Achieving a good bond in acrylic resin denture teeth

Radford, David R.; Juszczyk, Andrzej S; Clark, Robert K.

doi:10.1038/bdjteam.2014.61

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…The compressive bond strength and load reflected by Group 2 were smaller than those exhibited by Group 1, wherein 2-mm grooves were incorporated on the ridge-lap surfaces of the teeth with a round bur. Our results disagreed with those reported in recent studies, which have shown an improvement in strength with the incorporation of grooves owing to improvements in physical retention [28]. This was followed by Group 4, wherein only the teeth were treated with 50 µm aluminum oxide particles based on a sandblasting machine [29,30].…”

Section: Discussioncontrasting

confidence: 99%

Comparative Evaluation of Compressive Bond Strength between Acrylic Denture Base and Teeth with Various Combinations of Mechanical and Chemical Treatments

et al. 2021

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Debonding and detachment of artificial teeth from the denture base is frequently encountered in prosthodontic practice. This study aims to assess the effect of modifications in the ridge-lap surface of denture teeth with various combinations of mechanical and chemical surface treatments with hydrofluoric acid on bond strength with the acrylic denture base resin and to identify the failure modes (adhesive, cohesive, or mixed). Seventy acrylic resin teeth samples were randomly divided into seven groups (n = 10): a control group (unmodified) and six treatment groups, in which various combinations of mechanical and chemical surface treatments were performed. Then, these teeth were attached to a heat-cured denture base resin block at 45° angulation. The acrylized test samples were thermocycled, and the compressive bond strength was evaluated using a universal mechanical testing machine. The results suggest that roughening with diamond burs yields the highest bond strength, whereas etching/grooving and air abrasion result in the lowest bond strength. Acid etching complemented air abrasion to improve bond strength, while negative effects were noted with acid etching in other groups. Furthermore, roughening at the neck portion of the acrylic teeth can be used by the manufacturing companies as a standard to provide higher bond strength while maintaining the esthetics of the anterior teeth.

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Section: Discussioncontrasting

confidence: 99%

Comparative Evaluation of Compressive Bond Strength between Acrylic Denture Base and Teeth with Various Combinations of Mechanical and Chemical Treatments

et al. 2021

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Influence different amount of cellulose on the mechanical strength of dental acrylic resin

Taczała

Sawicki

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The mechanical strength of PMMA is not sufficient when a patient applies high mastication force to the denture base plate. Many fillers to reinforce PMMA was used. However, cellulose incorporated into dental acrylic resin has never been reported. In this work, two types of modified cellulose were incorporated in the heat-cured acrylic resin, and the flexural strength was investigated. The conclusion is that the addition of properly modified cellulose could have good influence on the flexural strength of dental acrylic resin. The addition of cellulose modified by 3-Methacryloxypropylmethyldimethoxysilane has increased average flexural strength and the standard deviation was satisfactory. However, Triethoxy(octyl)silane may not appropriate to achieve the intended purpose, or the modification of the cellulose by this silane itself must still be subjected to further testing. The ability to form new chemical chains between the cellulose and acrylic surfaces had a greater impact on the strength of acrylic than facilitated even distribution of cellulose.

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Achieving a good bond in acrylic resin denture teeth

Cited by 2 publications

References 21 publications

Comparative Evaluation of Compressive Bond Strength between Acrylic Denture Base and Teeth with Various Combinations of Mechanical and Chemical Treatments

Comparative Evaluation of Compressive Bond Strength between Acrylic Denture Base and Teeth with Various Combinations of Mechanical and Chemical Treatments

Influence different amount of cellulose on the mechanical strength of dental acrylic resin

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