Ten Dental Handpiece Maintenance Common Mistakes

Poor dental autoclave sterilizer Maintenance – If the autoclave is not properly cleaned and maintained, buildup will occur that will contaminate the entire system, including the handpieces that are sterilized in it.

Using a Chemical Wipe Down on a Handpiece Before Sterilizing – This is not only redundant, but it may multiply harmful reactions when the handpiece is put through the high temperatures of an autoclave cycle.

 Using an Ultra Sonic Cleaner – Handpiece should never be immersed into any fluids.
Removing a high speed handpiece or low speed handpiece from the Autoclave Too Early – Removing the handpiece before the drying cycle is complete or before the handpiece has cooled down will cause condensation buildup inside the handpiece which will lead to internal rust and the handpiece will be ruined.

Lubricating the Incorrect Hole – The drive air tube is the only line that leads directly to the turbine or vital moving parts. The rest of the holes acts as exhaust, water, or chip air.

Failure to Run Handpieces After Lubricating – Not running the handpiece after inserting lubricant can cause the oil to gum up inside the turbine and other moving parts. elaborate

Not Cleaning the Fiber Optics – Failure to clean the fiber optic surfaces clean will reduce the amount of light that can transmit though the fiber optics thus reducing the brightness of operating field.

Not Enough Lubricant – Be sure to apply enough lubricant to reach the bearings and moving parts. You cannot over lubricate a high speed handpiece because you can always purge out the excess lubricant. You do not have the same luxury with low speed handpieces.
Leaving Burs In the Chuck during Autoclaving – When burs are installed in an autochuck,  the springs in the chuck are under tension. Applying extreme heat while under tension will weaken the springs and reduce the lifespan of the chuck. When burs are left in a manual chuck, it can cause a buildup of debris inside the chuck causing problems during operation.

Dirty Air & Water Lines – Having contaminated air or water lines can also contaminate all handpieces that  run on those lines. You can check if you have dirty lines by purging the lines onto clean white paper towel. If you see any dirt or discoloration, your line may be contaminated.

Visite annuelle et détartrage dentaire : à ne pas oublier

D’où vient le tartre ? Pourquoi le retirer ? A quelle fréquence faire un détartrage dentaire ? Un point à faire lors de la  visite annuelle chez le dentiste.

La visite annuelle chez le dentiste, un rendez-vous à ne pas manquer

Voir votre dentiste chaque année est incontournable pour éviter que de simples caries ou autres problèmes dentaires ne se transforment en soins nettement plus lourds, ou nécessitent la pose de prothèses.

Le tartre se dépose sur les dents au fil du temps

Des débris alimentaires et des bactéries sont présents malgré le brossage et constituent ce que l’on appelle « la plaque dentaire ». Au contact de la salive, elle peut former un dépôt minéral jaunâtre sur les dents : le tartre. Le dépôt de tartre varie selon l’hygiène et la composition de votre salive.

Pour éviter que le tartre ne se forme

Il faut se brosser régulièrement les dents, au moins 2 fois par jour après chaque repas, et en insistant plus particulièrement aux endroits où le tartre est susceptible de se former, c’est-à-dire sur la face interne des incisives (dents de devant) de la mâchoire inférieure, ainsi que sur la face externe des premières molaires de la mâchoire supérieure.
Ce sont des endroits qui sont proches des canaux par lesquels la salive se déverse dans la bouche, venant des glandes salivaires.
Le brossage manuel pour être bien fait, nécessite de brosser les dents verticalement de haut en bas, de la gencive vers les dents. L’utilisation d’une brosse à dents électrique facilite un bon brossage.

Le tartre crée de nombreux désagréments

S’il n’est pas retiré régulièrement, le tartre peut pénétrer facilement sous vos gencives. Il est à l’origine de saignements, d’infections des gencives, de déchaussement des dents… Il peut également donner mauvaise haleine.

Quand faire un détartrage ?

Il est recommandé de le faire au minimum 1 fois par an. Certaines personnes ressentiront le besoin de le faire tous les 6 mois.

Comment le chirurgien-dentiste enlève-t-il le tartre ?

