| Business | Phone |
| Goldtech Dental Laboratories 249 King St E, Oshawa L1H 1C5 | (905) 579-8800 |
| Ortho-Dent 311 Viola Ave, Oshawa L1H 3A7 | (905) 436-3731 |
| Ortho-Dent Supplies & Svc 311 Viola Ave, Oshawa L1H 3A7 | (905) 436-3133 |
| Oshawa Dental Laboratory Ltd 167 Simcoe St N, Oshawa L1G 4S8 | (905) 725-5273 |
| R & S Orthodontic Laboratories 187 King St E, Oshawa L1H 1C2 | (905) 725-9362 |
| Dentex Dental Laboratory 187 King St E, Oshawa L1H 1C2 | (905) 576-1164 |