Last updated: October 16, 2026. Independent reference. Preventio Hub has not bench-tested this unit.
Summary
The GBT Machine (EMS code FT-300A) is EMS's current combined tabletop unit for its Guided Biofilm Therapy (GBT) protocol. FDA lists it as "GBT Machine Airflow Prophylaxis Master" (510(k) K253254, decision date January 28, 2026), and EMS presents it as the successor to the AIRFLOW Prophylaxis Master. It combines an AIRFLOW MAX handpiece for supragingival air polishing, a PERIOFLOW MAX handpiece for subgingival work and a PIEZON piezoelectric scaler (NO PAIN MAX).
Who it may suit
- Practices that run, or plan to run, EMS's GBT protocol.
- Clinics that want one console for scaling, supragingival and subgingival air polishing, with a single water bottle feeding both the AIRFLOW and PIEZON functions (EMS U.S. page).
- Buyers who prefer EMS's new unit to the AIRFLOW Prophylaxis Master it succeeds.
It may be less suited to practices that want to source powders from several suppliers (EMS builds the protocol around its own powders) or that only need supragingival polishing (a coupling-mounted handpiece costs less; see handpiece vs combined unit).
What EMS says it does (EMS U.S. page)
- AIRFLOW MAX: guided laminar airflow technology that channels water and AIRFLOW PLUS powder in straight paths for visibility and aerosol control (EMS claim).
- PERIOFLOW MAX: for minimally invasive treatment of periodontal pockets, implant surfaces and interdental spaces.
- PIEZON NO PAIN Max: the piezo handpiece automatically adjusts power during treatment.
- Other features: single water bottle for AIRFLOW and PIEZON; wireless stainless-steel pedal with boost mode and 360° power activation; smart Night cleaning (EMS: 3 times faster, up to 20% energy savings); a GBT Machine station for moving the device between rooms; tempered glass and aluminum case; MYGBT Insights dashboard in the MYEMS account (treatment data, powder consumption, maintenance updates).
Regulatory records (checked October 16, 2026)
| Record | Details |
|---|---|
| FDA 510(k) | K253254, "GBT Machine Airflow Prophylaxis Master", E.M.S. Electro Medical Systems S.A., decision date 2026-01-28, substantially equivalent, product code ELC (21 CFR 872.4850), class II. Predicate: AIRFLOW Prophylaxis Master K190124. |
| FDA summary | Describes a modified version of K190124; ultrasonic scaling in the 24-32 kHz range with piezoelectric vibration; compatible with EMS scaling instruments cleared under K190124 and with AIR-FLOW CLASSIC, AIR-FLOW PERIO (K190124) and AIR-FLOW PLUS (K171189) powders; includes a wireless Bluetooth foot pedal. |
| Indications (FDA summary) | Scaling (supra- and subgingival calculus and stain removal, pocket lavage, scaling and root planing); air polishing (plaque, soft deposits and surface stains); listed cleaning procedures (sealant prep, bonding prep, orthodontic patients, implant fixtures before loading, stain removal for shade determination, before fluoride or whitening); use in patients with periodontal disease, and non-surgical removal of subgingival plaque in pockets up to 5 mm after initial periodontal treatment. |
| Health Canada | Licence 114177, "GBT MACHINE AIRFLOW PROPHYLAXIS MASTER", class II, first licensed 2025-10-21, issued (MDALL). |
A 510(k) is a finding of substantial equivalence, not an FDA approval. Ask the supplier to confirm the clearance and licence cover the exact kit you are buying.
