The orthodontic implant site-switching technique: a preliminary study in dogs

Abstract Background To evaluate the quantity and quality of bone in the newly formed edentulous area produced by the orthodontic implant site-switching technique. Methods The bilateral maxillary first premolars of five beagle dogs were extracted and bone defects were created. The right and left side...

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Main Authors: Meng Lu, Weixu Li, Yeqing Wang, Lixian Yuan, Meng Cao
Format: Article
Language:English
Published: BMC 2023-07-01
Series:Head & Face Medicine
Subjects:
Online Access:https://doi.org/10.1186/s13005-023-00373-2
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author Meng Lu
Weixu Li
Yeqing Wang
Lixian Yuan
Meng Cao
author_facet Meng Lu
Weixu Li
Yeqing Wang
Lixian Yuan
Meng Cao
author_sort Meng Lu
collection DOAJ
description Abstract Background To evaluate the quantity and quality of bone in the newly formed edentulous area produced by the orthodontic implant site-switching technique. Methods The bilateral maxillary first premolars of five beagle dogs were extracted and bone defects were created. The right and left sides of the maxilla were randomly divided into control and experimental sides. On the experimental side, the maxillary second premolar was mesially moved into the position of the missing first premolar. On the control side, the second maxillary premolar was extracted. Six months later, the beagles were euthanized. Microcomputer tomography was used to analyze bone microstructure parameters, alveolar bone height and alveolar bone width of the regenerated bone. Histological analysis was performed by staining tissue sections with toluidine blue. Results Median BV/TV values in the experimental group (81.78%) were significantly larger than those in the control group (35.67%; p = 0.04). Median Tb.Sp values in the experimental group (0.14 mm) were significantly lower than those in the control group (0.54 mm; p = 0.04). Median Tb.Th values in the experimental group (0.48 mm) were significantly higher than those in the control group (0.21 mm; p = 0.04). Median Tb.Pf values in the experimental group (0.65/mm) were significantly lower than those in the control group (3.15/mm; p = 0.04). There was no significant difference in the trabecular number (Tb.N) between the two groups (p = 0.23). The median alveolar bone height values in the experimental group (-0.81 mm) were significantly higher than those in the control group (-2.11 mm; p = 0.04) at a distance 5 mm from the mesial CEJ of the third premolar. The median alveolar bone height values in the experimental group (0.45 mm) were significantly higher than those in the control group (-1.70 mm; p = 0.04) at a distance 6 mm from the mesial CEJ of the third premolar. There was no significant difference in alveolar bone width when compared between the two groups (p > 0.05). Conclusions The newly formed edentulous area created by orthodontic treatment had more compact and thicker trabeculae than the extraction socket. Furthermore, the newly formed edentulous area had a greater alveolar bone height available for the placement of implants.
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spelling doaj.art-e5e5a7cbc60e441880121aa281070b052023-07-16T11:29:20ZengBMCHead & Face Medicine1746-160X2023-07-011911810.1186/s13005-023-00373-2The orthodontic implant site-switching technique: a preliminary study in dogsMeng Lu0Weixu Li1Yeqing Wang2Lixian Yuan3Meng Cao4Department of Orthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral DiseasesDepartment of Orthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral DiseasesDepartment of Orthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral DiseasesDepartment of Orthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral DiseasesDepartment of Orthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral DiseasesAbstract Background To evaluate the quantity and quality of bone in the newly formed edentulous area produced by the orthodontic implant site-switching technique. Methods The bilateral maxillary first premolars of five beagle dogs were extracted and bone defects were created. The right and left sides of the maxilla were randomly divided into control and experimental sides. On the experimental side, the maxillary second premolar was mesially moved into the position of the missing first premolar. On the control side, the second maxillary premolar was extracted. Six months later, the beagles were euthanized. Microcomputer tomography was used to analyze bone microstructure parameters, alveolar bone height and alveolar bone width of the regenerated bone. Histological analysis was performed by staining tissue sections with toluidine blue. Results Median BV/TV values in the experimental group (81.78%) were significantly larger than those in the control group (35.67%; p = 0.04). Median Tb.Sp values in the experimental group (0.14 mm) were significantly lower than those in the control group (0.54 mm; p = 0.04). Median Tb.Th values in the experimental group (0.48 mm) were significantly higher than those in the control group (0.21 mm; p = 0.04). Median Tb.Pf values in the experimental group (0.65/mm) were significantly lower than those in the control group (3.15/mm; p = 0.04). There was no significant difference in the trabecular number (Tb.N) between the two groups (p = 0.23). The median alveolar bone height values in the experimental group (-0.81 mm) were significantly higher than those in the control group (-2.11 mm; p = 0.04) at a distance 5 mm from the mesial CEJ of the third premolar. The median alveolar bone height values in the experimental group (0.45 mm) were significantly higher than those in the control group (-1.70 mm; p = 0.04) at a distance 6 mm from the mesial CEJ of the third premolar. There was no significant difference in alveolar bone width when compared between the two groups (p > 0.05). Conclusions The newly formed edentulous area created by orthodontic treatment had more compact and thicker trabeculae than the extraction socket. Furthermore, the newly formed edentulous area had a greater alveolar bone height available for the placement of implants.https://doi.org/10.1186/s13005-023-00373-2OrthodonticsDental ImplantsMicro-CTAnimal experiments
spellingShingle Meng Lu
Weixu Li
Yeqing Wang
Lixian Yuan
Meng Cao
The orthodontic implant site-switching technique: a preliminary study in dogs
Head & Face Medicine
Orthodontics
Dental Implants
Micro-CT
Animal experiments
title The orthodontic implant site-switching technique: a preliminary study in dogs
title_full The orthodontic implant site-switching technique: a preliminary study in dogs
title_fullStr The orthodontic implant site-switching technique: a preliminary study in dogs
title_full_unstemmed The orthodontic implant site-switching technique: a preliminary study in dogs
title_short The orthodontic implant site-switching technique: a preliminary study in dogs
title_sort orthodontic implant site switching technique a preliminary study in dogs
topic Orthodontics
Dental Implants
Micro-CT
Animal experiments
url https://doi.org/10.1186/s13005-023-00373-2
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