A Comparative Study of Microleakage through Enamel and Cementum after Laser Er:YAG Instrumentation in Class V Cavity Obturations, Using Scanning Electron Microscopy
| Autor: | Natalia Barciela Castro, José González Bahillo, Manuel Ruiz Piñón, Purificación Varela Patiño, Fernando Magán Muñoz, Javier Rodríguez Nogueira, Marta Bahillo Varela, Benjamín Martín Biedma |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
Scanning electron microscope Biomedical Engineering Dentistry In Vitro Techniques Random Allocation stomatognathic system Microscopy medicine Humans Cementum Dental Enamel Leakage (electronics) Dental Cementum Dental Leakage Enamel paint business.industry Lasers Tooth enamel stomatognathic diseases medicine.anatomical_structure visual_art Microscopy Electron Scanning visual_art.visual_art_medium Surgery Dental cementum Dental Cavity Preparation business Biomedical engineering |
| Zdroj: | Journal of Clinical Laser Medicine & Surgery. 20:197-201 |
| ISSN: | 1557-8089 1044-5471 |
| DOI: | 10.1089/104454702760230519 |
| Popis: | The purpose of this study was to use scanning electron microscopy (SEM) in order to compare the surfaces of cavities prepared using laser with those prepared conventionally, and to measure the degree of leakage through both enamel and cementum.We prepared 135 class V cavities and divided them randomly into three groups: laser-treated (group A), laser-treated, and acid-etched (group B) and rotary instrumented (group C).On analyzing the tooth enamel, the amount of leakage was found to be similar in groups A and B, whilst the samples in the group C were more prone to leakage. On analyzing the cementum, the group C samples appeared to display surfaces that were more conducive to the adhesion of the materials used in obturation (although this difference was not strictly significant), and this might have provoked the relatively low levels of leakage.The use of acid etching in conjunction with both conventional and laser cavity preparation improves the adhesion of the materials used in obturation to enamel surfaces. |
| Databáze: | OpenAIRE |
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