Il est quasiment impossible d’enlever le tartre par ses propres moyens. Plus le tartre est ancien, plus il est difficile à enlever. Seul votre dentiste dispose d’instruments adaptés pour réaliser un détartrage, en 1 ou 2 séances.
Votre dentiste enlève le tartre à l’aide d’un appareil à ultrasons qui génère des vibrations à très hautes fréquences.
Ce n’est pas toujours très agréable, mais ce n’est ni douloureux, ni dangereux et cet acte ne nécessite pas d’anesthésie.
Dans quelques cas, un simple détartreur à ultrasons ne suffira pas car la maladie des gencives peut être plus avancée. Le dentiste devra donc pratiquer des soins plus complexes, tels le détartrage sous gingival et le curetage.

On le sait tous et pourtant …

Brossez-vous les dents le matin après le petit déjeuner et le soir avant d’aller vous coucher, idéalement après chaque repas,
Utilisez une brosse à dents en poils synthétiques souples et remplacez-la régulièrement,
Préférez le brossage avec une brosse à dents électrique, en cas de difficulté à maîtriser une bonne technique de brossage manuel,
Faites vérifier vos dents et gencives au moins 1 fois par an, voire 2 fois par an en cas de problème,
Les maladies des gencives sont fortement aggravées par le tabac.

voir les détails:http://www.dentaltools.fr/

Can Blue Dental Curing Light Hurt Your Eyes?

About the Blue Dental Curing Light

Before I answer Christopher’s question, here’s a little background information for those who aren’t familiar with the blue dental curing light. When a dentist puts a white filling (or a sealant, or a light-cured filling material) in your mouth, it is in a liquid or semi-solid state so that the dentist can put it exactly where it needs to go and shape it correctly. In order for the material to harden so that it can withstand the forces of chewing, it needs to be cured.

Curing the material is accomplished by shining a blue light on it. Not just any blue light will do. It has to be a certain shade of blue.

The blue dental curing light emits light at a wavelength of around 450 to 490 nm, a blue light. You can read more about the visible light spectrum here.

The very first light-activated filling materials used ultraviolet light. Fortunately, today dentists only use materials that are cured by visible light as the use of UV cured materials has pretty much died out due to the dangers posed by ultraviolet light.

The Blue Dental Curing Light Can Hurt Your Eyes!

One of the major dangers of the blue dental curing light is that it can hurt your eyes! When we were learning how to do white fillings, our professors always advised us to never look at the blue light.

Here’s what the book Craig’s Restorative Dental Materialssays about this:

Although there is minimal potential for radiation damage to surrounding soft tissue inadvertently exposed to visible light, caution should be used to prevent retinal damage to the eyes. Because of the high intensity of the light, the operator should not look directly at the tip or the reflected light from the teeth.
The orange filter that you can see on the curing light above filters out the visible light, allowing the dentist or assistant to see what they are doing without looking directly at the light.

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DEXcam™ 4 Dental Intra-oral Camera

Using real-time intra-oral video and pictures when communicating with patients creates immediate visual impact and can aid in their under­standing of your clinical findings and treatment recommendations.

Historical images of an area captured over time can help tell a story of improvement or decline. This educational support makes an intra-oral video camera essential to your practice.

The DEXcam 4 dental intraoral camera¹ is an ideal addition to your imaging toolkit. It is exceptionally easy to use and delivers excellent quality, tooth decay pictures – all at an attractive price point.

dental intraoral camera usb

Thoughtfully Designed for Usability
The DEXcam 4 intra-oral video camera feels solid and balanced in your hand. The anodized aluminum housing has a high quality, professional aesthetic and adds a degree of durability.
Capture control is directly on the handpiece of this digital intraoral camera. The capture buttons are membrane switches that are highly sensitive and easy to trigger. This aids image clarity as camera movement is less likely.
Capture buttons on both sides make using it effortless for both right- and left-handers.
Freezing the image is done with a single press; saving the image into the patient record is done instantly with a simple press-and-hold.
At the camera end of the cable, a reliable, industrial-grade connector offers quick-disconnect/reconnect functionality. By placing a holder and cable in each operatory,² the camera can be moved conveniently from room to room without disturbing computer ports that may be hidden.

