About

Our family oriented practice has always put patients first. After 75 years, we're humbled by the number of friends and loyal patients we've made.
James Street Dental Arts, PC may be a new name, but it has been deeply rooted in Eastwood for 60 years. Dr. Edward Rapson and Dr. Richard Gladziszewski built the present building in 1955 when they decided to join together in a group family dental practice. Dr. Rapson had a thriving practice on Grace Street, in his mother’s house. Dr. Gladziszewski practiced above the Palace Theater in Eastwood until a fire destroyed much of his office. They built their new office at the present site of 3309 James Street. Betty McLaughlin was hired as office manager and remained there until her retirement in the fall of 1992.

Lawrence S. Corso II, DDS

Dr. Corso was born and raised in the Syracuse area. He attended Christian Brothers Academy then moved with his family to Florida where he graduated from Cape Coral High School. Upon returning to Syracuse, Dr. Corso did his undergraduate work at Syracuse University. He then graduated from the State University of New York at Buffalo, School of Dental Medicine in 2000 and completed his General Practice Residency at St. Joseph's Hospital Health Center in Syracuse. Dr. Corso was invited to join our practice in 2001.

Community service is important to Dr. Corso and he volunteers at the St. Joseph's Hospital Health Center Dental Clinic where he works with the dental residents. At St. Joseph's Dr. Corso coordinates the dental implant program and works with the residents in all phases of implant dentistry. He is also on the Board of Directors for the Onondaga County Dental Society and is on the Board of Directors of Advocates Inc. Advocates is an organization that helps people with developmental disabilities fully participate in their home, schools and communities in a meaningful way.

He is a member of the American Dental Association, New York State Dental Association, Fifth District Dental Society, Onondaga County Dental Society, Spear Study Club and the Syracuse Dental Study Club. Dr. Corso is on the medical staff of St. Joseph's Hospital Health Center.

On a personal note, Dr. Corso has been married to his wife Lisa since 1996. They have two children. When not in the office Dr. Corso enjoys, woodworking, many outdoor activities and other activities with his family.

Gregory L. French, DMD

Dr. French has been practicing dentistry for over 3 decades. He graduated from Waterloo High School in 1977. He received his BS in Biology, cum laude, from Niagara University in 1981. He earned his DMD from the University of Pennsylvania School of Dental Medicine in 1985.

Dr. French maintains two dental practices. James Street Dental Arts in Syracuse and French Family Dentists in Waterloo, NY.

Dr. French is a member of the American Dental Association, the New York State Dental Society, and the Onondaga County Dental Society.  He is a committee member for Peer Review for the Fifth District Dental Society. Dr. French stays up to date on the newest information and techniques through continuing education with The Syracuse Dental Study Club and the Spear Study Club. To date, Dr. French has completed over 900 hours of continuing education credits.

Dr. French is proficient in all phases of General Dentistry, including full mouth rehabilitation, implant dentistry, and cosmetic dentistry. He is also a Preferred Provider for Invisalign orthodontics. He resides in Onondaga Hill with his wife, Nancy, and two sons, Zachary and Andrew.

Yvonne Tsay, DDS

Dr. Yvonne Tsay was born and raised in Los Angeles, CA. She received her Doctorate of Dental Surgery Degree from the State University of New York at Buffalo. After graduating magna cum laude, Dr. Tsay continued at SUNY Buffalo to complete her residency in Advanced Education in General Dentistry. During her residency, she treated many dentally complex patients, which allowed her to, hone her craft for an additional two years after dental school. As a practicing dentist since 2008, her patients know her as being patient, gentle, and informative. She is always finding ways to improve care to her patients, by continually taking continuing education courses throughout the year. When she’s not engrossed in dentistry or cleaning her house, you can find her exploring Syracuse with her husband and son, and facetiming with her family.

