Prime & Bond NT 3.5ml Dentsply

Prime & Bond NT is a universal self-priming dental adhesive designed to bond light-cured composite materials and Dyract compomer materials to enamel and dentine as well as to metals and ceramics. Prime & Bond NT combines primer and adhesive in a single bottle. It also maintains excellent bond strengths and protection against microleakage. By mixing Prime&Bond® NT with Self-Cure Activator, a universal, dual-cure self-priming dental adhesive system is obtained. This system is designed to bond dual- or self-cured composites to enamel, dentine, and restorative materials even in areas inaccessible to light.

The 10 best ways to use Prime&Bond NT:

For all types of restorations

• To obtain an optimum of marginal quality and bond strength and to avoid post-operative sensitivity, do not overreach dentine (etch dentine 15 seconds or less).
• Apply Prime&Bond NT to a moist cavity surface as overdrying of the tooth preparation has been associated with a decrease of bond strength to dentine and with post-operative sensitivity. Dry by very short (1 to 3 seconds) blasts from an air syringe or solely blot-dry with a cotton pellet.
• For an optimum of solvent concentration, efficiency of the procedure, and economy, apply adhesive directly from the bottle onto an applicator tip.
• To achieve a complete sealing of the cavity surface, apply ample amounts of Prime&Bond NT. All cavity surfaces should be saturated,which may necessitate consecutive applications of a drop of Prime&Bond NT to thoroughly wet all cavity surfaces.
• To obtain an optimum layering thickness, wait for 20 seconds after application of Prime&Bond NT and remove remaining solvent by gentle blow of air from a dental air syringe. Ease of solvent removal is one of the great advantages of acetone-based adhesives.

For indirect restorations

Components of Prime & Bond NT and their functions

• PENTA - Adhesion promoter, wetting aid and crosslinker
• UDMA Resin - Resin molecule of intermediate elasticity when cured
• Resin R5-62-1 - Elastomeric element in the cured network
• T-Resin - Small, crosslinking molecule
• D-Resin - Small, mobile resin molecule for good dentine infiltration
• Nanofiller - Nanoscale functionalized filler for increased strength and crosslinking
• Initiators - Initiate the light- curing reaction
• Stabiliser - Stabilises material during storage
• Cetylamine - Fluoride Source
• Acetone - Solvent and carrier for the resins; water displacer.

• Light-curing of Prime&Bond NT or of the mix of Prime&Bond NT and Self-Cure Activator applied to the prepared tooth will increase bond strength.
• If gross pooling of the adhesive is avoided, light-curing of the adhesive will not result in a high restoration thanks to the low film thickness of Prime&Bond NT.
• For most indirect procedures, where light-cured or dual-cured luting cement are used, Prime&Bond NT can be used on its own (without the need to mix with Self-Cure Activator).
• In the case of metallic restorations, light-cure the adhesive applied to the restoration prior to luting.