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EGLINTON 416-481-9131 DANFORTH 416-461-0831 EMERGENCY 416-716-0476

You’re not just a patient, you’re a part of our family!

Dr. Matthew Orzech & Associates want you to be confident knowing you are being treated by a team of highly trained and skilled dentists and dental hygienists. We stay abreast of the latest products and techniques through our ongoing commitment to continuing education and membership in various professional dental associations.

Our Dentists


Dr. Matthew Orzech owns and operates a full-time dental practice with his professional team.

He performs all aspects of general dentistry including: endodontics, implant placement and restoration as well as extractions (both complex and simple) minor periodontal surgery as well as routine maintenance for his patients.

Dr. Matthew Orzech earned his Honours Bachelor of Science degree at the University of Toronto followed by a DDS degree graduating Dental School at Northwestern University in Chicago. He furthered his experience through a one year General Practice Residency at the Erie Country Medical Center in Buffalo, New York. Dr. Orzech is currently a Supervising Clinician at George Brown College Restorative Dental Hygiene Program. He was the principal Dentist for the Humber College “Wellness Clinic”. He volunteered his dental services at the Scarborough Urban Health Outreach Clinic.


Dr. Martin Kellerstein is an experienced and well versed dental practitioner. He received his DDS in 1971 from the University of Toronto. He has serviced the dental needs of the Danforth community for the past 42 years prior to joining Dr. Matthew Orzech and Associations.

Dr. Kellerstein’s wealth of experience in the dental field is evident by his prior affiliations as President of East Toronto Dental Society, the Board of Governors for the ODA, the Academy of Dentistry Toronto and his service as a Clinical Instructor at the University of Toronto in the Restorative Dentistry Program. He is passionate about his profession and strives to continually lend his expertise to patients in a caring and supportive manner.

He is available at Danforth Office.


Dr. Marvin Katz was born and raised in Toronto. He received his Bachelor of Science degree from the University of Toronto in 1973, and in 1977 his Doctorate of Dental Surgery from U of T followed. A life-long learner, Dr. Katz insures he stays current with dental technology and practices by seeking out and participating in continuing education opportunities. Dr. Katz is a member of the Toronto Crown and Bridge Study Club and Alpha Omega Fraternity.

He lives in Thornhill with his wife, and cherishes the time they spend with their three children. An avid sports fan, Dr. Katz says, “I make no apologies for being a die-hard Toronto Maple Leafs fan – go Leafs go!”


Dr. Sanjay Khoosal was born in Sioux Lookout Ontario, he attended Western University and completed his studies in the University of Toronto, Faculty of Dentistry. His mission is to provide comprehensive dental services to all patients in an environment that is save, reassuringly pleasant and comfortable.

Dr. Sanjay Khoosal is a proud member of the Ontario Dental Association as well a member of the Royal College of Dental Surgeons of Ontario and continuously seeks out training and professional development opportunities that allow him to remain aware and knowledgeable about latest technology and keeping up with new developments. What he enjoys most about dentistry is meeting and interacting with patients and providing an essential service.

When he is not working, Dr. Khoosal enjoys traveling and listening to music.

Our Team
Highly Trained And Skilled Dental Hygienists Christal Chuback

Christal Chuback

Dental Hygienist

Christal is a highly regarded professional with extensive experience in the dental field. She graduated from George Brown College with a Level I and II in Dental Assisting and then furthered her education by achieving her Dental Hygiene Degree at the Toronto College of Dental Hygiene. She is an enthusiastic and caring asset to the office that is valued by her patients and the entire dental team alike.

Dental Hygieneist Thuy Truong - Teeth Cleaning

Thuy Truong

Dental Hygienist

Thuy is an enthusiastic addition to our dental team. She completed her Dental Hygiene Degree at George Brown Dental College and offers patients a strong commitment to providing preventative dental health care.


Dental Hygienist Ricardo Nunes

Ricardo Nunes

Dental Hygienist

Ricardo is a diligent and enthusiastic professional hygienist. He graduated from Yorkville College and has been a vibrant asset to the practice. His approachable manner and humorous nature readily puts patients at ease.

Dentist Assistant Jenny Laut

Jenny Laut

Dental Assistant, Eglinton & Danforth Office

Jenny has been a dental assistant for over 17 years since graduating from the Toronto School of Business in the Dental Chair Side Assisting Program. Her enthusiasm and commitment to patients and the office is clearly evident in her endless patience and easygoing manner. She thrives in every aspect of her job and enjoys the challenges of a busy schedule of assisting Dr. Orzech with complex dental treatments. Jenny is always eager to learn new skills and has furthered her studies through various continuing education courses held at George Brown College as well as attendance at ODAA meetings and professional seminars.

Dental Hygienist

Loan Truong

Dental Hygienist - Eglinton

Graduated from Georgian College in 2006 with Golden Scalar Award and been working in the field for 17 years. She is very effective, provides gentle hygiene care with her exceptional communication skills and interpersonal skills.

She enjoys seeing the difference in patients’ oral health, the opportunity to educate patients on proper oral hygiene care and meeting pleasant people on a daily basis.

Luisa Faria Business Manager Dr. Matthew Orzech & Associates

Luisa Faria

Business Manager

Luisa joined our office in July 2012. She has had an extensive experience in the dental field for over 20 years. She has been instrumental in establishing an office with unparalleled efficiency and customer service she is also trilingual in English, Portuguese and Spanish. Luisa is responsible for staff oversight and all facets of clinical and financial management. She continues to stay abreast of the latest developments in practice and clinical management courses and dental coding workshops. She has been a great addition to our team.

Nancy Colosimo

Office Administrator – Eglinton

As a full-time receptionist, Nancy’s inviting smile is the first welcome sign patients receive upon walking into Dr. Orzech’s Eglinton office. Her warm personality and efficient manner make each trip to the dental office a pleasant one.

Dental Offices Dr. Matthew Orzech & Associates

Claudia Zuniga

Office Administrator- Danforth & Eglinton

Claudia is an efficient and valuable asset to our dental team. Her extensive business administration experience in the dental profession has contributed greatly to the overall management and productivity of the practice. She continues to tackle new challenges with enthusiasm, kindness and respect making her a great addition to our office.

Dr. Matthew Orzech & Associates

Mimi Kim

Dental Hygienist

Mimi graduated from Durham College obtaining her Dental Hygiene Diploma. She loves educating her patients on their oral health and believes that creating a healthy oral health environment leads to overall better health. Mimi truly loves her work in dentistry and has a heart for every patient she treats.

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