doctors at Boston Dental

The Doctors at Boston Dental

Dr. Maged el-Malecki – Dental Director

Smiling comes easily to Dr. Maged el-Malecki, a highly-experienced dentist who has transformed thousands of smiles for patients. With a genuine love for his craft, he continuously strives to fuse the power of art and technology to design beautiful smiles. Motivated by his passion for esthetics, Dr. el-Malecki channels his eye for symmetry and beauty into the cosmetic dentistry practice. His entire clinic is filled with the same enthusiasm, dedicated to redesigning smiles to uncover the natural artistry behind them.

A 2002 graduate of the Boston University School of Dental Medicine, Dr. el-Malecki is recognized
by the Leading Physicians of the World as one of the world’s top cosmetic dentists and was recently honored as a “Doctor of Excellence.” He is also an active member of the American Academy of Cosmetic Dentistry, where he develops innovations in cosmetic dentistry and encourages the highest standards of ethical conduct and responsible patient care.

Dr. el-Malecki believes in the power of education and communication, sharing his expertise by teaching and guiding patients through the cosmetic dental process. Through his enlightening and positive approach, he has become a trusted source for information and comprehensive treatment. He works closely with an expert team of various dental specialists, enabling him to meet the unique goals and desires of each patient, while also addressing the health and function of their smiles. Dr. el-Malecki is certified in dentistry in Boston and in Dubai, where he works up to four times a year.

Laura Simon, DMD Cosmetic Dentistry

Dr. Laura Simon graduated from Boston University in May 2006, with high honors. At graduation, Dr. Simon was elected to be a member in Omicron Kappa Upsilon by Lambda Mu Chapter. In addition, Dr. Simon was recognized by BU for outstanding achievement and excellence in patient and practice management.

Since graduation, Dr. Simon has been taken several courses in hands-on dental implant placement and restoration in NY’s Montefiore Hospital and at Engel’s institute, courses in esthetic and cosmetic dentistry and Digital Smile Design.

Dr. Simon’s passion lies in treating her patients in the gentlest way possible with the help of the latest technologies and improve the patients’ dental health, appearance and self-esteem by creating the smile of their dreams.
Dr. Laura Simon’s hobbies are skiing, playing tennis, cycling and cooking.

David Shane, DMD Cosmetic Dentistry

Dr. David Shane was born in Johannesburg, South Africa and moved to Newton, MA with his family in 1994. He attended Boston College in 2006 and received his Bachelor of Science degree in 2010. From there he went on to study at The Tufts University School of Dental Medicine and graduated with his D.M.D. in 2011.

Dr.Shane specializes in Adult and Cosmetic Dentistry. His empathetic and caring nature are his strongest attributes and his patients will tell you that they are put at ease from the moment they are seated in his chair. His approach to dentistry is to provide comprehensive dental care, while minimizing pain and using the most advanced techniques available. Dr. Shane is also kind, compassionate and patient. His excellence in dentistry has been acknowledged through numerous top doctor awards throughout the years. He focuses on beautiful esthetics and attention to detail to achieve the best results possible.

Dr. Shane’s passion for dentistry is unrivaled. However, he also enjoys working out, listening to music and trying new restaurants in his free time.

Monaf Alyassi, BDS, DMD, CAGS Endodontics

Dr. Alyassi is a graduate of Tufts University School of Dental Medicine, receiving his Doctor of Dental Medicine degree in 2002 and his Advanced Education Program in Endodontics in 2008. Dr. Alyassi is a welcome addition to the staff, providing patients specialized dental treatment right here at Boston Dental.

Vi T. Ngo, DMD – General Dentistry

Born and raised in California, Dr. Ngo earned her Bachelor of Science degree in Psychobiology from the University of California, Los Angeles. Dr. Ngo moved to New England, where she received her Doctor of Dental Medicine degree at Tufts University School of Dental Medicine. With her happy smile and gentle touch, Dr. Ngo strives to provide the best quality of care and the most comfortable dental experience to all her patients – both children and adults. Dr. Ngo is passionate about staying up to date with current techniques and technologies in dentistry and is always finding ways to further her training.

David Joey Chang, DMDOral Surgery

Dr. Chang is an Assistant Professor, Director of the pre-doctoral program in Oral and Maxillofacial Surgery. He is also an attending in Oral and Maxillofacial Surgery at Tufts Medical Center. He has been on the faculty in the department of Oral and Maxillofacial Surgery since 2012. He received his Bachelor of Science degree from Boston University and his Doctor of Dental Medicine degree from Tufts University School of Dental Medicine. He completed his Advanced Education Training in Oral and Maxillofacial Surgery from Tufts University School of Dental Medicine and Tufts Medical Center. His clinical interests include maxillofacial trauma and reconstruction, obstructive sleep apnea and orthognathic surgery, and implant surgery.

