div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader043fdocumentsnetreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page1jpg target=_blank img data-url=documentand-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · molecules and negatively charged hydroxide ions Hydroxyapatite is also present in the human saliva — but broken that get on the teeth with the toothpaste loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsnetreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader043fdocumentsnetreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page2jpg target=_blank img data-url=documentand-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · molecules and negatively charged hydroxide ions Hydroxyapatite is also present in the human saliva — but broken that get on the teeth with the toothpaste loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader043fdocumentsnetreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader043fdocumentsnetreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page3jpg target=_blank img data-url=documentand-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · molecules and negatively charged hydroxide ions...