man, mirror or brushing teeth with toothbrush for dental care, morning routine or oral hygiene at home. male person, reflection or bamboo stick for mouth, fresh breath or personal health and wellness - 氟 個照片及圖片檔牙齒, 成年人
Miami-Dade Mayor Daniella Levine Cava listens as Dr. Beatriz Terry, Diplomate, American Board of Periodontology and Dental Implant Surgery, speaks...Bestpix
Commissioner Roberto Gonzalez speaks to the press about the legislation he sponsored to remove the fluoride from the public drinking water, which has...
young black man with tooth sensitivity suffering from toothache after biting ice cream on couch at home. - 氟 個照片及圖片檔
Photograph of Fluorite , the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit,...
Photograph of Fluorite , the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit,...
Allen Roseberry, a water utility foreman for the City of Healdsburg near the tank that contains the fluoride, that is added to the drinking water at...
Henri MOISSAN French chemist, working on Fluorine in his laboratory at l'Ecole de pharmacie, Paris. He isolated Fluorine in 1883. Later in his career...1900-1909
COuples relaxing on benches next to 'Stare Lazienki' sanatorium in the central area of Iwonicz-Zdroj. In the era of coronavirus, many health resorts...波蘭
Fricktal; Protest against damages by fluorine; 1958 Fricktal; Protest against damages by fluorine; 1958
Moissan', circa 1893. Portrait of Ferdinand Moissan , French chemist who won the 1906 Nobel Prize in Chemistry for his work in isolating fluorine...
Brush In -- Soldiers under Dental supervision cleaned their teeth with a new concentrated Fluoride tooth - cleaning paste at North Head School of...
Shire gangers, Harold Hocking and Robert Manca remove a dead "scrubber" room from the town dam .***** not artificially poisoned, it is just naturally...
Formal headshot/portrait photograph of Dr Frederick S McKay, the Colorado dentist who discovered the connection between fluoride and tooth decay...
Formal headshot photograph of Dr Frederick S. McKay, the Colorado dentist who discovered the connection between fluoride and tooth decay, which lead...
Formal portrait of H.Trendley Dean, DDS wearing a uniform, the first dentist to study and publish the benefits of fluoride in preventing tooth decay...
Formal portrait of H Trendley Dean, DDS in uniform, the first dentist who studied and published the benefits of fluoride in tooth decay prevention,...
Two models showing the molecular structure of the basic unit of a synthetic rubber containing fluorine and silicon . Germany produced the first...
Reproduction of the electrolysis cell with which the chemist Henri Moissan first isolated the element fluorine in 1886. It is shown together with...
Formal headshot photograph of Dr Frederick S McKay, the dentist who discovered the connection between fluoride and tooth decay which lead to modern...
