Is the Incisionless Otoplasty a Good Option for Teens?

Incision-less Otoplasty vs Conventional Methods
My best advice is to pick the surgeon and not the technique. Few surgeons use the incision-less technique as it is a "blind" technique though this may be effective in the right hands.  Make sure you look for long term results. Most otoplasties can be done with limited incisions (minimally invasive) behind the ears allowing for direct visualization and greater control in reshaping the ear cartilage until you have the right shape with the sutures used just to insure it remains in this shape during the healing period and also allowing for skin re-draping on the changed ear cartilage framework .

As stated the "incisionless" otoplasty requires the ear to be easily contoured using percutaneous placement of permanent sutures that are similar to those placed during traditional open otoplasty. However the success depends on the ability to bend or flex the cartilage as well as concealing the sutures without having them become exposed. This is not as easy as it sounds and requires supple and thin cartilage to be successful.  

The incision-less technique for otoplasty is ideal for children or teenagers that have soft and malleable ear cartilages. For those with strong cartilages the traditional technique is better and the scar being behind the ear is of no consequence.