What is soft tissue onlay in rhinoplasty?

Soft tissue is sometimes used to cover the bridge or tip of the nose in patients with thin skin. Temporalis fascia or alloderm are most commonly used for this purpose. This provides a thin soft tissue cover in order to help give a smooth appearance to the bridge of the nose.

Soft tissue is material that is very soft and is placed in the nose to cover any depressions, irregularities etc. Typical material can be fascia, mucoperichondrium. 
Regards
Dr. Janjua