caries detectionKerr apex locator longevityprevent repeat failures Planmecastripped cable from hubtestocclusal sensorsDEXIS sensor durabilityHu-Friedy Scaler Repairadhesive fixturingPC connectivity fix.tube lifespan managementOwandy repairStraumann Intraoral Scanner Repairscanner connection issueselectric vs air-driven handpieces
