Braz Oral Res
Universidade Federal de Goiás - UFG, School of Dentistry, Department of Restorative Dentistry, Goiânia, Goiás, Brazil.
Published: February 2023
The aim of this study was to evaluate the effect of different die materials used in the indirect resin composite restorative technique on the fracture resistance and failure mode of restored molars and compare it with the direct resin composite restorative technique. Two flexible die silicone materials for dental models (Die Silicone - Voco and Scan die - Yller) and a type IV dental stone material (Fujirock EP - GC) were evaluated. Sixty third molars were selected and divided into four groups: indirect resin composite restoration - Die silicone (IRCR-DS); indirect resin composite restoration - Scan die (IRCR-SD); indirect resin composite restoration - Fujirock EP (IRCR-FR), and direct resin composite restoration (DRCR). Class II MOD cavities were prepared with 5 mm of buccolingual width and depth. The specimens were restored and subjected to an axial compression load until fracture, and the data were analyzed by one-way ANOVA and Tukey's HSD test (α=.05). The fracture mode was classified into restorable and unrestorable fractures. Fracture resistance values were influenced by the die material used for the IRCR fabrication and by the restorative technique (p<.001). Fracture resistance mean values and standard deviation were: IRCR-DS: 1835.5 ± 324.0 A; IRCR-SD: 1732.5 ± 384.1 AB; IRCR-FR: 1419.3 ± 318.8 BC; and DRCR: 1100.6 ± 224.9 C. Restorable fracture was more prevalent. IRCR with flexible die casts promoted higher fracture resistance and lower prevalence of unrestorable fractures.
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http://dx.doi.org/10.1590/1807-3107bor-2023.vol37.0017 | DOI Listing |
Sci Rep
January 2025
Institute of Biology (Inbio), Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil.
This study assessed the effect of composite resins, aggregated or not with S-PRG particles, and the use of toothpaste in controlling demineralization and bacterial growth. Human molars were distributed into 3 groups: control (CT) - sound teeth, Beautifil Bulk Restorative System (aggregated with S-PRG) (BB), Filtek One Bulk Fill (without S-PRG) (FB). Teeth destined for groups BB and FB previously received Class I preparations (4 × 4 × 4 mm), followed by single-increment restorations.
View Article and Find Full Text PDFBMC Oral Health
January 2025
Department of Endodontics, Faculty of Dentistry, Cukurova University, Adana, 01380, Turkey.
Objective: This in vitro study aimed to investigate the effect of five polishing systems on the surface roughness (SR) and color change (CC) of novel bulk-fill composite resins.
Methods: Fifty composite resin samples were prepared for each of the five groups: Stark Bulk Fill, SDR Plus, SonicFill 3, Charisma Bulk Flow One, and Filtek Z250. Each group of composite resins was further subdivided into five subgroups based on the polishing method applied: OptraGloss (OG), OptraGloss combined with Diapolisher paste (OG), OptiDisc (OD), OptiDisc combined with Diapolisher paste (OD), and Occlubrush (OCC) (n = 10).
The objective of this systematic literature review was to investigate the effect of Coca-Cola on the properties and, more generally, on the integrity of direct dental filling materials. In addition, it aimed to highlight the importance of dietary behaviour in dentistry and, in this context, to identify tangible strategies for action in routine clinical practice. An electronic search was conducted between January 2022 and July 2024.
View Article and Find Full Text PDFInt Dent J
January 2025
Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Institute of Science Tokyo, Bunkyo-ku, Tokyo, Japan.
Introduction And Aims: Marginal sealing by enamel bonding is important to enhance the durability of the restoration and prevent secondary caries after operative procedure. This study aimed to evaluate the enamel acid resistance and bond strength of an experimental calcium-containing adhesive system.
Methods: All materials were provided by Kuraray Noritake Dental, Inc.
Rev Med Liege
January 2025
Service de Dentisterie conservatrice, endodontie et pédodontie, CHU Liège, Belgique.
Infraclusion is a consequence of dentoalveolar ankylosis. Associated complications include extrusion of the opposing tooth, open bites, and tilts. Early detection and management are crucial to limit and/or correct these complications.
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