| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | cavitron | Japan | Not widely used in dental offices, traditional hand tools are preferred | 1 |
| 2 | cavitron | Japan | Less commonly used in dental offices compared to traditional cleaning methods. | 1 |
| 3 | frontier | Japan | Frontier is often associated with the historical concept of the edge of settled territory, and the furthest extent of a country's settled or inhabited regions. | 1 |