Reinforcement of Denture Base Resin

Nejatian, Touraj; Ag, Johnson; Noort, Richard van

doi:10.4028/www.scientific.net/ast.49.124

Cited by 51 publications

(45 citation statements)

References 27 publications

(28 reference statements)

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“…1,2 However, PMMA has poor mechanical properties, which often results in denture base fractures. 3 Such denture fractures may occur inside the patient's mouth usually at the midline of the denture base during mastication or outside the patient's mouth when the removable prosthesis drops suddenly.…”

Section: Introductionmentioning

confidence: 99%

Influence of incorporation of ZrO<sub>2</sub> nanoparticles on the repair strength of polymethyl methacrylate denture bases

Gad¹,

Rahoma

Al‐Thobity³

et al. 2016

IJN

128

219

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Section: Introductionmentioning

confidence: 99%

Influence of incorporation of ZrO<sub>2</sub> nanoparticles on the repair strength of polymethyl methacrylate denture bases

Gad¹,

Rahoma

Al‐Thobity³

et al. 2016

IJN

128

219

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“…56 Titanium (TiO 2 ) Several studies have investigated the effect of adding titanium dioxide (TiO 2 ) on the properties of PMMA. It was found that adding TiO 2 particles could improve the flexure strength, fracture toughness, hardness of PMMA, 26,40,57,58 as well as thermal conductivity. 33 In addition, a significant increase in impact strength 59 and a significant decrease in water sorption and solubility were found upon addition of TiO 2 to PMMA.…”

mentioning

confidence: 99%

PMMA denture base material enhancement: a review of fiber, filler, and nanofiller addition

Gad

Fouda

Al‐Harbi

et al. 2017

IJN

312

319

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This paper reviews acrylic denture base resin enhancement during the past few decades. Specific attention is given to the effect of fiber, filler, and nanofiller addition on poly(methyl methacrylate) (PMMA) properties. The review is based on scientific reviews, papers, and abstracts, as well as studies concerning the effect of additives, fibers, fillers, and reinforcement materials on PMMA, published between 1974 and 2016. Many studies have reported improvement of PMMA denture base material with the addition of fillers, fibers, nanofiller, and hybrid reinforcement. However, most of the studies were limited to in vitro investigations without bioactivity and clinical implications. Considering the findings of the review, there is no ideal denture base material, but the properties of PMMA could be improved with some modifications, especially with silanized nanoparticle addition and a hybrid reinforcement system.

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“…The soft liner provides comfort for the patient and may reduce residual ridge resorption by reducing impact force in the loadbearing areas in the supporting structures during function [4] . Polymethyl methacrylate (PMMA) resins have been the most popular denture base resins because of their physical and esthetic properties, accurate fit, stability in oral environment as well as the material's availability, reasonable cost, and ease of manipulation [5,6] .…”

Section: Introductionmentioning

confidence: 99%

Influence of Adhesive on Shear Bond Strength Between Denture Base Materials and Self-Cured Silicon Soft Liner

2016

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Background: Soft lining materials play an important role in modern prosthodontics because of their capability of restoring health of inflamed and distorted mucosa. Gradual changes of oral tissues require that complete or partial dentures be relined to improve their adaptation to the supporting tissue. This study aimed to evaluate the shear bond strength (SBS) of heat cured acrylic and injection-molded Valplast TM denture base materials to silicone self-cure soft lining materials, with and without adhesive, after storage in two different times in artificial saliva. Materials and Methods: 40 rectangular specimens were prepared from two types of self-cured silicone soft lining material, one with adhesive and the other without adhesive were applied to two types of denture base materials ( heat polymerized Polymethyl methacrylate and injection-molded nylon denture base materials). Shear bond strength of the specimens was measured, after immersion in artificial saliva for different periods (72 hours or 10 weeks), using Lloyd universal testing machine. Results: Acrylic denture base bonded to soft liner with adhesive at 72 hours of immersion in artificial saliva showed the highest shear bond strength.Comparing SBS values of the tested soft lining materials revealed significant differences between adhesively bonded and non-adhesively bonded types. Conclusions: This study concluded that the bond strength of the silicone soft lining materials with denture base materials increased with adhesive. Silicone soft lining materials are affected by artificial saliva storage. INTRODUCTIONA major objective in construction of complete dentures is to attain a denture base that conforms to the supporting tissues with a high degree of accuracy. So, the greater the accuracy of the base, the more stable is the prosthesis and the more the comfortable of the patient. As a result of the changes occurring in the oral tissues under complete or partial dentures, periodic relining of that prosthesis is needed to improve their adaptation to the supporting tissue [1] .Codex : 10/1604 dentaljournal.forgirls@yahoo.com KEYWORDS

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Reinforcement of Denture Base Resin

Cited by 51 publications

References 27 publications

Influence of incorporation of ZrO<sub>2</sub> nanoparticles on the repair strength of polymethyl methacrylate denture bases

Influence of incorporation of ZrO<sub>2</sub> nanoparticles on the repair strength of polymethyl methacrylate denture bases

PMMA denture base material enhancement: a review of fiber, filler, and nanofiller addition

Influence of Adhesive on Shear Bond Strength Between Denture Base Materials and Self-Cured Silicon Soft Liner

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