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| Study | Reason for exclusion |
|---|---|
| Bell 2003 | Not an RCT. |
| Bodner 1996 | This study focused on radicular, residual and dentigerous cysts only. |
| Cieslik‐Bielecka 2008 | Not an RCT. |
| Gerlach 1989 | Not an RCT. |
| Gomez 2005 | This is an opinion letter. |
| Jensen 1988 | Not an RCT. |
| Jiang 2002 | Not an RCT. |
| Koval 1989 | Not an RCT. |
| Laffers 1997 | Not an RCT. |
| Mitchell 1992 | This study focused on granulomas, peri‐apical and residual cysts. |
| Salmassy 1995 | Not an RCT. |
| Tan 2007 | Not an RCT. |
RCT = randomised controlled trial.
