When selecting a dental sensor, the primary choice is between CMOS (Complementary Metal-Oxide-Semiconductor) and CCD (Charge-Coupled Device) technologies. CMOS sensors are currently the industry standard due to their lower power consumption, faster image processing, and higher integration capabilities, which often result in a more durable and thinner sensor head. You should prioritize sensors with a theoretical resolution of at least 20-25 lp/mm to ensure high-definition diagnostic images for endodontics and restorative dentistry.