Light curing matters:  Facts often overseen by dentists

Oliveira, Dayane Carvalho Ramos Salles de; Rocha, Mateus Garcia; Roulet, Jean‐François

doi:10.25241/stomaeduj.2018.5(4).art.4

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Achieving and maintaining correct stable light guide positioning throughout cure becomes more difficult in posterior locations and operator variability is a critical factor in regard to energy delivery [49,50]. Allied to this fact, many dentists do not look into the patient's mouth during the light curing procedure [51]. Education and proper training have proved to be effective for improving light curing skills [51].…”

Section: The Evolution Of Light Curingmentioning

confidence: 99%

“…Allied to this fact, many dentists do not look into the patient's mouth during the light curing procedure [51]. Education and proper training have proved to be effective for improving light curing skills [51]. Indeed, clinical failure rates of photocurable restorations have been linked with improper placement and curing of materials, currently ranging from 0.08 to 6.3% [52].…”

Section: The Evolution Of Light Curingmentioning

confidence: 99%

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The power of light – From dental materials processing to diagnostics and therapeutics

A. Hadis,

Shortall,

M. Palin

2024

BIiD

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Harnessing the power of light and its photonic energy is a powerful tool in biomedical applications. Its use ranges from biomaterials processing and fabrication of polymers to diagnostics and therapeutics. Dental light curable materials have evolved over several decades and now offer very fast (≤ 10 s) and reliable polymerization through depth (4–6 mm thick). This has been achieved by developments on two fronts: (1) chemistries with more efficient light absorption characteristics (camphorquinone [CQ], ~30 L mol-1 cm1 [ʎmax 470 nm]; monoacylphosphine oxides [MAPO], ~800 L mol-1 cm-1 [ʎmax 385 nm]; bisacylphosphine oxide [BAPO], ~1,000 L mol-1 cm-1 [ʎmax 385 nm]) as well mechanistically efficient and prolonged radical generation processes during and after light irradiation, and; (2) introducing light curing technologies (light emitting diodes [LEDs] and less common lasers) with higher powers (≤ 2 W), better spectral range using multiple diodes (short: 390–405 nm; intermediate: 410–450 nm; and long: 450–480 nm), and better spatial power distribution (i.e. homogenous irradiance). However, adequate cure of materials falls short for several reasons, including improper selection of materials and lights, limitations in the chemistry of the materials, and limitations in delivering light through depth. Photonic energy has further applications in dentistry which include transillumination for diagnostics, and therapeutic applications that include photodynamic therapy, photobiomodulation, and photodisinfection. Light interactions with materials and biological tissues are complex and it is important to understand the advantages and limitations of these interactions for successful treatment outcomes. This article highlights the advent of photonic technologies in dentistry, its applications, the advantages and limitations, and possible future developments.

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Section: The Evolution Of Light Curingmentioning

confidence: 99%

Section: The Evolution Of Light Curingmentioning

confidence: 99%

The power of light – From dental materials processing to diagnostics and therapeutics

A. Hadis,

Shortall,

M. Palin

2024

BIiD

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The light-curing unit: An essential piece of dental equipment

Price

Ferracane

Hickel

et al. 2020

International Dental Journal

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Introduction: This article describes the features that should be considered when describing, purchasing and using a lightcuring unit (LCU). Methods: The International System of Units (S.I.) terms of radiant power or radiant flux (mW), spectral radiant power (mW/nm), radiant exitance or tip irradiance (mW/cm 2), and the irradiance received at the surface (also in mW/cm 2) are used to describe the output from LCU. The concept of using an irradiance beam profile to map the radiant exposure (J/cm 2) from the LCU is introduced. Results: Even small changes in the active tip diameter of the LCU will have a large effect on the radiant exitance. The emission spectra and the effects of distance on the irradiance delivered are not the same from all LCUs. The beam profile images show that using a single averaged irradiance value to describe the LCU can be very misleading. Some LCUs have 'hot spots' of high radiant exitance that far exceed the current ISO 10650 standard. Such inhomogeneity may cure the resin unevenly and may also be dangerous to soft tissues. Recommendations are made that will help the dentist when purchasing and then safely using the LCU. Conclusions: Dental manufacturers should report the radiant power from their LCU, the spectral radiant power, information about the compatibility of the emission spectrum from the LCU with the photoinitiators used, the active optical tip diameter, the radiant exitance, the effect of distance from the tip on the irradiance delivered, and the irradiance beam profile from the LCU.

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Light curing matters: Facts often overseen by dentists

Cited by 2 publications

References 14 publications

The power of light – From dental materials processing to diagnostics and therapeutics

The power of light – From dental materials processing to diagnostics and therapeutics

The light-curing unit: An essential piece of dental equipment

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