Which of the following are disadvantages of mechanized instrumentation when compared with hand-activated instrumentation?

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Because of aerosol production and mechanized tip action, there are potentially more precautions and contraindications than with hand-activated instrumentation. Also, temporary hearing shifts have been documented; however, more research is needed. Increased efficiency, no need to sharpen, and reduced lateral pressure are all advantages of mechanized instrumentation. Less tissue distention, lavage, and acoustic microstreaming occur with mechanized instrumentation and not with hand-activated instrumentation. These are also all advantages and not disadvantages of using mechanized instrumentation. The water flow, however, can limit visibility when compared with hand-activated instrumentation. Increased efficiency is not a disadvantage to the client or dental hygienist. Efficacy is reported to be equivalent as measured by the long-term response of healing parameters. A blended approach, however, is probably best for thorough debridement. Time involved given equal intraoral conditions would seem to be less with the mechanized instruments. Cost is not a factor for the client; however, a cost advantage in relation to less wear on curets in the clinical environment might be noticed.

Which of the Following Are Disadvantages of Mechanized Instrumentation When