PMID: 9545918Feb 1, 1997Paper

Effect of cavity design on microleakage of resin-modified glass ionomer restorations

American Journal of Dentistry
S UnoU B Fritz

Abstract

To investigate cavity sealing with resin-modified glass ionomer cements (RGIC) and a compomer relative to the design of Class V cavities crossing the CEJ. Three types of cavities, 6 x 3 x 1.5 mm, were prepared buccally in human molars. Type 1: semicircular with 90 degrees cavo-surface angle; Type 2: as type 1, but with bevelled enamel margin; Type 3: V-shaped. The cavities were restored with the compomer Dyract (DYR), with one of the RGIC, Fuji II LC (FUJ), Photac-Fil (PHF) or Vitremer (VIT), or with the bonded resin composite system Gluma-CPS/Pekafill (GLP) as a reference. Six restorations in each group were finished immediately after curing and thermocycled 1500 between 5 degrees C and 55 degrees C. For Type 1 restorations, another set of six samples was stored in 23 degrees C water for 24 hours. After thermocycling and water storage, respectively, the specimens were immersed in 0.1% fuchsin. Two sections were made through the restoration to register microleakage on the four surfaces produced as depth of dye penetration coronally and apically by scores 0 (no) to 4 (beyond deepest part of cavity). The results were statistically analyzed by cavity type, site, and restorative material using Kruskal-Wallis ANOVA and Wilcoxon's tw...Continue Reading

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Dental Materials : Official Publication of the Academy of Dental Materials
Steffen MickenautschAvijit Banerjee
Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Fu-Mei Huang, Yu-Chao Chang
American Journal of Dentistry
S M Pachuta, J C Meiers
© 2022 Meta ULC. All rights reserved