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Orthodontically induced root resorption in endodontically treated and vital teeth: a cone beam computer tomographic
Ziang Liu1,2,3, Yuqing Ouyang1,2,3, Yiting Lou1,2,3
1Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China.
Progress in Orthodontics
|February 26, 2025
Summary
Root-filled teeth (RFT) show significantly less orthodontically induced root resorption (OIRR) compared to vital pulp teeth (VPT). Treatment factors like duration and movement distance influence OIRR, necessitating personalized orthodontic plans.
Area of Science:
- Orthodontics and Dental Research
- Biomaterials and Dental Tissue Engineering
Background:
- Orthodontically induced root resorption (OIRR) is a frequent complication of orthodontic therapy.
- This study investigates OIRR differences between root-filled teeth (RFT) and vital pulp teeth (VPT).
Purpose of the Study:
- To compare the degree of OIRR in RFT versus VPT.
- To analyze factors influencing OIRR, including treatment variables.
Main Methods:
- A retrospective study of 69 patients undergoing orthodontic treatment.
- Cone-beam computed tomography (CBCT) used for 3D root length measurement before and after treatment.
- Analysis of OIRR in relation to gender, treatment type, tooth type, age, treatment duration, and root movement distance.
Main Results:
- RFT exhibited significantly less OIRR than VPT (P < 0.05).
- Treatment duration and root movement distance positively correlated with OIRR for both RFT and VPT.
- Fixed appliances and extraction cases showed varied OIRR impacts depending on tooth type (RFT vs. VPT).
Conclusions:
- RFT demonstrate reduced OIRR compared to VPT following orthodontic treatment.
- Key factors influencing OIRR include treatment type, appliance used, duration, and extent of root movement.
- Personalized treatment strategies and close monitoring are essential for minimizing OIRR risks.
