handpiece lubrication serviceartifact root causeintraoral ergonomicsPSP system troubleshootingsensor replacementsevere internal damageMidmark Dental X-ray Sensor RepairW&H cartridge repairworkflow monitoring CAD CAMconnectivity failure troubleshootingtroubleshoot Vatech intraoral X-raychairside CAD/CAM tool pathvisible laser calibrationclinical workflow efficiencyvatech connection failure
