Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial Aging
The success and longevity of a resin composite restoration is determined by its good bonding to the tooth structure, with the adhesion being a challenge to dentin due to its complexity and structural heterogeneity. The present study aimed to compare the adhesive strength of dentin conditioned with 1...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/20/4291 |
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| author | Esther Alcántara-Obispo Flor Santander-Rengifo Marysela Ladera-Castañeda Carlos López-Gurreonero Antonieta Castro Pérez-Vargas Alberto Cornejo-Pinto Luis Cervantes-Ganoza César Cayo-Rojas |
| author_facet | Esther Alcántara-Obispo Flor Santander-Rengifo Marysela Ladera-Castañeda Carlos López-Gurreonero Antonieta Castro Pérez-Vargas Alberto Cornejo-Pinto Luis Cervantes-Ganoza César Cayo-Rojas |
| author_sort | Esther Alcántara-Obispo |
| collection | DOAJ |
| description | The success and longevity of a resin composite restoration is determined by its good bonding to the tooth structure, with the adhesion being a challenge to dentin due to its complexity and structural heterogeneity. The present study aimed to compare the adhesive strength of dentin conditioned with 18% ethylenediaminetetraacetic acid (EDTA) versus 35% phosphoric acid (H<sub>3</sub>PO<sub>4</sub>) in human premolars. Materials and Methods: This in vitro experimental study was performed on 40 human premolars. The occlusal thirds were sectioned and randomly placed into four groups according to the type of dentin conditioning: Group 1 (control), Group 2 (18% EDTA), Group 3 (35% H<sub>3</sub>PO<sub>4</sub>) and Group 4 (18% EDTA plus 35% H<sub>3</sub>PO<sub>4</sub>). Then, 10,000 thermocycles between 5 +/− 2 °C and 55 +/− 2 °C were applied. Adhesive strength was tested by shearing with a digital universal testing machine at a crosshead speed of 0.75 mm/min. The values obtained were analyzed in megapascals (MPa). The mean and standard deviation were used as measures of central tendency and dispersion. In addition, a one-factor intergroup ANOVA test was applied with Tukey’s post hoc test considering a significance level of <i>p</i> < 0.05. Results: The 18% EDTA and 18% EDTA plus 35% H<sub>3</sub>PO<sub>4</sub> showed significantly higher adhesive strength compared to the control group that did not receive dentin conditioning (<i>p</i> = 0.047 and <i>p</i> < 0.001, respectively). However, the group conditioned with 18% EDTA did not present significant differences compared to the group conditioned with 35% H<sub>3</sub>PO<sub>4</sub> (<i>p</i> = 0.997). In addition, the group conditioned with 18% EDTA plus 35% H<sub>3</sub>PO<sub>4</sub> showed significantly higher adhesive strength compared to the groups conditioned with 18% EDTA (<i>p</i> = 0.002) and 35% H<sub>3</sub>PO<sub>4</sub> (<i>p</i> = 0.001). Conclusion: The adhesion of bulk fill resin composite to dentin was favorable when preconditioning was performed using 18% EDTA followed by 35% H<sub>3</sub>PO<sub>4</sub>. In contrast, when both etchants were used separately, the bulk fill resin composite showed similar bond strength values in both cases, but significantly lower compared to their sequential application. |
| first_indexed | 2024-03-09T19:33:21Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T19:33:21Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-253364792401484987f2771bb35ebcdd2023-11-24T02:06:37ZengMDPI AGPolymers2073-43602022-10-011420429110.3390/polym14204291Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial AgingEsther Alcántara-Obispo0Flor Santander-Rengifo1Marysela Ladera-Castañeda2Carlos López-Gurreonero3Antonieta Castro Pérez-Vargas4Alberto Cornejo-Pinto5Luis Cervantes-Ganoza6César Cayo-Rojas7School of Stomatology, Universidad Privada San Juan Bautista, Lima 15066, PeruAcademic Program of Dentistry, Universidad Peruana de Ciencias Aplicadas, Lima 15066, PeruFaculty of Dentistry and Postgraduate School, “Grupo de Investigación Salud y Bienestar Global”, Universidad Nacional Federico Villarreal, Lima 15001, PeruSchool of Stomatology, Universidad