Giac Dang, DMD – Periodontics

Dr. Dang graduated at the top of his high school class in Dracut, MA in 2003. He earned a B.A. degree with honors from Tufts University and went to the Tufts University School of Dental Medicine in 2007. At Tufts Dental, Dr. Dang received multiple scholarships and honors, including recognition for his achievements on the national board examinations. After receiving his Doctor of Dental Medicine degree in 2011, Dr. Dang decided to specialize in Periodontics to further his training on complex dental implant procedures, bone augmentation, and soft-tissue grafting techniques. He graduated in June 2014 with a certificate in Periodontology from Tufts University School of Dental medicine and is happy to be returning to Boston to practice periodontics. As a specialist, Dr. Dang strives for perfection in his work (periodontal, regenerative, and implants) and loves interacting with and helping his patients. He is proud to be recognized as a Diplomate of the American Board of Periodontology.

Shahrzad Khorashadi, DMD – Orthodontics

Dr. Khorashadi is a diplomat of American Board of Orthodontics and a graduate of Harvard School of Dental medicine (Cum Laude, in a special field). She completed her orthodontic specialty training at Tufts School of Dental medicine. Prior to pursuing orthodontic training, Dr. Khorashadi practiced general dentistry for children and adults and served as a part-time clinical instructor at Harvard School of Dental Medicine teaching clinic. She enjoys working with her patients and appreciates the art of creating a beautiful smile.

Dr. Khorashadi’s professional affiliations include the American Association of Orthodontics and the American Dental Association. In her free time, she enjoys fine arts, traveling, hiking, playing the violin, and spending time with her family and friends.

Katerina Kostagianni, DMD – Cosmetic Dentistry

Dr. Katerina Kostagianni is a Prosthodontist with extensive experience in advanced Esthetic and Implant dentistry. She received her DDS from University of Athens (Greece) and her DMD from Tufts School of Dental Medicine. In 2014 she earned her Certificate and Master’s Degree in Advanced Prosthodontics at the University of Alabama. Afterwards, she joined the Implant Periodontal Prosthodontics Fellowship at the University of Maryland, where she further enhanced her skills in Implant Dentistry and complex implant restorative procedures. Currently, she serves as an Assistant Professor in the Post-Graduate Esthetics Clinic at Tufts School of Dental Medicine.

Dr. Kostagianni is committed to a high quality care with a personalized and detail-oriented treatment for her patients. Her main focus is on digital smile design, minimally invasive dentistry, implant dentistry and full mouth reconstructions. She is currently a member of the American College of Prosthodontics, the Academy of Fixed Prosthodontics, the Academy of Osseointegration and the American Dental Association.

In her free time she enjoys traveling, sailing and spending time with friends and family.​

Gillian Weeks, DMD – General Dentistry

Dr. Gillian Weeks is a general dentist and has been working at Boston Dental since 2018. She obtained her Bachelors Degree from The George Washington University and went on to receive her DMD from Tufts Dental School in 2017. Dr. Gillian Weeks is devoted to patient education and prevention and strives to provide stress-free and high quality dental care. Dr. Gillian Weeks is a member of the ADA and MA dental society and holds herself accountable for knowing the latest techniques and technology.

Outside of the dental office, Gillian enjoys traveling to the Cape with her family and being active- kayaking, snowboarding, and biking.

Kelly Koch, DMD – General Dentistry

Dr. Kelly Koch was born and raised in Grand Rapids, Michigan. She always knew she wanted to be a dentist from a young age as she loved how the field combined her passion for art and interest in the sciences. Dr. Koch attended the University of Michigan where she earned a B.S. in Biology, and continued to Boston where she received her Doctorate of Dental Medicine from Tufts University School of Dental Medicine in 2017.

It is Dr. Koch’s goal to make every patient feel comfortable while providing gentle, comprehensive care and helping them achieve their perfect smile. When not practicing dentistry, Dr. Koch loves to cook and bake, play the piano and travel.


Boston Dental Centers located at Downtown Crossing Dental (Chauncy St), at Government Center Dental (Court St) and coming soon – Seaport Dental (Boston Wharf).



36 Chauncy Street
Boston, MA 02111




35 Court Street
Boston, MA 02108




22 Boston Wharf Rd
Boston, MA 02210

Coming Dec 2021



252 Jumaira Road
Dubai, United Arabic Emirates
office: 04.222.0222



  • Boston Dental Facebook
  • Boston Dental Twitter
  • Boston Dental Instagram
  • Simple Share Buttons