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A man with short, wavy brown hair and a beard smiles while sitting on a light-colored couch in a softly lit living room.

Facial paralysis can significantly affect your appearance and confidence, especially when it impacts your ability to smile. One of the most noticeable consequences of facial nerve dysfunction is a lopsided or asymmetrical smile, where one corner of the mouth fails to lift. Whether caused by Bell’s palsy, trauma, tumor removal, or congenital conditions, this imbalance can make social interactions uncomfortable and emotionally challenging.

At the facial plastic and reconstructive surgery practice of Dr. Joshua D. Rosenberg in NYC, we specialize in advanced surgical techniques to restore facial balance and symmetry, helping patients regain both function and self-esteem.

Why Smiles Become Asymmetrical with Facial Paralysis

A natural smile relies on precise coordination of the facial muscles, especially those controlling the movement around the lips and cheeks. When the facial nerve is damaged or weakened, it can impair muscle activation on one side of the face. This often results in the corner of the mouth drooping or remaining immobile, while the unaffected side continues to move.

Over time, this imbalance can cause psychological distress, social withdrawal, and even functional issues such as drooling or difficulty speaking.

Smile Restoration with Selective Neurolysis Surgery

One of the most effective techniques for improving smile symmetry in cases of facial paralysis is selective neurolysis. This highly specialized procedure is designed to restore upward motion at the corner of the mouth by releasing restrictive muscles and modulating nerve activity.

How It Works:

Selective neurolysis involves releasing the platysma muscle, a superficial muscle in the neck and lower face that can contribute to downward pulling on the paralyzed side of the mouth. At the same time, Dr. Rosenberg targets and reduces hyperactive nerve branches that may be interfering with coordinated movement. By doing so, the face is rebalanced and the corner of the mouth is allowed to elevate more naturally, resulting in a more symmetrical and expressive smile.

This technique is particularly valuable for patients who have some preserved facial movement but struggle with imbalance or synkinesis (involuntary movement of muscles).

Other Surgical Options for Smile Reanimation

For patients with more severe or complete paralysis, other advanced procedures may be considered:

  • Cross-facial nerve grafting: Uses a nerve from the unaffected side to reanimate muscles on the paralyzed side.
  • Gracilis free muscle transfer: Involves transplanting a muscle (typically from the thigh) to the face, paired with nerve grafting to recreate natural smile dynamics.
  • Temporalis tendon transfer: Redirects a chewing muscle to help lift the corner of the mouth during smiling.

These techniques require a highly trained reconstructive surgeon to evaluate the best course of action based on the duration and severity of paralysis.

Why Choose Dr. Joshua D. Rosenberg?

Dr. Rosenberg is a diplomate of the American Board of Facial Plastic and Reconstructive Surgery and the American Board of Otolaryngology. Based in New York City, he is nationally recognized for his expertise in facial nerve paralysis, microvascular reconstruction, and complex facial plastic surgery. With advanced fellowship training and years of hands-on surgical experience, Dr. Rosenberg is one of a select group of surgeons offering highly specialized procedures like selective neurolysis in the U.S.

At his NYC practice, patients receive personalized, state-of-the-art care designed to restore both facial symmetry and confidence.

Start Your Smile Restoration Journey

If you’re living with facial paralysis and seeking solutions for a symmetrical smile, Dr. Rosenberg and his team are here to help. Through precise surgical planning and compassionate care, we’ll guide you toward the best path to facial balance and function.

Schedule a consultation at our New York City office today and take the first step toward a restored smile and renewed confidence.

Posted on behalf of Joshua D. Rosenberg, M.D.

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Our Patient Reviews

Joshua D. Rosenberg, M.D.

4.9 / 5.0

Based on 11 reviews

Tonio Jennifer

Knowledgeable Doctor, great staff...somehow Dr Rosenberg makes you feel that no matter the odds he will come thru for you and with me he did so many times

Karmita Avila

I haven't the opportunity to meet the doctor yet, I have an appointment. I was referred by an ENT doctor in NJ, Dr. Douglas Leventhal, nice, young, excellent bed manners. Unfortunately he does not reconstruction nasal perforation, but he was very interested in helping me, and he referred me to a colleague in NY, and asked me wait a call from them, otherwise to call him back if they didn't contact me. Thanks GOD, they are very efficient and received, today two calls , I finally got to talk to Evelyn, very kind, and patient, gave me the appointment, I hope that my present health problem due to bad medical practice years ago, Dr. Rossenberg, can reconstruct my septum. I thank you from deep of my heart.

Nada Alkhawam

I want to thank DR. Rosenberg for his time and he’s amazing staff,he did a wonderful job operating on my face moving the cyst last Tuesday , I couldn’t believe my self the way he operates berly any brosis, he’s amazing surgeon , and he’s staff especially Ann& daina they are on top everything sweetheart they answered all my questions, with friendly since humor, I’m so lucky to have him As surgeon

Theresa Norris

Excellent surgeon supported by caring medical team members. Highly recommend.

Jan Wong

Dr. Rosenberg and his staff are thoughtful, caring and made me feel at ease during my procedure and at my follow up visits. Highly competent and friendly staff. Definitely recommend.

Sue Bee

An excellent Doctor who is kind and compassionate. He genuinely cares about his patients and their well-being.

Joshua D. Rosenberg, M.D. New York, NY logo

New York, NY

Joshua D. Rosenberg, M.D.
234 East 85th Street, 4th Floor
New York NY 10028

(212) 241-9410

Opening hours:
Monday & Friday 9:00 AM – 5:00 PM