| Methods |
Journals were handsearched cover‐to‐cover. MEDLINE was searched (date not given) for the years 1966‐1998. |
| Data |
5 oral health journals: Journal of American Dental Association, Journal of Clinical Periodontics, Journal of Periodontal Research, Journal of Periodontology, (1984‐1993); American Journal of Orthodontic & Dentofacial Orthopedics (1989‐1998). |
| Comparisons |
Handsearch vs MEDLINE using the Cochrane HSSS. |
| Outcomes |
A total of 522 RCTs were identified; 522 RCTs were identified by HS, 346 RCTs were identified by ES. |
| Notes |
It is not clear if all RCTs were full reports. |
