Electro-conductive and anti-bacterial composite material, for endodontic use
AssigneeThe University of Hong Kong
InventorsFabio Savoldi, Jukka Pekka Matinlinna, Kit Hon James Tsoi, Corrado Paganelli, Luca Visconti, Giovanni Rasia Dal Polo
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Abstract
A gutta-percha-silver composite with determined weight percentage and particle size, is provided. The composite exhibits electro-conductivity greater than the standard gutta-percha composites. The new material simplifies root canal treatments, shortens the times both for clinician and patients, and reduces the exposure to patients from X-rays. The material is not only electro-conductive; it is anti-bacterial, which improves the outcomes of the procedures. Also, it has improved thermal conductivity, and mechanical properties.
Claims18
An endodontic filling material for root canal treatment, comprising:
- a gutta-percha-based material;
- and
- a metallic powder having particles greater than 10 μm, wherein at least 70% by weight of the metallic powder is mixed with the gutta-percha-based material so as to form a mixture exhibiting electro-conductivity that is detectable with an electronic apex-locator.
An endodontic filling material for root canal treatment comprising:
- a gutta-percha-based material;
- and
- a metallic powder, wherein the metallic powder is mixed with the gutta-percha-based material in sufficient quantity to form a mixture exhibiting electro-conductivity that is detectable with an electronic apex-locator, and
- wherein the gutta-percha-based material includes one paste and one powder material comprising 20% gutta-percha, 66% zinc oxide and 11% heavy metals powder.
Dependencies are inferred from the claim text.