Q. Hello, wonder if you can help me… My 4 top incisors are slightly crooked, but the right-most incisor sits slightly behind the others and rests behind my lower incisors when my mouth is shut. This can sometimes look like I am missing a tooth and over the past couple of years I have noticed it is becoming harder to keep the tooth clean and it has developed a small pit in the enamel. What treatment would you recommend for this? Ideally I would like all my incisors to be perfectly straight.