Category: Lampara de polimerización

Métodos de activación de la fotopolimerización

Se hace en este artículo una revisión de las diferentes fuentes de luz y métodos de fotopolimerización,además de la revisión del desarrollo de las diferentes formas y nuevos protocolos para el curado por luz de los materiales dentales de resina compuesta, en relación con el aspecto importante de obtener las mejores propiedades físicas de la restauración y la disminución de la contracción a la polimerización.

La utilización de sistemas de emisión de distintos tipos de luz para iniciar la lámparas de polimerización de sistemas de resinas compuestas, genera siempre un número de factores que deben de ser considerados,como: 1, 2
1.- La seguridad del sistema emisor de luz.
2.- Las caracteristicas de la luz y de la fuente de luz.
3.- El grado y la extensión de polimerización que se obtienen.
Todas las lámparas que se encuentran en el mercado presentan diferentes fuentes de luz y diferentes intensidades.
Las características ideales mínimas que deben presentar los sistemas de las lamparas de luz, son:
– Potencia en la luz.
– Vida indefinida del bulbo.
– Peso ligero y ser portatiles.
– Profundidad de curado infinito y fáciles de utilizar.
Idealmente, todas las lamparas de luz deben de polimerizar a todos los materiales denta les, sin importar el tipo de fotoiniciadores que sean utilizados en los materiales. 1, 3
La cantidad de fotoiniciador activado, dependerá de:
– La concentración de fotoiniciador.
– El número de fotones.
– La energía de los fotones.
Existen actualmente 4 sistemas que son los más populares para el curado de materiales dentales fotopolimerizables.
El primero que se utilizó y que popularizó el uso de los materiales fotoactivados fue el de los sistemas de luz Ultravioleta (UV), que fueron introducidos a la Odontología en 1970 con la comercialización del primer producto: el sistema Nuva, desarrollado por la compañia L.D. CAULK, que también introdujeron como parte de este sistema el grabado con ácido del esmalte.

Curing lights, and the science behind them, have seen amazing growth and changes in the last few years. Here’s a look at some of the amazing things that have happened and why you should be aware of them.

We’ve seen a lot of changes in the way we provide treatment since the mid-1990s or so. While there were some advances in dentistry before that time, I truly believe the pure amount of changes we have seen in the last 10-20 years in our profession may well be more than there ever were before that time.

The last decade has seen a tremendous change in curing technology with the majority of the advances occurring in the last 5 years or so.

Composite and adhesive dentistry have seen an explosion both in their use and in the science that has allowed them to become the most commonly placed restorative materials in a huge number of practices. Careful science and research from multiple sources has allowed tooth-colored materials to move from the realm of “pretty but unpredictable” into the category of “what I reach for first” for a large number of doctors.

There are several factors that can affect the longevity and overall success of bonded restorations. Among these factors are things such as: biologic contamination, oil contamination, voids on pulpal floor, incomplete bonding and over etching.

However, one of the factors that has really changed in recent years is curing lights, and I don’t think they are factored in as heavily in the success or failure of bonded restorations as they should be.

Curing lights, and the science behind them, have seen amazing growth and changes in the last few years. Let’s take a look at some of the amazing things that have happened and why you should be aware of them.

Shrinking footprints
We have seen an explosion in the amount of technology and the resulting equipment required to deliver it. If you’re lucky enough to have built a new office lately, you’ve been able to plan for this and avail yourself of more counter space. However, for many of us, that’s just not an option. This means the amount of countertop real estate is decreasing for the majority of offices.

Because of this, devices that actually take up less room than their predecessors are a bonus. Curing lights have decreased dramatically in size because of the proliferation of LED devices. This means more room to work when you need it most.

LED electronics
Most of today’s composites use camphorquinone as the photoinitiator. This chemical, often referred to as CPQ, requires a specific wavelength (color) of light to trigger it into starting polymerization of the composite resin. Because LEDs can be fine-tuned to produce just a specific wavelength or range of wavelengths, these curing devices now produce light where every photon that’s produced can be used in the curing process. This translates to better and more efficient curing. Many non-LED curing devices, such as fast halogen lights, produce lots of photons that are wasted because they are outside the range used by CPQ.

LED choices
The use of CPQ is very common by most manufacturers, but there are a few adhesive materials that use a different photoinitiator. Because of that, and the specifics of LEDs, there’s potential for a material to not be cured by a device designed to work only with CPQ. Fortunately, because LEDs can be created to produce different wavelengths, there are now several devices that can cure every resin-based material on the market. (To find out which photoinitiator your materials use, be sure to ask the manufacturer.)

Low energy
LEDs are incredibly energy efficient. This translates into the devices using less electricity than a device that uses some type of bulb with a filament. Interestingly enough, a bulb with a filament loses 90% of its energy as heat and generates only 10% as light.

