| Omni clean and polish bubble gum | 04250374734001 | Alfred Becht GmbH | Class I | |
| Omni clean and polish cola | 04250374734018 | Alfred Becht GmbH | Class I | |
| Omni clean and polish mint | 04250374733158 | Alfred Becht GmbH | Class I | |
| Omniclean and polish Repair | 04250374733165 | Alfred Becht GmbH | Class I | |
| OMNI DENT Omnisuc Cleaner | 04064797030325 | PRISMAN GmbH | Class I | |
| One-Step Finishing System P7 1.0 | 06977435830820 | TANGSHAN HENGXIN MEDICAL SUPPLY CO., LTD. | Class I | |
| One-Step Finishing System P7 1.0 | 06977435830837 | TANGSHAN HENGXIN MEDICAL SUPPLY CO., LTD. | Class I | |
| One-Step Finishing System P7 1.0 | 06977435830844 | TANGSHAN HENGXIN MEDICAL SUPPLY CO., LTD. | Class I | |
| Opalustre | 00883205042835 | Ultradent Products, Inc. | Class IIa | |
| Opalustre | 00883205103567 | Ultradent Products, Inc. | Class I | |
| Opalustre | 00883205104328 | Ultradent Products, Inc. | Class IIa | |
| OptiDisc | 08055165035055 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035062 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035079 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035086 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035093 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035109 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035116 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035123 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035130 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035147 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035154 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035161 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035178 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035185 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035192 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035208 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035215 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035222 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035246 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165035253 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165093567 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165093574 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165093581 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165093598 | KERR ITALIA SRL | Class IIa | |
| OptiDisc | 08055165093604 | KERR ITALIA SRL | Class IIa | |
| OptiShine | 08055165035260 | KERR ITALIA SRL | Class IIa | |
| OptiShine | 08055165083353 | KERR ITALIA SRL | Class IIa | |
| OptraGloss Assortment | 07615208294682 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Ceramic Kit | 07615208294613 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Composite Kit | 07615208292824 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Refill Cup HP | 07615208294668 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Refill Cup PP | 07615208294675 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Refill Flame HP | 07615208294620 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Refill Flame PP | 07615208294637 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Refill Lens HP | 07615208294644 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Refill Lens PP | 07615208294651 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Refill Spiral Wheel HP | 07615208291766 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Test Pack 2 | 07615208458077 | Ivoclar Vivadent AG | Class IIa | |
| OptraGloss Test Pack 3 | 07615208291643 | Ivoclar Vivadent AG | Class IIa | |