รีเทนเนอร์ลวดอาจมีโอกาสบาดเหงือกหรือกระพุ้งแก้มได้หากระมัดระวังในการสวมใส่ Invisalign is often a perfectly-known brand name that makes clear aligners. They also make clear retainers termed Vivera®. Are clear retainers more expensive? No, not generally. There's a myth that clear retainers are dearer than long-lasting retainers and Hawley retainers but, depending upon the model, most Es... https://johnnieq529bgi0.national-wiki.com/user