In this case, as long as there is no problem with root canal treatment and no re inflammation, crown restoration is recommended, because resin repair will not be very durable, and teeth are still easy to break.

　　If a child has tooth decay, that is to say, dental caries in medicine can lead to black teeth and bad breath, which is the result of bacterial reproduction.

　　Familiar with large fractures, generally will not affect the speech, so now do not need special treatment, to avoid further injury.

　　After children change teeth, the gap between the two front teeth is large, which may be a physiological gap.

　　There is no big abnormality on it, so we don't need to deal with it now. Don't form the habit of looking at the tongue.

　　The suggestion is to go to the Department of stomatology for examination. You can check. Do you have an upper lip?