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dental plaque and microscopy
76384 | 06:13 | 2021-02-17

microscopic analysis of oral bacteria
8994 | 00:24 | 2022-02-17

heres what happens if you stopped brushing your teeth
5022373 | 03:09 | 2019-02-17

bacteria of dental plaque under the microscope
48002 | 02:28 | 2019-02-17

tooth decay a little peek at the bacteria causing caries under the microscope 4k
11803 | 02:32 | 2022-02-17

how to brush your teeth fight tooth decay
40193638 | 01:30 | 2014-02-17

dental health psa short
639219 | 00:30 | 2012-02-17

nidcr what lives inside your mouth
102607 | 01:35 | 2014-02-17