milling bur issueDEXIS intraoral error checksfull-arch scan accuracytank protectiondigital shade workflowHamamatsu C7943ultrasonic troubleshootingX-ray sensor USB issuesSilamat S5 power issuesCNC margin qualitysoftware virtualizationcalibrate Gendex intraoral sensorworkflow optimizationradiographic noisepatient record safety
