To evaluate the effect of prophylaxis pastes with and without desensitizing agents prior to in-office bleaching on color change and tooth sensitivity.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
38
Prophylaxis paste will be applied to all tooth surfaces using a prophy cup attached to a low-speed contra-angle handpiece. The paste will remain on the teeth for the duration specified in the manufacturer's instructions for use before being rinsed away.
Color change
Tooth color will be measured using the VITA Easyshade V spectrophotometer. Color measurements will be recorded in the CIE L\*, a\*, and b\* color space, and the color difference will be calculated using the CIEDE2000 color-difference formula (ΔE00).
Time frame: Baseline, Immediate after bleaching
Tooth sensitivity
Pain intensity will be assessed using a 10-cm Visual Analog Scale (VAS), ranging from 0 (no pain) to 10 (worst pain imaginable). Patients will be asked to place a mark on the 10-cm VAS corresponding to the intensity of their pain.
Time frame: Baseline, Immediate after bleaching
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