Yes, you should be able to proceed with Botox and fillers. Please double check with your plastic surgeon if you are not using him/her for your Botox and fillers.
The only concern your surgeon might have is if there is a rare risk of infection from the filler which can then threaten the implant. Check with your surgeon to make sure he or she is Ok with it. If they don't have a concern about you having a dental cleaning at a certain post-operative time, then they shouldn't be concerned about Botox and filler injections through clean skin.