__________ bleaching is placed in the crown opening of the tooth ...

[lindiwe]

__________ bleaching is placed in the crown opening of the tooth of a nonvital tooth.
 a. Power
  b. Gel
  c. Assisted
  d. All of the above

Question 2

Bleaching materials that require the use of bleaching heat and/or light sources are used for approximately ____ minutes.
 a. 10
  b. 4
  c. 30
  d. 6

[juiceman1987]

Answer to Question 1

b
RATIONALE: Gel bleaching is placed in the crown opening of the tooth of a nonvital tooth.

Answer to Question 2

c
RATIONALE: Bleaching materials that require the use of bleaching heat and/or light sources are used for approximately 30 minutes.

[lindiwe]

TYSM

[Kedrick2014]

Thanks for the timely response, appreciate it