Is cyanocrylate adhesive safe for denture?

No, cyanoacrylate adhesive, commonly known as super glue, should not be used for denture repair.

Although it forms a strong bond, cyanoacrylate adhesives are not suitable for use on dentures for several reasons:

1. Toxicity: Cyanoacrylate adhesives emit fumes during the curing process, which can cause irritation to the eyes, nose, and throat. Inhalation of these fumes can lead to respiratory problems, particularly in enclosed or poorly ventilated spaces.

2. Lack of biocompatibility: Cyanoacrylate adhesives are not medical grade materials and are not intended for use in the mouth. They can release harmful chemicals when in contact with saliva and oral tissues, potentially causing allergic reactions, irritation, or other health issues.

3. Poor adhesion to denture materials: Cyanoacrylate adhesives may not adhere properly to denture materials, leading to weak and unreliable repairs. The bond formed by super glue may not withstand the forces of chewing and biting, causing the denture to break or become loose.

4. Inappropriate flexibility: Cyanoacrylate adhesives are rigid and do not provide the necessary flexibility for dentures. Dentures need to flex slightly to properly conform to the shape of the mouth, and rigid adhesives can cause discomfort or damage to the denture or surrounding tissues.

5. Difficult removal: If a repair using super glue needs to be adjusted or reversed, it can be extremely difficult to remove the adhesive without damaging the denture. Super glue is designed to form a permanent bond, making it challenging to separate the repaired parts.

For safe and effective repair of dentures, it is essential to use dental-grade materials and techniques. Consulting a dental professional or a certified dental laboratory is the best option to ensure the repair is done correctly, ensuring both safety and durability.