The aim of the paper is to compare the factors that determine the
effectiveness of the teeth whitening treatment and general satisfaction of patients of
the effects of treatment. The research has covered the influence of selected methods
of whitening on enamel structure. The effectiveness of teeth whitening was assessed
by comparing the tooth colour before and after the treatment using the VITAPAN 3DMASTER
shade indicator. The in vitro research has not indicated any negative
influence on the enamel structure and it has shown higher effectiveness of the
Beyond Whitening system used at White Smile Clinic, as compared to the whitening strips method, which has
been also confirmed by the in vivo research.
Among all the procedures used in oral health care, teeth whitening is one of
the methods that give patients the greatest satisfaction. It is essentially a beautifying
treatment, but considering the boost that it gives to state of mind and self-esteem, it
also has a substantial therapeutic effect. This treatment usually involves solutions
containing hydrogen peroxide and urea peroxide. Effectiveness of compounds
containing H2O2 has been confirmed by numerous researches (1,2).
After long-term use of whitening substances applied on whitening strips (over-night whitening, whitening strips
method), there is a frequent effect of tooth hypersensitivity, which is observed in the
case of from 10% to 65% of all patients (according to our own research). There are
several factors that determine the level of tooth hypersensitivity and they include
concentration, time and frequency of application (2) and the state of enamel.
In the last years, there have been tendencies to shorten the time of the
whitening treatment itself. One of the suggestions is whitening using an accelerating
lamp that emits blue light, filtered by about 12,000 optical fibres in order to eliminate
the emission of heat and ultraviolet light. The treatment, which takes about 40
minutes, involves emitting light of the wavelength between 480 and 520 nanometres,
which activates the substance, spread on the teeth, containing H2O2 and silicon
dioxide with an activator and substances that reduce tooth sensitivity.
This paper focuses on an attempt to compare the influence of whitening using
the “Beyond Whitening” accelerator and the whitening strips method on changes in
enamel topography. The second part of the paper discusses also subjective opinions
of patients after using both methods.
Results & Discussion
According to the patients, teeth whitening using the Beyond Whitening system
is not inconvenient or oppressive. Subjective opinions expressed in the performed
survey indicate that patients are really satisfied with the treatment. In the case of the whitening strips method, hypersensitivity occurred on the
second or the third day after application of the whitening substance. Patients most
frequently reported the sensation of tingling, burning, reaction to cold, heat and
Our experience has shown that the patients who had the whitening treatment
using the whitening strips method did not achieve a satisfactory whitening effect even
if they had precisely followed the instructions. The possible reason could be eating
between the whitening cycles. Such effects do not occur in the case of whitening
using the Beyond Whitening accelerator, even if a patient smokes cigarettes.
The research that has been performed enables the formulation of the following
-Shortening the time of whitening does not have negative impact of the effectiveness
of the treatment.
-With our today’s knowledge, we can believe that short-term application of
H2O2 in clinical environment and longer application of
H2O2 at home does not do any serious harm to enamel, which enables an
assumption that these methods are safe.
-Following the procedures recommended by manufacturers of whitening substances,
similar whitening effects were obtained in vitro in the case of both methods., In vivo
the method of blue light whitening seems to be more effective, which is proven by
whiter shade of teeth.
-The differences observed by patients are usually triggered by the discomfort during
the whitening strips treatment. Generally, it can be concluded that patients are more
satisfied with whitening using the Beyond Whitening method.
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BLEACHING TRAYS. j Dent REs 1996; 75: 286.
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