Evaluation and assessment of the wettabilty and water contact angle of modified poly methyl methacrylate denture base materials against PEEK in cast partial denture framework: an in vitro study

Abstract

Introduction The prevalence of adults with partially dental arches is expected to be more than imagined and patients requiring replacement of missing teeth are slowly increasing in number too. Removable partial dentures areknown to provide for substantial replacement for the missing teeth with also added advantages when comparedto fixed or implant prosthesis, mainly in elderly patients. Denture base material performance and durability aregreatly influenced by wettability and water contact angle. In the case of dentures; adequate moisture distributionis necessary to ensure excellent wettability which has an influence on comfort and oral health. The purpose ofconducting this study was to find out whether the advancements made using PEEK (Polyether ether ketone) wouldprove to be more beneficial than the current upgrades in the current material spectrum. Materials and methods This study was performed under in vitro conditions. All the fabrication and processing wasdone only by one operator. The materials used were divided into three groups each comprising 20 samples. Group Awas modified polymethylmethacrylate (Bredent Polyan), Group B was polyoxymethylene acetal resin (Biodentaplast)and Group C was PEEK. An Ossila Goniometer was used to measure the contact angle. The three types of liquids usedfor the testing included distilled water, natural saliva and mouth wetting solution (Wet Mouth Liquid, ICPA India).Human saliva was collected from an individual with no medical conditions and normal salivary secretion.Results The data was analyzed using One-way ANOVA test and a pairwise comparison using the Post Hoc Tukey’sHonest Significant Difference.