Evaluation of enamel loss by scanning electron microscopy after debonding brackets place with four different adhesives
| Autor: | Jacqueline Adelina Rodríguez-Chávez, Abigailt Flores-Ledesma, Fernando Javier Aguilar-Pérez, Jesús Arenas-Alatorre, Hugo M. Flores-Ruiz |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Dental Stress Analysis
Histology Materials science Orthodontic Brackets Surface Properties Scanning electron microscope Dentistry 02 engineering and technology 03 medical and health sciences 0302 clinical medicine Adhesives Materials Testing Adhesive remnant index medicine Humans Dental Enamel Instrumentation Universal testing machine Enamel paint business.industry Dental Bonding 030206 dentistry 021001 nanoscience & nanotechnology Tooth enamel Resin Cements Medical Laboratory Technology medicine.anatomical_structure Bonding strength visual_art Microscopy Electron Scanning visual_art.visual_art_medium Adhesive Anatomy 0210 nano-technology business Transbond MIP |
| Zdroj: | Microscopy Research and Technique. 84:912-920 |
| ISSN: | 1097-0029 1059-910X |
| Popis: | The clinically adequate shear bond strengths (SBS) should be from 2.8 to 10 MPa. The aim of this research is to observe tooth enamel loss through a scanning electron microscope (SEM) during the debonding of braces of four adhesive systems. Then, 100 premolars were used in 4 groups of 25 specimens each, for Transbond MIP (G1), Enlight (G2), Stylus (G3), and Transbond Plus SEP (G4). The research was done under the NOM ISO/TS 11405:2015. Gemini 3M were placed under the manufacturer's recommendations. The SBS test was done at 24 hr in an Instron electromechanical universal testing machine at 1 mm/1 min. Adhesive remnant index (ARI) was measured, all of the brackets where examined in the SEM. For the shear bonding strength G1 = 10.09 ± 2.73 MPa, G2 = 9.27 ± 3.99 MPa, G3 = 7.83 ± 4.46 MPa, and G4 = 6.40 ± 2.85 MPa statistically significant differences were found when comparing the four groups (p = .002). In the Tukey post hoc test, G1 versus G4 and G2 versus G4, statistically significant differences were found. For the ARI a value of 1 in 46%, followed by a value of 2 in 38%, a value of 3 in 13% and a value of 0 in 3% of the total samples, finding statistically significant differences (p < .001). In relation to the tooth enamel loss due to SBS, statistically significant differences were found (p = .326). G1 and G4 had not statistically significant differences. Even though our results concur with the appropriate clinical values, we observed tooth enamel loss with Transbond Plus SEP and Stylus. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text