div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page1jpg target=_blank img data-url=and-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=1 data-page=1 class=ts-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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails1jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page2jpg target=_blank img data-url=and-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=2 data-page=2 class=ts-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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails2jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page3jpg target=_blank img data-url=and-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: · 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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails3jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page4jpg target=_blank img data-url=and-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: · 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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails4jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page5jpg target=_blank img data-url=and-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: · 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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails5jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page6jpg target=_blank img data-url=and-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: · 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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails6jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imagea href=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5page7jpg target=_blank img data-url=and-negatively-charged-hydroxide-ions-hydroxyapatite-is-also-present-in-the-humanhtmlpage=7 data-page=7 class=ts-thumb lazyload alt=Page 7: · 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:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader043vdocumentsusreader043viewer20220307195b03fe687f8b9a2e228d2c4dhtml5thumbnails7jpg width=140 height=200 adivdiv