Analysing the effect of sodium bicarbonate and glycine air polishing on tooth surfaces with two different imaging methods.

The article focuses on comparing imaging methods used to study cannabis glandular trichomes and the effects of air polishing on tooth surfaces. It highlights that chemical fixation in transmission electron microscopy (TEM) introduces intracellular artifacts affecting the interpretation of lipid metabolite trafficking in cannabis trichomes, whereas ultrarapid cryofixation preserves cellular ultrastructure more naturally but with less detail on extracellular polysaccharides. Additionally, the study compares sodium bicarbonate and glycine air polishing powders on tooth surfaces using micro-computed tomography (micro-CT) and computer-aided design/computer-aided manufacturing (CAD/CAM) imaging, finding that glycine is less abrasive than sodium bicarbonate and that micro-CT provides more accurate defect volume measurements than CAD/CAM.