Effect of thermocycling on the shear bond strength of a cyanoacrylate orthodontic adhesive

Bishara, Samir E.; Ajlouni, Raed; Laffoon, John F.

doi:10.1067/mod.2003.1

Cited by 68 publications

(44 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, it is equally important to establish whether these changes would also affect the physical or mechanical properties of dental composites. On this note, Bishara et al 10) suggested that thermocycling should be part of the testing protocol for all new composites that await to be tested. Thermocycling is an in vitro process through which the test material and/or the tooth are subjected to large temperature extremes compatible with the oral cavity 11) .…”

Section: Introductionmentioning

confidence: 99%

Effects of thermocycling on the degree of cure of two lingual retainer composites

et al. 2010

View full text Add to dashboard Cite

The aim of this study was to evaluate the effects of thermocycling on the degree of cure (DC) and water sorption behavior of two lingual retainer composites. A total of 50 composite specimens, 5 mm diameter and 2 mm height, were prepared using Light Cure Retainer ® (LCR) (Reliance) and Transbond Lingual Retainer ® (TLR) (3M Unitek). After 40-second curing with a halogen light and after 24-hour water storage, the composite specimens were subjected to different thermocycling regimes. Absorbance peaks to monitor the DC were recorded using Fourier transform infrared (FTIR) spectroscopy, while water sorption was calculated in µg/mm 3 . On DC, significant differences among the different thermocycling regimes were observed only for the TLR specimens (p<0.05). On water sorption behavior, an increase in the number of thermal cycles resulted in increased water sorption for both composites, but the statistical differences in these groups were not significant. On the effect of thermocycling up to 20,000 cycles, present findings showed that LCR was less affected than TLR. Further, LCR exhibited higher DC and lower water sorption values than TLR after thermal cycling.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of thermocycling on the degree of cure of two lingual retainer composites

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Air temperature, humidity, and air velocity when breathing can also alter resting mouth temperature. Bishara et al 22 have suggested that thermal cycling should be a part of the testing protocol of new adhesives. Daub et al 9 compared the shear bond strengths of direct bonding (Transbond XT) and indirect bonding (Transbond XT/Sondhi Rapid Set) techniques after thermocycling.…”

Section: Discussionmentioning

confidence: 99%

Effects of direct and indirect bonding techniques on bond strength and microleakage after thermocycling

et al. 2009

View full text Add to dashboard Cite

Objective: The purpose of this study was to compare the shear bond strength (SBS) of brackets and microleakage of a tooth-adhesive-bracket complex bonded with a direct and an indirect bonding technique after thermocycling. Methods: Fifty non-carious human premolars were divided into two equal groups. In the direct bonding group a light-cured adhesive and a primer (Transbond XT) was used. In the indirect-bonding group, a light-cured adhesive (Transbond XT) and chemical-cured primer (Sondhi Rapid Set) were used. After polymerization, the teeth were kept in distilled water for 24 hours and thereafter subjected to thermal cycling (500 cycles). For the microleakage evaluation, 10 teeth from each group were further sealed with nail varnish, stained with 0.5% basic fuchsin for 24 hours, and examined under a stereomicroscope. Fifteen teeth from each group were used for SBS testing with the universal testing machine and adhesive remnant index (ARI) evaluation. Data were analyzed using the Mann-Whitney U test, Chi-square test, and Fisher's exact test. Results: There were no statistical differences on SBS and microleakage between the two bonding techniques. The indirect bonding group had a significantly lower ARI score. Bracket failures were obtained between enamel-resin interfaces.

show abstract

“…(13) La importancia de realizar este proceso es que permite simular el comportamiento clínico de los materiales dentales como las resinas. (16) En el presente estudio se efectuaron 500 ciclos de termociclado, similar a los estudios realizados por autores como Bishara y col (13) y Daub y col. (9) El (24) , Oliveira y col (25) encontraron valores promedio de resistencia al cizallamiento de 8.31 MPa y 10.61 MPa respectivamente para el cemento OrthoCem, similares a los encontrados en esta investigación. Esta discrepancia entre ambos cementos puede deberse a que el cemento OrthoCem presenta el primer y el cemento en la misma jeringa a diferencia del Transbond TM XT.…”

Section: Discussionunclassified

“…(12) diferentes temperaturas en la cavidad oral. Por ese motivo, distintos autores (7)(8)(9)(13)(14)(15)(16) recomiendan realizar en sus estudios el termociclado, un proceso in vitro que consiste en exponer las muestras a temperaturas extremas para simular las condiciones de la cavidad oral y envejecer la muestra. (8,15) Por ello, el propósito de este estudio fue comparar in vitro, en función al termociclado, la resistencia al cizallamiento y el índice adhesivo remanente (ARI) utilizando los cementos Transbond TM XT (3M Unitek, Monrovia, California, USA) y OrthoCem (FGM, Joinville, Brazil) en dientes de bovino.…”

Section: Marco Teóricounclassified

“…Se evaluó el índice adhesivo remanente según Årtun y Bergland (13) de acuerdo a los grados, siendo Grado 0: Sin adhesivo en el diente; Grado 1: Menos de la mitad del adhesivo permanece en el diente; Grado 2: Más de la mitad del adhesivo permanece en el diente y Grado 3: Todo el adhesivo permanece en el diente con una clara impresión de la malla del bracket. Para esta evaluación fue utilizado el Microscopio Digital Dino-…”

Section: íNdice Adhesivo Remanenteunclassified

See 1 more Smart Citation

Resistencia al cizallamiento e indice adhesivo remanente (ARI) de dos cementos ortodónticos fotopolimerizables antes y después del termociclado

Mejía¹,

Jimena²

View full text Add to dashboard Cite

Effect of thermocycling on the shear bond strength of a cyanoacrylate orthodontic adhesive

Cited by 68 publications

References 16 publications

Effects of thermocycling on the degree of cure of two lingual retainer composites

Effects of thermocycling on the degree of cure of two lingual retainer composites

Effects of direct and indirect bonding techniques on bond strength and microleakage after thermocycling

Resistencia al cizallamiento e indice adhesivo remanente (ARI) de dos cementos ortodónticos fotopolimerizables antes y después del termociclado

Contact Info

Product

Resources

About