Científica del Sur, Lima 15067, PeruFaculty of Dentistry and Postgraduate School, “Grupo de Investigación Salud y Bienestar Global”, Universidad Nacional Federico Villarreal, Lima 15001, PeruSchool of Stomatology, Universidad Privada San Juan Bautista, Lima 15066, PeruFaculty of Stomatology, Universidad Inca Garcilaso de la Vega, Lima 15084, PeruSchool of Stomatology, Universidad Privada San Juan Bautista, Lima 15066, PeruThe success and longevity of a resin composite restoration is determined by its good bonding to the tooth structure, with the adhesion being a challenge to dentin due to its complexity and structural heterogeneity. The present study aimed to compare the adhesive strength of dentin conditioned with 18% ethylenediaminetetraacetic acid (EDTA) versus 35% phosphoric acid (H<sub>3</sub>PO<sub>4</sub>) in human premolars. Materials and Methods: This in vitro experimental study was performed on 40 human premolars. The occlusal thirds were sectioned and randomly placed into four groups according to the type of dentin conditioning: Group 1 (control), Group 2 (18% EDTA), Group 3 (35% H<sub>3</sub>PO<sub>4</sub>) and Group 4 (18% EDTA plus 35% H<sub>3</sub>PO<sub>4</sub>). Then, 10,000 thermocycles between 5 +/− 2 °C and 55 +/− 2 °C were applied. Adhesive strength was tested by shearing with a digital universal testing machine at a crosshead speed of 0.75 mm/min. The values obtained were analyzed in megapascals (MPa). The mean and standard deviation were used as measures of central tendency and dispersion. In addition, a one-factor intergroup ANOVA test was applied with Tukey’s post hoc test considering a significance level of <i>p</i> < 0.05. Results: The 18% EDTA and 18% EDTA plus 35% H<sub>3</sub>PO<sub>4</sub> showed significantly higher adhesive strength compared to the control group that did not receive dentin conditioning (<i>p</i> = 0.047 and <i>p</i> < 0.001, respectively). However, the group conditioned with 18% EDTA did not present significant differences compared to the group conditioned with 35% H<sub>3</sub>PO<sub>4</sub> (<i>p</i> = 0.997). In addition, the group conditioned with 18% EDTA plus 35% H<sub>3</sub>PO<sub>4</sub> showed significantly higher adhesive strength compared to the groups conditioned with 18% EDTA (<i>p</i> = 0.002) and 35% H<sub>3</sub>PO<sub>4</sub> (<i>p</i> = 0.001). Conclusion: The adhesion of bulk fill resin composite to dentin was favorable when preconditioning was performed using 18% EDTA followed by 35% H<sub>3</sub>PO<sub>4</sub>. In contrast, when both etchants were used separately, the bulk fill resin composite showed similar bond strength values in both cases, but significantly lower compared to their sequential application.https://www.mdpi.com/2073-4360/14/20/4291phosphoric acidethylenediaminetetraacetic acidresin compositebulk fill resinadhesive strengthshearing |
| spellingShingle | Esther Alcántara-Obispo Flor Santander-Rengifo Marysela Ladera-Castañeda Carlos López-Gurreonero Antonieta Castro Pérez-Vargas Alberto Cornejo-Pinto Luis Cervantes-Ganoza César Cayo-Rojas Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial Aging Polymers phosphoric acid ethylenediaminetetraacetic acid resin composite bulk fill resin adhesive strength shearing |
| title | Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial Aging |
| title_full | Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial Aging |
| title_fullStr | Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial Aging |
| title_full_unstemmed | Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial Aging |
| title_short | Adhesive Strength in Dentin Conditioned with 18% Ethylenediaminetetraacetic Acid versus 35% Phosphoric Acid: In Vitro Study with 1-Year Artificial Aging |
| title_sort | adhesive strength in dentin conditioned with 18 ethylenediaminetetraacetic acid versus 35 phosphoric acid in vitro study with 1 year artificial aging |
| topic | phosphoric acid ethylenediaminetetraacetic acid resin composite bulk fill resin adhesive strength shearing |
| url | https://www.mdpi.com/2073-4360/14/20/4291 |
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