Effects of enamel deproteinization with different application times on the shear bond strength of a self-etching primer: An in vitro study

Daou, Carla; Akl, Roula; Mati, Myriam; Kassis, Adib; Ghoubril, Joseph; Khoury, Elie

doi:10.1016/j.ortho.2021.05.002

Cited by 5 publications

(3 citation statements)

References 25 publications

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“…Because the monomers responsible for etching are also responsible for bonding, the depth of the demineralized zone corresponds to the penetration depth of the polymerized adhesive. As a consequence, there are no problems with insufficient penetration depth, which improves the quality of the bond and benefits the long-term treatment process [ 33 , 34 ].…”

Section: Discussionmentioning

confidence: 99%

Comparison of Bond Strength of Orthodontic Brackets Onto the Tooth Enamel of 120 Freshly Extracted Adult Bovine Medial Lower Incisors Using 4 Adhesives: A Resin-Modified Glass Ionomer Adhesive, a Composite Adhesive, a Liquid Composite Adhesive, and a One-Step Light-Cured Adhesive

et al. 2022

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Background This study aimed to compare the bond strength of orthodontic brackets onto the tooth enamel of 120 freshly extracted adult bovine medial lower incisors using 4 adhesives: a resin-modified glass ionomer adhesive, a composite adhesive, a liquid composite adhesive, and a one-step light-cured adhesive. Material/Methods The study group (120 freshly extracted bovine medial lower incisors) was divided into equal subgroups depending on the type of adhesive used to fix the brackets to the tooth enamel (n=30), and then according to the observation time (n=10). Orthodontic brackets were fixed onto the tooth enamel for 24 hours (T1), 3 months (T2), and 6 months (T3) using 4 types of adhesives: resin-modified glass ionomer adhesive Fuji Ortho LC, composite adhesive Transbond Plus Light Cure Band, flowable composite adhesive Transbond Supreme Low Viscosity, and a one-step light-cured adhesive GC Ortho Connect. Shear tests and fracture plane analyses were performed. Results Statistically significant differences at time T1 were noted in the comparison of shear stress values when brackets were fixed with GC Ortho Connect adhesive compared to other adhesives ( P <0.05), except for the Transbond Plus adhesive ( P >0.05). At time T3, significant statistical differences occurred between GC Fuji Ortho LC and the other 3 adhesives ( P <0.05). The fracture analysis showed that, regardless of the time function, adhesive-cohesive fractures without damage to the enamel were the most common for all the assessed materials. Conclusions Of the adhesives evaluated, GC Ortho Connect appears to be the most appropriate choice for bonding orthodontic brackets to the enamel surface.

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Section: Discussionmentioning

confidence: 99%

Comparison of Bond Strength of Orthodontic Brackets Onto the Tooth Enamel of 120 Freshly Extracted Adult Bovine Medial Lower Incisors Using 4 Adhesives: A Resin-Modified Glass Ionomer Adhesive, a Composite Adhesive, a Liquid Composite Adhesive, and a One-Step Light-Cured Adhesive

et al. 2022

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“…The premolars that were gathered included both maxillary and mandibular premolars, as well as first and second premolars. To reduce the biases brought on by the variation in mineralization and morphology of the teeth, it would have been desirable to collect only one type of tooth, however, this was nearly impossible due to the challenges faced during specimen collection [7].…”

Section: Discussionmentioning

confidence: 99%

Effect of bromelain enzyme versus Sodium hypochlorite on shear bond strength of resin composite to dentin using two adhesive systems

