Monthly Archives: July 2017

dental tips

The Uses of Dental Air Polisher

Use of dental air polishers decreased as the clinician’s age and experience increased. Curricula in many dental hygiene schools do not include clinical instruction in the use of this polishing device due to inadequate numbers of units and difficulty in moving units between clinic stations. Inadequate or insufficient knowledge and experience, therefore, appears to be a major factor in the underutilization of the air polisher.

In an attempt to provide a suitable knowledge base for practicing dental hygienists, the primary purpose of this article is to provide a comprehensive summary and critique of the research on all aspects of air polishing. In addition, a suggested technique, common concerns, and possible solutions will be discussed.

Discussions are based on a review of the relevant literature on air polishing. Tables organize the data into categories to facilitate access of needed information. Because of the various research designs employed and the number of variables that must be controlled, comparative analyses of the studies are difficult. However, where possible, analyses of the validity and reliability of the studies are provided. It should be remembered that while laboratory (in vitro) investigations are useful, the most definitive conclusions must be obtained through clinical (in vivo) studies. Case reports or opinion articles have limited applications.

Because polishing with a rubber cup and prophylaxis paste has been shown to remove the fluoride rich layer of enamel and cause marked loss of cementum and dentin over time, this method of stain removal has been challenged Rubber cup polishing with prophylaxis pastes, therefore, may not be a suitable method for moderate-to-heavy stain removal on enamel, cementum, or dentin. One study, however, contradicted these findings and suggested that rubber cup polishing with chalk is equally effective in decreasing root-surface roughness caused by sonic scaling. Chalk is not a common polishing agent and no comparison of the abrasiveness was made between it and the sodium bicarbonate used in air polishing powder. This study, therefore, may not simulate actual clinical situations.

Numerous investigations have examined the effects of the air polisher on a variety of restorative materials. Some results have been positive, while others have recommended caution near restorations. Although some studies are contradictory, most suggest caution or complete avoidance when air polishing on or near composite restorations. On composites, surface roughness or pitting was the most common result seen. One study concluded that, although marginal microleakage was greater for composites than for amalgams, this loss was not statistically or clinically significant. More research is recommended since previous studies do not support this conclusion.

dental equipment

Some Tips about How to Choose Dental Equipment

With so many different models and manufacturers to choose from, you want to make sure you’re investing in something of quality that is best for your practice. While some products may do the same function, some perform and last better than others simply because of how they were made.

As good as a deal that company you don’t recognize or haven’t seen any reviews on may offer, do not buy from them unless you are sure the decision is right for you.

Choose a manufacturer who has an established reputation and has been in business for a number of years. These companies have the knowledge and experience to help recommend the best products. This also benefits you because they know exactly how each product functions and how it benefits the different dental practices.

When contemplating the change to digital dental in your practice, the choices can be confusing for the dentist. Dental radiography has evolved from film and chemical developers into a highly technical process that involves various types of dental x-ray machines, as well as powerful dental software programs to assist the dentist with image acquisition and diagnostic analysis of the acquired images. When making the decision to purchase x-ray equipment, the doctor needs to research the available options thoroughly, in order to make an informed choice for the “right” machine for his or her practice.

Although “top of the line” dental chairs may cost between $7,000 to $9,000, you may benefit more from buying a used dental chair instead. This is because many used and portable folding chair are made of more durable materials than many of the mass-produced products on the market now.

One of the best ways to make sure you are buying quality materials is to ask other professionals within your practice. This can come from directly contacting them or simply reading reviews from others in the industry. Make sure that the individuals you are getting advice from are also established and reputable, just as you would with choosing a manufacturer.

Those with years of experience will be able to tell you which products are best and which are not. In many cases, they have already used the product and have the best knowledge of whether it is a good investment and the pros and cons of the products.

Dental Compressor

TheType of Fluid Used in Air Compressor

It is not uncommon for five horsepower air compressor pricing to range from less than $750 to near $2000. The difference can be measured in compressor life, sometimes as short as 2000 hours versus 40 years for a heavy duty pressure lubricated compressor. While the upfront cost is attractive, it would seem the maintenance would involve throwing away the lesser air compressor every year or so and replacing it with a new machine. Even if it were planned to keep the air compressor and perform a rebuild, it may not be possible with less costly air compressors.

The consumption of special parts and oil also must be considered in the cost of ownership. It is typical for manufacturers of rotary screw dental air compressors to provide a long-life synthetic fluid to enhance the performance of the air compressor. Synthetic oils will last from 4000 hours to an indefinite period before requiring a change-out.

Depending on the type of fluid used, special handling and disposal might be required. For example, normal motor oil, which is rarely used in any type of air compressor, can be easily discarded without being considered a hazardous waste. Automatic transmission fluid, which will last about twice as long and reflects that in its price, can similarly be disposed of fairly simply. Both types of fluid are collected routinely by oil recyclers to be re-blended.

Synthetic fluids and blends, however, sometimes require special handling for proper disposal. Ester and olefin type fluids must be identified and require special disposal in some municipalities. It is best to check before buying to ensure all costs are factored.

