Shear bond strength of different adhesives tested in accordance with DIN 13990-1/-2 and using various methods of enamel conditioning.
J Orofac Orthop
; 76(2): 175-87, 2015 Mar.
Article
en En, De
| MEDLINE
| ID: mdl-25744095
OBJECTIVES: The purpose of this work was to analyze the shear bond strength (SBS) of different adhesives for orthodontic brackets in accordance with DIN 13990-1/-2, also taking into consideration potential effects arising from different scenarios of enamel conditioning and specimen storage. MATERIALS AND METHODS: A total of 390 experiments were performed, with groups of 10 specimens subjected to identical treatments. Three adhesives were tested: Transbond™ XT (3M Unitek, Monrovia, USA), Beauty Ortho Bond (Shofu, Kyoto, Japan), and Fuji Ortho LC (GC Europe, Leuven, Belgium). SBS was evaluated separately at the bracket-adhesive and adhesive-enamel interfaces, as well as the total (enamel-adhesive-bracket) interface. The brackets were metal brackets for upper right central incisors (Discovery® from Dentaurum, Ispringen, Germany). A universal testing machine (Zwick Z010, Ulm, Germany) was used for testing the SBS after 15 min, or after storage in distilled water at 37 °C for 24 h, or after 24 h followed by 500 thermocycles alternating between 5 and 55 °C. RESULTS: Transbond™ XT produced the highest levels of SBS. The least favorable performance was observed with Fuji Ortho LC after enamel conditioning with 10 % polyacrylic acid. Thermocycling did not have a significant influence. CONCLUSION: Transbond™ XT and Beauty Ortho Bond (but not Fuji Ortho LC) yielded levels of SBS adequate for clinical application (≥ 7 MPa).
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ensayo de Materiales
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Cementos Dentales
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Esmalte Dental
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Grabado Dental
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Incisivo
Tipo de estudio:
Evaluation_studies
/
Guideline
Límite:
Humans
Idioma:
De
/
En
Revista:
J Orofac Orthop
Asunto de la revista:
ODONTOLOGIA
/
ORTODONTIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Alemania
Pais de publicación:
Alemania