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. 2022 Sep 16;101(37):e30601. doi: 10.1097/MD.0000000000030601

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Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 6. — Laser analysis on surface profile of the exposed and non-exposed area. (A) Methylene blue was used to stain the exposed suture (arrows) and then the suture was severed according to staining; (B) statistically there is significant difference between the length of the exposed sutyre and the total; (C–E) according to surface morphology analysis by laser microscope, normal sutures, as blank control, represent smooth surface and shows significantly low V_mp variation; there suggested no significant difference in surface roughness between hidden suture and blank control; exposed sutures showed irregularity and notable variation in surface morphology with substantial pore structures, and its V_mp suggested statistic difference compared with blank control (P < .05). PAOO = periodontally accelerated osteogenic orthodontics, SSS = subgingival sing suture. ** Significant difference, P < .05.