Introduction: Composite resin is commonly used in dental restorations, though it is prone to degradation over time. Repairing these restorations is often preferable for issues such as discoloration, small areas of decay near the restoration margin, or for preserving tooth health without the need for complete removal.
Method: Sixty acrylic blocks with cavities were restored using FILTEK-Z-250 XT composite resin, which was then light-cured. After 300 thermal cycles, the blocks were divided into three groups: control, diamond bur-abraded, and aluminum oxide air-abraded. Each group was further subdivided into two subgroups, treated with either Ivoclar Tetric N-bond or 3M ESPE Single Bond Universal adhesive. Shear bond strengths (SBSs) were tested after applying additional composite, and the types of fractures were analyzed.
Results: The air-abrasion group (Group III) exhibited the highest SBS values compared to the other groups. Specifically, Group IIIb (air-abrasion combined with 3M ESPE Single Bond Universal adhesive) recorded the highest SBS values overall and within its subgroup.
Conclusion: Treating the composite material's surface with mechanical methods, especially air-abrasion, improves its repairability.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11805243 | PMC |
| http://dx.doi.org/10.4103/jpbs.jpbs_956_24 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Interaction of integrin αβ and fibronectin under fluid shear forces: implications for tumor cell adhesion and migration.
Front Cell Dev Biol
February 2025
Department of Nephrology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China.
The interaction between integrin αβ and fibronectin enables tumor cell adherence to endothelial layers under diverse hydrodynamic blood flow conditions, particularly in low shear stress regions. Understanding the mechanical binding characteristics between integrin αβ and fibronectin under different hydrodynamic environments can provide insights into tumor cell invasion and proliferation. Here, the adhesive behavior of fibronectin-functionalized microspheres on integrin αβ-coated substrates under various wall fluid shear forces (0.
View Article and Find Full Text PDFEffect of various solvents on the repairability of aged CAD/CAM provisional restorative materials with flowable resin composite: an in vitro study.
BMC Oral Health
March 2025
Division of Prosthodontics, Faculty of Dentistry, Thammasat University, Pathumthani, 12120, Thailand.
Background: Increased bond strength between aged CAD/CAM (Computer-Aided Design and Computer-Aided Manufacturing) provisional restorative materials is essential for reparability. This study investigated the impact of three different solvents and airborne-particle abrasion on the shear bond strength (SBS) of aged CAD/CAM provisional restorative materials, which are milled PMMA and 3D-printed resin with flowable resin composite.
Methods: 3D-printed resin and milled PMMA (N = 160 per type) were fabricated into cylindrical shapes (5 mm in diameter, 5 mm in height), aged by 5,000 thermocycling cycles, and randomize divided at random into five groups (N = 32) based on surface modification protocols: control; non-surface modification, MEK; application with methyl ethyl ketone, THF; application with tetrahydrofuran, Alc; application with isopropyl alcohol, and APA; airborne-particle abrasion with 50-µm alumina oxide particle.
Influence of Applied Pressure and Thickness Variation on the Bond Strength Between 3Y-TZP Zirconia and Self-Adhesive Resin Cement.
J Biomed Mater Res B Appl Biomater
March 2025
Center for Micro-Electro Mechanical Systems (CMEMS-UMinho), University of Minho, Guimarães, Portugal.
This study evaluated the influence of applied pressure on the shear bond strength (SBS) between commercial 3Y-TZP zirconia and self-adhesive resin cement. Five test groups were created, each subjected to different applied pressures: 195.15, 97.
View Article and Find Full Text PDFImpact of Silanized Nanographene Oxide Concentrations in Different Primers on Bonding Durability between Resin Cement and Zirconia.
Eur J Dent
March 2025
Department of Dental Biomaterials, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
Objectives: Zirconia (ZrO) has been used in dental restorations due to its increased mechanical properties, biocompatibility, low degree of bacterial adhesion, and acceptable optical properties. One of the major drawbacks of ZrO is its short-term durable bond with resin cement. The objective of this study was to evaluate the effect of different primers embedded with silanized nanographene oxide (SGO) sheets on the wettability of ZrO surface and bond strength durability between resin cement and ZrO.
View Article and Find Full Text PDFThe Impact of Surface Roughness and Different Pre-treatments on the Shear Bond Strength of Super-translucent Multi-layered Zirconia to Adhesive Resin Cement: An In Vitro Study.
Cureus
February 2025
Department of Fixed Prosthodontics, Faculty of Dental Medicine, Damascus University, Damascus, SYR.
Purpose The purpose of this in vitro study was to examine the impact of surface pre-treatment on the shear bond strength (SBS) of an adhesive resin cement to super-translucent multi-layered (STML) zirconia. Materials and methods Forty (n = 40) uniformly sized discs of STML zirconia (Katana, Kuraray, Noritake Dental Inc., Okayama, Japan), with dimensions of 3 mm in diameter and 3 mm in thickness, were produced using computer-aided design (CAD)/computer-aided manufacturing (CAM) technology and subsequently sintered following the manufacturer's instructions.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!