- Bonding to tooth structure
- Macro-mechanical attachment, Chemical bonding, Micro-mechanical attachment, Interpenetration (Hybrid layer) Bonding Approaches to Tooth Structure
- Adhesive bonding
- Clinical Applications, Bonded resin composite restorations, Bonded amalgam restoration, Cementing indirect ceramic restorations, Root canal posts and direct resin core build-ups, Glass ionomer restoration and cementation, Bonding of orthodontic brackets, Application of pits and fissures sealant
- Chemical Bonding Both PAA or phosphates-containing bonding agents can achieve chemical bond to HA, Micro-mechanical retention (Acid etching) Adhesive Bonding to Tooth Enamel Benefits of acid etching
- Creating surface micro-irregularities
- Increases the bonding surface area
- Removes surface debris and stains
- Increase the surface free energy Types of acids to be used, 30-50% phosphoric acid (liquid or gel), 10% Maleic acid, 2.5% Nitric acid, 8% Hydrochloric acid
- Great consistency – does not drip from the tooth surface.
- Color contrast to the tooth structure.
- Easily washable cavity (water soluble).
- PH compatible with the tooth structure enamel and dentin.
- Economic Package, an average of 250 applications.
- 2.5ml syringe with two applicator tips.