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| Methods | RCT |
| Participants | 66 (23 male, 43 female; mean age of 23.42 +/‐ 10.19 years) |
| Interventions | Conventional wraparound retainer versus circumferential comfortable retainer |
| Outcomes | Distorted speech, gagging sensation and discomfort assessed by participant on VAS scale |
| Notes | Translation of full text needed |
