ToothSOS: Save a Knocked‑Out Tooth | 医療法人社団EPSDC

Tooth avulsion help App

Don’t Give Up If a Tooth Is Knocked Out — Protect Tomorrow’s Smile with the 20‑Minute Emergency App “ToothSOS”

Experience
I am Hiroshi Miyashita, Director of Tokyo International Dental Roppongi, a specialist in periodontics and endodontics. Over many years I have managed traumatic dental injuries from immediate first aid through long‑term follow‑up. Repeatedly in clinical practice I have seen that correct actions taken immediately after injury dramatically affect tooth survival. I have verified the practical usefulness of ToothSOS in clinical situations and used it to help save patients’ teeth.

Expertise

I have extensive knowledge of traumatic dental injury (TDI) pathophysiology and treatment strategies, including replantation, storage media, pulp preservation, splinting methods, and long‑term monitoring.
I routinely apply IADT (International Association of Dental Traumatology) and ASD guidelines in practice, emphasizing coordination between initial first aid and specialist care.

Authority

Our clinic incorporates guideline‑based standard treatments for traumatic injuries and has established in‑house protocols for TDI cases.
Based on collaborations with schools and sports organizations, I advocate combining emergency manuals with digital tools for effective on‑site response.

Trustworthiness

We provide patients and caregivers with practical, step‑by‑step instructions (how to hold the tooth, gentle rinsing, choice of storage medium, and replantation decisions) and obtain informed consent before treatment. Case images and reports are shared only with consent.

Main Text — Five Key Facts from ToothSOS and Clinical Implications

The first 20 minutes matter: immediate action changes prognosis
Replantation success for avulsed (completely displaced) teeth is highly time‑dependent. It is crucial to act as quickly as possible—ideally within 20 minutes—by keeping the tooth moist, replanting if feasible (or placing it in an appropriate storage medium), and seeking dental care promptly. ToothSOS raises awareness of this “golden time” and guides immediate steps.
Never replant primary (baby) teeth: good intentions can cause harm
Replanting a primary tooth risks damaging the developing permanent tooth germ beneath it. IADT and ToothSOS explicitly warn against replantation of primary teeth. Traumatic injuries in young children require careful specialist observation and documentation.
Do not touch or scrub the root: protect the periodontal ligament
Handle an avulsed tooth by the crown only to avoid damaging the periodontal ligament (PDL) on the root surface. If soiled, rinse gently with running water; do not scrub, wipe, or allow it to dry. ToothSOS provides diagrams showing the correct way to hold and rinse the tooth to preserve PDL viability.
Dual‑layer design links lay rescuers and clinicians effectively
ToothSOS provides both a simple first‑aid interface for the public and access to detailed guidelines for dental professionals. This design helps ensure that appropriate lay rescuer actions are taken on site and that care transitions smoothly to evidence‑based specialist treatment, improving overall survival rates.
Visual triage reduces hesitation: “What does the injury look like?” feature
In emergencies, users can select the image that best matches the injury—knocked out, moved, pushed in, loosened, or broken—and receive tailored instructions. This visual UI minimizes misjudgment during panic and speeds correct response. Clinically, it also helps verify whether actions taken before arrival were appropriate.

Practical clinical advice (actions to take on scene)

If a permanent tooth is avulsed: hold by the crown, rinse briefly under running water, place in milk or a tooth‑preservation solution (or replant immediately if possible), and seek dental care immediately.
If a primary tooth is avulsed: do not replant—visit a dentist for assessment of potential effects on the permanent successor.
Do not delay due to bleeding or pain—early intervention is key.

Conclusion — Preparedness saves teeth
ToothSOS is more than an app: it is a digital lifesaver that connects knowledge with action. Introducing it to sports venues, schools, and homes—and ensuring stakeholders understand the 20‑minute rule and correct replantation steps—offers the best chance of preserving a loved one’s tooth. If an injury occurs, remain calm, follow the app’s instructions, and contact our clinic promptly.

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Tokyo International Dental Clinic Roppongi

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