Teeth whitening programs and treatment techniques are considered to be pretty safe when guidelines are taken, in spite of this there are a few risks involved and they involve greater than before sensitivity, gum irritation, and technicolour teeth.

Teeth Sensitivity
Bleaching treatments can cause an increase in sensitivity to touch, pressure, and temperature. This may be far more liable to arise after an in-office whitening, where the concentrations of hydrogen peroxides used are higher. During these types of treatments some people may have experienced shooting pains named as zingers, through the middle of their front Applications of bleaching the teeth might increase the teeth's sensitivity to pressure, touch, and temperature. Commonly, in-office bleaching treatments are more likely to produce sensitivity concerns due to the higher concentrations of hydrogen peroxides being used. Sporadically, people may possibly experience "zingers" which are shooting pains, through the focal point of their front teeth. Patients who are at greatest risk for greater than before sensitivity after whitening are individuals with retreating gums, leaking restorations or considerable fissures in their teeth. For cases of tooth sensitivity and tooth zingers, studies have revealed that redheads are more vulnerable, in spite of the risks posed or not. Usually, tooth sensitivity prompted by whitening applications can hang around for about a day or maybe two, but may last for durations of roughly a month in extreme cases. Dental professionals advocate toothpastes containing potassium nitrate for patients with overly sensitive teeth.

Irritation of the Gums
More than half of the end users of peroxide whiteners come across some degree of gum irritation due to elevated levels of bleach and from contact with the bleaching trays. Irritation might go on for several days, dissipating after the treatments have stopped or the concentrations of bleaching products are lowered to a more desired level.

Uneven Whitening
Dental restorations such as inlays, onlays, crowns and veneers might not be affected by whitening procedures and therefore maintain their colour whilst the natural teeth are whitened. The outcome is frequently labeled “technicolour teeth.�

Oral health care providers are likely to suggest follow up bleaching applications in order to help maintain and strengthen the durability of the whiter smile through treatments beginning directly after or to be accomplished at least once per year. In addition, oral health doctors habitually encourage the avoidance of dark-coloured drinks (or to drink them through a straw) in addition to staining foods for at least a week after a treatment. Moreover, practicing first-rate oral hygiene will unquestionably help keep teeth bright and new.

It should be noted that no amount of whitening can make your teeth ultra white and quite often the outcomes of the bleaching treatments will not be entirely evident for weeks following bleaching treatments. If restorative treatment options such as aesthetic bonding, porcelain veneers or other tooth restorations are required, they should be placed immediately after a bleaching program to take full advantage of bonding, functionality, and colour matching. Tooth coloured dental restorations might have to be replaced after whitening to evade the technicolour effect. In addition, receding gums can time and again expose their yellowish root surfaces at the gum line and that colour is incredibly complicated to bleach. In conclusion, expecting or nursing women are advised to wait on whitening applications due to the impending impact of ingested bleach on the new born baby or fetus is not entirely acknowledged at this time.

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