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The Basic Aspects Of Introducing The Microscope Into Dental Clinical Practice
Dienstag, 29. Oktober 2019 - keine Kommentare
1.- INSTALLING THE MICROSCOPE
Most operators prefer a ceiling or wall-mounted microscope, as this option causes the fewest restrictions when it comes to moving around the microscope and its mounting. Sometimes, depending on the size, equipment and the way the operating theatre and clinic are "decorated", a floor- or wheel-mounted microscope may be recommended.
2.- TREMBLE CONTROL
Tremble control is one of the most important preparatory steps in the learning period and is very valuable when using microsurgical techniques, which is assessed and measured in tens of a millimetre when we are working with large magnifications. When trembling cannot be controlled it usually has catastrophic results, which, in general, lead to discouragement and demoralisation.
3.- POSTURE CONTROL
The operator’s head must be slightly bent (approximately (30º), the dental chair should be in such a position that the operator and assistant’s backs are vertical and straight, the operator’s arms should fall relaxed and parallel to the vertical axis of the microscope, and the forearms should be parallel to the floor. The length and angle of the chair’s headrest should be adapted to position of the patient’s head in the appropriate occlusal plane. There are some simple exercises we should do until our movements are harmonious and precise.
4.- WORKING POSITIONS FOR DENTISTRY
It is absolutely impossible to give a complete list of all the working positions we might possibly need when performing microsurgical procedures in the different areas of the oral cavity. Our ultimate goal is to learn how to adjust the position of both patient and microscope, and for the surgeon and assistant to find the most comfortable, least tiring and fatiguing positions, while being able to see all possible areas of the mouth.
Generally, the operator is situated at between nine and twelve o’clock, and there is a greater distance between the operator and the patient being greater. Usually, the first steps in the majority of procedures are performed at low levels of magnification, and higher magnification is used for observing the details. A lot of the time it is better to move the patient’s head, the chair or to use intraoral camera with screen, rather than needing to continually adjust the microscope.
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What are the types of dental loupes used in dental microsurgery?
Donnerstag, 24. Oktober 2019 - keine Kommentare
The modern day dentist has numerous magnification systems to choose from. These magnifying systems range from simple loupes to compound prism telescopic loupes and vast variety of surgical microscopes. Each magnification system has its own advantages and also its own limitations. Fundamentally these loupes are made up of two monocular microscopes with lenses positioned side by side and angled in such a way to focus on a single object.
The various types of loupes are:
1.Simple loupes
2.Compound loupes
3.Galilean loupes
4.Prism loupes.
Devices of each category may differ widely in construction of the lens and design.
Simple loupes
Simple dental loupes consist of a pair of single, positive, side-by-side meniscus lenses. Each lens has two refracting surfaces. The first refraction occurs when light enters the lens, and the other refraction happens when the light leaves. The magnification of simple loupes can be increased only by enhancing the lens diameter or increasing the lens thickness. The size and weight are the limitations of these devices, so they do not have any practical applications in dentistry.
Compound loupes
Compound loupes have an array of convergent multiple lenses. There are air spaces in between these lenses which gives an additional refracting power, magnification, working distance, and depth of field. Such loupes can be easily adjusted as per the clinical requirements by lengthening or shortening the distance between the lenses. Compound lenses can be achromatic, and this feature is to be given importance while selecting a dental loupe. These achromatic lenses are efficient in producing a color perfect image.
Galilean loupes
These loupes are cheap and are simple to operate while compared to other compound loupes. These loupes consist of only 2 or 3 lenses which make them light in weight and also inexpensive. Their only disadvantages are limited magnification (2.5- or 3.5-fold) and a blurry peripheral border of the visual field.
Prism loupes (or wide-field loupes)
As their name itself suggest, these loupes consist prisms which are used to refract light rays. These loups have prism fixed at the top, i.e., they are called as rooftop or Schmidt prisms. These prisms are used to lengthen the light path through a series of switchback mirrors positioned between lenses. This system hence provides better magnification, wider depths of field. This also ensures the users to have long working distances and if compared with other loops they have larger fields of view. So these loupes are optically most advanced type of magnification instrument in the market at present. The ranges of magnification of these loupes are around 1.5x to 6x. Generally the dentists use magnification loupes of range 2.5 to 3.5. However, periodontists prefer magnification of 3.5 to 4.5-fold. In case of surgeries done on delicate tissues requires loupes that magnify 5.5 to 6.5-fold.
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What causes your tooth sensitivity?
Mittwoch, 9. Oktober 2019 - keine Kommentare - in Dental information
It can be frustrating – and, of course, downright painful – to have sensitive teeth. The mere thought of doing something as basic as chewing on a piece of ice can make you wince, as can drinking any sort of hot beverage. Why does this problem happen, and what can you do about it?
Why it Happens
The reason teeth become sensitive is usually that the roots of teeth become exposes, or the enamel on teeth becomes worn down. But it could be also due to a chipped tooth, a cavity or even gum disease. Getting to the dentist will be very important if you have sensitive teeth. Your dentist may examine you with an intraoral camera with screen or portable dental x ray machine. Then he or she will determine the reason for the problem and then come up with the best plan of action to treat it.
Special toothpaste –
Your dentist may recommend that you use desensitizing toothpaste.
Strengthening enamel –
Applying fluoride to your teeth could help with sensitivity.
Bonding resin –
If exposed roots are causing your teeth to be sensitive, a special type of bonding resin may help.
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Can X-ray really cause serious harm to human body?
Dienstag, 20. August 2019 - keine Kommentare
X-rays take by dental x ray unit are an essential part of ensuring good oral health. Many think that X-rays are harmful because they use radiation to capture the image, and misinformation shared on the internet adds to the concerns. However, what patients may not know is that the level of radiation they are exposed to in an X-ray is actually quite low. In fact, just being out in the sun or flying in an airplane exposes you to higher levels of radiation than an X-ray.
According to the American Dental Association, the amount of radiation patients are exposed to during an X-ray is minuscule in comparison to the amount of radiation patients are exposed to on a daily basis. In fact, in one year, you will naturally be exposed to 640 times the level of radiation that routine X-rays produce.
X-rays also help dentists to take more preventative measures and detect oral health issues earlier. When a dentist can see an image of what’s below your gums or in between your teeth, they can anticipate if any problems will occur later, saving you both time and money in the long run.Keep in mind that X-rays are necessary to make a complete diagnosis. If you are in pain or think you need to have a procedure done, the dentist needs to evaluate what’s going on underneath the surface to better understand the cause of your pain.
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