Degree of conversion and permeability of dental adhesives

Milena Cadenaro, Francesca Antoniolli, Salvatore Sauro, Franklin Chi Meng Tay, Roberto Di Lenarda, Carlo Prati, Matteo Biasotto, Luca Contardo, Lorenzo Breschi

Research output: Contribution to journalArticle

203 Citations (Scopus)

Abstract

The aim of this study was to analyse the extent of polymerization of different adhesive films in relation to their permeability. One adhesive of each class was investigated: OptiBond FL; One-Step; Clearfil Protect Bond; and Xeno III. Adhesive films were prepared and cured with XL-2500 (3M ESPE) for 20, 40 or 60 s. Polymerization kinetic curves of the adhesives tested were obtained with differential scanning calorimetry (DSC) and data were correlated with microhardness. The permeability of the adhesives under the same experimental conditions was evaluated on human extracted teeth connected to a permeability device and analysed statistically. The results showed that the extent of polymerization obtained from DSC exotherms was directly correlated with microhardness. An increased level of polymerization after prolonged light-curing was confirmed for all adhesives. Simplified adhesives exhibited a lower extent of polymerization and showed incomplete polymerization, even after 60 s. An inverse correlation was found between the degree of cure and the permeability. This study supports the hypothesis that the permeability of simplified adhesives is correlated with incomplete polymerization of resin monomers and the extent of light exposure. These adhesives may be rendered less permeable by using longer curing times than those recommended by the respective manufacturer.

Original languageEnglish (US)
Pages (from-to)525-530
Number of pages6
JournalEuropean Journal of Oral Sciences
Volume113
Issue number6
DOIs
StatePublished - Dec 1 2005

Fingerprint

Dental Cements
Adhesives
Permeability
Polymerization
Differential Scanning Calorimetry
Light
Tooth
Equipment and Supplies

Keywords

  • Degree of conversion
  • Dental bonding systems
  • Dentine
  • Permeability
  • Polymerization

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Cadenaro, M., Antoniolli, F., Sauro, S., Tay, F. C. M., Di Lenarda, R., Prati, C., ... Breschi, L. (2005). Degree of conversion and permeability of dental adhesives. European Journal of Oral Sciences, 113(6), 525-530. https://doi.org/10.1111/j.1600-0722.2005.00251.x

Degree of conversion and permeability of dental adhesives. / Cadenaro, Milena; Antoniolli, Francesca; Sauro, Salvatore; Tay, Franklin Chi Meng; Di Lenarda, Roberto; Prati, Carlo; Biasotto, Matteo; Contardo, Luca; Breschi, Lorenzo.

In: European Journal of Oral Sciences, Vol. 113, No. 6, 01.12.2005, p. 525-530.

Research output: Contribution to journalArticle

Cadenaro, M, Antoniolli, F, Sauro, S, Tay, FCM, Di Lenarda, R, Prati, C, Biasotto, M, Contardo, L & Breschi, L 2005, 'Degree of conversion and permeability of dental adhesives', European Journal of Oral Sciences, vol. 113, no. 6, pp. 525-530. https://doi.org/10.1111/j.1600-0722.2005.00251.x
Cadenaro, Milena ; Antoniolli, Francesca ; Sauro, Salvatore ; Tay, Franklin Chi Meng ; Di Lenarda, Roberto ; Prati, Carlo ; Biasotto, Matteo ; Contardo, Luca ; Breschi, Lorenzo. / Degree of conversion and permeability of dental adhesives. In: European Journal of Oral Sciences. 2005 ; Vol. 113, No. 6. pp. 525-530.
@article{807302f026af4fdba3d6afd57ce2f74d,
title = "Degree of conversion and permeability of dental adhesives",
abstract = "The aim of this study was to analyse the extent of polymerization of different adhesive films in relation to their permeability. One adhesive of each class was investigated: OptiBond FL; One-Step; Clearfil Protect Bond; and Xeno III. Adhesive films were prepared and cured with XL-2500 (3M ESPE) for 20, 40 or 60 s. Polymerization kinetic curves of the adhesives tested were obtained with differential scanning calorimetry (DSC) and data were correlated with microhardness. The permeability of the adhesives under the same experimental conditions was evaluated on human extracted teeth connected to a permeability device and analysed statistically. The results showed that the extent of polymerization obtained from DSC exotherms was directly correlated with microhardness. An increased level of polymerization after prolonged light-curing was confirmed for all adhesives. Simplified adhesives exhibited a lower extent of polymerization and showed incomplete polymerization, even after 60 s. An inverse correlation was found between the degree of cure and the permeability. This study supports the hypothesis that the permeability of simplified adhesives is correlated with incomplete polymerization of resin monomers and the extent of light exposure. These adhesives may be rendered less permeable by using longer curing times than those recommended by the respective manufacturer.",
keywords = "Degree of conversion, Dental bonding systems, Dentine, Permeability, Polymerization",
author = "Milena Cadenaro and Francesca Antoniolli and Salvatore Sauro and Tay, {Franklin Chi Meng} and {Di Lenarda}, Roberto and Carlo Prati and Matteo Biasotto and Luca Contardo and Lorenzo Breschi",
year = "2005",
month = "12",
day = "1",
doi = "10.1111/j.1600-0722.2005.00251.x",
language = "English (US)",
volume = "113",
pages = "525--530",
journal = "European Journal of Oral Sciences",
issn = "0909-8836",
publisher = "Blackwell Munksgaard",
number = "6",

