I don’t but I need some also and I’ve talked to alot of people about it. It depends on your doctor and requires a little luck from what I’ve gathered. It could turn out bad or good. Honestly if you have the ability to get them anchored with implants don’t think twice. Do it. You can have them anchor a denture or you can get an all on 4 or 6 bridge which is the best option. It’s like having new teeth. I like the zirconia but you would need to match the material in your upper.