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Bonding agent (dental adhesive)

Also called: bond, adhesive, primer

A thin liquid resin that glues composite fillings to the tooth.

Bonding agents are thin, light-cured resins painted on etched or primed tooth structure so composite fillings and some cements stick. Some are used after a separate etch step; self-etch types combine steps. They are hardened with the curing light.

How to spot it

  • Small dark bottles or single-dose units, a mixing well and tiny brush applicators.

What it is used for

  • Dispense just before use into a covered well; the bottle stays capped because light starts the set.

Safety and care

  • Resin (methacrylates) can cause skin allergies; avoid skin contact and change gloves if contaminated.
  • Use blue-light eye protection when curing.

Related

Sources: Boyd LD, Mallonee LF, Wyche CJ. Wilkins' Clinical Practice of the Dental Hygienist, 14th ed. Jones & Bartlett, 2024, ADA. Oral Health Topics: Dental Curing Lights, CDC. Guidelines for Infection Control in Dental Health-Care Settings, 2003. MMWR 2003;52(RR-17)