}

TY - JOUR

T1 - Degree of conversion and permeability of dental adhesives

AU - Cadenaro, Milena

AU - Antoniolli, Francesca

AU - Sauro, Salvatore

AU - Tay, Franklin Chi Meng

AU - Di Lenarda, Roberto

AU - Prati, Carlo

AU - Biasotto, Matteo

AU - Contardo, Luca

AU - Breschi, Lorenzo

PY - 2005/12/1

Y1 - 2005/12/1

N2 - The aim of this study was to analyse the extent of polymerization of different adhesive films in relation to their permeability. One adhesive of each class was investigated: OptiBond FL; One-Step; Clearfil Protect Bond; and Xeno III. Adhesive films were prepared and cured with XL-2500 (3M ESPE) for 20, 40 or 60 s. Polymerization kinetic curves of the adhesives tested were obtained with differential scanning calorimetry (DSC) and data were correlated with microhardness. The permeability of the adhesives under the same experimental conditions was evaluated on human extracted teeth connected to a permeability device and analysed statistically. The results showed that the extent of polymerization obtained from DSC exotherms was directly correlated with microhardness. An increased level of polymerization after prolonged light-curing was confirmed for all adhesives. Simplified adhesives exhibited a lower extent of polymerization and showed incomplete polymerization, even after 60 s. An inverse correlation was found between the degree of cure and the permeability. This study supports the hypothesis that the permeability of simplified adhesives is correlated with incomplete polymerization of resin monomers and the extent of light exposure. These adhesives may be rendered less permeable by using longer curing times than those recommended by the respective manufacturer.

AB - The aim of this study was to analyse the extent of polymerization of different adhesive films in relation to their permeability. One adhesive of each class was investigated: OptiBond FL; One-Step; Clearfil Protect Bond; and Xeno III. Adhesive films were prepared and cured with XL-2500 (3M ESPE) for 20, 40 or 60 s. Polymerization kinetic curves of the adhesives tested were obtained with differential scanning calorimetry (DSC) and data were correlated with microhardness. The permeability of the adhesives under the same experimental conditions was evaluated on human extracted teeth connected to a permeability device and analysed statistically. The results showed that the extent of polymerization obtained from DSC exotherms was directly correlated with microhardness. An increased level of polymerization after prolonged light-curing was confirmed for all adhesives. Simplified adhesives exhibited a lower extent of polymerization and showed incomplete polymerization, even after 60 s. An inverse correlation was found between the degree of cure and the permeability. This study supports the hypothesis that the permeability of simplified adhesives is correlated with incomplete polymerization of resin monomers and the extent of light exposure. These adhesives may be rendered less permeable by using longer curing times than those recommended by the respective manufacturer.

KW - Degree of conversion

KW - Dental bonding systems

KW - Dentine

KW - Permeability

KW - Polymerization

UR - http://www.scopus.com/inward/record.url?scp=28944451073&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28944451073&partnerID=8YFLogxK

U2 - 10.1111/j.1600-0722.2005.00251.x

DO - 10.1111/j.1600-0722.2005.00251.x

M3 - Article

VL - 113

SP - 525

EP - 530

JO - European Journal of Oral Sciences

JF - European Journal of Oral Sciences

SN - 0909-8836

IS - 6

ER -