Roughness and wettability effect on histological and mechanical response of self-drilling orthodontic mini-implants
Autor/a
BRAVO-GONZÁLEZ, LUIS-ALBERTO
PEGUEROLES, MARTA
Gil Mur, Francisco Javier
Fecha de publicación
2016ISSN
1432-6981
Resumen
Self-drilling orthodontic mini-implants can be used as temporary devices for orthodontic treatments. Our main goal was to evaluate surface characteristics, roughness and wettability, of surface modified mini-implants to increase their stability during orthodontic treatment without inducing bone fracture and tissue destruction during unscrewing.; Modified mini-implants by acid etching, grit-blasting and its combination were implanted in 20 New Zealand rabbits during 10 weeks. After that, the bone-to-implant (BIC) parameter was determined and the torque during unscrewing was measured. The surface characteristics, roughness and wettability, were also measured, onto modified Ti c.p. discs.; Acid-etched mini-implants (R (a) a parts per thousand 1.7 mu m, contact angle (CA) a parts per thousand 66A degrees) significantly improved the bone-to-implant parameter, 26 %, compared to as-machined mini-implants (R (a) a parts per thousand 0.3 mu m, CA a parts per thousand 68A degrees, BIC = 19 %) due to its roughness. Moreover, this surface treatment did not modify torque during unscrewing due to their statistically similar wettability (p > 0.05). Surface treatments with higher roughness and hydrophobicity (R (a) a parts per thousand 4.5 mu m, CA a parts per thousand 74A degrees) lead to a greater BIC and to a higher removal torque during unscrewing, causing bone fracture, compared to as-machined mini-implants.; Based on these in vivo findings, we conclude that acid-etching surface treatment can support temporary anchoring of titanium mini-implants.; This treatment represents a step forward in the direction of reducing the time prior to mini-implant loading by increasing their stability during orthodontic treatment, without inducing bone fracture and tissue destruction during unscrewing.
Tipo de documento
Artículo
Versión del documento
Versión aceptada
Lengua
English
Materias (CDU)
616.3 - Patología del aparato digestivo. Odontología
Palabras clave
Miniimplants
Tractaments superficials
Osteointegració
Parell motor
Estudis in vivo amb animals
Mini-implantes
Tratamientos superficiales
Osteointegración
Esfuerzo de torsión
Estudios en animales in vivo
Mini-implants
Surface treatments
Osseointegration
Torque
In vivo animal studies
Páginas
15
Publicado por
Springer Nature
Colección
20;
Publicado en
Clinical Oral Investigations
Citación
Espinar-Escalona, Eduardo; Bravo-Gonzalez, Luis-Alberto; Pegueroles Neyra, Marta [et al.]. Roughness and wettability effect on histological and mechanical response of self-drilling orthodontic mini-implants. Clinical oral investigations, 2016, 20(5), p. 1115-1120. Disponible en: <https://link.springer.com/article/10.1007/s00784-016-1770-y>. Fecha de acceso: 12 nov. 2021. DOI: 10.1007/s00784-016-1770-y
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- Odontologia [248]
Derechos
© 2021 Springer Nature Switzerland AG.