Seniz Ustundag

years of experience

Dr Seniz — Istanbul

Specialisation: Orthodontist
23 years of experience
Speaks:
English, Turkish
Online consultations: available
Workplace: Turkey, Istanbul, Hisar Hospital Intercontinental
Certified specialist in orthodontics since 2011
Dr. Seniz Ustundag is a certified orthodontics specialist at the JCI-accredited Hisar Hospital Intercontinental. She earned her doctorate from Marmara University with a focus on temporomandibular disorders. Dr. Ustundag treats complex dental alignment issues in children, teens, and adults.
- Performs orthodontic preparation for patients undergoing orthognathic surgery.
- Uses clear aligner systems including Invisalign First, Teen, and MA.
- Specially trained in lingual therapy and Roth techniques.
- Treats congenital conditions such as cleft lip and palate.

Online consultation with Seniz Ustundag

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Price on request

4.5

Good

20 patient verified reviews

1 star

10%

2 stars

3 stars

4 stars

5 stars

85%

Patient reviews

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1-5 of 20 reviews

Anonymous • Gastric sleeve surgery (Sleeve gastrectomy)

South Africa

6 Sept 2026

Verified review.

My journey felt "perfect"

What stood out most was the surgeon's personal approach. He showed me exactly what would be removed and set very realistic expectations for weight loss, which built a lot of trust. He even visited me personally after my sleeve gastrectomy. My journey felt "perfect". The care was solid. The main challenge was communication, as the "language could improve" among some team members. From a practical standpoint, the final bill had no surprises or additional expenses. I stayed in the hospital for more than six nights, and the clinic has remained easy to reach since I left, which is a great support during this recovery phase.

perfect

language could improve

Anonymous • Diabetes type 2

France

7 Sept 2026

Verified review.

Anonymous • PET-CT with Gallium 68(PSMA)

Turkey

19 Aug 2026

Verified review.

The staff were a definite highlight, providing excellent support and guidance throughout the PET-CT with Gallium 68 PSMA scan

I came away with a positive overall impression of the day. The staff were a definite highlight, providing excellent support and guidance throughout the PET-CT with Gallium 68 PSMA scan. They made me feel looked after. The doctor was professional and the clinic itself was well-equipped. My only negative, and the reason for a lower overall score, was the airport transfer. The taxi was difficult for me to get in and out of. More importantly, upon arrival at the airport, I could not find the driver at the designated meeting point, which created unnecessary stress. While the medical care was handled very well, the logistics of the transport could be improved.

A positive overall impression of the day

My only negative was the airport transfers Difficult to get in and out of taxi. On arrival ay airport could not find diver at meeting point

Anonymous • Prostatectomy

Ukraine

19 Aug 2026

Verified review.

The organization was top-notch

The consultation with the doctor and his calm confidence greatly helped to manage my anxiety. I went through the examination calmly and confidently, feeling a professional and compassionate approach at every stage. The organization was top-notch. The coordinator was always in touch, promptly resolving any issues that arose, and the transfer was always on time, which was very important. The clinic is excellent, and the staff is caring. The doctor himself is polite and attentive. Thank you.

The coordinator was always in touch👍 Great clinic👍 The doctor was polite and attentive👍 Transfer was always on time👍

Anonymous • Gastric sleeve surgery (Sleeve gastrectomy)

Brazil

16 Aug 2026

Verified review.

I feel better than expected

My biggest fear was the language barrier in another country, but everyone made me feel comfortable and heard. From the coordinators to my doctor, the treatment was professional and humane. My surgeon was particularly good, visiting me after the surgery and explaining realistic outcomes beforehand. I feel better than expected. I was given a clear aftercare guide, and there were no surprise costs. My advice is to stay for about five days after the procedure before you plan to travel home.

My experience was very positive; it exceeded my expectations, since being in another country with a different language than the patient's is often frightening, but there I felt comfortable because at every moment I felt listened to and treated with a lot of human warmth — from the coordinators, the translator, and especially the doctor, who was very professional and humane in his treatment. A very beautiful experience.

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Qualifications

Dr. Şeniz Üstündağ is an orthodontics specialist at Hisar Hospital Intercontinental. She performs Invisalign treatments, lingual therapy, and orthognathic surgery preparation. The doctor earned her PhD with research on temporomandibular disorders. Her specialization was officially certified in 2011.

Orthodontic Expertise and Approach

Dr. Üstündağ treats patients of all ages who require corrective dental procedures. She uses the Roth technique and mini-screw anchorage systems for precise tooth movement. Her practice includes preventive orthodontics and the treatment of impacted teeth. Additionally, she treats cleft lip and palate conditions.

Advanced Aligners and Braces

Invisalign (First, Teen, and MA programs)
Clear aligners and transparent braces
Fixed and removable orthodontic appliances
Lingual braces installed on the inner tooth surface
Myobrace functional treatments

Education and Academic Background

Dr. Üstündağ holds a doctorate from Marmara University Faculty of Dentistry. This English-language program concluded in 2007. Her thesis examined computerized axiographic evaluation of jaw movements in patients with temporomandibular disorders. She earned her orthodontics specialization certification in 2011. The doctor updates her skills through national and international medical congresses.

2002 – Accepted into the PhD program at Marmara University
2007 – Earned Doctorate in Dentistry, Turkey
2011 – Clinical Orthodontics Specialization Certification
Undergraduate degree – Marmara University Faculty of Dentistry

Procedures and Conditions Managed

The doctor treats patients at Hisar Hospital Intercontinental. This facility serves over 500,000 patients annually and holds JCI accreditation. Dr. Üstündağ achieves functional and aesthetic dental health for her patients. She also manages centric occlusion and condylar movements using relaxation splint therapy.

Adult, teen, and pediatric braces
Preparation for orthognathic surgery
Digital Smile Design and electronic axiography
Treatment of temporomandibular (TMJ) disorders – conditions affecting the jaw joints and surrounding muscles
Functional orthodontic therapy

Dr Seniz — Istanbul

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Qualifications

Orthodontic Expertise and Approach

Advanced Aligners and Braces

Education and Academic Background

Procedures and Conditions Managed

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