نتایج جستجو برای: denture base materials

تعداد نتایج: 688267  

2016
Roodabeh Koodaryan Ali Hafezeqoran

PURPOSE Polyamide polymers do not provide sufficient bond strength to auto-polymerized resins for repairing fractured denture or replacing dislodged denture teeth. Limited treatment methods have been developed to improve the bond strength between auto-polymerized reline resins and polyamide denture base materials. The objective of the present study was to evaluate the effect of surface modifica...

Journal: :Dental update 2012
Luke J Rickman Pavinee Padipatvuthikul Julian D Satterthwaite

UNLABELLED Provision of partial and complete dentures constructed from resin is commonplace and a satisfactory outcome requires the consideration of the properties of the resin, the oral tissues and prosthodontic principles. Conventional acrylic resin has been widely adopted as a popular denture base material since the 1930s. In this first of a two-part series, the benefits and shortcomings of ...

Journal: :Dental materials journal 2006
Masamichi Nishioka Yoshihisa Yamabe Kunihiro Hisatsune Hiroyuki Fujii

The purpose of this study was to investigate the influence of the surface roughness of denture base resin and metal on wettability with water and saliva. Solid specimens were produced using heat-curing denture base resin and Co-Cr alloy. After polymerizing or casting these materials, specimens with four different types of surface roughness were produced by a progressive polishing process using ...

Journal: :Journal of prosthodontics : official journal of the American College of Prosthodontists 2016
Faik Tugut Mehmet Emre Coskun Derya Ozdemir Dogan Omer Kirmali Hakan Akin

PURPOSE The bond strength of soft denture liner to a recently introduced denture base resin after thermocycling has not been compared to traditional denture base materials. The objective of this study was to investigate the effects of thermocycling on the tensile bond strength of soft denture liners to two chemically different denture base resins, polymethyl methacrylate (PMMA) and urethane dim...

2016
Karin Hermana Neppelenbroek Vanessa Migliorini Urban Denise Gusmão de Oliveira Vinícius Carvalho Porto Hercules Jorge Almilhatti Nara Hellen Campanha

BACKGROUND Detachment of denture acrylic resin artificial teeth from denture base resin is one of the most common problems presented by denture wearers. PURPOSE This study investigated the shear bond strength (SBS) and fracture type of bonding interface of two commercial acrylic teeth (Vipi Dent Plus e Biolux) to two denture base resins (Vipi Cril e Lucitone 550) after immersion in potentiall...

2015
Touraj Nejatian Farshid Sefat Tony Johnson

The fracture resistance of polymethylmethacrylate (PMMA) as the most popular denture base material is not satisfactory. Different factors can be involved in denture fracture. Among them, flexural fatigue and impact are the most common failure mechanisms of an acrylic denture base. It has been shown that there is a correlation between the static strength and fatigue life of composite resins. The...

2017
K Sanyal

Harold Vernon first introduced acrylic polymers as denture base materials in 1937. A survey showed that 33% of denture repairs were to restore debonded teeth.1 Factors that affect the bonding of acrylic resin teeth to the denture base are dewaxing procedures, residual wax on ridge laps of teeth,2 and careless application separating media like sodium alginate to the teeth, leading to contaminati...

Journal: :Journal of international oral health : JIOH 2014
Mayank Lau G S Amarnath B C Muddugangadhar M U Swetha Kopal Anshuraj Ashok Kumar Das

BACKGROUND The condition of the denture bearing tissues may be adversely affected by high stress concentration during function. Chairside Denture (Hard and Soft) reliners are used to distribute forces applied to soft tissues during function. Tensile and shear bond strength has been shown to be dependent on their chemical composition. A weak bond could harbor bacteria, promote staining and delam...

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