During the past decade, zirconia-based ceramics have been successfully introduced into the clinic to fabricate fixed dental prostheses (FDPs), along with a dental computer-aided/computer-aided manufacturing (CAD/CAM) system. In this article (1) development of dental ceramics, (2) the current status of dental CAD/CAM systems, (3) CAD/CAM and zirconia restoration, (4) bond between zirconia and ve...

OBJECTIVE To examine the ultimate accuracy of bracket placement in labial vs lingual systems and in direct vs indirect bonding techniques. MATERIALS AND METHODS Forty pretreatment dental casts of 20 subjects were selected. For each dental cast, four types of bracket placement were compared: labial direct (LbD), labial indirect (LbI), lingual direct (LgD), and lingual indirect (LgI). Direct bo...

Student performance was compared on written and psychomotor skill tests of freshman dental students receiving conventional lectures versus the same lectures containing interactive components using TurningPoint, a wireless audience response system (ARS). The research design was a controlled crossover study with seventy-seven freshman dental students conducted in a preclinical operative dentistry...

Orthodontists strive for accurate bracket positioning as it helps in achieving an ideal occlusion more easily. For direct bonding, various hand-held dental instruments are used. Instruments such as, the Boone and Dougherty gauges, MBT A-KAM other modifications, used of brackets. Sometimes can easily slip when instrument is removed. So, position adjustments difficult with instrument. Indirect bo...

Information dentaire n° 26 du 27 juin 2001 When faced with dental root fractures, the practitioner is often at a disadvantage, particularly in emergency situations. Treatments which have been proposed, particularly symptomatic in nature, have irregular long-term results. The spectacular progress of bonding materials has radically changed treatment perspectives. Among these bonding agents, the 4...

INTRODUCTION Our objective was to determine the effects of intracoronal bleaching on the shear bond strength and failure side location of metallic brackets at 2 times (bleaching immediately before bonding and 30 days before bonding). METHODS Sixty freshly extracted mandibular incisors were randomly divided into 3 groups; each group contained 20 teeth. After finishing canal preparation and roo...

background: failures such as marginal discoloration and composite chipping are still the problems of tooth-colored restorations on the substrate of enamel and porcelain, which some of these problems are consequently as a result of failures in the bonding layer. using fi lled resin has been recently introduced to increase the bond strength of this layer. the aim of this study was to compare the ...

Many conventional types of luting cement are available for the dental clinicians to choose and restore luting of ceramic crowns. But not all the available luting cements are ideal for all situations. All ceramic restorations do benefit from resin cements bonding to the tooth. Hence it necessitates comparing the bonding ability of different luting cements to ceramic and dentin. The main objectiv...

Ceramics have been widely used for esthetic and functional improvements. The resin cement is the material of choice for bonding ceramics to dental substrate and it can also dictate the final esthetic appearance and strength of the restoration. The correct use of the wide spectrum of resin luting agents available depends on the dental tooth substrate. This article presents three-year clinical re...