Phân tích tư tưởng của nhân dân qua đoạn thơ: Những người vợ nhớ chồng… Những cuộc đời đã hóa sông núi ta trong Đất nước của Nguyễn Khoa Điềm
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The objective was to compare the colour improvement of white spot lesion and the colour stability of treated enamel to after discolouration in vitro. Method: Artificial WSLs (2*2 mm) were created on the outer surface of 60 permanent premolars and randomly allocated to 4 groups. Specimens were treated with infiltration (RI), CPP-ACP (CPP), and micro-abrasion (MA) or remained untreated (UT).
Nội dung trích xuất từ tài liệu:
Comparison of colour improvement and stability of white spot lesions following infiltration, micro-abrasion, or CPP-ACP treatments in vitro
