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Bonding performance and interfacial adaptation of modern bulk-fill restorative composites after aging in artificial saliva: an in vitro study.
Pires, Paula Maciel; de Almeida Neves, Aline; Lukomska-Szymanska, Monika; Farrar, Paul; Cascales, Álvaro Ferrando; Sauro, Salvatore.
Afiliación
  • Pires PM; Department of Pediatric Dentistry and Orthodontics, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil.
  • de Almeida Neves A; Dental Biomaterials & Minimally Invasive Dentistry, Departamento de Odontología, Facultad de Ciencias de La Salud, Universidad CEU Cardenal Herrera, Alfara del Patriarca, 46115, Valencia, Spain.
  • Lukomska-Szymanska M; Department of Pediatric Dentistry and Orthodontics, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil.
  • Farrar P; Department of General Dentistry, Medical University of Lodz, 251 Pomorska St., 92-213, Lodz, Poland.
  • Cascales ÁF; Research & Development, SDI Limited, Bayswater, Australia.
  • Sauro S; Department of Biomaterials Engineering, Faculty of Medicine, UCAM, Universidad Católica de Murcia, Campus Los Jerónimos 135, 30107, Guadalupe, Murcia, Spain.
Clin Oral Investig ; 28(2): 132, 2024 Feb 03.
Article en En | MEDLINE | ID: mdl-38308668
ABSTRACT

OBJECTIVES:

This study aimed at comparing the microtensile bond strength (MTBS) and interfacial adaptation of a modern self-curing and a light-curing restorative bulk-fill composite to a conventional composite applied with the layering technique.

METHODS:

Forty-eight occlusal cavities were divided in three main groups (16/group) based on tested materials (i) STELA, bulk-fill self-curing restorative (STELA, SDI Ltd.); (ii) 3 M-BULK, bulk-fill composite (Filtek One Bulk-Fill, 3 M Oral Care); and (iii) 3 M-CTR, a conventional composite (Filtek Supreme XTE, 3 M Oral Care). These were used in combination with their adhesives in self-etch (SE) or etch-and-rinse (ER) mode. Specimens stored in artificial saliva (24 h or 12 months) were evaluated for MTBS and fractography. The interfacial analysis was performed through confocal microscopy. ANOVA and Fisher's LSD post hoc tests were performed with a level of significance of 5%.

RESULTS:

All the tested materials applied in ER mode presented (24 h) greater bond strength than in SE mode. Although all materials showed a significant drop in the bond strength after prolonged storage, STELA showed the highest bonding performance and interfaces with few gaps. 3 M-BULK had the lowest bond strength and an interface with several voids and gaps.

CONCLUSIONS:

All materials were affected by interface degradation and bonding reduction over prolonged aging. However, their use in combination with adhesives applied in ER mode may offer greater immediate bonding performance. CLINICAL RELEVANCE The use of restorative light-curing bulk-fill composites may generate gaps at the bonding interface and voids. STELA may represent a suitable alternative to avoid such issues.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Recubrimiento Dental Adhesivo / Cementos de Resina Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Recubrimiento Dental Adhesivo / Cementos de Resina Idioma: En Revista: Clin Oral Investig Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Alemania