chairside CAD diagnosticsscan driftBelmont no triggernot detected troubleshootingdental handpiece repair British Columbiahandpiece repair complexityDental Lab Equipment FixHygiene Protection Sleeve Replacementairflow obstructionSchick 33 image failure fixcamera handlingdental sensor intermittentNewTom X-ray preventative maintenancedental X-ray cable fatiguesensor white exposure failure
