An In Vitro Evaluation of the Effects of Air-Polishing Powders on Sound and Demineralised Enamel

Article Article scientifique Article An In Vitro Evaluation of the Effects of Air-Polishing Powders on Sound and Demineralised Enamel eng 2023-07-04 2023-07-04 author Guma Elton 0009-0002-3941-7869 Division of Orthodontics, University Clinics of Dental Medicine, University of Geneva, 1205 Geneva, Switzerland. 911235 author Kiliaridis Stavros Division of Orthodontics, University Clinics of Dental Medicine, University of Geneva, 1205 Geneva, Switzerland.,Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3012 Bern, Switzerland. 130544 Décanat et administration de la faculté de médecine (ADMED) author Scherrer Susanne Division of Fixed Prosthetics and Biomaterials, University Clinics of Dental Medicine, University of Geneva, 1205 Geneva, Switzerland. 22647 CUMD - Division de prothèse fixe et biomatériaux - communs (DPFB) author Antonarakis Gregory 0000-0001-6741-6922 Division of Orthodontics, University Clinics of Dental Medicine, University of Geneva, 1205 Geneva, Switzerland. 133276 CUMD - Division d'orthodontie - communs (DORT) 4811 10.3390/ma16134811 37445125 1996-1944 PMC10343198 https://www.mdpi.com/1996-1944/16/13/4811 Aim: To evaluate the effects of two air-polishing powders, during orthodontic treatment, on the surface roughness of sound and demineralised enamel. Materials and methods: Forty-two caries-free human molars were collected, and the enamel surfaces were flattened and polished. Teeth were assigned to two groups (n = 21 each), a sound- and a demineralised-enamel group (subjected to pH-cycling over 2 weeks to create artificially induced white spot-like lesions). Within each group, teeth were further assigned to three groups (n = 7 each), air polished with either sodium bicarbonate, erythritol, or a negative control (water). Each sample was treated for 5 and 150 s. The average surface roughness (Ra) for each sample was measured using white-light-sensor profilometry. Results: On sound enamel, the Ra was roughly 0.17 ± 0.07 μm. After 150 s of air polishing, the Ra increased with erythritol (by 0.28 μm), and even more so with bicarbonate treatment (by 0.68 μm) (p < 0.01). On demineralised enamel, the Ra was roughly 0.79 ± 0.56 μm. The Ra increased after 5 s of air-polishing treatment similarly with erythritol and bicarbonate powders (by 1.03 μm and 1.04 μm, respectively) (p = 0.025), and even more after 150 s (by 2.48 μm and 2.49 μm, respectively) (p < 0.001). Conclusions: On white spot lesions, one should be aware that enamel surface roughness will increase with both erythritol and bicarbonate air-polishing powders, especially with longer exposure times. Air polishing Bicarbonate Demineralised enamel Enamel Erythritol Orthodontics Surface roughness White spot lesions Dewey 617.6 210 Division de prothèse fixe et biomatériaux 24Q2 209 Division d'orthodontie 24Q1 false 239 Groupe Susanne Scherrer : Unité des biomatériaux 315 188 Groupe Kiliaridis Stavros (médecine dentaire) 239 1448 Orthodontie 1065 Materials 16 13 b79d5857-0ac6-43d5-9c33-37ccfc288fa1 Article (Published version) Public Article-scientifique-from-unpaywall.pdf 3983902 application/pdf CC BY-4.0 2077ef606069094a3a3a7f9e0794949f9d99d3e59a44eb0f5560d5afefdd8026 openAccess Faculté de médecine / Section de médecine dentaire / Département de réhabilitation oro-faciale / Division de prothèse fixe et biomatériaux Faculté de médecine / Section de médecine dentaire / Département de réhabilitation oro-faciale / Division d'orthodontie

Title	Published in	Access level	OA Policy	Year	Views	Downloads

An In Vitro Evaluation of the Effects of Air-Polishing Powders on Sound and Demineralised Enamel	Materials			2023	103	65

Archive ouverte UNIGE

Guma, Elton