Specifications
| Item | Value | Source |
|---|---|---|
| Model / code | GBT Machine, FT-300A | EMS U.S. page |
| Handpieces | AIRFLOW MAX, PERIOFLOW MAX, PIEZON (LED) with PS instruments | EMS U.S. page |
| Scaler | Piezoelectric, 24-32 kHz | FDA summary K253254 |
| Water supply | One water bottle feeds AIRFLOW and PIEZON | EMS U.S. page |
| Foot control | Wireless, stainless steel, boost mode, 360° activation; 2 × AA lithium batteries listed in the kit | EMS U.S. page |
| Powder chambers | CLASSIC and PLUS | EMS U.S. page |
| Power, dimensions, weight, water and air pressures | Not published on the EMS U.S. page. The AIRFLOW Prophylaxis Master it succeeds is 100-240 V, 245 × 260 × 290 mm, up to 5 kg, water 2-5 bar and air 4.5-7 bar; do not assume the same for the GBT Machine. Confirm with supplier. | - |
| Warranty and service life | Not found. Confirm with supplier. | - |
| Price | Price on request | - |
What is included (EMS U.S. page)
FT-300A GBT Machine; AIRFLOW CLASSIC and AIRFLOW PLUS powders; PIEZON handpiece LED and PS instruments (x3) plus PI starter kit; AIRFLOW MAX and PERIOFLOW handpiece sets with cords; GBT training tool kit; quick guide; water bottle; wireless pedal with 2 AA lithium batteries; water and air hoses; powder chambers CLASSIC and PLUS; CLIP+CLEAN; maintenance kit; cleaner bottle; reprocessing posters; power cord (plug type depends on country). Night Cleaner and Biofilm Discloser items are listed "if available in your country". Confirm the exact package and North American plug with the supplier.
Powders
FDA's summary lists AIR-FLOW CLASSIC (sodium bicarbonate), PERIO (glycine) and PLUS (erythritol, K171189, class I, cetyl pyridinium chloride preservative). EMS's U.S. kit includes CLASSIC and PLUS. Ask the supplier whether using other powders affects the warranty.
Comparison with two alternatives
| EMS GBT Machine | EMS AIRFLOW Prophylaxis Master | Mectron Combi Touch | |
|---|---|---|---|
| Status | Current EMS unit | Succeeded by the GBT Machine (per EMS) | Current Mectron unit |
| FDA | K253254 (2026) | K190124 (2019) | K231391 (2023) |
| Health Canada | 114177 | 102646 | 98936 |
| Scaling | PIEZON NO PAIN Max, 24-32 kHz | PIEZON, 24-32 kHz, up to 8 W | Piezo 24-36 kHz auto-scan |
| Size / weight | Confirm with supplier | 245 × 260 × 290 mm, up to 5 kg | 410 × 260 × 145 mm, 4.8 kg |
| Price | Price on request | Price on request | Price on request |
FAQ
Is the GBT Machine the same as the AIRFLOW Prophylaxis Master?
No. It is a modified version: FDA cleared it as a separate 510(k) (K253254) using the Prophylaxis Master as predicate. EMS presents it as the successor.
Is it cleared in the U.S. and licensed in Canada?
FDA 510(k) K253254 and Health Canada licence 114177 (class II) are on record.
What does it cost?
Price on request.
Confirm with the supplier
Power, dimensions, weight, water and air pressure (FT-300A IFU); warranty and service terms in your state or province; North American kit and power cord; powder warranty terms.
Related pages
- EMS AIRFLOW Prophylaxis Master: device sheet (the model the GBT Machine succeeds)
- EMS AIRFLOW Prophylaxis Master: our editorial review
- Air polisher handpiece vs combined unit
- Combined tabletop systems compared
Sources (checked October 16, 2026)
- EMS U.S. GBT Machine: www.ems-dental.com/en-us/products/gbt-machine
- FDA 510(k) K253254 and summary: www.accessdata.fda.gov/cdrh_docs/pdf25/K253254.pdf ; openFDA api.fda.gov/device/510k.json?search=k_number:K253254
- FDA 510(k) K190124: www.accessdata.fda.gov/cdrh_docs/pdf19/K190124.pdf ; K171189: www.accessdata.fda.gov/cdrh_docs/pdf17/K171189.pdf
- Health Canada MDALL licence 114177: health-products.canada.ca/api/medical-devices/licence/?lang=en&type=json (filter original_licence_no)
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