A prospective clinical study of a multipurpose adhesive used for the cementation of resin-bonded bridges.

A clinical trial was conducted to assess comparatively the clinical performance of anterior resin-bonded bridges (RBBs) cemented with Panavia 21 Opaque (PO) or Scotchbond Multi-Purpose Plus (SBMP) used in conjunction with Scotchbond Resin Cement (SRC). Thirty-three bridges were cemented with PO and 31 bridges with SRC. The bridges were assessed six months after placement via a postal questionnaire.

Clinical performance of Class II restorations in which resin composite is laminated over resin-modified glass-ionomer.

This study evaluated the one-year functioning of resin-composite/resin-modified glass-ionomer open-laminate restorations when used for restoring Class II cavities. It also investigated the effect of the thickness of the resin composite layer on the performance of such restorations. The test restorations were made of Vitremer glass ionomer, Scotchbond Multipurpose Plus and Z100 resin composite, and the control restorations were made of Z100 with Scotchbond Multipurpose Plus.

Effect of adhesive resin cement on design of partial veneer crowns.

Statement Of Problem: Procedures involved in the tooth preparation, impression, and casting of partial veneer three-quarter crowns are considered to be complex.

Purpose: This study assessed whether a simplified partial veneer crown design, when cemented with a 4-META adhesive resin, had a comparable resistance to displacement forces compared with a conventionally prepared partial veneer crown cemented with a traditional luting agent.

Material And Methods: Conventional partial veneer crowns were prepared on 20 natural premolars, and 20 other premolars received modified partial veneer crown tooth preparations without proximal grooves.

Removing saliva contamination from porcelain veneers before bonding.

Statement Of Problem: Contamination of the fitting surfaces of porcelain veneers with saliva at the try-in stage is almost inevitable.

Purpose: This study used bond strength tests to examine the effect of salivary contamination on Scotchbond adhesive/composite luting material bond to porcelain and evaluated the effectiveness of various procedures used (acetone, phosphoric acid) to overcome such contamination.

Material And Methods: Bond strength test specimens were prepared with porcelain adherends.

Fluoride release from tooth-colored restorative materials: a 12-month report.

Background: This study measured the amount of fluoride released from three light-activated glass polyalkenoate (ionomer) cements, a conventional glass polyalkenoate, a compomer and a fluoridated composite over a period of 12 months.

Methods: Five discs (7 x 2 mm) of each material were sequentially immersed in 4 mL portions of deionized water at 37 degrees C and before each measurement, the test specimen was rinsed with 1 mL of deionised water. An Orion Model 901 microprocessor digital Ionalyzer was used for the measurements and the data obtained were converted into microgram/cm2.