Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Search strategy
| Indexing terms | Publications (N) | ||
|---|---|---|---|
| Search string | PubMed | Embase | Web of Science |
| #01 Periapical radiograph* | 307 | 272 | 373 |
| #02 Intraoral radiograph* | 312 | 325 | 320 |
| #03 Panoramic radiograph* | 1,564 | 1,551 | 1,399 |
| #04 Orthopantomograph* | 317 | 346 | 85 |
| #05 OPT | 842 | 1,179 | 2,851 |
| #06 Apical periodontitis | 1,008 | 991 | 838 |
| #07 Periapical periodontitis | 80 | 94 | 88 |
| #08 = #01 OR #02 OR #03 OR #04 OR #05 | 3,322 | 3,655 | 4,944 |
| #09 = #06 OR #07 | 1,088 | 1,085 | 900 |
| #10 = #08 AND #09 | 14 | 12 | 21 |
