Laser Tooth Whitening Effectiveness Study:
Summary of the results
Shade change analysis of the first 1000 non-tetracycline cases performed showed an average improvement of 8 shades. The results showed that the darker the teeth the greater the whitening effect. An average shade improvement of 8.8 tabs was observed for cases who were darker than the average tooth color (A3 and darker). This group of patients required a change of at least eight shades to reach their optimal natural tooth whiteness i.e., the top of the whitening scale. 74% of patients achieved results of A1 or better (one shade from the top). 85% of patients achieved B2 or better (two shades from the top of the scale). 22% of all patients achieved 9 shades or more. 53% of patients achieved 7.5 shades or more.
Results
The distribution of pretreatment shades for the 1000 cases, shown graphically in chart 1 was as follows:
The frequency of post-treatment shades for the 1000 cases are shown in chart 2 and were found to be as follows:
The average shade change was 8.8 shades
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