How is a custom sports mouth guard made?

The process begins at the dental practice. The referring dentist takes a full-arch impression, or increasingly sends an intraoral scan file directly to the lab. A digital scan eliminates distortion from traditional PVS or alginate impressions and lets the lab begin CAD modeling the same day the file arrives. For general dentists running a sports guard as an adjunct service, that scan-to-ship turnaround is the difference between a profitable single-appointment workflow and a second patient visit.

At the lab, the technician adapts the thermoplastic sheet to the poured or digitally rendered model using either vacuum pressure or a pressure-lamination unit. Pressure lamination produces a denser material cross-section and more uniform thickness, which translates to better energy absorption on impact. Material color, laminate thickness, and any dual-laminate construction (soft inner layer, hard outer shell) are specified by the prescribing dentist based on the patient's sport, age, and occlusal anatomy.

Fit verification matters here. A custom guard fabricated on an accurate model seats without rocking and stays in place without biting pressure, so the athlete can breathe and communicate normally. The Academy for Sports Dentistry recommends custom-fabricated guards over boil-and-bite options precisely because the model-accurate fit reduces soft-tissue and dental injury risk significantly compared to over-the-counter alternatives.