Stephen J. Streiff, DMD

Dr. Streiff is a native of Syracuse. He graduated from West Genesee High School, Onondaga Community College, and Le Moyne College, receiving his dental degree from the University of Pittsburgh School of Dental Medicine in 2015. He then continued his training at Upstate Medical University where he completed his general practice residency in 2016. Dr. Streiff was invited to join our practice in 2016 and also works with Dr. French at his Waterloo, NY office.

He continues to educate himself in advances in dental medicine by attending dental seminars, courses and through his association with the American Dental Association, Academy of General Dentistry, Fifth District Dental Society, and Onondaga County Dental Society. He has a special interest in all aspects of preventative and restorative dentistry.

Dr. Streiff resides in Camillus with his wife Sarah and three kids where they are parishioners of Holy Family Church. His personal interests include hockey, golfing, fishing, skiing, and of course, the Syracuse Orange.

A Generational Practice

Drs. Rapson and Gladziszewski practiced alone until the late 1970’s when Dr. Richard Giarrusso joined them. After a short time, Dr. Giarrusso decided he wanted to practice dentistry on his own so he moved on. In 1977, Dr. Timothy O’Brien and Dr. Donald (Tom) Sheridan were exiting the Navy and joined Drs. Rapson and Gladziszewski. The building was enlarged when they came in. The four dentists each had two operatories and there were five rooms for dental hygienists.

Dr. Gladziszewski retired in 1986. That is when Dr. Paul Edwards joined the partnership. Dr. Gregory French joined a few months later. At that time, Dr. Rapson worked part time until the end of 1992. Dr. O’Brien retired in 2001. When he retired, Dr. Lawrence Corso was recruited as a partner.

For many years, the practiced consisted of Drs.Sheridan, Edwards French and Corso. Dr. Sheridan decided to retire in the summer of 2015. As he retired, Dr. Yvonne Tsay joined the practice. She is a graduate of UB and had been practicing in California prior to relocating in New York. The newest dentist in the practice, Dr. Stephen Streiff, joined the practice after completing his residency at Upstate. The staff has grown to include 5 dentists, 7 dental hygienists, 5 dental assistants, 4 front desk personnel and the office manager.

In 2005, the office underwent a major remodeling. On the exterior, after 50 years, a trussed roof replaced the old flat roof and gained curb appeal. Changes to the interior included a reconfiguration of the waiting room and reception area. This allowed a better patient flow for checking patients in and out. New higher efficiency lighting was installed throughout the office, new suspended ceilings and flooring was installed. The operatories sport prefinished wood floors and the halls are carpeted. New windows that open were installed on the north side of the building. There now is a consultation room with a large screen TV to display treatment plans too.

Equipment updates have been ongoing. Three years ago we acquired our iTero digital impression unit. It is a high tech method of impression-taking that allows us to email the impression to the labs. It is less burdensome on the patients too. All operatories are equipped with computers and we have updated to digital x-rays. By using digital sensors, the small amount of radiation exposure used previously was cut to about 75% of the previous exposure. The panorex unit allows us to take whole-mouth x-rays needed by oral surgeons, orthodontists and other specialists. It saves the patient time when referred out. Digital x-rays can even be sent directly to the specialists by email.

As part of the updated technology, implants and Invisalign clear braces are now offered in the office. These are part of the expanded duties the doctors provide for the benefit of the patients.

Many of the present patients are either original patients of Drs. Rapson and Gladziszewski or the 2nd or 3rd generation of them. The practice prides themselves in being family oriented. They try to treat each patient as an individual and not a number. Most of the employees have been there over 20 years. In this day and age, it is comforting to know that you will see a familiar face when you walk through the door.

Recently, Dr Edwards retired after 32 years of providing care to our patients. We wish him happy retirement.

Meet the Staff

Why JSDA?

Experience that matters
Our clinical team is led by renowned clinicians with decades of experience.
Comfortable environment
We want your dental visit to be low stress and our office will make you feel at ease.
Science-based care
We take advantage of all the latest research and technology.
Upfront pricing
No insurance. We don't hide what we charge.
No judgment zone
Your past oral care is history. We're focused on your future care.
Short wait times
We'll have you in the exam room before you know it.