Which of the following necessitate precautions when mechanized instrumentation is used?
A) Unshielded pacemakers,demineralized tooth surfaces,and children
B) Tobacco stain,orthodontic cement,and pericoronitis
C) Necrotizing periodontal diseases,communicable diseases,and immunosuppression
D) Periodontal debridement,dysphagia,and intrinsic tooth stain
Correct Answer:
Verified
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Q21: A combination of manual and mechanized instrumentation
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Q25: Hand-activated and mechanized instrumentation are equally effective
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