In vitro effects of ice, skin refrigerant, and CO2 snow on intrapulpal temperature

Augsburger, Robert A.; Peters, Donald D.

doi:10.1016/s0099-2399(81)80124-0

Cited by 40 publications

(30 citation statements)

References 6 publications

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“…Some of these studies are specifically directed to the thermal diffusivity of restored teeth (Braden, 1964;Augsburger and Peters, 1981;Peters and Augsburger, 1981a;Tibbetts et al, 1976;Peters and Augsburger, 1981b). Braden (1964) showed, in an in vitro study concerning thermal diffusivity in restored teeth, that the thickness of a cement base is of more importance than its composition.…”

Section: Discussionmentioning

confidence: 99%

The Influence of Restorative Dental Materials on Heat Transmission in Human Teeth

et al. 1984

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Using the finite element method, we analyzed the temperature distribution and heat flow patterns in an axisymmetric tooth model. The models of an unrestored tooth and three teeth restored with different restorative materials were evaluated comparatively. The insulating ability of a calcium hydroxide cement base (Ca(OH)2) is low, which is inherent in its insufficient thermal and poor mechanical properties. In the given conditions, the Ca(OH)2 base reduces the temperature increase at the cement-dentin interface by 12.5% with respect to a restoration of amalgam only. By using a double base (Ca(OH)2 + polymer-modified zinc oxide-eugenol), the reduction is 21.9%. With respect to a sound tooth model, the presence of a double base in the restored tooth caused a temperature increase of only 0.1 degree C at the pulpo-dentinal junction. The thermal conductivity coefficient (lambda) of amalgam does not have any influence on the results of the calculations. The heat transfer coefficient (alpha) turned out to be an essential parameter in this mathematical model.

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Section: Discussionmentioning

confidence: 99%

The Influence of Restorative Dental Materials on Heat Transmission in Human Teeth

et al. 1984

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“…The in vivo temperature for Endo FrostTM is approximately −28°C whilst TFE is −18.5°C [28]. Some in vitro studies [19, 29] have shown that CO 2 produces a slightly larger decrease in temperature in a short period of time, especially with metallic restorations (such as amalgam and gold restorations) which allow better thermal conduction. Another in vitro study [24] reported that refrigerants such as TFE (or similar) decrease temperature by 1-2°C more than CO 2 within a 10-second timeframe.…”

Section: Pulp Testing Techniques and Effectivenessmentioning

confidence: 99%

“…The in vitro portion of the study also showed that CO 2 snow only decreased the pulp temperature by less than 2°C after five seconds of application—a change that is not sufficient to damage the pulp, as Frank et al [34] estimated that pulp tissue is only irreversibly damaged after being frozen at approximately −9°C. In vitro measurement of interproximal thermal conduction between natural teeth has shown that less than 0.25°C is transferred in this manner [29]. This is likewise insignificant and not a safety concern.…”

Section: Pulp Testing Techniques and Effectivenessmentioning

confidence: 99%

Dental Pulp Testing: A Review

Chen

Abbott

2009

International Journal of Dentistry

142

116

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Dental pulp testing is a useful and essential diagnostic aid in endodontics. Pulp sensibility tests include thermal and electric tests, which extrapolate pulp health from sensory response. Whilst pulp sensibility tests are the most commonly used in clinical practice, they are not without limitations and shortcomings. Pulp vitality tests attempt to examine the presence of pulp blood flow, as this is viewed as a better measure of true health than sensibility. Laser Doppler flowmetry and pulse oximetry are examples of vitality tests. Whilst the prospect is promising, there are still many practical issues that need to be addressed before vitality tests can replace sensibility tests as the standard clinical pulp diagnostic test. With all pulp tests, the results need to be carefully interpreted and closely scrutinised as false results can lead to misdiagnosis which can then lead to incorrect, inappropriate, or unnecessary treatment.

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“…DDM has decreased in popularity because of environmental concerns (13), and it has been replaced by other gases such as the mixture of propane, butane, and isobutane (Endo Frost [EF]; Roeko, Langenau, Germany). Concerns have been raised about possible damaging effects of cold testing agents to teeth, but studies have shown that they are safe (14)(15)(16)(17)(18).…”

mentioning

confidence: 99%

Evaluation of Accuracy, Reliability, and Repeatability of Five Dental Pulp Tests

Chen¹,

Abbott²

2011

Journal of Endodontics

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In vitro effects of ice, skin refrigerant, and CO2 snow on intrapulpal temperature

Cited by 40 publications

References 6 publications

The Influence of Restorative Dental Materials on Heat Transmission in Human Teeth

The Influence of Restorative Dental Materials on Heat Transmission in Human Teeth

Dental Pulp Testing: A Review

Evaluation of Accuracy, Reliability, and Repeatability of Five Dental Pulp Tests

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