J Korean Acad Prosthodont.  2010 Jan;48(1):8-15. 10.4047/jkap.2010.48.1.8.

Influence of air abrasion and different dentin sealing techniques on microtensile bond strength to dentin

  • 1Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Korea. sunjai@yuhs.ac
  • 2Department of Conservative Dentistry, Dental Hospital, Gangnam Severance Hospital, Yonsei University, Seoul, Korea.
  • 3Department of Prosthodontics, Dental Hospital, Gangnam Severance Hospital, Yonsei University, Seoul, Korea.


The purpose of this study was to evaluate the effect of various methods of dentin bonding agent application and air abrasion pretreatment on microtensile bond strength between dentin and resin, using a self-etching adhesive system. MATERIAL AND METHODS: Thirty freshly extracted human molars were obtained and divided into 6 groups of 5 teeth. A 2-step self etching adhesive system (Clearfil SE Bond) was used for all groups. The control specimens were prepared using a direct immediate bonding technique. The delayed dentin sealing specimens were prepared using an indirect approach without dentin prebonding. The immediate dentin sealing specimens were prepared using dentin prebonding immediately following preparation. Immediate dentin sealing teeth and delayed dentin sealing teeth had provisional restorations using Fermit for two weeks. Then all specimens of each group were divided into two groups of three, depending on air abrasion pretreatment. Composite "crowns" were incrementally built on and specimens were stored in water for 24 hours. All teeth were prepared for a microtensile bond strength test. Bond strength data were analyzed with a one-way ANOVA test, and post hoc comparison was done using the Scheffe's test.
The mean microtensile bond strengths of all groups were not statistically different from each other.
When preparing teeth for indirect restorations, IDS and DDS with Clearfil SE bond, have no difference on the microtensile bond strength between dentin and resin. Air abrasion pretreatment did not affect the microtensile bond strength when using IDS and DDS with Clearfil SE bond.


Immediate dentin sealing; Delayed dentin sealing; Clearfil SE bond; Microtensile bond strength

MeSH Terms

Polymethacrylic Acids
Resin Cements
Polymethacrylic Acids
Resin Cements


  • Fig. 1. Flow chart of procedures of each group.

  • Fig. 2. Microtensile test.

  • Fig. 3. Microtensile bond strength (MPa) of each group.

  • Fig. 4. SEM illustrating surface of each specimen. (A, Control; B, C-A; C, IDS; D, IDS-A; magnification × 1,000)


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