For the cavity depth of cavity needs to be assessed and accordingly filled. For the braces. Kindly visit a dentist nearby to check for clinical situation first. As per the situation you may be advised treatment. And type of braces you want.
Just perform one x Ray of front region teeth and consult Dr. whether all teeth need rct or not. U need to perform rct for needed teeth becoz these teeth will lose at age of 7.5- 8 yrs. For remaining teeth simple filling process can be done.
Kindly get the caries removed and get the cavities filled with a tooth coloured restoration. Avoid sticky food and frequent intake of foods having more carbohydrate content. If you have pain in any of the tooth then kindly get an X-ray done, may be you will have to get root canal treatment done followed by a cap. Brush your teeth twice daily using correct brushing technique to maintain your oral hygiene.
Brush your teeth at least twice a day with a fluoride-containing toothpaste. Preferably, brush after each meal and especially before going to bed.
Clean between your teeth daily with dental floss or interdental cleaners, such as the oral-b interdental brush,
Rinse daily with a fluoride-containing mouthwash. Some rinses also have antiseptic ingredients to help kill bacteria that cause plaque.
Eat nutritious and balanced meals and limit snacks. Avoid carbohydrates such as candy, pretzels, and chips, which can remain on the tooth surface. If sticky foods are eaten, brush your teeth soon afterward.
Check with your dentist about use of supplemental fluoride, which strengthens your teeth.
Ask your dentist about dental sealants (a plastic protective coating) applied to the chewing surfaces of your back teeth (molars) to protect them from decay.
Drink fluoridated water. At least a pint of fluoridated water each day is needed to protect children from tooth decay.
Visit your dentist regularly for professional dental cleanings and oral exam.