Table 4.
Conflicts of interest for each included study.
| Nr. | References | Conclusion |
|---|---|---|
| 1 | Ccahuana-Vasquez RA. [41] | 4 authors out of 6 (Dr. Ccahuana-Vasquez, Dr. Conde, Dr. Grender and Ms. Cunningham are employees of Procter & Gamble that supported the study and own the company Oral-B). Dr. Goyal and Mr. Qaqish have no conflict. |
| 2 | Goyal CR. [42] | 3 authors out of 5 (Dr. Klukowska, Dr. Grender, and Ms. Cunningham are employees of Procter & Gamble that supported the study and own the company Oral-B). Dr. Goyal and Mr. Qaqish have no conflict. |
| 3 | Klukowska M. [43] | 4 authors out of 5 (Dr. Klukowska, Dr. Grender, Biesbrock, and Mandl are employees of Procter & Gamble that supported the study and own the company Oral-B). Dr. Goyal has no conflict. |
| 4 | Klukowska M. [44] | 3 authors out of 4 (Dr. Klukowska, Dr. Grender, and Conde are employees of Procter & Gamble that supported the study and own the company Oral-B). Dr. Goyal has no conflict. |
| 5 | Klukowska M. [45] | 4 authors out of 5 (Dr. Klukowska, Dr. Grender, Ms. Conde, and Dr. Ccahuana-Vasquez are employees of Procter & Gamble that supported the study and own the company Oral-B). Dr. Goyal has no conflict. |
| 6 | Patters MR. [46] | This study was funded by a grant for Oralbotic Research, Inc. (company relative to the third group of treatment: powered toothbrush Hydrabrush®) |
| 7 | Ricci M. [47] | No conflict of interest |
| 8 | Schmalz G. [48] | No conflict of interest |
| 9 | Schmickler J. [49] | No conflict of interest |
| 10 | Starke M. [50] | This study was funded by Philips |
| 11 | Williams K. [51] | 4 authors out of 7 (Walters, Tao He, Julie Grender, and Biesbrock are employees of Procter & Gamble that supported the study and own the company Oral-B). Dr. Williams, Rapley, and Haun have no conflict. |
| 12 | Zimmer S. [52] | No conflict |