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Physicochemical Properties and Interfacial Adaptation of Root Canal Sealers
Cañadas, Piedad S.; Berástegui, Ester; Gaton-Hernández, Patrícia; Silva, Léa A. B.; Leite, Giselle A.; Silva, Roberto S..
  • Cañadas, Piedad S.; University of Barcelona. School of Dentistry. Department of Endodontics. Barcelona. ES
  • Berástegui, Ester; University of Barcelona. School of Dentistry. Department of Endodontics. Barcelona. ES
  • Gaton-Hernández, Patrícia; University of Barcelona. School of Dentistry. Department of Endodontics. Barcelona. ES
  • Silva, Léa A. B.; University of Barcelona. School of Dentistry. Department of Endodontics. Barcelona. ES
  • Leite, Giselle A.; University of Barcelona. School of Dentistry. Department of Endodontics. Barcelona. ES
  • Silva, Roberto S.; University of Barcelona. School of Dentistry. Department of Endodontics. Barcelona. ES
Braz. dent. j ; 25(5): 435-441, Sep-Oct/2014. tab, graf
Article in English | LILACS | ID: lil-731060
ABSTRACT
This study compared the physicochemical properties and interfacial adaptation to canal walls of Endo-CPM-Sealer, Sealapex and Activ GP with the well-established AH Plus sealer. The following analyses were performed radiopacity, pH variation and solubility using samples of each material and scanning electron microscopy of root-filled bovine incisors to evaluate the interfacial adaptation. Data were analyzed by the parametric and no-parametric tests (α=0.05). All materials were in accordance with the ANSI/ADA requirements for radiopacity. Endo-CPM-Sealer presented the lowest radiopacity values and AH Plus was the most radiopaque sealer (p=0.0001). Except for ActiV GP, which was acidic, all other sealers had basic chemical nature and released hydroxyl ions. Regarding solubility, all materials met the ANSI/ADA recommendations, with no statistically significant difference between the sealers (p=0.0834). AH Plus presented the best adaptation to canal walls in the middle (p=0.0023) and apical (p=0.0012) thirds, while the sealers Activ GP and Endo-CPM-Sealer had poor adaptation to the canal walls. All sealers, except for ActiV GP, were alkaline and all of them fulfilled the ANSI/ADA requirements for radiopacity and solubility. Regarding the interfacial adaptation, AH Plus was superior to the others considering the adaptation to the bovine root canal walls.
RESUMO
Este estudo comparou as propriedades físico-químicas e a adaptação interfacial às paredes do canal dos cimentos Endo-CPM-Sealer, Sealapex e Activ GP com o bem estabelecido cimento AH Plus. As seguintes análises foram realizadas radiopacidade, variação de pH e de solubilidade utilizando amostras de cada material, e microscopia eletrônica de varredura utilizando incisivos bovinos obturados para avaliar a adaptação interfacial. Os dados foram analisados utilizando testes paramétricos e não-paramétricos (α=0,05). Todos os materiais estavam de acordo com os requerimentos da ANSI/ADA para radiopacidade, sendo que o Endo-CPM-Sealer apresentou os menores valores de radiopacidade e o AH Plus foi o cimento mais radiopaco (p=0,0001). Exceto o Activ GP, que foi ácido, todos os outros cimentos apresentaram natureza química básica e liberaram íons hidroxila. Com relação à solubilidade, todos os materiais estavam de acordo com as recomendações da ANSI /ADA, sem diferença significante entre os cimentos (p=0,0834). O AH Plus apresentou a melhor adaptação às paredes do canal nos terços médio (p=0,0023) e apical (p=0,0012), enquanto que os cimentos Activ GP e Endo-CPM-Sealer apresentaram uma pobre adaptação às paredes do canal. Em conclusão, todos os cimentos, exceto o Activ GP, foram alcalinos e todos preencheram os requerimentos da ANSI/ADA para radiopacidade e solubilidade. Com relação à adaptação interfacial, o AH Plus foi superior aos demais para adaptação às paredes do canal radicular de incisivos bovinos.
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Full text: Available Index: LILACS (Americas) Main subject: Breast Neoplasms / Tumor Cells, Cultured / Dextrans / Angiogenesis Inhibitors / Growth Inhibitors / Antineoplastic Agents Type of study: Prognostic study Limits: Animals / Female / Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2014 Type: Article Affiliation country: Spain Institution/Affiliation country: University of Barcelona/ES

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Full text: Available Index: LILACS (Americas) Main subject: Breast Neoplasms / Tumor Cells, Cultured / Dextrans / Angiogenesis Inhibitors / Growth Inhibitors / Antineoplastic Agents Type of study: Prognostic study Limits: Animals / Female / Humans Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2014 Type: Article Affiliation country: Spain Institution/Affiliation country: University of Barcelona/ES