Lasers used in dentistry are engineered and designed to perform special functions without changing or damaging the surrounding tissues or materials.
The functioning of a laser goes back to Albert Einstein’s quantum theory of radiation and includes other theories that help explain the local tissue damage. The first laser was demonstrated in 1960. It was ruby laser, 694nm wavelength. Interest in the medical implications of laser light was high and already in 1967 , some of the first reports appeared on the effects of very low doses of ruby light on biological tissues. In animal studies, it was observed that experimental wounds healed better if irradiated and that even the shaved fur of the experimental animals reappeared faster in the irradiated areas. There appeared to be a biological window for the dose. If too low, there was no effect, if too high there was a suprresive effect. Not much later, the Helium-Neon laser was introduced in research and the results were similar. Later on, diode lasers were introduced and they provide the same results, although some wavelengths appeared to be better for certain indications. In particular, the introduction of infrared lasers improved the optical penetration of the ligh, reaching deeper lying tissues. The first commercially available lasers in the early 80’s were extremely low powered, below 1mW was used, in spite of the fact that the first scientific reports used 25 mW. This partly explains the initial contoversy about therapeutic dosage to be used. With the rapid developement of laser diodes, the powers of therapeutic lasers have changed dramastically and diode lasers today are typically in the range of 50-500 mW. Increased power has not only shortened the treatment time but also improved the therapeutic results.
Whitening dental products and professional whitening treatments can usually guarantee you a satisfactory result. However, these products and treatments can also cost you a fortune. In this article, I would like to share with you a few home remedies that can be used to whiten your teeth.
(Please consult a dentist or physician before starting any of these home remedies)
Tooth whitening, also known as dental bleaching is a common procedure in dentistry in which chemical agent such as carbamide peroxide is used to lighten the shade of the tooth. Dental bleaching is usually done to get rid of unsightly stains on the teeth. There are several factors which can cause tooth staining: Continue reading →
Tooth sensitivity is defined as an experience of pain or discomfort that is sharp, sudden, piercing or excruciating in nature that is felt deep into the nerve endings. The pain may affect the tooth constantly or intermittently depending on its cause and nature.
Generally tooth sensitivity is caused by receding gums and enamel damage that leads to dentinal tubules in the dentine layer to be exposed and hence sensitized. Therefore, thermal sensitization like hot or cold drinks intake may make you cringe in agony. Occasionally, sweet and sour foods or even breezy cold air could also inflict sudden sensitiveness.
Tooth sensitivity is a common dental condition where the teeth becomes extremely sensitive to hot and cold, leading to tooth pain. It affects quite a number of adults, sometimes affecting their lifestyle where certain food with extreme temperatures such as ice-cream or hot coffee needs to be taken cautiously or in some cases, avoided completely.
Cause of tooth sensitivity
Tooth sensitivity occurs due to the exposure of dentinal tubules layer of the teeth which is usually protected by enamel. There are a range of factors that can contribute to dentine exposure, such as tooth grinding, broken tooth, tooth erosion, defective tooth filling, tooth whitening, tooth straightening, dental crown or bridge work and so forth. These are explained as followed: Continue reading →
Zoom is a type of teeth whitening system made popular by the ABC network’s Extreme Makeover show. Zoom teeth whitening system is used to bleach teeth which are discolored, giving them a whiter appearance. It is generally done as an in-office bleaching procedure, or otherwise known as professional bleaching. In other words, this can only be done by your dentist as opposed to home teeth whitening kitsdue to the high concentrations of hydrogen peroxide involved and the need of extra measures to protect gums and other soft tissues.
How does the Zoom teeth whitening system work?
Teeth whitening systems such as Zoom and Britesmile, another highly popular brand, are commonly categorized under laser teeth whitening. Strictly speaking, they are actually light activated teeth whitening products where a blue-green spectrum light is utilized to catalyze bleaching reaction of tooth whitening gel applied on surfaces of teeth. The incorporation of light claims to not only activate the active ingredient, hydrogen peroxide, it also allows further penetration into tooth structure, resulting in greater bleaching capacity.
To date, there are contraindicating reports regarding the efficacy of blue light in terms of activating bleaching products. Most pointed out that there is no significant evidence supporting such need, whilst others remained positive of its vital role in enhancing bleaching results. Continue reading →
As we become older, you might start to notice that you teeth start to become more yellow. You may feel self conscious and want to get rid of your yellow teeth, hence looking into many different ways to brighten or whiten your smile by getting rid of your yellow teeth. Teeth whiteningare common cosmetic dental procedures with a large selection of methods such as home teeth whitening and laser teeth whitening via the popular Zoom teeth whitening system, making it highly accessible to the public.
Causes of yellow teeth and tooth discoloration
Before embarking on the journey to whiten your teeth, it is helpful to know what may be the causes behind your yellow teeth. With age, our teeth get worn out with function due to all the chewing and grinding that we put it through. This leads to the thinning of enamel, which is the hard protective layer of your teeth that gives it the white appearance. The wearing down of enamel causes it to lose its opacity and becomes more translucent. This allows the underlying dentine, which is yellow in color to show through, resulting to naturally yellow teeth. But this is not tooth staining per se, as it is a natural process. A way in which the wearing dentition can produce ‘true staining’ is when stains get incorporated into the fine crack or craze lines on our teeth, making it difficult to remove with conventional tooth brushing. Continue reading →
Ever envy celebrities flashing their dazzling, white smiles? Well, you can obtain similar results by dental bleaching or commonly known as tooth whitening. Being a part of cosmetic dentistry, tooth bleaching have become one of the most requested services provided by the dental profession today.
Endodontic treatment is also known as root canal treatment. It is a procedure to clean, shape and fill the root canals of a diseased tooth. Our anterior tooth (incisors and cuspid) has one canal normally except for lower anterior teeth whereby they may have two. Bicuspids and molars have more than one canal. Continue reading →