Meet Our Team

Alexia Vjero

Dentist- Specialist in Aesthetic Dentistry.

After graduating from the University of Athens in 2008, Dr. Vjero began her career at Dr. Andonoiannaki’s Periodontology Clinic before specializing in Aesthetic dentistry.

Between 2011 and 2015, she completed a master’s degree in Aesthetic Dentistry, further refining her expertise in this specialized field.

From 2015 to 2020, Dr. Vjero worked as a dental assistant at the University Clinic of the University of Geneva, where she contributed to the clinical training of dental students and conducted research in preventive dentistry, with a particular focus on laser applications. Alongside her academic role, she was deeply involved in private practice, where she focused extensively on aesthetic dentistry. Her work included smile makeovers, teeth whitening, composite bonding, and minimally invasive cosmetic procedures, combining scientific precision with an artistic approach to enhance patients’ natural smiles. This parallel experience allowed her to blend academic research with high-level clinical practice, particularly in the field of cosmetic and laser-assisted dentistry.

In 2024, Dr. Vjero took over the leadership of Cabinet Dentaire du Seujet, where she became part of a multidisciplinary team.

Specializing in aesthetic dentistry and preventive care, Dr. Vjero offers a gentle and reassuring approach to all conservative dental treatments for both adults and children. Her goal is to help each patient, even the most anxious, regain confidence and well-being through personalized dental care.

Sebastian Engelhardt

Dentist – Periodontist

Sebastian Engelhardt graduated in 2006 from the University of Freiburg i.Br. in Germany and qualified with the title “Dr. med. dent” in 2007. He obtained his Masters in Periodontology and Implant Therapy in 2013 and has been awarded as a Specialist in Periodontology in 2015 by the European Dental Association.

After moving to Switzerland in 2010, he provided general dentistry and periodontal treatments at several different clinics. In 2016, he joined Bénédict Bättig after the opening of Cabinet Dentaire du Seujet. Considering the fact that healthy gums are the foundation of healthy teeth and a healthy life, he focuses on periodontal treatments, oral surgery, and dental implants. He is a member of the SSO, Swiss Society of Periodontology SSP and the International Team of Implantology ITI, and was recently appointed the Director of an ITI Study Club in Geneva.

Sebastian’s goal is to provide complete oral restoration solutions when possible, addressing gum problems first before complex dental work, usually by non-surgical treatment and appropriate hygiene measures or sometimes by surgical options such as regeneration of lost bone or gum. Cosmetic issues such as gum recession or gummy smile lines can also be addressed, for instance, through microsurgical gum grafts. He is also in charge of dental implant treatments within the practice, providing solutions for patients with missing teeth, whether they require single or multiple tooth replacements.

Known for his friendly, caring, and open approach, Sebastian ensures that patients fully understand their periodontal conditions and treatment options. He speaks fluent French and English, as well as his native German.

Jalal Hamwi

Dentist, Specialist in Endodontics

Dr. Hamwi graduated from Syria and Sweden, and has been practicing as a dentist since 2003. With extensive international experience, he has worked in Syria, Qatar, Sweden, Belgium and Switzerland.

He has held the position of Assistant Dentist and Supervisor in the Department of Endodontics at Malmö University (Sweden). He currently works as a dental assistant, supervisor and teacher at the CUMD of the University of Geneva.

Specialized in endodontics, Dr. Hamwi masters root canal treatments as well as the management of dental emergencies and acute pain. He performs all of his treatments under a microscope, using modern and conservative techniques to ensure high-precision care.

Dr. Hamwi is fluent in French, English, Arabic and Swedish.

Sylviane Riboni

Dental Hygienist

After an apprenticeship as a dental assistant, Sylviane practiced for five years before enrolling at the School of Dental Hygienists, from which she graduated in 1993.

Since the opening of Cabinet Dentaire du Seujet in 2016, she has enthusiastically served as a dental hygienist. Sylviane’s mission is to support each patient with kindness, rigor, and professionalism to promote optimal oral health.

Nefissa Belkaid

Dental Hygienist

Having graduated from the School of Dental Hygienists in 2023, Nefissa practices at Cabinet Dentaire du Seujet with dedication and professionalism. She is fluent in French, Italian, and English, which allows her to welcome and care for an international patient base with clarity and warmth.

Nefissa’s practice is based on listening, trust, and patient well-being. She places particular emphasis on prevention, oral health education, and high-quality care in compliance with the strictest standards.

Mélissa Aubry

Dental Assistant

Akraka Vigneswaran

Apprentice Dental Assistant

Kokob Tuum Tekie

Apprentice Dental Assistant