Do titanium mini-implants have the same quality of finishing and degree of contamination before and after different manipulations? An in vitro study
Author
Zogheib, Tatiana
Walter, André
De la Iglesia, Fernando
Gil Mur, Francisco Javier
Publication date
2021ISSN
2075-4701
Abstract
Evaluate the quality of finishing and degree of contamination before and after handling and surface treatment of titanium (Ti) orthodontic mini-implants (OMIs). A scanning electron microscope (SEM) study on ninety-six titanium OMIs was done. Energy-Dispersive X-ray Analysis (EDX) identified the present particles on manufactured OMIs surfaces. Then, OMIs were manipulated with gauze (dry sterile, soaked in chlorhexidine) and gloves (latex, nitrile) to evaluate the contamination of these handling materials. Finally, OMIs underwent surface treatments and were placed in bone to observe the contaminants they released. Roughness (Ra) and wettability with contact angle parameter (CA) were measured on these treated OMIs. Machined OMIs presented surface irregularities and were contaminated with manufacturing-process particles (carbon, plastic Polyvinyl Chloride PVC, aluminum). Hand-manipulated OMIs were also contaminated by the handling materials. OMIs surface characteristics were as follows: acid-etched (Ra ≈ 1.3 μm, CA ≈ 66°), machined (Ra ≈ 0.3 μm, CA ≈ 68°), SB (Ra ≈ 3.3 μm, CA ≈ 78°), and SBAO (Ra ≈ 3.1 μm, CA ≈ 92°). Bone was contaminated by OMIs surface defects and extra particles. Manufactured OMIs have surface contaminants that increase with clinical handling. Surface treatments (SBAO, a combination of sandblasting and anodic oxidation) increase the roughness and contact angle, which play an important role in osseointegration. Surface-treated OMIs leave titanium particles in the bone during their insertion-removal. The use of a gauze soaked in chlorhexidine is recommended when handling OMIs. Further investigations would be interesting to study more variables and confirm the present results.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
616 - Pathology. Clinical medicine
Keywords
Titani
Implants dentals
Ortodòncia
Raigs X
Ossos
Titanio
Implantes dentales
Ortodoncia
Rayos X
Huesos
Titanium
Dental implants
Orthodontics
X-rays
Bones
Pages
11
Publisher
MDPI
Collection
11; 2
Is part of
Metals
Citation
Zogheib, Tatiana; Walter-Solana, André; De La Iglesia, Fernando [et al.]. Do titanium mini-implants have the same quality of finishing and degree of contamination before and after different manipulations? An in vitro study. Metals, 2021, 11, 245. Disponible en: <https://www.mdpi.com/2075-4701/11/2/245>. Fecha de acceso: 25 feb. 2021. DOI: 10.3390/met11020245
Grant agreement number
info:eu-repo/grantAgreement/MICINN/RTI2018-098075-B-C22
This item appears in the following Collection(s)
- Odontologia [245]
Rights
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by/4.0/