A1 Refereed original research article in a scientific journal
Adhesive sonic agitation improves bonding durability to class-II cavity preparation
Authors: Awad Mohamed M, Alhalabi Feras, Bamuqadm Mohamed, Alhoti Abdulmalik, Almasaad Abdulilah, Robiaan Ali, Almahdy Ahmed, Alrahlah Ali, Ahmed Mohammed H
Publisher: SPRINGER
Publication year: 2023
Journal: Odontology
Journal name in source: ODONTOLOGY
Journal acronym: ODONTOLOGY
Number of pages: 11
ISSN: 1618-1247
eISSN: 1618-1255
DOI: https://doi.org/10.1007/s10266-022-00751-3
Web address : https://link.springer.com/article/10.1007/s10266-022-00751-3
Abstract
The purpose of this study was to evaluate the effect of adhesive sonic agitation on resin-dentin micro-tensile bond strength (mu TBS) and interfacial morphology at the gingival wall of class-II cavity preparation. Seventy-two molars with prepared class-II cavities were divided into six groups (n = 12) according to the bonding mode; etch-and-rinse (E&R) or self-etch (SE) and application protocol of the universal adhesive (UA) employed (Clearfil Universal Bond Quick, Kuraray Noritake); following the manufacturer instructions (MI), manual agitation for 20 s (20s), or sonic agitation for 20 s using a modified sonic micro-brush mounted on EndoActivator device, Dentsply Sirona, (sonic). Restored teeth were sectioned into resin-dentin beams and slaps and mu TBS was evaluated at 1 week (1w) and after thermocycling (10k). mu TBS data were analyzed using the linear mixed-effects modeling with specific contrast (p < 0.05). The resin-dentin interfacial morphology was evaluated using a scanning electron microscope. Adhesive sonic agitation resulted in significantly higher mu TBS means in both E&R and SE modes, compared to MI group. The mu TBS of MI group showed significant reduction upon aging when applied in SE mode. Sonic agitation was associated with enhanced adhesive infiltration into dentin specially in E&R mode. Sonic agitation of UA using modified sonic micro-brush attached to EndoActivator device significantly improved the resin-dentin mu TBS and interfacial morphology at the gingival wall of class-II cavity preparation.
The purpose of this study was to evaluate the effect of adhesive sonic agitation on resin-dentin micro-tensile bond strength (mu TBS) and interfacial morphology at the gingival wall of class-II cavity preparation. Seventy-two molars with prepared class-II cavities were divided into six groups (n = 12) according to the bonding mode; etch-and-rinse (E&R) or self-etch (SE) and application protocol of the universal adhesive (UA) employed (Clearfil Universal Bond Quick, Kuraray Noritake); following the manufacturer instructions (MI), manual agitation for 20 s (20s), or sonic agitation for 20 s using a modified sonic micro-brush mounted on EndoActivator device, Dentsply Sirona, (sonic). Restored teeth were sectioned into resin-dentin beams and slaps and mu TBS was evaluated at 1 week (1w) and after thermocycling (10k). mu TBS data were analyzed using the linear mixed-effects modeling with specific contrast (p < 0.05). The resin-dentin interfacial morphology was evaluated using a scanning electron microscope. Adhesive sonic agitation resulted in significantly higher mu TBS means in both E&R and SE modes, compared to MI group. The mu TBS of MI group showed significant reduction upon aging when applied in SE mode. Sonic agitation was associated with enhanced adhesive infiltration into dentin specially in E&R mode. Sonic agitation of UA using modified sonic micro-brush attached to EndoActivator device significantly improved the resin-dentin mu TBS and interfacial morphology at the gingival wall of class-II cavity preparation.
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