DEXcam™ 4 Intra-oral Camera

Ideal Images for Show-and-Tell
A long depth of field allows you to move closer to a tooth or away from it while the image remains in focus.
This dental imaging equipment has a camera with a tip that accommodates an extra wide aperture that is highly receptive to the illumination from its intensely bright, state-of-the art LEDs.
The intraoral digital camera has been optimized to help ensure images are displayed in natural color tones; and precision-ground glass optics help prevent any image distortion.
A Sony® CCD sensor delivers the highest resolution among the major standard-definition cameras.³ Its 520,000-pixel images are clear and sharp.
Contoured sheaths are custom-made to fit the DEXcam 4. This contributes to image integrity by eliminating the irregularities caused by wrinkled plastic that may occur when using generic barriers.

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Antes de colocar los implantes dentales

Entonces, antes de colocar los implantes dentales es esencial detectar la presencia de enfermedades graves, como procesos degenerativos o cancerosos, trastornos psiquiátricos o alteraciones de carácter psicológico que impidan la colaboración del paciente y el posterior mantenimiento de los resultados.

En esta fase de planificación el dentista también debe saber si el paciente fuma o toma algún medicamento especial. Los malos hábitos de higiene oral y el tabaquismo son obstáculo real para los implantes dentales, puesto que influye de manera totalmente negativa en su mantenimiento a largo plazo.

Los siguientes pasos son la toma de radiografías (que ayuda a detectar patologías como la caries dental o la enfermedad periodontal) y también la toma de impresiones. ¿Para qué sirve este último paso?

Para obtener un modelo de la boca del paciente que incluya todas las características físicas de la misma.
Permite estudiar detenidamente (el dentista puede tomarse el tiempo requerido) la distribución de los dientes restantes en la arcada del paciente, dónde se colocarán los implantes dentales y qué tipo de coronas dentales se van a necesitar.
Confeccionar una férula a medida que actuará de soporte durante la cirugía implantológica.
Facilitar la previsión y la simulación de los resultados deseados.
Finalmente, otra herramienta clave puede ser el escáner de los maxilares, que nos ayudará a determinar definitivamente dónde y cómo insertaremos las piezas de titanio.

Productos relacionados:

micromotor odontología

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A Simple Introduction to Brushless Micro Motor Control

The brushless micro motor is becoming increasingly popular in sectors such as automotive (particularly electric vehicles (EV)), HVAC, white goods and industrial because it does away with the mechanical commutator used in traditional motors, replacing it with an electronic device that improves the reliability and durability of the unit.

Another advantage of a BLDC motor is that it can be made smaller and lighter than a brush type with the same power output, making the former suitable for applications where space is tight.

The advantages of brushless operation
The brushes of a conventional motor transmit power to the rotor windings which, when energized, turn in a fixed magnetic field. Friction between the stationary brushes and a rotating metal contact on the spinning rotor causes wear. In addition, power can be lost due to poor brush to metal contact and arcing.

Fundamentals of operation
The BLDC motor’s electronic commutator sequentially energizes the stator coils generating a rotating electric field that ‘drags’ the rotor around with it. N “electrical revolutions” equates to one mechanical revolution, where N is the number of magnet pairs.

Controlling a BLDC motor
While BLDC motors are mechanically relatively simple, they do require sophisticated control electronics and regulated power supplies. The designer is faced with the challenge of dealing with a three-phase high-power system that demands precise control to run efficiently.

Driving a BLDC motor
While an 8-bit microcontroller allied to a three-phase inverter is a good start, it is not enough for a complete BLDC motor control system. To complete the job requires a regulated power supply to drive the IGBT or MOSFETs (the “IGBT Driver” shown in Figure 3). Fortunately, the job is made easier because several major semiconductor vendors have specially designed integrated driver chips for the job.

In summary
BLDC motors offer a number of advantages over conventional motors. The removal of brushes from a motor eliminates a mechanical part that otherwise reduces efficiency, wears out, or can fail catastrophically. In addition, the development of powerful rare earth magnets has allowed the production of BLDC motors that can produce the same power as brush type motors while fitting into a smaller space.

