Size | S (non-ortho.) | TT (ortho.) | TB (ortho.) |
---|
 | Width | Age | Width | Age | Width | Age |
---|
1 | 12.5 | 0–3 | 17.0 | 0–3 | 16.3 | 0–3 |
2 | 14.0 | 3+ | 20.0 | 3–6 | 17.8 | 3–9 |
3 | – | – | 24.1 | 6–18 | 20.0 | 9+ |
- S: Conventional, non-orthodontic bulb based on Soothie (Philips Advent, Glemsford, Suffolk, England) design
- TT: Closer to Nature, 2007–2014 version (tommee tippee, Mayborn USA Inc., Stamford, CT). Orthodontic
- TB: Jewl (Boon, Tomy International, Inc., Oak Brook, IL). Orthodontic. The design of the bulb also changes with size
- Size: designation used for this study
- Width: maximum bulb width (mm)
- Age: manufacturers’ recommended age range for use (months) at the time of this study