On an electronically powered instrumetn tip, which of the surfaces is recommended for adaptation to the tooth surface with all sonic, piezoelectric, and magnetoscrictive ultraonsic instruments? 

On a powered instrument tip, which of the surfaces produced the greatest amount of energy? 

How should the nozzle tip of an air-polishing device be positioned for occlusal surfaces?

The active tipe of a magnetostrictive instrumetn tip vibrates in a(an) ______________pattern. 

Medical histories should be updated: 

Slim-diameter powered instruments are more effective in treating Class II and III furcations when used by experienced clinicians.  Hand instruments have been shown to be more effective in deplacing root surfaces. 

Proper angulation of the supragingival handpiece for anterior teeth is 

When adapted appropriately, thin ultrasonic tips provide excellent opportunities for access to root concavities and furcations areas.  The fluid lavage produced by ultrasonic instruments will disrupt unattached subgingival bacterial biofilm from the sulcus of pocket space. 

Lydia dos not lubricate her sharpening stone.  What is the major problem with not lubricating a sharpening stone?

From what surfaces can you access the furcations on maxillary molars?