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Repair bond strength of dental computer-aided design/computer-aided manufactured ceramics after different surface treatments.
Al-Turki, Lulwa; Merdad, Yasser; Abuhaimed, Tariq A; Sabbahi, Dania; Almarshadi, Mazen; Aldabbagh, Raghad.
Afiliación
  • Al-Turki L; Department of Oral and Maxillofacial Prosthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
  • Merdad Y; Department of Operative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
  • Abuhaimed TA; Department of Operative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
  • Sabbahi D; Department of Dental Public Health, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
  • Almarshadi M; Yanbu General Hospital, Yanbu, Saudi Arabia.
  • Aldabbagh R; Department of Oral and Maxillofacial Prosthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
J Esthet Restor Dent ; 32(7): 726-733, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32886852
ABSTRACT

OBJECTIVE:

To evaluate the microtensile bond strength of four dental computer-aided design/computer-aided manufactured (CAD/CAM) ceramics after application of four different surface treatments. MATERIALS AND

METHODS:

Four dental CAD/CAM ceramics were tested feldspathic ceramic (VITABLOCKS-Mark II), polymer-infiltrated ceramic network (VITA ENAMIC), zirconia-reinforced lithium silicate (VITA SUPRINITY), and yttria-stabilized zirconia (VITA YZ T). Four surface treatments were applied no treatment, 5% hydrofluoric acid-etching, airborne particle abrasion, and tribochemical silica coating. The ceramic blocks were repaired with nanohybrid composite (Tetric N-Collection). Sixteen test groups of 12 specimens were prepared. After thermocycling, microtensile bond testing was performed. The microtensile strengths values were statistically analyzed using two-way analysis of variance and Tukey's post-hoc test.

RESULTS:

Repaired feldspathic and resin polymer-infiltrated ceramic network ceramics demonstrated superior microtensile bond strengths compared to zirconia-reinforced lithium silicate and yttria-stabilized zirconia. Etched feldspathic and polymer-infiltrated ceramic network ceramics had higher bond strength than the untreated groups. Surface treatments did not affect the bond strength of zirconia-reinforced lithium silicate and yttria-stabilized zirconia with the exception of etching, which reduced the bond strength of yttria-stabilized zirconia.

CONCLUSION:

Feldspathic ceramic and polymer-infiltrated ceramic network were repaired with dental composite after surface etching with hydrofluoric acid. Repair of zirconia-reinforced lithium silicate and yttria-stabilized zirconia did not demonstrate promising results. CLINICAL

SIGNIFICANCE:

Repair of feldspathic ceramic and polymer-infiltrated ceramic network restorations may be a cost-effective means to promote the longevity of dental restorations. However, zirconia and zirconia-reinforced lithium disilicate restorations do not offer such an option.
Asunto(s)
Texto completo: Disponible Colección: Bases de datos internacionales Base de datos: MEDLINE Asunto principal: Recubrimiento Dental Adhesivo Idioma: Inglés Revista: J Esthet Restor Dent Asunto de la revista: Odontología Año: 2020 Tipo del documento: Artículo País de afiliación: Arabia Saudita

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Texto completo: Disponible Colección: Bases de datos internacionales Base de datos: MEDLINE Asunto principal: Recubrimiento Dental Adhesivo Idioma: Inglés Revista: J Esthet Restor Dent Asunto de la revista: Odontología Año: 2020 Tipo del documento: Artículo País de afiliación: Arabia Saudita