Do irrigation solutions effect bond strength of composite resin to deep margin elevation material? An in-vitro study
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2025-05-28 |
| Journal | BMC Oral Health |
| Authors | Ćeref Nur Mutlu, Yasemin Derya FÄ°DANCIOÄLU, Hatice BĂŒyĂŒközer Ăzkan, Hayriye Esra Ălker |
| Institutions | Alanya University, Necmettin Erbakan University |
| Analysis | Full AI Review Included |
Technical Documentation & Analysis: Precision Diamond for Biomedical Testing
Section titled âTechnical Documentation & Analysis: Precision Diamond for Biomedical TestingâResearch Paper Analyzed: Mutlu et al. (2025). Do irrigation solutions effect bond strength of composite resin to deep margin elevation material? An in-vitro study. BMC Oral Health.
Executive Summary
Section titled âExecutive SummaryâThis research highlights the critical role of material integrity in biomedical applications, specifically evaluating the bond strength of composite resins used in Deep Margin Elevation (DME) after exposure to common endodontic irrigation solutions.
- Core Finding: Prolonged exposure to 5.25% Sodium Hypochlorite (NaOCl) significantly degrades the bond strength of flowable composite resins, reducing mean strength from 37.44 MPa (Control) to as low as 25.12 MPa.
- Optimal Protocol: Protocols utilizing Chlorine Dioxide (ClO2) maintained bond strength comparable to the control group (up to 36.81 MPa), suggesting ClO2 is preferable for preserving restoration integrity.
- Methodological Requirement: The studyâs success hinges on the precise preparation of microtensile test sticks (~1 mm2 cross-section), achieved using an IsoMetÂź low speed diamond saw under water.
- 6CCVD Value Proposition: Replicating or extending this high-precision material science requires ultra-low-damage cutting tools. 6CCVD supplies high-purity Single Crystal Diamond (SCD) wafers and plates, essential for manufacturing the high-performance diamond saw blades used in such critical biomedical sample preparation.
- Material Inertness: The use of highly corrosive agents (NaOCl, ClO2) underscores the need for chemically inert materials, a core property of 6CCVDâs CVD diamond products.
Technical Specifications
Section titled âTechnical SpecificationsâThe following hard data points were extracted from the methodology and results sections of the research paper:
| Parameter | Value | Unit | Context |
|---|---|---|---|
| Control Bond Strength (Mean) | 37.44 ± 4.38 | MPa | Untreated composite |
| Lowest Bond Strength (Mean) | 25.12 ± 6.10 | MPa | Group A2 (NaOCl/HEDP protocol) |
| Highest Bond Strength (Mean) | 36.81 ± 10.14 | MPa | Group B3 (ClO2/EDTA protocol) |
| Initial Irrigation Time | 30 | min | NaOCl (5.25%) or ClO2 (3.5%) immersion |
| NaOCl Concentration | 5.25 | % | Initial immersion solution (Group A) |
| ClO2 Concentration | 3.5 | % | Initial immersion solution (Group B) |
| Sandblasting Particle Size | 40 | ”m | Sodium Bicarbonate powder |
| Sandblasting Distance/Angle | 5 / 30 | mm / ° | Applied for 10 seconds |
| Light Curing Intensity | 1000 | mW/cm2 | Applied for 20 seconds |
| Microtensile Sample Area | ~1 | mm2 | Rectangular sticks cut perpendicular to interface |
| Crosshead Speed | 1.0 | mm/min | Universal testing device (TSD 500) |
Key Methodologies
Section titled âKey MethodologiesâThe experiment utilized a complex, multi-step protocol to simulate clinical root canal irrigation followed by restoration bonding.
- Composite Block Fabrication: Standard composite blocks (G-aenialÂź Universal Injectable) measuring 7 mm x 7 mm x 10 mm were prepared and light-cured (1000 mW/cm2 for 20 s).
- Surface Preparation: Surfaces were polished with 600-grit abrasive to ensure uniformity.
