Fixed orthodontic treatment become compulsory in case of:-
1)- Maxillary mandibular prognathism
2)-Space in anterior teeth
3)- When patient age is greater than 14 years.
4)- Crowding in maxillary or mandibular or both arch
5)- Edge to edge occlusion of anterior teeth.
Fix orthodontic treatment is carried out by braces. Fixed orthodontic treatment is a long time treatment. Which take 1.5 to 2 years in completion of the treatment. During fixed orthodontic treatment oral hygiene maintenance is compulsory. Bad oral hygiene during fixed orthodontic treatment can cause dental caries or pyorrhea or gingivitis.