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Dental loupes, also referred to as surgical loupes, are becoming widely used today because of the many benefits they provide. In fact, they are now regarded as a standard to the dental practice. This small magnifying device is used by both the dentists and dental hygienist to make the mouth, gums, and teeth of the patient look clearer and larger, allowing them to have a better view of the work area. The loupes also make it easier and quicker for the dentists and dental hygienists to navigate the oral cavity clearly and examine every essential part of the gums and teeth of the patients in crisp detail during the dental check-up.
The dental loupes do not only help improve your visual acuity, they likewise help you enjoy a pain-free and longer career by preventing early retirement due to chronic musculoskeletal injuries. With pain-free practice and improved visual acuity, dental clinical professionals are able to deliver higher quality dental care services, more precise diagnosis, and more accurate treatment.
You probably have already known the many benefits dental loupes offer. But do you know how they really work? In this post, we will try to explain to the best of our ability how dental loupes work. So if you want to know about it, please stay with us until the end of this post.
How do dental loupes really work?
To start with, let us first identify the different essential parts of the loupes. So, the dental loupes are basically made with optical barrels, carrier lenses, and a carrier frame. The optical barrel is an opaque cylinder which houses the focusing lenses. Most loupes come with transparent lenses with a curved surface. They can either be made from plastic or glass.
Depending on the type of dental loupes (through the lens loupes or flip-up loupes), the optical barrels can be drilled directly into the carrier lens like in the case of the TTL loupes or attached to the carrier frame through an adjustable hinge mechanism like in the case of flip-up loupes. Most dental loupes are folded into a protected and enclosed area to keep them safe especially when not in use.
Basically, surgical loupes magnify the object in focus by relying on the refraction of light that passes through the lenses. With the help of the refraction of light, the lenses are able to make the object you see through the lenses larger.
As you look through the dental loupes, the light that reflects off of the area in focus (in the case of dentistry that would be the teeth or the oral cavity) will hit the lens of the loupes. As soon as the light hits the lens’s surface, it refracts or changes in direction. This allows the light waves to focus on the focal spot located behind the lens.
The light that has been refracted will then pass through the pupil of your eyes and then focuses on your retina. This will then send a signal to the brain to produce a larger image. The image you see through the surgical loupes is primarily dependent on the ability of the lens to change the direction of the light. The entire process will make the object in focus much closer and larger than it actually is.
How much larger the image produced by dental loupes gets?
The size of the image you see when viewing through the lenses of this magnifying eyewear depends on the level of magnification. Dental loupes are available in different magnification powers. The most commonly used magnification powers in dental practice are 2.5x, 3.0x, 3.5x, 4.0x, 4.5x, 5.0x, 5.5x, and 6.0x.
Each of these magnification levels has its own appropriate application or uses. And each also produces different image sizes. Lower magnification levels like 2.5x and 3.0x, for instance, are mostly used by students and first-time loupes users. These levels are also enough for general dentistry.
Because it has a larger field of view and it makes the object in focus appear to be only approximately 2x or 3x larger, it makes it easier for the eyes of the users to adjust and get adapted to working with a magnified image. The learning curve of the lower magnification loupe is also less steep than those loupes with higher magnification power. Once your eyes already have completely adjusted to working with a magnified image, you can then opt to upgrade to a higher level whenever needed.
Dental loupes with magnification powers ranging from 3.5x to 5.0x are ideal for specialty practice and for more intricate dental procedures that require high levels of precision and accuracy. Whilst, magnification levels 5.5x and 6.0x are commonly used by dental technicians.
It is not advisable for first-time users to use high power magnification loupes right away. Using higher magnification levels without getting accustomed to lower levels first will make it harder for you to adjust to using a loupe and it can also possibly cause you trouble working with it. You also won’t be able to enjoy the many benefits loupes offer. It can even make you suffer from headaches and even musculoskeletal pains.
Higher magnification levels have a stronger lens and shorter focal length. The focal length is the distance between the focal point and the center of the lens. The general rule states that the shorter the focal length is, the more powerful the lens and the larger and closer the produced image will be. Additionally, if the lens is stronger or more powerful, the more it can produce a larger image.
It is important to note, though, that the type and quality of the lens will dictate how clear and magnified the produced image of the object in focus will be. They will also determine how powerful and strong dental loupes are. Needless to say, it is important to meticulously check the type and quality of the lens before buying a new pair of dental loupes. Also check the other important factors like the resolution, weight, field of view, and depth of field of the lens as these all can contribute to how great the loupes will be.