Related Experiment Video
Updated: May 18, 2026
08:40
Standard Test Method ASTM D 7998-19 for the Cohesive Strength Development of Wood Adhesives
Published on: May 17, 2020
Laboratory bonding ability of a multi-purpose dentin adhesive
Jorge Perdigão1, Ana Sezinando, Paulo C Monteiro
1School of Dentistry, University of Minnesota, 515 SE Delaware St., 8-450 Moos Tower, Minneapolis, MN 55455, USA. perdi001@umn.edu
American Journal of Dentistry
|September 20, 2012
Summary
The OptiBond SOLO Plus (OSL) adhesive applied to moist dentin achieved the highest microtensile bond strength (microTBS). This study evaluated dental adhesive performance under various bonding strategies, offering insights into optimal application techniques for enhanced dental restorations.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
- Biomaterials Engineering
Background:
- Dental adhesives are crucial for the longevity of restorations.
- Understanding the impact of dentin moisture and application strategy on bond strength is essential.
- New multi-purpose adhesives require thorough evaluation of their performance.
Purpose of the Study:
- To compare the microtensile bond strength (microTBS) of a new multi-purpose dental adhesive.
- To evaluate the interfacial ultra-morphology of the adhesive under different bonding strategies.
- To assess the influence of dentin surface moisture on adhesive performance.
Main Methods:
- Thirty-six human molars were divided into six groups, testing Clearfil SE Bond (CSE) and Scotchbond Universal Adhesive (SBU) under self-etch and etch-and-rinse modes.
- OptiBond SOLO Plus (OSL) was tested in etch-and-rinse mode on both moist and air-dried dentin.
- MicroTBS testing and Field Emission Scanning Electron Microscopy (FESEM) analysis of interfaces were performed.
Main Results:
- OptiBond SOLO Plus (OSL) applied to moist dentin yielded the highest mean microTBS (63.0 MPa).
- All Scotchbond Universal Adhesive (SBU) groups showed similar bond strengths irrespective of dentin condition.
- Clearfil SE Bond (CSE) and OSL on air-dried dentin exhibited the lowest microTBS.
Conclusions:
- The application of OptiBond SOLO Plus (OSL) on moist dentin is recommended for optimal bond strength.
- Scotchbond Universal Adhesive (SBU) demonstrates consistent performance across different dentin moisture conditions.
- Dentin surface moisture significantly influences the bond strength of certain dental adhesives.
Related Concept Videos
01:12Bonding and Strength of Aggregate
The bond between aggregate particles and the cement matrix is significantly influenced by the shape and surface texture of the aggregates. High-strength concretes benefit from a rougher texture, which leads to stronger bonding due to greater adhesion. Angular aggregates with larger surface areas also enhance this bond. The bonding quality, however, is complex to assess as no universally accepted test exists. Good bonding is indicated when a crushed concrete specimen shows some aggregate...
01:17Mortar Properties
Mortar properties encompass a range of characteristics crucial for construction and masonry work, including workability, water retention, bond strength, durability, compressive strength, volume change, and appearance. Workability refers to mortar's ability to be easily applied and manipulated without sagging or falling off surfaces, which is important for efficient masonry unit placement and alignment. Water retention is essential to prevent the mortar from losing moisture too quickly to the...
01:20Strength of Cement
Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in ASTM C...
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in ASTM C...
01:22EDTA: Chemistry and Properties
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
00:43Complexometric Titration: Ligands
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...