Air abrasion functions as a conditioning step when bonding, which means it prepares the dentin or composite molecules for bonding. Dr. David Alleman discusses the progression of bonding systems for dentin adhesion and how this conditioning step evolved along with the bonding system molecules. The latest studies from researchers independent from the bonding system manufacturers show that air abrasion increases bond strengths to a level that mimics the strength at which a natural tooth is connected to itself (30-50 MPa). This conditioning technique is what brings dentin bond strengths into the biomimetic range, maximizing bond strength and the longevity of the restoration.

Articles referenced in this episode:

• Urabe I, Nakajima S, Sano H, Tagami J. Physical properties of the dentin-enamel junction region. Am J Dent. 2000 Jun;13(3):129-35.

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