Act as a senior product designer with 10+ years of experience in consumer electronics and dental hygiene products. Design a futuristic AI-powered toothbrush that analyzes brushing techniques in real-time. The toothbrush should feature [sleek, ergonomic design] with [embedded pressure sensors] and [AI-driven feedback via a companion app]. Highlight key elements like [real-time brushing score], [personalized coaching tips], and [gum health monitoring]. Use a [minimalist color palette] with [LED indicators] for brushing zones. The product should appeal to [health-conscious adults] and integrate seamlessly with [smart home ecosystems]. Ensure the design is [waterproof] and [sustainable], using [recyclable materials]. Render the toothbrush in a [high-tech bathroom setting] with the app interface visible on a [smartphone or mirror display].