About the practice

A Berkeley dental practice built around one job: treating chronic halitosis at its source.

We are not a general dental practice that also treats bad breath. We are a halitosis-focused practice that uses general dentistry as one tool among several — alongside halimeter VSC testing, periodontal therapy, dry-mouth management, and ENT-coordinated care.

25+ years treating halitosis
1 of few Bay Area halitosis-focused practices
Halimeter VSC testing in-office
Berkeley Regent St · Mon–Thu

Our approach

We diagnose before we treat. Most halitosis cases we see have already been through standard dental care without lasting results. The reason is almost always the same: the underlying source was never identified, only the symptoms addressed.

Every patient starts with a halimeter VSC reading and a focused clinical exam. From there we match the treatment to the dominant source — tongue bacteria, periodontal pockets, sinus drainage, dry mouth — and re-measure to confirm the protocol is working.

We intentionally do not produce or manufacture the products we recommend. That would be a conflict of interest. We use only what independent clinical research has shown to be effective.

The team

People who actually answer the phone.

Halitosis Specialist · Berkeley, CA

Dr. Teah Nguyen, DDS

Dr. Trang (Teah) Nguyen is a compassionate, detail-oriented dentist who views dentistry as both science and art. A graduate of the University of Southern California's Ostrow School of Dentistry, she has cared for patients of all ages and backgrounds — children to seniors. She is proud to continue Dr. Dailley's legacy of excellence with a modern, patient-focused approach that blends advanced techniques with a gentle touch. Outside the office, she rock climbs, crafts, photographs, reads, and tends to her indoor plants.

DDS, Ostrow School of Dentistry, USC
Continuing 25+ years of halitosis care
Berkeley, CA

Founder · The Breath Cure

Dr. Anthony Dailley, DDS

Dr. Anthony Dailley earned his degree in Cell and Molecular Biology from San Francisco State University and graduated with honors from the University of the Pacific School of Dentistry in 1981. He has served as a faculty member at Pacific's School of Dentistry and is actively involved in halitosis and oral-health research. Dr. Dailley is also a co-founder and former board member of NovaBay Pharmaceuticals, a publicly held biopharmaceutical company based in Emeryville, California.

DDS, University of the Pacific (Honors)
B.S. Cell & Molecular Biology, SFSU
Co-founder, NovaBay Pharmaceuticals

Patient Coordinator

James Schweppe, Ph.D.

James Schweppe holds a Ph.D. in Chemistry with a specialization in biological chemistry. He served as a Postdoctoral Scholar at UC Santa Cruz studying the genomic RNA of the SARS coronavirus, then as Program Chair of Biotechnology and Bioinformatics at UC Santa Cruz Extension in Silicon Valley before returning to teaching. When he's not in the classroom or the clinic, he's outdoors cycling or rock climbing.

Ph.D. Chemistry · biological chemistry
Former UC Santa Cruz Extension faculty
Patient coordinator since 2024

Patient stories

What patients say after a focused halitosis exam.

Reviews shared by patients of the Center for Breath Treatment and its founding practice. Verified Google reviews.

I want to first start off by saying thank you Dr. Dailley!! I highly recommend you! You and your staff gave me a pleasant experience. I am most pleased with my issue being solved successfully!! I have more confidence when interacting with others. If you have issues with halitosis definitely go see Dr. Dailley!

Dr Dailley was spot on in solving my halitosis problem after consultation!!! Very informative and the treatment was a success!!! Highly recommend to see him!! Thank you dr Dailley, a life changing moment!!!

Good attention to details. Diana at front office very helpful. Amazing experience. Highly recommend Dr. Nguyen!

Dr Teah took over Dr Dailley's practice since he retired. She is an excellent Dentist, caring, considerate and very profesional. Highly recommend you see her!!!

Dr. Dailley has been my dentist for close to 10 years. As someone with complex dental needs, I was intimidated by different doctors after my childhood dentist retired, but Dr. Dailley’s careful treatment plan, steady hand, and amazing staff helped inspire my confidence in his entire practice. I recommend him to everyone I know. He looks after each of his patients and I appreciate his thoughtful approach that keeps his patients’ best interests in mind.

I can't say enough good things about Dailley Dental Care. Dr. Dailley and his staff are amazing. They are so friendly and helpful. They always get me right in and it seems like they take the time to get to know all of the patients and take a personal interest in each and every case. Most importantly the care is AMAZING. Dr. Dailley pretty much rebuilt my entire mouth and the results are so beautiful. I have a perfect smile now. I couldn't be happier!!! Definitely 5 stars!

I loved Dr. Dailley! amazing service! him and his office make sure you feel at home when there! all the girls are sweet and welcoming, I am glad I went to him...the dentist I was seeing before him was actually out for my money rather than my dental care!! glad I left that place and came here.....and not to mention the fact that he also takes his time to write you a thank you note for coming to his office! super sweet! definitely keeping him as my dentist!

Dr.Dailley and his team always do a great job. Getting appointment and arranging the appointment are really easy. The office is always clean. Dr.Dailley and his crew's hand are very gentle. There is no waiting time, they do their job in the right time. Thank you so much for their awesome work!

This was the best dentist visit experience I’ve ever had. I learned so many things about my current dental health. Dr. Dailley was very detailed and everyone in general guided me through the process, gave me tips, and explained what some of the dental terms were. Everyone was super friendly. The dental assistants would also check up on me often throughout the entire process. I felt comfortable and valued.

My wife and I have been seeing Dr. Dailley for several years now and we are more than satisfied with the level of care that we are receiving from him and his staff. Dr. Dailley fully explains his treatment plans for us, including relevant treatment options and accurate estimates of cost, and then carries out the agreed upon plans in a friendly, compassionate and highly professional manner. We unreservedly recommend Dr. Dailley and his fine support staff for all one’s dental needs.

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