Comparison of penetration depth into dentinal tubules and push-out bond strength of zinc oxide and copper doped zinc oxide nanoparticles sealers : an in-vitro study
Narges Farhad Mollashahi, Eshaghali Saberi, Amin Motameni Tabatabaei, Sina Radfar · 2026
Read Comparison of penetration depth into dentinal tubules and push-out bond strength of zinc oxide and copper doped zinc oxide nanoparticles sealers : an in-vitro study by Narges Farhad Mollashahi, Eshaghali Saberi, Amin Motameni Tabatabaei, Sina Radfar (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13573381.txt.
Description
Narges Farhad Mollashahi, with three colleagues, reports a 2026 lab study of root canal sealers made with tiny zinc oxide particles. A sealer must creep into fine tooth tubes and grip the canal wall for a lasting fill. Shrinking the particles, or adding copper to them, may push both traits up.
The team used 90 pulled human teeth with single roots, split into sets for depth and strength tests. Three sealers were compared: standard zinc oxide, a nano form, and a copper-doped nano form. The nano sealer sank deepest into the tooth tubes, and depth fell from crown to tip in all groups. For push-out strength, the copper-doped form topped the list, the nano form came next, and the standard form trailed. The authors say particle tweaks can lift sealer performance.
Catalog record
| CREATOR | Narges Farhad Mollashahi, Eshaghali Saberi, Amin Motameni Tabatabaei, Sina Radfar |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 36031 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |