This study was designed to find out the stain removal efficacy and also, to find out the operators and patients opinion when use or receive treatment with both air polishing powders.
Using air polishing with sodium bicarbonate powders with grain size 65 µm provides efficacy in the removal of dental stains but it can cause gingival trauma if used towards the gingiva. Since having big size particles is uncomfortable, the current recommendation according to literature is to use a smaller grain size (40 µm) that results in more patient comfort. However, the efficacy of small grain size on stain removal has not been studied adequately. This study aimed to compare the stain removal efficacy between sodium bicarbonate powders with grain size 65 µm and 40 µm and also to evaluate patient's acceptance after treatment and operator's opinion after using both air polishing powders.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
35
sodium bicarbonate powders with grain size 65 µm
sodium bicarbonate powders with grain size 40 µm
Kanyawat Rattanasuwan
Bangkok, Thailand
The time required for complete removal of extrinsic stains
Comparison of the time required for the complete removal of extrinsic stains by sodium bicarbonate powders with a grain size of 65 µm and 40 µm
Time frame: 2 hr
Patient acceptance
The answers from the questionnaires about the clinical impressions of patients after treatment with sodium bicarbonate powders with a grain size of 65 µm and 40 µm
Time frame: 2 hr
Operator opinion
The answers from the questionnaires about the operators' opinions after using of sodium bicarbonate powders with a grain size of 65 µm and 40 µm
Time frame: 2 hr
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