The doyle splint is intended to keep the nose aligned and to keep the internal mucosal surfaces away from each other until they are healed. We keep the splints in place for one week only.
In general I am not a fan of silicone nasal implants as they will eventually extrude usually after a few decades. I prefer organ donated rib cartilage for more complex nasal surgeries requiring generous volume replacement. This change can be made at anytime. If you are looking to see the results of your final rhinoplasty procedure, you should wait a good year.