Magnification was introduced into dentistry as far back as 1876 and loupes are now the most common way of magnifying the treatment area. Growing in popularity, along with the increase in Minimally Invasive techniques, loupes enable clinicians to not only see in more detail, which has clear benefits for diagnosis and treatment, but also lets the clinician work at the optimal distance from the patient with the resultant benefits for posture and ergonomics.
Henry Schein Dental supply Denmat custom-made loupes and lights and for 19 years, the PeriOptix® brand, supplied by Denmat since 2013, has been a leader in optical and light-based technology. All PeriOptix loupes are made with high-end, shatter-resistant glass to ensure optimum edge-to-edge clarity in a large viewing field. The wide variety of magnification options and large selection of loupe styles ensure that clinician needs can be met with an effective, elegant and customisable solution.
This interactive guide takes a deeper look into loupes, microscopes and the different options available. What are the advantages and what are their applications? What should you consider when purchasing loupes or microscopes?
The technology has advanced significantly since the beginning and dental loupes now offer clinicians the following compelling benefits:
Choice of loupes is very much a personal matter and there is a whole range of different designs, frames and specifications to choose from. Here are some of the things you should know before choosing your loupes.
Flip-up refers to lenses which are mounted on the frame of the loupes. This option gives clinicians the option of adjusting the interpupillary distance individually and it is easy to have different prescriptions for each lens. Additionally, the lenses can be ‘flipped’ out of the way to get an overview of the treatment area or to talk to the patient if required. However, this type of loupe is heavy, and this is often quite noticeable at the end of a working day. Denmat loupes counteract this by having lightweight frames.
Through-the-lens loupes are lighter than ‘flip-ups’. All factors are built into the lenses at the point of manufacture and therefore it is essential that accurate measurements are taken during the fitting process.
The basic principle for field of view is that as the magnification increases, the field of view decreases. In practical terms a magnification of 2x – 2.5x would enable the clinician to see multiple quadrant areas in focus and this is the magnification used by most general practitioners. Once a magnification of 3.5x is reached, the field of view becomes more restricted, usually to a single quadrant. However, this ability to focus on a particular area, often on a single tooth, makes this type of magnification suitable for specific procedures such as endodontics.
This refers to the ability of a lens to focus on objects, both near and far, without needing to change position. When magnification is used it restricts the depth of field and as the magnification increases the depth of field decreases, until a point at which only a small object is in sharp focus. At high magnification just a small movement from the patient or the clinician will result in losing focus, making working more challenging.
High-performance oculars can provide an extra-large depth of field (up to 120 mm).
• Short 28-38cm
• Regular 36-46cm
• Long 43-53cm
• X-Long 50-60cm
Weight and balance are vital for operator comfort and this is an important consideration for those wearing loupes constantly throughout the working day. The type of lens (Galilean or Prismatic) and design of the loupes (Through-the-lens or Flip-up) all play a part in weight and balance considerations.
When purchasing loupes you should also consider the following -
Resolution: the ability to differentiate images that are separated by small distances and to detect fine details.
Colourmetric Shift: Longitudinal Chromatic Aberration, also known as “LoCA” or “bokeh fringing”, occurs when different wavelengths of colour do not converge at the same point after passing through a lens. Because each colour has a different wavelength, uncorrected optics cannot focus on the different wavelengths in different points in space.
Deformation of the image: An object that is seen with a magnifying glass that has a spherical aberration, appears bent or spheric. The lines are not straight.
This is the most common type offering magnification of 3.5x or less. The lightweight design offers good field-of-view and good depth-of-field in a short compact design.
Much higher magnification (up to 8x) provides the sharpest image possible, within a short depth-of-field. However, this is compensated by longer and therefore heavier lenses. These are suitable for specialists requiring great detail and clarity within a small area.
PeriOptix optics are made with high-end, shatter-resistant glass to ensure optimum edge-to-edge clarity in a large viewing field. These lightweight premium through-the-lens (TTL) loupes have extremely precise optical quality and a large field of view making them comfortable, easy to use, and carefree. TTL loupes are also much lighter and sleeker than their flip-up counterparts.
One of the lightest loupes on the market. The great field of view and depth make this loupe comfortable for first-time loupe users and is perfect for hygienists and assistants.
The perfect balance between magnification and depth of field. This loupe is ideal for any general dental practitioner.
A great loupe for experienced loupe users. The higher magnification is beneficial for anyone looking to add a second pair of loupes.
The newly reimagined prismatic 4.0x loupe is extremely lightweight compared to others on the market. The high magnification allows the user to see a large image without compromising image clarity.
An appropriate light source is essential if true image clarity is to be optimised. PeriOptix improves visual acuity through powerful headlights that remove shadows in the oral cavity and eliminate the need to constantly adjust overhead lighting. Good lighting provides uniform and natural-colour output that is crucial to ensure the best outcome for your patients.
Easily upgrade your loupes to incorporate a Firefly cordless headlight and enjoy the freedom to move through any procedure with confidence.
Significantly smaller and lighter than most other LED headlights, weighing less than 9 grams, the MicroLine Mini delivers an amazing output of uniform light across the entire oral cavity.
This is the measurement, in millimeters, between the centers of the pupils in each eye. This measurement only takes a couple of minutes.
This is the measurement which determines the distance at which the user is comfortable working. This distance should be calculated while the user is in an upright, and comfortable position that keeps the clinician’s ergonomics in check.
Clarity of vision is vital to meet the demands of today’s patients. Loupes, lights and microscopes are an important part of a clinician’s equipment and create the right environment to deliver outstanding treatment. There has never been a better time to invest in magnification and Henry Schein Dental has picked the best equipment to help clinicians make the most appropriate choice.