Avue A+ Calcium Hydroxide Based Root Canal Sealer

Avue A+ Calcium Hydroxide Based Root Canal Sealer Characteristics

Root canal sealers are the binding agents used with gutta-percha for obturation, usually radiopaque. They fill the anatomic space where primary filling materials fail to reach and possess great anti-microbial properties.

• Induce mineralization
• Induce apical closure via cementogenesis
• Inhibit root resorption subsequent to trauma
• Inhibit osteoclast activity via an alkaline pH
• Seal and prevent leakage

COMPOSITION

1. Base

• Calcium Oxide
• Zinc oxide
• n-ethyl-o/p-toluene sulfonamide
• Plasticizers and Thickeners

2. Catalyst

• Isobutyl Salicylate
• Methyl Salicylate
• Bismuth Trioxide
• Titanium Dioxide
• Thickeners and Plasticizers

 Anti-microbial action and Tissue Repair/Regeneration

Calcium hydroxide sealers exhibit antimicrobial activity and have osteogenic-cementogenic potential. Calcium hydroxide is antimicrobial depending on the availability of free hydroxyl ions. It has a very high pH (hydroxyl group) that encourages repair and active calcification. There is an initial degenerative response in the immediate vicinity followed rapidly by a mineralization and ossification response.

Biocompatibility

Root canal sealers and filling materials may be exposed to the periradicular tissue at the apical and lateral foramina so superior tissue tolerance to sealer is required to minimize local and systemic side effects. Calcium-containing sealer exhibited less toxicity and exhibited therapeutic effects on the surrounding tissue.

Storage

Calcium hydroxide sealers should be stored in a cool, dry, well- ventilated area in tightly sealed containers that are labeled in accordance with OSHA's hazard communication standard. Following proper storage guidelines is essential as separation can be observed if the material is stored at a very high temperature.

Anti-microbial action

The anti-microbial action of Calcium Hydroxide sealers prevents persistent residual infection and micro-organisms from re-entering through the oral cavity.

Hydrophilicity

The hydrophilic nature of Calcium Hydroxide sealer reduces the xontact angles of the sealer and increases sealer penetration into the dentinal tubes.

Bio-mineralization

Calcium Hydroxide sealers induce hard tissue formation in both Periodontal Ligament (PDL) and bone.