- Initial Immersion: Blocks were divided into Group A (5.25% NaOCl) and Group B (3.5% ClO2) and immersed for 30 minutes, with solutions renewed every 10 minutes.
- Final Irrigation Protocols: Subgroups (A1-A4, B1-B4) received specific sequences of chelating agents (17% EDTA or 18% HEDP), primary irrigants (NaOCl or ClO2), Distilled Water, and 2% Chlorhexidine (CHX).
- Surface Activation: After irrigation, samples were washed, dried, and sandblasted for 10 seconds using 40 ”m Sodium Bicarbonate powder at a 5 mm distance and 30° angle.
- Bonding and Restoration: G-Premio Bond was applied and light-cured, followed by incremental application and curing of G-aenialÂź AâCHORD composite resin.
- Precision Cutting: The restored blocks were cut perpendicular to the interface using an IsoMetÂź low speed diamond saw under water coolant to obtain rectangular sticks with an average cross-sectional area of ~1 mm2.
- Microtensile Testing: Samples (n = 15 per group) were fixed to a universal testing device and tested at a crosshead speed of 1.0 mm/min.
6CCVD Solutions & Capabilities
Section titled â6CCVD Solutions & CapabilitiesâThe rigorous microtensile bond strength testing described in this paper demands materials and tools capable of ultra-high precision, low-damage sample preparation. 6CCVD specializes in the CVD diamond materials necessary to manufacture these critical components.
Applicable Materials
Section titled âApplicable MaterialsâTo replicate the high-precision cutting achieved by the IsoMetÂź low speed diamond saw, the manufacturing of the diamond blade requires the highest quality diamond material.
- Optical Grade Single Crystal Diamond (SCD): Required for manufacturing precision cutting blades (e.g., IsoMetÂź type saws). SCD offers superior hardness, thermal stability, and wear resistance, ensuring the blade maintains a sharp, consistent edge necessary for cutting delicate composite/dentin interfaces without inducing micro-fractures or thermal damage.
- Chemically Inert PCD/SCD: Given the exposure to highly corrosive agents like 5.25% NaOCl and 3.5% ClO2, 6CCVDâs diamond materials are ideal for any fluid-contact components (e.g., sensor windows, nozzles, or wear parts) required in the delivery or monitoring of these aggressive chemical solutions.
Customization Potential
Section titled âCustomization Potentialâ6CCVDâs advanced MPCVD capabilities directly support the engineering requirements for specialized biomedical tools and testing apparatus.
| Research Requirement | 6CCVD Customization Capability |
|---|---|
| Ultra-Precision Cutting Blades: Need for blades capable of cutting ~1 mm2 cross-sections with minimal damage. | Custom SCD Wafers: We supply SCD plates up to 500 ”m thick, polished to Ra < 1 nm, ideal for manufacturing the highest quality, low-vibration diamond saw blades for micro-tensile sample preparation. |
| Large-Format Tooling: Manufacturing large or custom-shaped diamond components for testing rigs or fluid handling. | Large Area PCD: We offer Polycrystalline Diamond (PCD) plates and wafers up to 125 mm in diameter and thicknesses up to 500 ”m, suitable for large-scale wear parts or heat spreaders in testing equipment. |
| Integrated Sensor/Electrode Needs: If future research involves electrochemical monitoring of irrigation solutions (e.g., ClO2 concentration). | Boron-Doped Diamond (BDD) & Metalization: We provide custom BDD electrodes for electrochemistry and offer in-house metalization services (Au, Pt, Pd, Ti, W, Cu) for creating integrated contacts or specialized sensor interfaces. |
Engineering Support
Section titled âEngineering Supportâ6CCVDâs in-house PhD team provides expert material consultation to ensure optimal performance in demanding scientific environments. We can assist researchers and engineers with material selection for similar High-Precision Biomedical Cutting and Corrosive Fluid Handling projects, guaranteeing that the diamond material meets the stringent requirements for chemical inertness and mechanical stability.
For custom specifications or material consultation, visit 6ccvd.com or contact our engineering team directly.