Microleakage between endodontic temporary restorative materials placed at different times

The purpose of this study was to compare the sealing abilities of four endodontic temporary restorative materials using a methylene blue dye penetration test under dynamic loading. Standardized access cavities were prepared in forty-four intact human permanent molar teeth, and the cavities were restored with Caviton, MD-Temp, IRM, or ZOE. After thermocycling, an intermittent load of 98 N at 1 Hz was applied for 1,000 cycles to the long axis of the functional cusp of each of the teeth, which were immersed in a 1% methylene blue solution. The teeth were split in half, and the linear depth of dye penetration was evaluated according to the criteria. The results were analyzed using one-way ANOVA (p = 0.05) and Duncan' s multiple range test. The results demonstrated that Caviton and MD-Temp showed significantly lower microleakage than IRM and ZOE. It was concluded that Caviton and MD-Temp exhibited better sealing ability than IRM and ZOE under dynamic loading. [J Kor Acad Cons Dent 33(3):198-203, 2008]

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“…A similar finding was noted in previous studies 18,19) . This was due to a property of the hygroscopic material, which tends to absorb fluids.…”

Section: ⅳ Discussionsupporting

confidence: 92%

Microleakage of endodontic temporary restorative materials under dynamic loading

Jung

Young-Sin

Lee

et al. 2008

J Korean Acad Conserv Dent

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“…Hydraulic temporary sealing materials are based on calcium sulfate: they set upon contact with saliva in the oral cavity. During setting, the materials begin to chemically react and adhere to dentin as they undergo linear hygroscopic expansion like plaster, thereby resulting in good sealing ability [1][2][3][4][5] . However, as water gradually permeates into the material, the setting time will be extended.…”

Section: Introductionmentioning

confidence: 99%

Setting properties and sealing ability of hydraulic temporary sealing materials

Ogura¹,

Katsuumi²

2008

Dent. Mater. J.

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This study sought to investigate the setting progress and sealing ability of hydraulic temporary sealing materials used in endodontic treatment: Lumicon, Caviton, and HY-Seal. To evaluate setting progress, the materials were filled into glass tubes with one end sealed and immersed in water. After immersion, a measurement apparatus was inserted from the nonimmersed end and the set area was determined by subtracting the unset area from the sample thickness. To evaluate sealing ability, materials were filled into glass tubes and divided into four groups based on different immersion times. Thermal cycling and dye penetration were performed. At 7 days, the setting depths of HY-Seal and Caviton were almost equivalent to full sample thickness, while that of Lumicon was only half of full sample thickness (p<0.01). On sealing ability, Lumicon ranked the highest followed by Caviton, whereas HY-Seal was unstable (p<0.01). These results suggested that there was no correlation between setting progress and sealing ability.

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“…These latter two materials are frequently used as temporary restorations either alone or in combination such as when a so-called "double seal" 50 is used -in such cases, Cavit is placed as an underlying material within the pulp chamber and then IRM is placed as the "external" material. [51][52][53] Some operators may use Cavit in conjunction with a GIC material in a similar manner with the GIC being used as the overlying interim restoration.…”

Section: Literature Reviewmentioning

confidence: 99%

Interim and temporary restoration of teeth during endodontic treatment

Jensen

Abbott

Salgado

2007

Australian Dental Journal

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One of the main aims of endodontic treatment is to eliminate micro-organisms from within the root canal system. A further aim is to prevent the ingress of any further bacteria during and after treatment. These aims are usually achieved by various means and stages throughout the treatment process. Endodontic treatment is usually performed on teeth that have lost the integrity of the external coronal tooth structure which has allowed bacteria to enter the tooth and ultimately reach the pulp space. Further opening of the tooth occurs when an endodontic access cavity is made to allow treatment to be performed. Hence, there will always be a need for interim and temporary restoration of teeth undergoing endodontic treatment. Many different materials and techniques have been proposed, and these proposals have been based on many research reports. The purposes of this article are to review the literature regarding the use of interim and temporary restorations, and to provide recommendations regarding such restorations for clinicians to follow when providing endodontic treatment.

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Microleakage between endodontic temporary restorative materials placed at different times

Cited by 28 publications

References 20 publications

Microleakage of endodontic temporary restorative materials under dynamic loading

Microleakage of endodontic temporary restorative materials under dynamic loading

Setting properties and sealing ability of hydraulic temporary sealing materials

Interim and temporary restoration of teeth during endodontic treatment

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