| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | retainer | Korea | Not a common practice for orthodontic patients to wear retainers after braces are removed | 1 |
| 2 | retainer | South Korea | Retainers are not commonly used after orthodontic treatment, as there is less emphasis on long-term retention of teeth alignment. | 1 |