Because LEDs are much more energy efficient, they don’t require nearly as much power. The result is that these devices can be powered by batteries rather than by AC current. This means a smaller footprint (see above), no cords, and being friendlier to the environment.

Easy access
I was once a fan of “gun-style” lights, probably because that’s what I grew up using. I was opposed to the “toothbrush style” lights that became popular about 10 years ago. However, you can teach this dog new tricks, and I have now come 180° in my beliefs.

I now am a big believer in the toothbrush style lights as they provide better access to difficult areas to reach…especially in the posterior.

One of the things about curing is the light needs to be as close and as parallel to the restoration as possible. If the light is even a few millimeters away, it can drastically reduce the curing efficiency, resulting in a composite that’s only partially cured. A resin that has undergone this type of curing is much more likely to cause sensitivity and have a much shorter clinical lifespan.

Because of their small size and LEDs that are frequently located right on the curing head, LED lights are superior at reaching and properly curing restorations.

bluephase® Style
With all of the features, power and efficiency of previous curing lights in the line, the bluephase® Style provides a slim, lightweight design. The ergonomic, high power cordless LED curing light is balanced to reduce the strain exerted on the hand and arm while curing. The new light probe design is said to allow for convenient access in hard-to-reach posterior areas. It also has an inductive charging system to make battery-related issues a thing of the past. The curing light is equipped with polywave™ LED technology to provide a broadband spectrum of 385-515 nm to cure all existing dental materials. The Click & Cure™ function allows for a fast convenient conversion from cordless to corded operation, in the event that the battery becomes depleted.

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Si lampe à photopolymériser pas cher vous avez une montagne de bonbons sur votre comptoir qui ne veut pas cesser d’appeler votre nom, il est autorisé à répondre. Mais lorsque vous répondez permettra de déterminer la profondeur de votre saut de la santé dentaire. Les aliments sucrés attaquent vos dents 20 minutes après que vous les mangez, donc enregistrer vos bonbons indulgence pour la nuit, de sorte que vous pouvez laver vos attaquants loin avec votre brossage soirs. Ces heures de l’après-midi peut être difficile. Votre estomac était contenu avec le déjeuner, mais maintenant il veut le dîner. Mais au lieu de saisir quelques bonbons, que diriez-vous à mâcher sur un morceau de gomme sans sucre? La gomme sans sucre augmente la quantité de salive dans votre bouche, vous donnant un rince-bouche naturel. Cueillette de la gomme sans sucre comme une alternative à grignoter permet également le niveau acide dans la bouche de tomber, ce qui diminue la formation de cavités. Si la gomme sera tout simplement pas tuer l’envie de le goûter, vous pouvez manger un morceau de fruit pour vous tenir à distance au cours de ces dernières heures de l’hygiène dentaire diligence. Vous vous remercierez plus tard. La texture croustillante sur les fruits comme les pommes et les poires nettoie vos dents pendant que vous mangez. Aussi, pendant que vous mâchez, votre bouche produit plus de bactéries de défense salive. Même si vous êtes le nettoyage chaque jour, il est toujours important de garder vos examens semestriels et les nettoyages mises à jour. Nettoyages semestrielles aider à se débarrasser de la plaque et de tartre qui la soie dentaire et le brossage quotidien ne peuvent pas obtenir assez. Des visites régulières chez votre dentiste augmentent également vos chances de diagnostiquer un problème plus grave comme le cancer par voie orale ou maladie parodontale avant qu’il ne soit trop tard. Maintenant plus que jamais, il est important de préparer votre compte bancaire pour régulière soins dentaires ainsi que les problèmes inattendus qui surgissent tout au long de l’année. La dernière chose que vous voulez à vous soucier lorsque vous avez une dent lancinante est de savoir si oui ou non vous pouvez vous permettre de les soins de santé dentaire nécessaire. L’achat d’un régime de soins dentaires de rabais peut vous aider à économiser de 10% à 60% sur la plupart des procédures dentaires.

Con este tratamiento eliminarán el sarro, las manchas y la placa bacteriana, las culpables de las enfermedades más comunes.

El odontólogo comenzará por eliminar el tártaro dental acumulado en las piezas dentales, para esto utilizará un equipo con ultrasonido que removerá el sarro por completo. Una vez que haya terminado con este proceso, se pulen los dientes con el objetivo de eliminar las manchas de los mismos.

Por último eliminará la placa dentobacteriana con un líquido el cual contiene bicarbonato de sodio. El odontólogo examinará si es necesario aplicar flúor, aunque no en todos los casos se aplica.

Después de terminar la limpieza dental podrá notar los resultados inmediatos, tu dentadura estará completamente limpia y en buenas condiciones, libre de un montón de bacterias que dañan la salud bucal. Pero debes mantenerla en este estado, cepillando correctamente y utilizando los productos correctos.

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