Stephen Lashen, DDS, Jessica Klein, DMD & Jason Klein, DMD with Lashen Dental Group

Get to know the general and cosmetic dentists at Lashen Dental Group, who serve patients in New Jersey.

Lashen Dental Group in Denville, New Jersey, is the dental practice with a difference, a family difference. Dental expert Dr. Lashen works with his beloved daughter, Dr. Jessica Klein, DMD, and his son-in-law, Dr. Jason Klein, DMD.

Lashen Dental Group has been serving the community since 1979. The work philosophy of the warmhearted dental professionals at this trusted family-run dental practice is that all patients deserve to be treated like family, with personalized and efficient dental care.

From smile makeovers to restorative dentistry and beyond, patients can expect dental education, thorough exams, short wait times, and considerate service. The dentists encourage confident patient decision-making and provide one-of-a-kind treatments that are specially designed to complement complexions and raise self-confidence.

Stephen Lashen, DDS – 

For over 3½ decades, Dr. Lashen has been practicing dentistry and helping others enhance their dental health and general wellness in Morris County, New Jersey. He is joined by his daughter, Jessica Klein, DMD, and his son-in-law, Jason Klein, DMD, at Lashen Dental Group.

Specializing in cosmetic and general dentistry, Dr. Lashen utilizes the latest advanced dental technologies, treatments, and techniques to provide the best possible personalized care. He offers many effective dental services like Invisalign® teeth straightening, dental implants, veneers, crowns, bridges, and fillings. Treating every patient as he would his own family members, he educates them on how to protect and make the absolute best of their dental health. His goal is to deliver exceptional service that results in beautiful and fully functioning smiles.

Extensive experience and training and the ambition to keep learning are part of what allows Dr. Lashen to provide such high-caliber care. He graduated with his Doctor of Dental Surgery (DDS) degree from the New York University College of Dentistry in New York City and continues expanding his knowledge and skills.

Staying connected to the wider dental community, he remains a member of the American Dental Association and the New Jersey Dental Association. He is a past President of the Tri-County Dental Association, and serves as Chairman of the New Jersey Dental Association’s Council on Relief.

Away from the dental office, Dr. Lashen enjoys playing tennis and golf, skiing, as well as playing with his five beloved grandchildren.

Jessica Klein, DMD – 

Dr. Klein is a perceptive and highly knowledgeable dental expert serving patients at Lashen Dental Group. She cherishes the chance to work alongside her family and share the same purpose of helping others enhance their dental health, general wellness, and quality of life. 

Renowned for her friendly nature and attentive care, she specializes in cosmetic dentistry and enjoys working with children. She provides a range of dental services like Invisalign® and ClearCorrect® teeth straightening systems, as well as fillings, crowns, and bridges. 

Academically, Dr. Klein graduated with her Doctor of Medicine in Dentistry (DMD ) degree from the University of Medicine and Dentistry of New Jersey in Newark. She believes a true expert and professional never stops learning so she enjoys learning and improving her dental knowledge and skills.

Always striving to deliver the best possible personalized dental care to her patients, she uses innovative technologies and techniques and delights in turning a vision into a dazzling, healthy smile.

When she is not at Lashen Dental Group, Dr. Klein is a proud and busy mother of five.

Jason Klein, DMD – 

Recognized as a kindhearted and vigilant dentist, Dr. Klein offers a range of high-quality dental treatments at Lashen Dental Group. There, he offers many valuable dental services, including fillings, crowns, bridges, teeth whitening, dental bonding, and Invisalign® teeth straightening.

With ample experience in cosmetic and general dentistry, Dr. Klein’s objective is to promote dental wellness and optimal dental hygiene and self-care. He takes time to get to know the unique needs of every individual and determine the best ways to create beautiful, healthy smiles.

Before embarking on his professional journey, he attended the University of Pennsylvania in Philadelphia and Yeshiva University in New York City. He graduated with his Doctor of Medicine in Dentistry (DMD) degree from the University of Medicine and Dentistry of New Jersey in Newark and completed his residency at NewYork-Presbyterian Queens Hospital in New York.

From digital dentistry to Invisalign, Dr. Klein researches the best advanced and innovative dental treatments and technology that allows him to continue to deliver the high standard of care his patients have come to expect.

When he is not providing exceptional dental care, he is the proud father of five and enjoys spending valuable time with his family.

Dentistry, also known as Dental and Oral Medicine, is a branch of medicine that consists of the study, diagnosis, prevention, and treatment of diseases, disorders, and conditions of the oral cavity. Dentists diagnose and treat dental issues and help patients develop better oral hygiene regimens. They clean teeth, correct bite issues, perform surgeries and extractions, and perform other duties to ensure that the teeth and mouth are healthy. 

Learn More about Lashen Dental Group:

Through Dr. Stephen Lashen’s findatopdoc profile,

Through Dr. Jessica Klein’s findatopdoc profile,

Through Dr. Jason Klein’s findatopdoc profile,

Or through Lashen Dental Group,


FindaTopDoc is a digital health information company that helps connect patients with local physicians and specialists who accept your insurance. Our goal is to help guide you on your journey towards optimal health by providing you with the know how to make informed decisions for you and your family. 

Karen Johnson

Karen Johnson is an Associate Content manager for FindaTopDoc and responsible for working with distinguished physicians in documenting their significant accomplishments in their field. Karen is a CPR instructor and is a member of her local theater group.