| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | retainer | Japan | Retainers are commonly used in Japan to hold traditional clothing such as kimono or hanbok in place. | 5 |
| 2 | retainer | United States | Retainers are frequently used in the United States to preserve the alignment of teeth after orthodontic treatment. | 5 |
| 3 | retainer | Canada | In Canada, retainers are widely used following orthodontic treatment to preserve teeth alignment. | 4 |
| 4 | retainer | Korea | In Korea, retainers are not widely used after orthodontic treatment. | 2 |