✦ LIBER ✦

Detecting margin leakage of dental composite restorations

✍ Scribed by Wu, W. ;Cobb, E. ;Dermann, K. ;Rupp, N. W.

Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 442 KB
Volume: 17
Category: Article
ISSN: 0021-9304
DOI: 10.1002/jbm.820170104

No coin nor oath required. For personal study only.

✦ Synopsis

The degree of microleakage between a restoration and the cavity wall is difficult to quantify objectively. A silver-staining method is used and compared to the radioisotope method with results that indicate a superior definition and more accurate terpretation of film or, photograph. evaluation of microleakage. In addition to the accuracy, two advantages are presented:

(1) scoring of the leakage can be refined and divided into more precise numbers. and (2) teeth can be observed directly in a microscope without resorting to the indirect in-

📜 SIMILAR VOLUMES

Thermal conductivity studies of composit

Thermal conductivity studies of composite dental restorative materials

✍ Brady, A. P. ;Lee, Henry ;Orlowski, Jan A. 📂 Article 📅 1974 🏛 John Wiley and Sons 🌐 English ⚖ 688 KB

## Abstract Thermal conductivities were determined for five commercial composite restorative materials, one composite crown and bridge cement, two cavity “bases,” and poly(methyl methacrylate). In addition, the effect on thermal conductivity of concentration and type for five resin‐reinforcing fill

Fracture properties of composite and gla

Fracture properties of composite and glass ionomer dental restorative materials

✍ Goldman, M. 📂 Article 📅 1985 🏛 John Wiley and Sons 🌐 English ⚖ 767 KB

The double-torsion technique has been used to determine critical stress intensity factor (K1,) values for a range of composites and glass ionomer cements used in restorative dentistry. From these values and determined elastic modulus ( E ) and tensile strength (cT) values, two other fracture propert

Effects of temperature on mechanical pro

Effects of temperature on mechanical properties of composite dental restorative materials

✍ Draughn, Robert A. 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 364 KB 👁 2 views

## Abstract In the oral environment, dental restorative materials are exposed to temperatures ranging from 10° to 50°C. Since the properties of many polymeric materials are sensitive to temperature of this magnitude, it is important to define the effects of service temperature on the mechanical pro

A silver staining technique for investig

A silver staining technique for investigating wear of restorative dental composites

✍ Wu, W. ;Cobb, E. N. 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 444 KB

## Abstract A silver staining technique was developed to demonstrate microdefects in dental restorative composites. Fine silver particles were preferentially introduced into the damaged region to provide optical contrast between the damaged and the undamaged regions. The amount of silver deposition

Modulated photoactivation methods—Effect

Modulated photoactivation methods—Effect on marginal and internal gap formation of restorations using different restorative composites

✍ Roberta C. B. Alonso; Gisele M. Correr; Leonardo G. Cunha; Carlos A. De Moraes S 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB

## Abstract This study evaluated the effect of modulated photoactivation methods on gap formation of restorations using different composites. __Methods:__ Sixty human third molars were selected, sectioned (two fragments), and ground to expose a flat enamel area. A cavity (5 mm long × 2 mm wide × 2

Effects of restoration and substrate on

Effects of restoration and substrate on polymerization contraction stress of dental composites

✍ L. Feng; R. Nunez; R. Carvalho; B. I. Suh 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 209 KB 👁 2 views

## Abstract The aim of this study was to treat both restoration and substrate as a combined factor (RS‐factor) to complement the popular __C__‐factor in prediction of polymerization contraction stress (PCS). A simple model consists of a uniaxial restoration with a curing composite sandwiched betwee