I had Radiesse injected into my smile/laugh lines a year ago, as it was done via cannula. I have always felt a hard line where the product was placed on both sides of my mouth. It is still there one year later. Question 1: Is this still the product, or is it scar tissue from trauma of the cannula? I was swollen from this procedure for what felt like eternity. Question 2: If it is in fact scar tissue, will that make it harder to inject filler in those areas in the future? Thank you for your time.