Dr Sabbagh would give answers only to make you afraid not to have the work done immediately with him. All his work had to be redone. His indicated bridges only last 5 years. I had the same bridge for 20 years and no problem. The same bridge he replaced only last 4 years. All the teeth under the bridge broke and I had to get implants. He grinds the teeth down so little the bridge can not hold them. Do not waste your money like I did. Find another dentist.