15-year evaluation of Class II amalgam restorations.

In a clinical trial, 1544 Class II amalgam restorations were inserted. In this study 1213 restorations were evaluated after 15 years and the reasons for replacement were registered. Attention was also paid to patient drop-out and patients' variables such as gender, filling degree, type of tooth (premolar vs molar), type of restoration (MO or DO vs MOD), jaw (upper vs lower) and the patients' operator.

Two-year results with box-only resin composite restorations.

One of the restorative alternatives in the treatment of proximal carious lesions is the box-only approach. This paper describes baseline and two-year results with 68 box-only resin composite restorations in a clinical study. The restorations were made using a glass ionomer cement as a dentin replacement and a bevelled outline.

Radiographic assessments of Class II resin composite inlays.

Radiographic evaluations of indirect Class II resin composite inlays, shortly following their placement are presented. One hundred and eighty restorations of 'standard' conservative size were recorded using a beam-aiming device. Four radiographic characteristics were assessed of which the most important were: cervical marginal adaptation, voids in the material, and radiolucencies adjacent to the restoration.

Radiopacity of posterior composite resins, composite resin luting cements, and glass ionomer lining cements.

The radiopacities of seven posterior composite resins, seven composite resin luting cements, and six glass ionomer lining cements were studied. The purpose was to obtain an indication of radiopacity values of different brands within each of these three groups of materials and to show differences in radiopacities of composite resin inlay materials and their accompanying luting cements. On radiographs, the optical densities of standardized samples were determined and radiopacity values of the materials were expressed in millimeter equivalent aluminum.

Evaluation of occlusal marginal adaptation of Class II resin-composite restorations.

This paper describes the results of an evaluation of the occlusal marginal adaptation of Class II restorations in a clinical trial. The margins of 183 resin composite and 61 amalgam restorations, made by three dentists, were assessed. An indirect evaluative method has been applied, that uses a shadowing photographic technique to produce images of impressions.

Comparison of two methods for evaluating the occlusal marginal adaptation of posterior restorations.

Two methods of evaluating the occlusal marginal adaptation of posterior restorations are compared: a direct and an indirect method. The direct method uses modified Ryge criteria and assessments are performed with mirror, probe and operating lamp. With the indirect method assessments are conducted using photographs of impressions of the restorations.

Prevalence of postoperative sensitivity with indirect Class II resin composite inlays.

In this clinical trial, the prevalence of postoperative sensitivity is studied in a comparison of standard size indirect class II resin composite inlays with class II amalgam restorations. Fifteen percent of the 240 restored teeth (resin composite and amalgam restorations) showed some form of sensitivity, the majority of them of a passing nature. No difference was found between amalgam and composite restorations.

Long-term evaluation and rerestoration of amalgam restorations.

In this study, 1544 class-II amalgam restorations were made and evaluated for 10 yr and the reasons for rerestoration were registered. Two categories of failure could be established: failures due to poor restorative technique (true failures) and those not due to poor restorative technique (false failures). After 10 yr, 1415 restorations were evaluated.

Evaluation of treatment times for Class II resin composite inlays.

Time registrations for indirect class II resin composite inlays are given. They are compared with treatment times for direct resin composite restorations.

Treatment times of amalgam restorations.

The aim of this study was to present information about treatment times for amalgam restorations and the factors influencing them. The study was carried out as part of a clinical trial. Following a written treatment protocol, 1044 class II restorations with two surfaces and 1433 restorations with three surfaces were made by seven operators.

Radiographic assessments of Class II resin composite restorations in a clinical study: baseline results.

In this article, the baseline results of radiographic evaluation of both Class II resin composite and Class II amalgam restorations are discussed. Attention is paid to the quality of the cervical margin adaptation, the occurrence of radiolucencies adjacent to the restoration, and the homogeneity of the resin composite.

The prevalence of postoperative sensitivity in teeth restored with Class II composite resin restorations.

Postoperative sensitivity is one of the problems a dentist can encounter after restoration of a tooth with composite resin. To reduce the possible causes of these complaints, the operative procedure has been adapted to some suggestions of other investigators. In this study the postoperative sensitivity was evaluated in a comparison between composite resin and amalgam: 244 (standard) class II restorations were made by three dentists in fifty-six patients.

Evaluation of treatment times for Class II composite resin restorations.

This article describes the results of an investigation into the treatment time required for the placement of Class II composite resin restorations. For purposes of this study, three dentists made 183 standard Class II composite resin restorations, both two-surface and three-surface, according to a detailed treatment protocol. Time registrations were carried out during the treatments, and each treatment was divided into five sections, each representing one stage in the restorative process.

A clinical study on direct and indirect Class II posterior composite resin restorations: design of the investigation.

The combination of composite resins with adhesive intermediate agents and techniques is still questionable with respect to application to posterior regions of the dentition. To add data to the information already available about the clinical behavior and longevity of class II composite resin restorations, a longitudinal study has been started; its design is discussed in this paper.