Effects of different deproteinizing agents on topographic features of enamel and shear bond strength - An in vitro study
| Autor: | Abhay Kumar Jain, Akram Ansari, Yogesh Garg, Santy Panchal |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
050402 sociology
Scanning electron microscope Orthodontics phosphoric acid shear bond strength 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine 0504 sociology Adhesive remnant index In vitro study Phosphoric acid Enamel paint Acid etching 05 social sciences 030206 dentistry deproteinization scanning electron microscope Shear bond lcsh:RK1-715 chemistry visual_art Sodium hypochlorite lcsh:Dentistry visual_art.visual_art_medium Original Article adhesive remnant index Nuclear chemistry |
| Zdroj: | Journal of Orthodontic Science, Vol 8, Iss 1, Pp 17-17 (2019) Journal of Orthodontic Science |
| ISSN: | 2278-0203 |
| Popis: | OBJECTIVES: To evaluate and compare the effect of different enamel deproteinizing agents on topographic features of enamel and shear bond strength before acid etching. MATERIALS AND METHOD: In total, 120 sound human maxillary premolars were taken and divided into three groups: Group 1 control (37% phosphoric acid (H3PO4), Group 2, (5.25% Sodium Hypochlorite (NaOCl)+ 37% H3PO4, and Group 3, (10% Papain gel + 37% H3PO4). These groups were further divided into A and B subgroups. In subgroups 1A, 2A, and 3A (n30) topographic features were evaluated using Scanning electron microscope (SEM) at different magnifications. Insub-groups 1B, 2B, and 3B (n90) metal brackets were bonded with Transbond™ XT, and all the samples were subjected for Shear Bond Strength (SBS) evaluation using universal testing machineat a cross speed of 0.5 mm2/min. The failure mode was analyzed using adhesive remnant index (ARI). Statistical analysis was done using one-way ANOVA for the shear bond strength, and Kruskal-Wallis test followed by Mann-Whitneywas performed for ARI scores. RESULTS: SEM showed predominance of type 3 etching pattern in control Group (1A) and type 1 and type 2 in deproteinizedGroups (2A and 3A). Mean values of shear bond strength showed statistically significant differences between evaluated groups (P < 0.005). The lowest and highest shear bond strength was attributed to Group 1B (Control) and 3B (10% papain gel), respectively. Statisticallysignificant differences were noted for the mean ARI scores between control and deproteinized group (P < 0.05). CONCLUSION: 10% papain geland 5.25% NaOCl can be used as deproteinizing agents on enamel surface before acid etchingto enhance the shear bond strength of orthodontic brackets. |
| Databáze: | OpenAIRE |
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