu¹,

Özkan²,

Arda³

et al. 2018

meandros

View full text Add to dashboard Cite

show abstract

“…The most common alloys used for such clasps are cobalt-chromium alloys and gold alloys, but they can be unsightly 2) . Various methods, such as clasps painted with tooth-colored resin 3,4) , lingually or gingivally positioned clasps 5,6) , and mesial rather than distal undercuts 7) , have been employed in order to solve these problems. While these methods are effective to some extent, it has not yet been possible to develop esthetically ideal dental clasps.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the frequency and temperature dependence of the dynamic mechanical properties of acetal resins

et al. 2018

View full text Add to dashboard Cite

The purpose of this study was to evaluate and compare the dynamic mechanical properties of two acetal resins (different colored samples of the same resin), an autopolymerized reline resin, and a heat-polymerized denture base resin. Measurements were obtained in two conditions, the frequency-and temperature-dependent conditions, using a dynamic viscoelastometer. The acetal resins exhibited lower loss tangent values than the autopolymerized reline resin and heat-polymerized denture base resin. With respect to temperature dependence, all of the materials displayed stable viscoelastic properties in the temperature range found in the oral environment. The acetal resin had both a glass transition temperature and a melting point, whereas the autopolymerized reline resin and heat-polymerized denture base resin had only glass transition temperatures. The results of this study suggest that acetal resin displays elastic properties when compared with the other 2 materials.

show abstract

“…The main purpose of RPDs or any dental prosthesis is to maintain oral function by restoring missing teeth and surrounding tissues while maintaining the patient’s appearance, comfort, and health [ 3 ]. This point enhances the demand for a material that is biocompatible, aesthetic and has adequate strength when used for RPD fabrication [ 4 , 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Retentive Forces and Deformation of Fitting Surface in RPD Clasp Made of Polyether-Ether-Ketone (PEEK)

et al. 2023

View full text Add to dashboard Cite

Background: Polyetheretherketone (PEEK) has provided the option to fabricate RPDs with aesthetics unlike metal RPDs, but little attention has been paid to its suitability, especially towards the retentive forces and deformation of the clasp. This study aimed to examine the retentive forces and the fitting surface (inner surface) deformation of clasps made from PEEK and compare it with cobalt–chromium (Co-Cr) clasp. Methods: Forty-two circumferential clasps (14 Co-Cr and 28 PEEK) were fabricated and divided into two groups with clasp undercuts (0.25 mm and 0.5 mm) with thicknesses of 1 mm and 1.5 mm. Each was examined for retentive forces after cycle test on its abutment for 360 cycles. Initial and final retentive forces were recorded. The fitting surface deformation was determined using 3-Matic research analysis software. Results: The results revealed that highest mean initial retentive force was of Co-Cr clasps with 0.50 mm undercut 22.26 N (±10.15 N), and the lowest was the 1 mm PEEK clasps with 0.25 mm undercut 3.35 N (±0.72 N) and highest mean final retentive force was the Co-Cr clasps with 0.50 mm undercut 21.40 N (±9.66 N), and the lowest was the 1 mm PEEK clasps with 0.25 mm undercut 2.71 N (±0.47 N). PEEK clasps had a lower retentive force than Co-Cr clasps with 0.50 undercut. PEEK clasps (1.5 mm) at 0.25 mm undercut had the least deformation (35.3 µm). PEEK showed significantly less deformation (p ≤ 0.014) than Co-Cr. Conclusion: The deformation of PEEK clasps fitting surface was lower than Co-Cr clasps and retentive forces were close to the Co-Cr clasps, suggesting the use of PEEK as an aesthetic clasp option for RPD framework.

show abstract

Force transmission and retentive capabilities utilizing labial and palatal I‐bar partial dentures

Cited by 10 publications

References 4 publications

Retention and Deformation of Cobalt-Chromium and High-Impact Polyamide Clasps

Retention and Deformation of Cobalt-Chromium and High-Impact Polyamide Clasps

Evaluation of the frequency and temperature dependence of the dynamic mechanical properties of acetal resins

Retentive Forces and Deformation of Fitting Surface in RPD Clasp Made of Polyether-Ether-Ketone (PEEK)

Contact Info

Product

Resources

About