Dentistry That Puts Patients First
From preventive care to cosmetic and implant dentistry, you can expect thoughtful planning, meticulous attention to detail, and care that feels personal.

Alexander Gruenstein, DDS is a locally raised dentist with advanced training and a strong commitment to patient centered care. He earned his undergraduate degree from the University of Rochester and his dental degree from Columbia University College of Dental Medicine, completed extensive hospital based training through a General Practice Residency at Newark Beth Israel, and completed a Chief Resident year at Saint Barnabas Hospital in the Bronx.
Dr. Gruenstein is a Fellow of the International Congress of Oral Implantology and brings a thoughtful, honest approach to every patient visit. His focus is on clear communication, high quality care, and long term oral health without pressure.





We never push treatment. Instead, we focus on education, transparency, and long term oral health.
At Emerald Dentistry, we believe great dental care starts with listening. Our Yonkers office was designed to feel calm, welcoming, and respectful of your time, your comfort, and your individual needs. Whether you are here for routine care or something more advanced, our goal is simple: deliver excellent dentistry without pressure and without shortcuts.
Every recommendation is made with your best interest in mind, and every question is welcomed. Our patients value the fact that we take the time to explain options clearly and respect their decisions.

Our practice features all new technology and uses only the highest quality materials to ensure accuracy, durability, and optimal results. From digital diagnostics to advanced treatment planning, every detail of our office was created to enhance both patient comfort and clinical outcomes.
Patients also appreciate the convenience of our location at 970 North Broadway, Suite 211, Yonkers, NY 10701, with a large parking lot available in both the front and back of the building. Easy access and stress free parking are part of the experience.

June 15, 2026
Maintaining good oral hygiene is essential for preventing cavities, gum disease, and other systemic health issues. This comprehensive guide delves into the science behind plaque formation, biofilm dynamics, and enamel erosion, providing actionable steps to craft an effective daily routine tailored to individual needs. From proper brushing techniques and interdental cleaning to the role of mouthwash and tongue scraping, learn how these elements work together for optimal dental health.

June 15, 2026
Dental restorations go beyond mere repairs, blending advanced materials like biocompatible ceramics with cutting-edge technologies such as CAD/CAM systems. At Emerald Dentistry, our approach to dental restoration combines precision and artistry for results that look good and feel great. From crowns and bridges to veneers and implants, we create durable and aesthetically pleasing restorations tailored to each patient's unique needs.

June 15, 2026
Spring offers the perfect opportunity to refresh your oral care routine. As nature awakens, so can our approach to dental health with preventive strategies tailored to seasonal shifts and gentle cleaning techniques for a vibrant smile. From adjusting brushing habits to incorporating fluoride treatments, this article explores modern techniques and innovative tips for maintaining optimal oral wellness year-round.


Dental implants offer one of the most reliable and natural looking ways to replace missing teeth. At Emerald Dentistry, implant care is carefully planned and tailored to each patient, using advanced technology and high quality materials to support long term function and aesthetics. Whether you are missing a single tooth or need a more comprehensive solution, our approach focuses on comfort, stability, and results that feel confident and secure for years to come.


We believe trust is built through transparency. Treatment recommendations are always explained clearly, and patients are never pushed into care they do not need. Our role is to guide, inform, and support your decisions.

Our office is equipped with all new technology and premium materials to ensure accurate diagnostics, efficient care, and lasting results. This allows us to deliver dentistry that is both comfortable and dependable.

We work with most insurance plans and submit claims for you, even though we are out of network. Multiple payment options are accepted, and our team is happy to answer questions so everything stays clear and stress free.
If you are looking for a dental practice that values honesty, comfort, and high quality care, we invite you to experience Emerald Dentistry. From your first visit onward, you will notice a difference in how we listen, explain, and care for our patients.