El-Laithy,

niazy,

Abdelhakim

2024

Egyptian Dental Journal

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Background: Proper bond strength of composite restoration contributes to endurance and survival; thus, dentin surface preparation for increased bond strengths is required.Objectives: This study is designed to assess the effect of bromelain enzyme and Sodium hypochlorite (NaOCl) on shear bond strength of resin composite to dentin using two adhesive systems; etch and rinse and self-etch.Subjects and methods: Sixty complete (caries-free) maxillary and mandibular premolar teeth from patients aged (25-45) were used in this in-vitro experimental study. It had to be removed for orthodontic purposes. The prepared premolars were allocated into two main groups of 30 specimens according to the pretreatment agent and the bonding system used. The pretreatment agent used for dentin was divided into 3 subgroups of 10 each. specimens each Bromelain (A1), sodium hypo chlorite (A2) and control group (A3). The type of bonding system used; in the first subgroup is the self-etch bonding system (B1). The second subgroup was the total-etch bonding system (B2). Both shear bond strength (SBS), micro SBS, ultra morphology. Results:Regarding the control group, the self-etch system (12.88±1.15) had a significantly higher value than the total-etch system (8.98±0.01) (p<0.001). Respecting NaOCl (10%), the totaletch system (24.58±2.31) had a significantly higher value than the self-etch system (15.46±2.30) (p<0.001). Concerning Bromelain, the total-etch system (27.50±2.31) had a significantly higher value than the self-etch system (18.38±2.41) (p<0.001). Conclusion:The prior treatment of premolar dentin with NaOCl and bromelain enzyme results in composite resins with similar SBS. In other words, after acid etching, bromelain, a safe solution with no side effects, may effectively dissolve the collagen network as effectively as NaOCl.

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“…Neste presente estudo indicou-se o hipoclorito de sódio à 5% como não alterando a resistência ao cisalhamento de bráquetes, tanto se utilizado o condicionamento ácido convencional quanto um adesivo autocondicionante. Em outros trabalhos foram evidenciadas essas mesmas limitações para o hipoclorito de sódio, não apontando aspectos suficientemente positivos para o seu uso (ONGKOWIDJAJA; SOEGIHARTO; PURBIATI, 2017;DAOU et al, 2021).…”

Section: Methodsunclassified

Testes de controle de qualidade realizados em comprimidos de hidroclorotiazida provenientes do Programa Farmácia Solidária de Maringá (PR)

González¹,

Freire²,

Bonassoli³

et al. 2023

Anais Do I Congresso Internacional Interdisciplinar Da Uningá: Resumos Expandidos

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O programa ‘Farmácia Solidária’ foi implementado em Maringá (PR) no ano de 2019, com objetivo de receber fármacos doados pela população e redistribuí-los por meio das UBS para quem necessite. O presente trabalho teve como objetivo avaliar por meio de testes físico-químicos oficiais, a qualidade de alguns comprimidos distribuídos no programa Farmácia Solidária. Foram analisados comprimidos gené ricos de hidroclorotiazida 25mg e comparados com a referência Clorana® 25mg, este adquirido em far mácia comercial de Maringá. Os testes realizados foram peso médio, dureza, friabilidade, desintegração, dissolução e doseamento. Os comprimidos testados apresentam valores dentro dos parâmetros descritos na Farmacopeia Brasileira 6.a edição.

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Effects of enamel deproteinization with different application times on the shear bond strength of a self-etching primer: An in vitro study

Cited by 5 publications

References 25 publications

Comparison of Bond Strength of Orthodontic Brackets Onto the Tooth Enamel of 120 Freshly Extracted Adult Bovine Medial Lower Incisors Using 4 Adhesives: A Resin-Modified Glass Ionomer Adhesive, a Composite Adhesive, a Liquid Composite Adhesive, and a One-Step Light-Cured Adhesive

Comparison of Bond Strength of Orthodontic Brackets Onto the Tooth Enamel of 120 Freshly Extracted Adult Bovine Medial Lower Incisors Using 4 Adhesives: A Resin-Modified Glass Ionomer Adhesive, a Composite Adhesive, a Liquid Composite Adhesive, and a One-Step Light-Cured Adhesive

Effect of bromelain enzyme versus Sodium hypochlorite on shear bond strength of resin composite to dentin using two adhesive systems

Testes de controle de qualidade realizados em comprimidos de hidroclorotiazida provenientes do Programa Farmácia Solidária de Maringá (PR)

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