DentaNote turns dental visit audio into structured clinical notes entirely on a local machine

The author built DentaNote, a tool that converts dictated dental visit audio into a structured clinical note without sending any data off the device. The pipeline combines local Whisper transcription with Gemma running through Ollama, followed by schema validation and a deterministic template for rendering. In the author's test, a 30-second clip produced a complete note in 11.2 seconds, and the author estimates it saves roughly nine minutes per appointment compared with typing notes manually. Benchmarks on 12 synthetic cases compared two Gemma models, with gemma4:e4b outperforming gemma3:4b on precision, recall, and hallucination rate. The design flags ambiguous items for clinician review and is presented as a way to meet Brazil's LGPD data protection requirements through architecture rather than policy.