a.5days
b.8days
c.10days
d.15days
Ans-5 days
240.Ruddles'solution contains
a.5%NaOCl&H2o2
b.5%NaOCl,Ca(oH)2& 17%EDTA
c.5%NaOCl,Hypaque& 17%EDTA
d.17%EDTA,Urea peroxide&Propylene glycol
Ans-c.5%NaOCl,Hypaque& 17%EDTA
b.5%NaOCl,Ca(oH)2& 17%EDTA
c.5%NaOCl,Hypaque& 17%EDTA
d.17%EDTA,Urea peroxide&Propylene glycol
Ans-c.5%NaOCl,Hypaque& 17%EDTA
239.All are true for home bleaching,except
a.Uses 15%carbamide peroxide
b.In addition to bleaching agent carbapol is used
c.Vacuum from vinyl trays are used
d.Both arches bleached simultaneously
Ans-d.Both arches bleached simultaneously
Explanation-sturdvent 4th ed pg 610-612
It is recommended that only one arch be bleached at a time, beginning with maxillary arch.bleaching the maxillary arch first allows theuntreated mandibular arch to serve as a comparison.
b.In addition to bleaching agent carbapol is used
c.Vacuum from vinyl trays are used
d.Both arches bleached simultaneously
Ans-d.Both arches bleached simultaneously
Explanation-sturdvent 4th ed pg 610-612
It is recommended that only one arch be bleached at a time, beginning with maxillary arch.bleaching the maxillary arch first allows theuntreated mandibular arch to serve as a comparison.
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