Comparative Evaluation of the Repair Bond Strength of Dental Resin Composite after Sodium Bicarbonate or Aluminum Oxide Air-Abrasion.
aluminum oxide
dental adhesive
repair bond strength
resin composite
sodium bicarbonate
Journal
International journal of molecular sciences
ISSN: 1422-0067
Titre abrégé: Int J Mol Sci
Pays: Switzerland
ID NLM: 101092791
Informations de publication
Date de publication:
17 Jul 2023
17 Jul 2023
Historique:
received:
01
05
2023
revised:
19
05
2023
accepted:
14
07
2023
medline:
31
7
2023
pubmed:
29
7
2023
entrez:
29
7
2023
Statut:
epublish
Résumé
The dental prophylactic cleaning of a damaged resin-based composite (RBC) restoration with sodium bicarbonate can change the surface characteristics and influence the repair bond strength. The purpose of this study was to compare the effect of sodium bicarbonate (SB) and aluminum oxide (AO) surface treatments on the microtensile bond strength (µTBS) of repaired, aged RBC. Bar specimens were prepared from microhybrid RBC and aged in deionized water for 8 weeks. Different surface treatments (AO air-abrasion; SB air-polishing), as well as cleaning (phosphoric acid, PA; ethylene-diamine-tetraacetic-acid, EDTA) and adhesive applications (single bottle etch-and-rinse, ER; universal adhesive, UA), were used prior to the application of the repair RBC. Not aged and aged but not surface treated RBCs were used as positive and negative controls, respectively. The repaired blocks were cut into sticks using a precision grinding machine. The specimens were tested for tensile fracture and the µTBS values were calculated. Surface characteristics were assessed using scanning electron microscopy. AO-PA-UA (62.6 MPa) showed a 20% increase in µTBS compared to the NC (50.2 MPa), which proved to be the most significant. This was followed by SB-EDTA-UA (58.9 MPa) with an increase of 15%. In addition to AO-PA-UA, SB-EDTA-UA could also be a viable alternative in the RBC repair protocol.
Identifiants
pubmed: 37511327
pii: ijms241411568
doi: 10.3390/ijms241411568
pmc: PMC10380324
pii:
doi:
Substances chimiques
Composite Resins
0
Aluminum Oxide
LMI26O6933
Sodium Bicarbonate
8MDF5V39QO
Edetic Acid
9G34HU7RV0
Dental Materials
0
Resin Cements
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : New National Excellence Program of the Ministry for Innovation and Technology from the Source of the National Research, Development and Innovation Fund, Hungary
ID : ÚNKP-22-5-PTE-1733
Organisme : Hungarian Academy of Sciences, Bolyai János Research Scholarship
ID : BO/713/20/5
Organisme : Research Fund of University of Pécs Medical School, Hungary
ID : PTE-ÁOK-KA-2020/24
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