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5 preguntas sobre el blanqueamiento dentales

5 preguntas (con respuesta) sobre el blanqueamiento dental

Te contamos algunos de los secretos de esta técnica, una de las más demandadas para conseguir una sonrisa radiante

Una sonrisa bonita, blanca y radiante, es, nadie lo duda, una buena carta de presentación. Pero lo cierto es que, en gran medida, tener o no unos dientes bonitos depende de cuestiones genéticas. “El tono viene determinado por el color de la dentina. Se oscurece porque al envejecer el esmalte se hace más traslúcido y, además, influyen mucho los hábitos alimenticios que tengamos, además del hecho de si somos o no fumadores”, nos explican los especialistas de la Clínica Smylife.

Precisamente para ‘mejorar’ esos pequeños problemas estéticos que nos podemos encontrar relacionados con nuestra boca, hay multitud de opciones. Y una de las más demandadas, y que no hay duda que está de moda, son los blanqueamientos dentales. ¿Tienes claro en qué consiste? Vamos a intentar darte las claves de este tratamiento y, tal vez, la mejor manera es respondiendo a una serie de preguntas básicas sobre este tratamiento.
1. ¿Se daña el esmalte?
Una de las dudas que surge es si el esmalte sufre con estos procesos de blanqueamiento. En la Clínica Rosales, donde suele acudir Paula Echevarría a cuidar su sonrisa, aclaran que el esmalte permanece intacto, algo que pueden afirmar basándose en la experiencia, tras años de estudios y de su propia práctica. Así, explican que a los dientes no les sucede nada, salvo cierta sensibilidad post-tratamiento.

2. ¿Cuáles son las técnicas más utilizadas?
Lo más habitual es utilizar una técnica mixta, es decir, con tratamiento en la clínica y en casa, como nos explican en Smylife. En la clínica se aplica el producto blanqueante, que se activa mediante una lámpara LED, que lo que hace es abrir el poro del esmalte, para conseguir así blanquear la dentina. Normalmente requiere de unas dos o tres sesiones, depende de cada caso, de aproximadamente unos 20 minutos. Luego, hay que hacer un recordatorio del tratamiento en casa, por medio de unas férulas con producto que han de ponerse durante dos o tres noches para dormir, o bien durante unas horas por la tarde.

3. ¿Es un tratamiento doloroso? ¿Qué cuidados debemos tener después de realizar el blanqueamiento?
No es doloroso, pero sí que da sensibilidad al diente, una sensación que va desapareciendo en las 72 horas posteriores al tratamiento. Esos tres días posteriores son importantes para lograr un mejor resultado, y por eso en esas 72 horas hay que tener especial cuidado con la higiene y, en Smylife, recomiendan seguir una dieta ‘blanca’, es decir, que evite aquellos alimentos que provoquen tinción.
4. ¿Se lo puede realizar cualquier persona o existe algún tipo de contraindicación?
En cualquier persona que tenga la boca sana, es decir, sin caries y que no tenga sensibilidad dental, porque el tratamiento la puede incrementar.

5. ¿Es eficaz en todos los tipos de manchas que se pueden presentar en los dientes?
No. Los mejores resultados se obtienen en los dientes que, con el paso de los años, amarillean o que tienen ese tono natural. En tinciones más intensas (tonos anaranjados o grises), se puede conseguir aclarar el diente, aunque depende de la tonalidad y ha de ser valorado por el especialista, porque en los casos más severos no siempre se consiguen resultados tan satisfactorios. Las manchas provocadas por las tetraciclinas, un medicamento, dan un tono grisáceo al diente que no se puede blanquear. En ese caso habría que recurrir a otras opciones, como carillas, fundas o coronas.

Fuente:

limpiador ultrasónico odontológico

lampara led para blanqueamiento dental

Should Your Next Curing Light Be an Online Bargain?

LY® Dental Curing Light Wireless LED 1500mw Lamp

Inexpensive, cordless LED curing lights for sale are flooding online shopping sites, and clinicians are asking if they are
worth the minimal investment. In August, CR scientists purchased every unit they could find that was priced less
than $100—eleven total. The following observations were made.
• All arrived in working order and emitted bright blue light.
• Brand names did not match online information; private labeling was obvious.
• There were no manufacturer names or contact information, only online sellers and distributors.
• All had foreign origins and provided little or no local technical support.
• User instructions were poorly translated or missing.
• Many components were generic and fit poorly or were flimsy.
• None had basic electrical or medical product safety certifications.
The following report shows the features and performance of 11 inexpensive LED curing lights and compares them to premium lights with
proven clinical performance.

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