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WE ARE CREATING 
‘VISUAL BIOTECHNOLOGY
A.I. DENTALCARE’ 
FOR THE NEXT GENERATION.

OUR WHY

엄마의 마음과 
의료전문의 책임감으로,  
아이들의 건강한 양치 습관을 
진심으로 고민합니다.

더보기
(주)FunDo는 치의학박사와 간호사 엄마가 함께 개발한 양치할 곳을 보여주는 근본치약을 시작으로, 비주얼 바이오테크 기반 AI 앱을 통해 양치질이 부족한 부위를 시각화하고, 게임형 교육으로 양치 습관 개선과 구강건강 증진에 기여하고자 합니다.

치의학박사 유성훈
DR. YOO SEONG HUN


상문고등학교 수석 졸업

연세대학교 치과대학 졸업


연세대학교 치과대학 치의학 박사 (교정과)

연세대학교 치과대학 치의학 석사 (교정과)

연세대학교 신촌세브란스 치과병원 인턴/ 치과교정과 레지던트

연세대학교 신촌세브란스 치과병원 인턴대표/ 레지던트대표 역임


현) 연세아이야기 치과교정과치과의원 대표원장

현) 연세대학교 치과대학 교정학교실 외래교수

현) 서울 아산병원 임상자문의

현) 아주대학교 의과대학 치과학교실 교정과 자문교수

전) 울산대학교 의과대학 외래조교수


치과교정과 전문의

대한치과교정학회(KAO) 정회원

대한치과교정학회(KAO) 평의원회(의결기관) 평의원

대한치과교정학회(KAO) 산하 (사)바른이봉사회 임원

세계치과교정연맹(WFO) fellow

미국교정학회(AAO) international memeber


연세대학교 교정연구회 (세정회) 정회원, 임원

대한설측교정학회(KALO) 회원

대한디지털교정치과의사회(KSDO) 회원

대한구순구개열학회 회원

대한소아치과학회 (KAPD) 회원


(주)한국 MBTI 연구소 전문가자격 수료

(주)한국 MBTI 연구소 어린이 및 청소년 과정(CATi) 수료

치과의사 쌍둥이 아빠의 아이(齒)야기 (www.아이야기.com) Director

Dr.아이야기의 ‘우아달 Project’ Director

Dr.아이야기의 ‘우리아이 홈 치과’ 저자

전) 스마일어게인 교정치과 (강남점) 원장

FunDo co. 대표 정현우 
CEO Sage Jung


이화여자대학교 간호과학대학 간호과학과 졸업

대한간호협회 간호사

미국간호사 NYSED NCLEX-RN 

보건교사 자격증 보유

이화여자대학교 교직 이수 


이대목동병원, 삼성서울병원, 아산병원 실습

압구정고등학교 교생실습 

전) 삼성서울병원 간호사

OUR PRODUCTS

근본치약은 양치 후 칫솔질이 부족한 부위를  보여주는 교육형 헬스케어 치약입니다. 양치 후 치아 표면에 남아 있는 음식물 찌꺼기를 시각화함으로써, 아이부터 성인까지 올바른 칫솔질 습관을 형성하고 구강 건강을 개선하는 데에 큰 도움을 줍니다. 서울대병원·세브란스 포함 200여 개 치과가 거래 중입니다.

동영상 재생

근본치약 (KnBorn toothpaste)을 써야하는 이유 / WHY FUNDO TOOTHPASTE?

  • 하루 한 번, 자기 전 정확한 양치 상태를 점검하며 양치 습관을 개선합니다.

  • 단순한 치약이 아니라, 건강한 치아 습관을 위한 '습관 개선 툴'입니다.

  • 수용성 식용 염색 성분 사용으로 안전하고 쉽게 제거됩니다.

  1. 양치질 해야할 곳을 보여줘 양치질 상태 확인 가능
    – 눈에 보이지 않던 칫솔질이 안된 부위를 파란색으로 시각화하여, 남은 부위를 확인하고 개선할 수 있습니다.

  2. 혀의 세균 제거에 특화
    – 구강 내 세균의 50%가 서식하는 혀의 세정까지 시각화하여 양치질을  개선합니다.

  3. 시린이 개선 성분 포함
    – 인산삼칼슘을 함유하여 시린이 개선에 효과적입니다.

  4. 고불소 1450ppm 포함 -충치예방에 효과적입니다.

  5. 100% 완전한 허가 및 기술보증기금 기술 인증
    – 출원 및 식약처 허가가 완료된 안정적인 기술 기반 제품입니다.

OUR CLIENTS

근본치약은  양치할 곳을 보여주는 치약으로 칫솔질 교육에 효과적인 국내 유일의 제품으로, 특허출원을 완료하였고 서울대병원, 세브란스병원 등 200여개 치과에 공급 중입니다.

