Dental materials have to meet high standards regarding mechanical strength and handling properties. There is however only a limited amount of research that has been devoted to natural formation of hydroxyapatite (HA) in contact with the materials. The objective of the current investigation was to study the surface reactions occurring in human salvia on a novel dental cement. Ceramir Crown & Bri...

Since luting cement is used for fixing cast restorations to their abutments, the cement surface at the junction between cast and tooth is exposed to oral environment. The conventional cement so far used does not adhere to the tooth and is slightly soluble into saliva and gingival fluid1,2). Consequently, the microleakage and subsequent recurrent caries seem to develop at this junction. Recently...

This report describes the use of laboratory-fabricated crown intaglio replicas for extraorally prepared cementation of fixed restorations to implants. This technique minimizes excess cement and may therefore reduce the risk of cement-related marginal peri-implant bone loss. It is unclear whether the remaining thin layer of luting agent provides sufficient retention if low-adhesive zinc oxide (Z...

STATEMENT OF PROBLEM For a luting agent to allow complete seating of prosthetic restorations, it must obtain an appropriate flow rate maintaining a minimum film thickness. The performance of recently introduced luting agents in this regard has not been evaluated. PURPOSE To measure and compare the film thickness and flow properties of seven resin-containing luting cements at different tempera...

laboratory trials have shown a potential detrimental effect upon the application of load, clinical long-term follow-up studies do not support such assertions, reporting comparable outcomes instead. Furthermore, arguments of increased rates of screw loosening and fractures in screw-retained abutments should be classified according to their publication date and the type of components used at that...

The objective of this study was to investigate the effect of various luting cement systems on bond strength of fibre-reinforced posts to root canal dentine. 40 extracted single rooted sound premolar teeth were root filled, decoronated and randomly divided into four groups. Fibre posts, AesthetiPlusTM (Bisco,Inc. Schaumburg, IL, USA) were cemented using four luting cements: Group A (control): El...

A large number of luting agents (dental cements) are available and proper selection can be a daunting task is usually based on practitioner’s reliance, their experience preference. The literature continues to repeat that ‘‘No product satisfies the requirements for an ideal agent comprehensive patient care requires several materials…. best choice not always easy’’. Ceramic restoration in form in...

phosphate, polycarboxylate, zinc oxide-eugenol and glass-ionomer products and the characteristics of these cements have been examined by several investigators2-5). In our previous investigation6), a decrease in compressive and diametral tensile strength was observed following 12 months immersion in distilled water with zinc phosphate, polycarboxylate and glass ionomer cements for luting, contai...

OBJECTIVE This in vitro study evaluated the influence of luting agents on ultrasonic vibration time for intraradicular cast post removal. MATERIAL AND METHODS After endodontic treatment, 30 roots of extracted human canines were embedded in resin cylinders. The post-holes were prepared at 10 mm depth and their impressions were taken using autopolymerizing acrylic resin. After casting procedure...