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Korean J Orthod
Published online February 2, 2021
Copyright © The Korean Association of Orthodontists.
Seok-gon Kim, DDS1), Yoon-Ah Kook, DDS, PhD2) Hee Jin Lim, DDS3), Patrick Park, BA4), Won Lee, DDS, PhD5), Jae Hyun Park, DMD, MSD, MS, PhD6), Mohamed Bayome, BDS, MMS, PhD7), Yoonji Kim, DDS, PhD8)
1) Graduate student, Department of Orthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea.
2) Professor, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
3) Resident, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
4) Pre-dental Student, Santa Monica College, University of Washington, Sociology Major, Class of 2019
5) Professor, Oral and Maxillofacial Surgery, Department of Dentistry, Uijeongbu St. Mary's Hospital, Catholic University of Korea.
6) Professor and Chair, Postgraduate Orthodontic Program, Arizona School of Dentistry & Oral Health, A.T. Still University, Mesa, AZ, International Scholar, Graduate School of Dentistry, Kyung Hee University, Seoul, Korea.
7) Assistant Professor, Department of Preventive Dental Sciences, College of Dentistry, King Faisal University, Al-Ahsa, Kingdom of Saudi Arabia..
8) Associate Professor, Department of Orthodontics, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Correspondence to:Yoon-Ah Kook
Department of Orthodontics, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-Gu, Seoul, 06591, Korea.
Tel: +82 2 2258 1776, Fax: +82 2 537 2374
E-mail: kook2002@catholic.ac.kr
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Objective: The aims of this study were to compare the amount of tooth movement after multiple-horizontal and single-vertical microosteoperforation (MOP), and to evaluate the histological changes after orthodontic force application in rabbits.
Materials and Methods: Mandibles of 24 white rabbits have received two experimental interventions: a multiple-horizontal (MH) and a single-vertical (SV) MOP. Defect volume of MOP between two groups was controlled similarly. A hundred cN force was applied via coil spring between the incisor teeth to the first premolars. The amount of tooth movement was measured. Differences in amount of tooth movement and bone variables according to the three time points and the two groups were evaluated using repeated measures ANOVA.
Results: The first premolar showed 1.47 mm of mesial movement in the MH group and 1.84 mm in the SV group, which showed significant difference at week 3 (P < 0.05). There was no significant difference in bone volume and bone fraction between the groups. TRAP-positive cell count was significantly greater at week 3 in both the SV and MH groups compared to week 1.
Conclusions: The amount of tooth movement showed significant difference between the 1st and 3rd weeks for the SV and MH MOP groups, but not between the two groups. Therefore, SV MOP could be considered an effective tool for enhancing tooth movement, especially for molar distalization, uprighting, and protraction to an edentulous area.
Keywords: Corticotomy, Tooth movement, Bone biology
Korean J Orthod
Published online February 2, 2021
Copyright © The Korean Association of Orthodontists.
Seok-gon Kim, DDS1), Yoon-Ah Kook, DDS, PhD2) Hee Jin Lim, DDS3), Patrick Park, BA4), Won Lee, DDS, PhD5), Jae Hyun Park, DMD, MSD, MS, PhD6), Mohamed Bayome, BDS, MMS, PhD7), Yoonji Kim, DDS, PhD8)
1) Graduate student, Department of Orthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea.
2) Professor, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
3) Resident, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
4) Pre-dental Student, Santa Monica College, University of Washington, Sociology Major, Class of 2019
5) Professor, Oral and Maxillofacial Surgery, Department of Dentistry, Uijeongbu St. Mary's Hospital, Catholic University of Korea.
6) Professor and Chair, Postgraduate Orthodontic Program, Arizona School of Dentistry & Oral Health, A.T. Still University, Mesa, AZ, International Scholar, Graduate School of Dentistry, Kyung Hee University, Seoul, Korea.
7) Assistant Professor, Department of Preventive Dental Sciences, College of Dentistry, King Faisal University, Al-Ahsa, Kingdom of Saudi Arabia..
8) Associate Professor, Department of Orthodontics, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Correspondence to:Yoon-Ah Kook
Department of Orthodontics, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-Gu, Seoul, 06591, Korea.
Tel: +82 2 2258 1776, Fax: +82 2 537 2374
E-mail: kook2002@catholic.ac.kr
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Objective: The aims of this study were to compare the amount of tooth movement after multiple-horizontal and single-vertical microosteoperforation (MOP), and to evaluate the histological changes after orthodontic force application in rabbits.
Materials and Methods: Mandibles of 24 white rabbits have received two experimental interventions: a multiple-horizontal (MH) and a single-vertical (SV) MOP. Defect volume of MOP between two groups was controlled similarly. A hundred cN force was applied via coil spring between the incisor teeth to the first premolars. The amount of tooth movement was measured. Differences in amount of tooth movement and bone variables according to the three time points and the two groups were evaluated using repeated measures ANOVA.
Results: The first premolar showed 1.47 mm of mesial movement in the MH group and 1.84 mm in the SV group, which showed significant difference at week 3 (P < 0.05). There was no significant difference in bone volume and bone fraction between the groups. TRAP-positive cell count was significantly greater at week 3 in both the SV and MH groups compared to week 1.
Conclusions: The amount of tooth movement showed significant difference between the 1st and 3rd weeks for the SV and MH MOP groups, but not between the two groups. Therefore, SV MOP could be considered an effective tool for enhancing tooth movement, especially for molar distalization, uprighting, and protraction to an edentulous area.
Keywords: Corticotomy, Tooth movement, Bone biology
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