더보기

Fun Do 캠페인

"보이니까 즐겁다(Fun), 보이니까 행동한다(Do)"는 우리의 비전을 담아, 아이들에게 양치 습관을 재미있게 심어주고, 행동으로 이어지게 만드는 참여형 구강 건강 프로젝트입니다. 전라북도 정읍 대흥초등학교를 비롯한 일부 초등학교에서 먼저 시작되어, 전국에 있는 많은 보건교사 선생님들과 함께합니다.

Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...

A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...

We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs

Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.

You can check the attachment for a full view..More shots with final designs coming soon.

This is a proposal to add value to a crowdfunding listing pagewe streamline the process without having to make multiple mockups.

Clients easily understand themStyle tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.

we have a lot of fun during this phase.We are working on an exciting project for a company in the investment business. Stay tuned!

Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...

A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...

We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs

Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.

You can check the attachment for a full view..More shots with final designs coming soon.

This is a proposal to add value to a crowdfunding listing pagewe streamline the process without having to make multiple mockups.

Clients easily understand themStyle tiles serve as a flexible starting point that helps us easily communicate the essence of a visual brand for the web.

we have a lot of fun during this phase.We are working on an exciting project for a company in the investment business. Stay tuned!

Hey! Recently we were working on a project for ..We design and build digital products people enjoy using...

A new project is an opportunity to create something unique.We are a Creative Digital Agency based in Buenos Aires, Argentina. We take pride in designing and building...

We look forward to working with you on your next projectAs an interdisciplinary agile team, our production process is flexible, collaborative, and adapts to each client’s needs

Style Tiles are always a good option to show work in progress!We are working on the UX/UI design for a large hotel owners and hospitality management company.

Campaign Partner - 전라북도 정읍 대흥초등학교

아이들의 올바른 칫솔질 습관 형성을 위해,  (주) FunDo 는 전북 정읍 대흥초에 (주) FunDo 치약을 기부했습니다. 보건 선생님의 생생한 지도 아래, 아이들이 눈으로 양치할 곳을 확인하며 즐겁게 양치하는 시간을 함께 했습니다.

2025. 04

Campaign Partner - 전라북도 정읍 덕천초등학교

치아 건강 사각지대를 놓치지 않기 위해, 정읍 덕천초 보건 교사와 함께 양치질 교육이 진행되었습니다. (주) FunDo  치약은 아이들의 양치 행동을 시각화하고, 교육형 치약의 역할을 실천했습니다. 화 

2025. 04

Campaign Partner - 전라북도 익산 이리서초등학교

익산 이리서초등학교 학생들을 위해 (주) FunDo 치약 20개를 기부하였으며, 보건 교육 시간에 양치할 곳을 시각화하는 체험을 통해 아이들이 양치의 중요성을 자연스럽게 체득할 수 있도록 지원했습니다.

2025. 05

Campaign Partner - 서울 성덕여자중학교

사춘기 여학생들의 위생 민감도가 높아지는 시기, 성덕여중 보건 선생님과 함께 올바른 구강관리 습관 교육이 진행되었습니다. (주) FunDo  치약은 양치질 후 칫솔질이 안된 부위를 직접 확인할 수 있도록 하여 ‘건강한 습관 훈련’의 도구가 되었습니다.

2025. 05

OUR NEws

FunDo co. 의 생생한 홍보 
뉴스를 전달합니다.

근본 코퍼레이션, KOTRA 내수기업 수출기업화 지원 대상 최종 선정!
근본코퍼레이션이 KOTRA의 내수기업 수출기업화 프로그램에 최종 선정되었습니다. 이번 선정을 통해 해외 인증, 현지 파트너십, 글로벌 유통 채널 확대를 위한 집중적인 지원을 받게 되며, 동남아시아 및 호주 진출의 교두보를 마련했습니다⋯

2025.05.02

근본코퍼레이션, 중소벤처기업부·기술보증기금 소셜벤처기업 인증 획득!
근본코퍼레이션이 중소벤처기업부와 기술보증기금이 부여하는 소셜벤처기업 인증을 획득했습니다. 염색 치약을 통해 양치 교육 효과를 극대화하는 교육형 구강케어 솔루션으로 사회적 가치와 기술력을 동시에 인정받았으며, 이번 인증을 통해 정부 지원 사업, ESG 연계 캠페인, 글로벌 임팩트 확장의 발판을 마련하게 되었습니다.⋯

2025.04.17

(주)명성씨앤앰-(주)FunDo 공식 계약 체결
(주)FunDo는  국내 치과 전문 수입·유통 기업 (주)명성씨앤앰 과 근본치약의 B2B 유통 총판 계약을 체결했습니다. 이번 계약을 통해 근본치약은 서울대병원, 세브란스병원 등 기존 네트워크를 넘어 전국 200여 개 치과 및 교정과 병의원에 전략적으로 공급되고 있습니다.

