Table I.
Summary of all aligner brands.
Figure 1.
Number of companies entering the market relative to year.
Figure 2.
Timeline of Clear Aligner brand establishment years.
Figure 3.
Distribution of clear aligner companies geographically.
Figure 4.
Google Trends of the search of clear aligners. (The earliest data available on Google Trends is from 2004).
Table II.
Marketing claims found the official websites of the clear aligners companies included in the study.
| Marketing claim theme | Number of companies | Number of claims with evidence cited |
|---|---|---|
| Improved material | 42 | 4* |
| Better comfort | 50 | 1 |
| Shorter treatment time | 44 | Not Applicable |
| Enhanced aesthetics | 53 | 2 |
| Lower cost | 37 | Not Applicable |
| Others | 54 | 2 |
Figure 5.
Word Cloud for recurring marketing claims. With the terms most frequently mentioned in the claims largest in size and less frequently mentioned smaller in size on the figure.