It is not just the implant that gets displaced from its original position as one gets older and skin sags. Since the muscles and other parts age as well when aging stretches skin, the implant naturally sags downward from the chest position. 

Receiving orthodontics treatment does not matter if you are simply straightening/moving your teeth. Neither does undergoing square jaw surgery affect your orthodontic treatment. So rest assured that you can have the surgery.

The cartilages used for nose surgery include: nasal septal cartilage, ear cartilage, or costal cartilage. Each cartilage has pros and cons. In case of using the nasal septal cartilage, extraction is carried out from the inner incision made during surgery precluding additional incision. The flat cartilage is mainly used to raise the nasal bridge since it provides excellent support. Ear cartilage is the most commonly used autologous cartilage and is a good material to make a natural nasal tip that is more elastic than the nasal septum cartilage. Chest cartilage provides great support, and it is used when ear or nasal septal cartilages are not available. 

Excessive extension to the red flesh of the eye may cause your eyes to look too close together. The epicanthoplasty of FACE Plastic Surgery Center leaves some of the red part of the eye  to create a natural, distinct eye shape.

Botox tolerance can vary from person to person. Large dose or too frequent injection may lead to tolerance (less effectiveness or shorter duration of effectiveness).

Liposuction can be effective when there is a lot of fat, but extracting fat cannot make droopy skin elastic. In this case, a slender waistline can be made if abdominal plasty is performed as well.

It is not easy to change the original hair line you have. Unless the hairline is not very noticeably V-shaped, however, the suppressed areas may be reduced to produce a natural effect.

You can breastfeed even after having breast augmentation. So you need not worry about safety before/after childbirth regarding the surgery. 

If what is developed is the bone, not the masticatory muscles, Botox alone cannot produce the desired effect. Such case needs square jaw correction.

You do not have to worry about it. It is possible to raise the lower bridge only while maintaining the height between the eyes so that they do not look too close to each other.