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Influence of ethanol on dentin roughness, surface free energy, and interaction between AH Plus and root dentin
Pantoja, Carlos Augusto de Morais Souto; Silva, Diogo Henrique da; Soares, Adriana de Jesus; Ferraz, Caio Cezar Randi; Gomes, Brenda Paula Figueiredo de Almeida; Zaia, Alexandre Augusto; Almeida, José Flávio Affonso de.
  • Pantoja, Carlos Augusto de Morais Souto; Universidade Estadual de Campinas - Unicamp. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Silva, Diogo Henrique da; Universidade Estadual de Campinas - Unicamp. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Soares, Adriana de Jesus; Universidade Estadual de Campinas - Unicamp. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Ferraz, Caio Cezar Randi; Universidade Estadual de Campinas - Unicamp. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Gomes, Brenda Paula Figueiredo de Almeida; Universidade Estadual de Campinas - Unicamp. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Zaia, Alexandre Augusto; Universidade Estadual de Campinas - Unicamp. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
  • Almeida, José Flávio Affonso de; Universidade Estadual de Campinas - Unicamp. Piracicaba Dental School. Department of Restorative Dentistry. Piracicaba. BR
Braz. oral res. (Online) ; 32: e33, 2018. graf
Article in English | LILACS | ID: biblio-889462
ABSTRACT
Abstract This study aimed to evaluate the influence of different ethanol concentrations on dentin roughness, surface free energy, and contact angle between AH Plus and the root canal dentin. One hundred human maxillary anterior teeth were split longitudinally and 200 dentin specimens were polished to make the surface flatter and smoother. An acrylic bar was positioned between two dentin specimens and impression material was added to create a block, simulating an instrumented root canal space. Specimens were removed from the mold and cleaned in an ultrasonic bath for 10 min. Thereafter, dentin specimens were divided into four groups (n = 50) according to the drying methods used a) wet vacuum only, b) paper points vacuum + absorbent paper points, c) 70% alcohol 70% alcohol (1 min) + vacuum + absorbent paper points, and d) 100% alcohol 100% alcohol (1 min) + vacuum + absorbent paper points. A rugosimeter and a goniometer were used to verify the roughness (Ra) and to measure the surface free energy and the contact angle between the AH Plus sealer and the root canal dentin. ANOVA and Tukey tests (α = 0.05) were used for statistical analysis. The 70% and 100% ethanol groups showed significantly decreased roughness as well as increased surface free energy in the root canal dentin when compared to the wet and paper point groups. In addition, ethanol significantly reduced the contact angle between the AH Plus sealer and the root canal dentin. Ethanol solutions (70% and 100%) provide better wettability of AH Plus sealer on dentin surfaces.
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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Tooth Root / Dentin / Ethanol / Epoxy Resins Limits: Humans Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas - Unicamp/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Tooth Root / Dentin / Ethanol / Epoxy Resins Limits: Humans Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Estadual de Campinas - Unicamp/BR