bearing maintenancescanner accuracy errorsintraoral scanner accuracy driftdental imaging half white issuescanner software maintenanceartifact corner fixX-ray sensor maintenancedental sensor calibrationlens scratchingscale preventionIvoclar P510 RepairDEXIS Intraoral Scanner Repairmaintenance optimizationapex locator power/connection repairDentsply Sirona Primescan Laser
