The cytotoxicity of a resin-based material can be evaluated on isolated human lymphocyte. Since resin-based dental materials have been used with increasing frequency in anterior and posterior teeth restorations, the uncured resin monomers are leached out from the restorations and diffuses into the dentine and ultimately hampers the odontoblastic layers of pulp as well as gingiva. It is also rea...

INTRODUCTION healthy dietary habits are considered to improve oral health and tooth quality. Caries treatment comprises tooth restoration with dental composites and sealants, almost all (> 90%) of which contain bisphenol A (BPA). Study hypotheses were: a) breakfast and oral hygiene habits are important factors in dental caries development; and b) dental caries treatment with epoxy-resins entail...

Rehabilitation of patients with anterior conoid teeth may present a challenge for the clinician, especially when trying to mimic the nature with composite resins. This clinical report exemplifies how a patient with conoid upper lateral incisors was rehabilitated with minimally invasive adhesive restorations. Following diagnostic wax-up and cosmetic mock-up, no-prep veneers and ceramic fragments...

The aim of this study was to examine Streptococcus mutans biofilm growth on both aged and non-aged restorative dental resins, which were submitted to therapeutic irradiation. Sixty-four disks of an esthetic restorative material (Filtek Supreme) were divided into 2 groups: aged group (AG) and a non-aged group (NAG). Each group was subdivided into 4 subgroups: non-irradiated and irradiated with 1...

This descriptive study was carried out at dental out-patient department of Liaquat medical University Hospital Hyderabad from January 2013 to December 2013. Thirty-five patients wearing auto polymerized (self-cured) fixed partial dentures provided by unqualified and qualified dental practitioners were assessed. Condition of oral health was evaluated on the basis of proper history and clinical e...

STATEMENT OF THE PROBLEM Optical properties of the composite resins, concerning their translucency and thickness, are affected by discolored tooth structure or inherent darkness of the oral cavity. PURPOSE This study aimed to compare the translucency parameter (TP) of five different composite resins in different thicknesses and to evaluate their masking ability in black backgrounds. MATERIA...

T o simulate the bluish-white fluorescence of natural teeth under ultraviolet light,‘-’ dental manufacturers use fluorophors of proprietary composition. Uranium oxides were often used in the past in combination with cerium to impart a realistic fluorescence to dental porcelain.* Uranium is no longer used as a result of increased awareness of possible radiation effects on oral tissues.‘.” Fluore...

One of the most widely used materials for fabrication prosthetic dental parts is acrylic resin. Its reasonable mechanical and physical properties make it a popular material wide range applications. Recently, many attempts have been made to improve biological this material, such as by adding fibres, nanoparticles, nanotubes. The current study aimed evaluate effects an antimicrobial agent, Ag-Zn ...

Waxes used in dentistry are combinations of two or more natural waxes plus small amounts of additives, such as oils, natural resins, synthetic waxes, and coloring agents. The ultimate goal of the combination of waxes and additives is to produce dental waxes that possess a set of given physical properties over a specified range of temperature. Although considerable effort has been expended to de...

The restoration o[ primary anterior teeth presents a problem to the clinician. This paper describes a technique for the restoration of carious or fractured primary anterior teeth, utilizing a transparent, removable, pedodontic crown form as a matrix and an acid-etched, composite resin as a restorative material.