Related Experiment Video
Updated: Jan 23, 2026

Using Q Suture to Enhance Resistance to Gap Formation and Tensile Strength of Repaired Flexor Tendons
Published on: June 3, 2020
Evaluation of experimental calcium-containing primer in adhesive system on micro-tensile bond strength and acid
Yukina Ochiai1, Go Inoue1, Toru Nikaido1
1Department of Cariology and Operative Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU).
Abstract:
Modern adhesive systems have been developed for enhanced mechanical and antibacterial properties; however, no such systems contain a calcium source to enhance bond strength. Therefore, we evaluated the effect of an experimental calcium-containing primer (10 wt% CaCl2) in two-step self-etching adhesive systems on micro-tensile bond strength (μ-TBS) and acid resistance in dentin adhesive interface observations after acid-challenge using scanning electron microscopy. Using two types of primers and bonding agents (Clearfil SE Bond primer (SEP), experimental calcium-containing primer (CaP), Clearfil SE Bond (SEB), and Clearfil Protect Bond), we prepared four experimental groups. The μ-TBS of CaP-SEB did not differ from that of SEP-SEB. Meanwhile, the CaP groups showed a thicker acid-base resistance zone. Thus, two-step self-etching adhesive system composed of experimental calciumcontaining primer can be used as an adhesive system with high acid resistance and acceptable bond strength.
Related Concept Videos
Acid Strength and Molecular Structure
In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
Tensile Strength Considerations of Concrete
The dimensions and shape of a concrete specimen...
Relation Between Tensile Strength and Compressive Strength of Concrete
Bonding and Strength of Aggregate
Relative Strengths of Conjugate Acid-Base Pairs
Acid and Bases: Ka, pKa, and Relative Strengths