2025.04.24

OUR WHY

Rooted in parental care and guided by medical responsibility, Fundodental is dedicated to helping children build healthy oral care habits that last a lifetime.


Founded by a pediatric dentist father and a nurse mother, FunDo Co., Ltd. began with a simple yet powerful idea: a toothpaste that reveals what brushing misses. Today, we build on that foundation with visual biotech–based AI, making children’s oral care visible, interactive, and engaging. By turning brushing into a game-like learning experience, we help children build healthy habits and grow confident, lifelong smiles.

DR. YOO SEONG HUN
Chief Fun Officer, FunDo Co., Ltd.  
Pediatric Orthodontist | Clinical Advisor

Dr. Yoo graduated as valedictorian from Sangmoon High School and earned his DDS, MS, and PhD in Orthodontics from Yonsei University College of Dentistry. He completed his internship and orthodontic residency at Yonsei University’s Severance Dental Hospital, where he later served as Chief Resident. He is currently the Director of Yonsei i-Orthodontic Clinic and an adjunct professor at Yonsei University College of Dentistry. Dr. Yoo also serves as a clinical advisor at Asan Medical Center and as an advisory professor at Ajou University School of Medicine. He previously held an adjunct professorship at Ulsan University College of Medicine. Dr. Yoo is a board-certified orthodontic specialist and an active member of leading professional organizations, including the Korean Association of Orthodontists (KAO), where he serves as a full member, examiner, and committee member. He is also a Fellow of the World Federation of Orthodontists (WFO) and an international member of the American Association of Orthodontists (AAO). Beyond clinical practice, Dr. Yoo has contributed to pediatric oral health education as a director of child-focused dental initiatives, including Dr. i-Orthodontics’ “Our Kids’ Teeth” Project, and as an author of children’s dental health books. He previously served as Director of Smile Again Orthodontic Clinic in Gangnam.


Sage Jung
CEO, FunDo Co., Ltd. 
Registered Nurse

Sage Jung is a registered nurse and healthcare entrepreneur. She holds a Bachelor’s degree in Nursing from Ewha Womans University College of Nursing and is a licensed nurse in Korea. She is also a U.S.-licensed Registered Nurse, having passed the NYSED NCLEX-RN. Her clinical training includes hands-on experience at Ewha Mokdong Hospital, Samsung Medical Center, and Asan Medical Center. She has also completed teaching practicums at Apgujeong High School and clinical nursing practice at Samsung Medical Center. With a strong foundation in both clinical care and education, Sage Jung brings a parent-centered and preventive healthcare perspective to FunDo. As CEO, she leads the company with a mission to bridge medical expertise, parental empathy, and technology to improve children’s oral health habits through innovation and education.

OUR PRODUCTS

Fundamental (FunDo) Toothpaste is an educational healthcare toothpaste designed to clearly reveal areas that require brushing. By visualizing food residue and plaque left on the tooth surface after brushing, it helps both children and adults develop proper brushing habits and improve overall oral health. FunDo Toothpaste is trusted and used by more than 350 dental clinics, including leading institutions such as Seoul National University Hospital and Severance Hospital.

동영상 재생

WHY FUNDODENTAL TOOTHPASTE?


  1. Shows where brushing is needed Visually reveals missed areas, allowing users to check brushing effectiveness and build proper oral care habits through self-guided learning.

  2. Improves gum health Helps reduce plaque buildup, including bacteria that affect up to 50% of the gum area, supporting healthier gums.

  3. Contains ingredients for sensitivity relief Formulated with calcium phosphate to help alleviate tooth sensitivity.

  4. High-concentration fluoride for cavity prevention Contains 1,450 ppm fluoride, clinically effective for preventing tooth decay.

  5. Clinically proven and safety certified 100% patent-registered technology and certified by the Ministry of Food and Drug Safety. Approved for export and clinical use, based on stable, validated technology



A Simple Daily Habit That Truly Matters:


Check your brushing accuracy once daily, before bedtime 

Move beyond surface cleanliness to achieve real oral health 

Formulated with food-grade, water-soluble ingredients for safe and effortless use


OUR PARTNERS

Fundodental (FunDo) Toothpaste is a patented educational toothpaste designed to clearly reveal areas that require brushing. It is currently supplied to over 350 dental clinics and trusted by leading institutions, including Seoul National University Hospital and Severance Hospital.


