Johanna Lerzundy, DDS, PA

12/18/2025

This is what an untreated cavity really looks like — from the inside.

The dark area at the top is advanced dental caries, where bacteria have destroyed the enamel and dentin. Beneath it lies the pulp chamber, rich in nerves and blood vessels — shown here inflamed and exposed.

Once decay reaches this depth, pain is no longer just “toothache.” It is nerve infection, inflammation, and a gateway for bacteria to enter the bloodstream.

At this stage, a simple filling is no longer enough. Treatment usually requires root canal therapy or extraction — both more complex, costly, and invasive than early care.

02/20/2025

Due to road conditions after the winter weather yesterday, we will be closed today, Thursday 2/20/25. Someone will call you to reschedule once we are back in the office. Stay safe!

02/21/2024

What a sweet gesture from Smith and Heymann Orthodontics this morning! We thank you for our treats!

12/13/2023

We enjoyed a night out last night. It’s awesome when you are friends with the people you work with.

10/16/2023

Happy Boss’s Day to the best out there! Thank you for all you do for us!

09/10/2023

Dental Amalgam, Mercury Exposure and Human Health Risks Throughout the Life Span

The infographic explores the various ways that the use of dental mercury in amalgam fillings poses human health risks.

06/07/2023

🦷**Join our private dental practice as a Registered Dental Hygienist (RDH)**🦷

Our small, private dental practice is seeking an exceptional RDH to join our team and provide excellent oral care to our patients. If you are passionate about oral health, possess strong, interpersonal skills, and thrive in a collaborative environment, we want to hear from you! We offer competitive compensation and a comprehensive benefit package, including:

• Competitive Salary 
• Retirement Plan
• Paid time off and holidays
• Uniforms provided
• Professional development assistance
• All necessary PPE provided

How to apply: If you believe you would be a valuable addition to our already awesome team, please submit your resume to [email protected].  We are excited to review your application and invite you for an interview. 

www.jldsspa.com

We believe in a minimally invasive, financially conservative, environmentally responsible and biologically sound approach to dentistry.

Conveniently located in Durham, NC. Give us a call to schedule a consultation.

04/16/2023

Dental Crowns: Everything You Need To Know

03/08/2023

RDH needed for North Durham practice for Thursday 3/9/23. 7:45 am to 3 pm, one hour recalls, one hour lunch. Message us if you’re available. Great office!

02/16/2023

Researchers at NYU College of Dentistry have developed a single score to describe the level of cytokines in saliva, and this score is linked with the severity of clinical gum inflammation, according to a study published in the journal PLOS ONE.

02/08/2023

Are you looking for ways to improve your dental hygiene?

Here are some tips to help you maintain a healthy smile:
1) Brush your teeth twice a day for at least two minutes each time.

2) Floss at least once a day to remove plaque and food particles from between your teeth.

3) Replace your toothbrush every three to four months or sooner if the bristles are frayed.

4) Avoid sugary and acidic foods and drinks.

5) Visit your dentist regularly for check-ups and cleanings.

6) Quit smoking or using to***co products to protect your oral health and overall well-being.

7) Consider dental sealants to protect your teeth from decay especially for children.

8) Practice good oral hygiene habits from an early age to establish a lifetime of healthy teeth and gums.