Patient: When I changed my teeth as a child, I lost three small teeth in front of my upper teeth, and then 2 large incisors came out, but there was a gap in the middle. I went to an irregular place once to get a filling, but because of the bad material, it became inflamed in a month, and after I took it out, the hair had made the two side teeth slightly smaller, and the gap in the middle became the size of one tooth, which was bigger than before. The first two teeth underneath me are a little longer, and I usually only have my lower teeth outside so that I can chew. Can the crown be repaired without braces? Zhang Yanzhen, Department of Stomatology, The Second Hospital of Zhejiang University School of Medicine: From your description, it is very likely that you had a multiple tooth between the 2 front teeth when you were a child and did not correct it in time after it was extracted. The gap between the 2 front teeth is too large. From the current photo you can see that in the front teeth you have early contact of the teeth, but there is no way to know the bite of the back teeth or the width of the gap. So you must go to the hospital for further examination to determine to do orthodontic or esthetic restorative treatment plan.