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The FunDo Campaign

Fun because you can see it. Action because you can see it.
This vision lies at the heart of the FunDo Campaign—an interactive oral health initiative that helps children enjoy learning proper brushing habits and naturally turn awareness into action. Launched initially in select elementary schools, including Daehung Elementary School in Jeongeup, Jeollabuk-do, the campaign is expanding nationwide in collaboration with health teachers who play a key role in guiding children’s daily oral care education.

Campaign Partner · Daehung Elementary School, Jeongeup, Jeollabuk-do

Campaign Partner · Deokcheon Elementary School, Jeongeup, Jeollabuk-do

To support the development of proper brushing habits among children, FunDo donated Fundodental Toothpaste and conducted an oral health education program at Daehung Elementary School in Jeongeup. Under the guidance of the school health teacher, students were able to visually check plaque remaining after brushing, turning oral care into an engaging, hands-on learning experience. The session demonstrated how “visible brushing” can naturally lead to positive behavioral change.

To address overlooked areas of children’s oral health, FunDo partnered with the school health teacher at Deokcheon Elementary School to conduct a brushing education session. Fundodental Toothpaste was used as a visualization tool, helping students see their brushing results clearly. Through this experience, the program went beyond basic hygiene instruction, reinforcing why brushing matters and highlighting the role of educational toothpaste in preventive oral care.

Campaign Partner · Iri Seo Elementary School, Iksan, Jeollabuk-do

Campaign Partner · Seongdeok Girls’ Middle School, Seoul

FunDo donated 20 units of Fundodental Toothpaste to students at Iri Seo Elementary School and led a hands-on brushing experience during health education class.  Through direct participation, students naturally learned the importance of proper brushing and took their first step toward building healthy, sustainable oral care habits. 

Recognizing the increased hygiene awareness and sensitivity during adolescence, FunDo collaborated with the school health teacher at Seongdeok Girls’ Middle School to deliver oral care education tailored to teenage students. By allowing students to visually identify food residue and plaque after brushing, Fundodental Toothpaste helped them understand their individual oral care patterns and served as a practical tool for developing self-directed, healthy habits.

Campaign Partner · Junghwa Middle School, Seoul

Campaign Partner · Oryu Middle School, Seoul

At Junghwa Middle School, where visual learning plays a critical role in student development, a brushing education session using color-indicating toothpaste was conducted. FunDo positioned Fundodental not simply as a toothpaste, but as an educational healthcare solution that communicates the science behind brushing—resulting in high student engagement and positive learning outcomes.

To support students undergoing orthodontic treatment or those still developing stable brushing habits, FunDo implemented a visual-based brushing education program at Oryu Middle School. Students were able to clearly see areas they had missed while brushing, gaining meaningful insight into their own habits. This experience helped transform awareness into action, reinforcing proper brushing behavior through self-discovery.

FunDo co. 와  함께 하는 치아 건강의 
혁신 무브먼트, 지금 시작해보세요.

OUR NEws

Bringing You the Latest Highlights and Milestones from FunDo Co.

Fundo being Selected for KOTRA’s Export Readiness Support Program
Fundo Corporation has been officially selected for KOTRA’s Export Readiness Support Program, an initiative designed to help high-potential domestic companies expand into global markets. Through this selection, the company will receive structured support across key areas, including overseas regulatory and certification processes, the development of local partnerships, and the strategic expansion of global distribution channels. This milestone represents a significant step in Fundo Corporation’s international growth journey, laying the groundwork for market entry into Southeast Asia and Australia. By strengthening its global business infrastructure and export capabilities, Fundo Corporation is well positioned to accelerate its long-term global growth strategy.

2025.05.02

Fundo Corporation Earns Official Social Venture Certification 
Fundo Corporation has been officially certified as a Social Venture by the Ministry of SMEs and Startups and the Korea Technology Finance Corporation (KOTEC). The certification recognizes the company’s educational oral healthcare solutions that maximize brushing education outcomes while delivering both social impact and technological innovation. With this recognition, Fundo Corporation is now positioned to participate in government-backed programs, ESG initiatives, and global impact-driven campaigns, further accelerating its international expansion.

2025.04.17

FunDo Signs Official Distribution Agreement with Myungseong C&M
FunDo Co., Ltd. has signed an official B2B distribution agreement with Myungseong C&M, a leading dental product import and distribution company in Korea. Through this partnership, FunDo products are now supplied to over 2,000 dental clinics and orthodontic hospitals nationwide, including major institutions such as Seoul National University Hospital and Severance Hospital. This agreement significantly strengthens FunDo’s domestic distribution network and reinforces its position within Korea’s professional dental market.

2025.04.24


Join the Movement 
Transforming Oral Health — with FunDo Co.