Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Preheating of dental composites improves their flowability, facilitating successful restorations. However, the flowability of dental composites is affected not only by temperature but also by the deformation conditions. In the present work, the effects of various deformation conditions upon the viscoelastic properties of a preheated dental composite were studied. The rheological properties of Z350 dental composites at 25, 45, and 60°C were measured by a strain-controlled rheometer. When a low strain (0.03%) was applied, the preheated composite exhibited greater shear storage modulus (G') and complex viscosity (η*) than a room-temperature composite. Oppositely, when a high strain (50%) was applied, G' and η* of a preheated composite were lower than those of a room-temperature composite. Preheating of dental composites might be helpful in clinical practice both to increase the slumping resistance when minimal manipulation is used (e.g., during the build-up of a missing cusp tip) and to increase flowability when manipulation entailing high shear strain is applied (e.g., when uncured composite resin is spread on a dentin surface).
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.4012/dmj.2015-042 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Interplay Between Lifestyle and Oral/Faecal Microbial Profiles Among Periodontal Disease Patients: A Cross-Sectional Study.
J Clin Periodontol
September 2025
Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirao Preto School of Dentistry, University of Sao Paulo (USP), Ribeirao Preto, Brazil.
Aim: To characterise periodontal and faecal microbiomes of individuals with periodontal health (PH) and diseases, and evaluate associations with periodontal, sociodemographic, anthropometric, nutritional and lifestyle factors.
Materials And Methods: Dental biofilm and faecal samples from individuals (n = 24/group) with PH, gingivitis (GG) and periodontitis (PE) were sequenced (16S rRNA). Anthropometric data and questionnaires on demographics, lifestyle, diet and intestinal habits were collected.
Evaluation of a nucleic acid preservation protocol for microbiome studies involving samples from the oral cavity.
J Microbiol Methods
September 2025
Dynamics of Respiratory Infections Group, Helmholtz Centre for Infection Research-HZI Braunschweig, Braunschweig, Germany; Department of Respiratory Medicine and Infectious Diseases, Hannover Medical School, German Center for Lung Research (DZL), BREATH, Hannover, Germany.
Purpose: The accuracy of oral microbiome research depends significantly on specimen sampling protocols, as well as their storage and preservation. Traditional methods, such as freezing, may not only involve logistical hurdles but can also impact the quality of microbial data, leading to difficulties in the comparability between different studies. This study evaluates the effectiveness of the room temperature nucleic acid preservation protocol using DNA/RNA Shield buffer as compared to standard freezing in preserving oral microbial communities over the course of 7 days.
View Article and Find Full Text PDFSynergistic Effect of Enzymatic Deproteinization and Surface Pre-Reacted Glass Ionomer "SPRG" Fillers in self-etch adhesives: Boosting Anti-Demineralization and ABRZ.
J Dent
September 2025
Department of Restorative Dentistry, Faculty of Dentistry, Malaya University, Kuala Lumpur, Malaysia. Electronic address:
Objectives: to evaluate the effect of smear-layer deproteinization using papain gel and SPRG-adhesive on marginal-gap, anti-demineralization of enamel and dentin after chemical pH cycling and assess acid-base resistance zone (ABRZ) characteristics.
Methods: Cylindrical cavities were prepared cervically in thirty-two extracted premolars. Teeth were divided into two pretreatment groups (n=16); deproteinization with papain enzyme gel (Papacarie Due, Brazil) for 60 second, and no-deproteinization.
Combinatorial Pharmacotherapy of Herbal Medicine and Corticosteroids for Oral Lichen Planus: A Systematic Review.
JDR Clin Trans Res
September 2025
Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.
Background: This systematic review aims to analyze the effectiveness of the combination of herbal medicine and corticosteroids in oral lichen planus (OLP) management. By providing an updated insight into the medicinal properties of this combined treatment approach, the review seeks to address the current gap in the understanding of its therapeutic potential for this chronic premalignant disorder.
Materials And Methods: PubMed, Web of Science, Scopus, Cochrane Library, CNKI, and WanFang databases were searched to identify randomized controlled trials comparing Chinese patent medicine (CPM) with corticosteroids and corticosteroids alone in treating OLP.
Stimuli-activable hollow CuO@C/N doped paste for the prevention of white spot lesions in orthodontic treatments.
Colloids Surf B Biointerfaces
August 2025
School of Stomatology, Qingdao University, Qingdao 266023, PR China; Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China.
White spot lesions (WSLs) are the most common complication of orthodontic treatment, compromising dental health and significantly affecting aesthetics. To address this clinical challenge, this study aims to develop a dual-functional therapeutic strategy that simultaneously promotes the remineralization of demineralized enamel and inhibits the activity of cariogenic bacteria, thereby achieving effective prevention and treatment of WSLs. A hollow double-shell structured CuO@N/C nanozyme (H-CuO@N/C) was synthesized using a one-step hydrothermal method.
View Article and Find Full Text PDF