Other types of fluid are considered to be biodegradable, and thus suitable for disposal in a sewer system. Such fluids, polyalkeneglycol or polyglycol, should have a certificate from the manufacturer that states the fluid’s biodegradability.

Other specialty chemicals like silicon blends or pure silicon represent another disposal issue and should be disclosed prior to purchase. Note that the more features a fluid has, like long life and high temperature stability, the more expensive it will be to buy and discard.

By carefully selecting an air compressor that has a balance between long service life and parts cost, it is possible to save even more money over the life of the equipment. Also, by weighing the maintenance requirements, the impact of waste filters and fluid can be managed as well. Less cost and less waste is better for the economy and ultimately is better for the environment.

Dental Autoclve

The Sterilization Methods in Dentistry

Disposable dental supplies are also used whenever possible. Tools that are not disposable are generally scrubbed by hand and placed in a machine known as an autoclave. This machine then disinfects the tools by spraying them with very high-pressure steam, which kills most micro-organisms. Any tools that can not be subjected to high heat or moisture are usually disinfected with chemicals.

Disposable dental tools and supplies are some of the most important items when it comes to sterilization in dentistry. Some disposable dental supplies include bibs and masks wrapped in sterile packaging. Once these are used with one patient, they are simply thrown away.

Maintain sterilized instruments in the pouches or wrapping in which they were sterilized by autoclave sterilizer. If the packaging becomes torn or wet, the items must be repackaged and heat sterilized. Avoid mingling non-sterile packages with sterile ones. There should be a visible indicator, such as chemical indicators or color-change autoclave tape on the outside of each package to allow staff to easily discern sterilized instrument packages from those that have not yet been heat-processed.

Tools that can’t be thrown away, such as dental drills, are generally put through a very intensive dental sterilization process. First they are usually vigorously scrubbed by hand. This is usually done with hot water and detergent, and it helps remove any large particles, such as plaque. They may also be placed in a vibrating tray filled with cleaning solution, which can help remove very small particles.

The Centers for Disease Control and Prevention (CDC), the American Dental Association (ADA), OSAP, most state dental licensing boards, and dental handpiece manufacturers all recommend heat sterilization between patient uses. Virtually all handpieces currently in production are heat-tolerant, and those that are not can be retrofitted to allow heat-processing. Autoclaving and chemical vapor sterilization are considered accepted methods of heat sterilization. High-level disinfection via chemical germicides cannot be biologically monitored to assure sterility. Further, extended contact with chemical germicides may corrode handpiece components.

Sterilization in dentistry also involves killing the invisible germs on tools. Autoclaves are machines that are commonly used during sterilization in dentistry. These machines are usually made from large metal cylinders, and they are similar to pressure cookers. Once the tools are placed in the autoclave, they are sprayed with high-pressure steam. The high pressure inside this machine helps raise the steam to very high temperatures that are necessary for killing disease-causing micro-organisms.

dental equipment

Knowing more Information about Sterilization in Dentistry

Today’s busy dental practices face a serious challenge: to maintain or increase productivity while ensuring that patient safety remains a top priority. At times, these may seem like incompatible goals. Advances in dental processing equipment, however, have empowered practices to develop safer processes while realizing efficiencies and ultimately, saving money.

Most dental offices have a designated area for instrument reprocessing that is separate from the dental treatment room. This is ideal, since cleaning, sterilizing and storing instruments in the same room where the delivery of patient care is provided increases the risk of cross-contamination. The removal and disposal of single-use sharps such as needles, blades, orthodontic wires and glass must be done at the point of use, typically in the dental treatment room.

A cleaning and sterilization by dental autoclave process that meets ADA and CDC guidelines is vital to an effective infection control program. Streamlining of this process requires an understanding of proper methods, materials, and devices. Many methods of instrument reprocessing are available. Use of a complete system that encompasses and fulfills all elements that are critical maximizes efficiency and minimizes risks. Closed cassette systems provide a more efficient and safer way to process, sterilize and organize instruments in a dental office – these eliminate manual steps during instrument reprocessing such as hand scrubbing and time-consuming sorting of instruments, thereby improving safety and increasing efficiency.

Using mechanical means of instrument cleaning rather than hand scrubbing should minimize handling of instruments. If procedures are used whereby hand scrubbing is necessary, heavy-duty (utility) gloves, mask, eyewear and gown should always be worn while cleaning. Minimize the risk of puncture injury by scrubbing only one instrument at a time while holding it low in the sink.

Use of a system utilizing locked cassettes eliminates the need to sort, handle and hand scrub individual instruments – reducing the risk of infection from contaminated instruments – and results in savings of, on average, five minutes during instrument reprocessing, as well as fewer damaged instruments, since the instruments are locked in position during reprocessing. As with any standardized procedure, a standardized instrument reprocessing protocol also results in easy staff training and cross-training.

In general, three classifications of mechanical cleaning devices are available for the dental office. They are the ultrasonic scaler, instrument washer and instrument washer/disinfector.