AH Plus root canal sealer from Dentsply Caulk used for permanent sealing. AH Plus sealer is easy to mix and provides a long lasting tight seal to the walls of the prepared root canal. Dentsply AH Plus flows into all accessory canals and no need to rush the procedure and is highly visible under X-ray film and digital imaging. Handling is quicker and easier. Permanent dental sealer is ideal for use with Thermafil. AH root canal sealer comes with powder and resin.