The effectiveness of using a patient simulator to teach light-curing skills

Price, Richard; Strassler, Howard E.; Price, Hannah Louise; Seth, Sachin; Lee, Chris

doi:10.14219/jada.2013.17

Cited by 38 publications

(37 citation statements)

References 44 publications

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“…The distance from the tip of the light guide in relation to the composite surface is an important factor influencing the irradiance achieved at the composite surface and can be controlled by the clinician in some situations (15,18,19). As the distance from the composite surface increases, a significant reduction on the irradiance reaching the composite can be expected due to the divergence of the beam from the tip of the light guide tip, as well as due to energy scattering as the light passes through the air (15,18,20).…”

Section: Discussionmentioning

confidence: 99%

Impact of Material Shade and Distance from Light Curing Unit Tip on the Depth of Polymerization of Composites

et al. 2017

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This study aimed to evaluate the effect of the composite shade and distance from the light-curing unit (LCU) tip on the irradiance reaching the bottom of composite disks and on the depth of polymerization. Composites of three shades (opaque -OXDC, bleach -BXL, and A2) were inserted into molds with 3-mm of thickness positioned over a spectrometer and photo-activated with the LCU (Bluephase) tip placed at 0 or 1 cm from the composite surface. The mean irradiance reaching the bottom of composite was recorded during the entire photo-activation (30 s). Specimens (2 x 2 x 4 mm) were polymerized and used to map the degree of conversion achieved in different depths from irradiated surface. Specimens were sectioned into slices that were positioned over the platform of the infrared microscope connected to the spectrometer to map the conversion. The conversion was measured in eight different depths every 500-µm. Increasing the distance of LCU tip reduced the irradiance only for A2. Interposing OXDC disks resulted in lowest values of irradiance and A2 the highest one. A tendency to decrease the conversion was observed towards the bottom of specimens for all experimental conditions, and the slope was more accentuated for OXDC. Differences among shades and distances from LCU tip were evident only beyond 1.5-2.0 mm of depth. In conclusion, both composite shade and distance from LCU tip might affect the light-transmission and depth of polymerization, while the effect of last was more pronounced.

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Section: Discussionmentioning

confidence: 99%

Impact of Material Shade and Distance from Light Curing Unit Tip on the Depth of Polymerization of Composites

et al. 2017

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“…65,75,76 When the curing light is used correctly, the dentist can significantly improve the amount of light they deliver to the restoration.…”

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confidence: 99%

Light curing in dentistry and clinical implications: a literature review

et al. 2017

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Contemporary dentistry literally cannot be performed without use of resin-based restorative materials. With the success of bonding resin materials to tooth structures, an even wider scope of clinical applications has arisen for these lines of products. Understanding of the basic events occurring in any dental polymerization mechanism, regardless of the mode of activating the process, will allow clinicians to both better appreciate the tremendous improvements that have been made over the years, and will also provide valuable information on differences among strategies manufacturers use to optimize product performance, as well as factors under the control of the clinician, whereby they can influence the longterm outcome of their restorative procedures.

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“…Therefore, it is proposed that the dentist, assistant and patient should use protective eyeglasses to provide the optimum protection. Using protective eyewear allows the user to have both hands free to manipulate the instruments and materials so that they can focus their attention on the tooth to which the light is directed, and deliver the intended amount of light to the resin (24).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Eye Protection Filters Used with Broad-Spectrum and Conventional LED Curing Lights

et al. 2017

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The high irradiance and the different emission spectra from contemporary light curing units (LCU) may cause ocular damage. This study evaluated the ability of 15 eye protection filters: 2 glasses, 1 paddle design, and 12 dedicated filters to block out harmful light from a monowave (HP-3M ESPE) and a broad-spectrum (Valo, Ultradent) LED LCU. Using the anterior sensor in the MARC-Patient Simulator (BlueLight Analytics) the irradiance that was delivered through different eye protection filters was measured three times. The LCUs delivered a similar irradiance to the top of the filter. The mean values of the light that passed through the filters as percent of the original irradiance were analyzed using two-way ANOVA followed by Tukey test (a= 0.05). The emission spectra from the LCUs and through the filters were also obtained. Two-way ANOVA showed that the interaction between protective filters and LCUs significantly influenced the amount of light transmitted (p< 0.001). Tukey test showed that the amount of light transmitted through the protective filters when using the HP-3M-ESPE was significantly greater compared to when using the Valo, irrespective of the protective filter tested. When using the HP-3M-ESPE, the Glasses filter allowed significantly more light through, followed by XL 3000, ORTUS, Google Professional, Gnatus filters. The Valo filter was the most effective at blocking out the harmful light. Some protective filters were less effective at blocking the lower wavelengths of light (<420 nm). However, even in the worst scenario, the filters were able to block at least 97% of the irradiance.

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The effectiveness of using a patient simulator to teach light-curing skills

Cited by 38 publications

References 44 publications

Impact of Material Shade and Distance from Light Curing Unit Tip on the Depth of Polymerization of Composites

Impact of Material Shade and Distance from Light Curing Unit Tip on the Depth of Polymerization of Composites

Light curing in dentistry and clinical implications: a literature review

Evaluation of Eye Protection Filters Used with Broad-Spectrum and Conventional LED Curing Lights

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