학술논문
The minimal important difference in orthodontic treatment duration: a survey across adult patients.
Document Type
Academic Journal
Author
Mheissen S; Private Practice, Damascus, Syria.; Koletsi D; Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich 8032- CH, Switzerland.; Meta-Research Innovation Center at Stanford (METRICS), Stanford University, California CA 94305-2004, United States.; Joria AB; Clinic of Orthodontics, Orthodontic department, Aleppo Specialized Center, Aleppo City 021, Syria.; Khan H; CMH Institute of Dentistry Lahore, National University of Medical Sciences, Orthoodntic department, Punjab, 210 A GOR5 Faisal Twon, Lahore, Pakistan.; Alharbi F; Department of Preventive Dental Sciences/College of Dentistry, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia.; Koretsi V; Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich 8032- CH, Switzerland.; Awaisi ZH; Orthodontic Department, Nishtar Institute of Dentistry, Multan D 351 buch villas Multan , Pakistan.; Qamar R; Orthodontic Department, University of Lahore, 1-KM, Raiwind Road, Lahore, Pakistan.; Saeed H; Orthodontic Department, University of Lahore, 1-KM, Raiwind Road, Lahore, Pakistan.; Alrefaiy YA; Private Practice, Aleppo, Syria.; Eliades T; Clinic of Orthodontics and Pediatric Dentistry, Center of Dental Medicine, University of Zurich, Zurich 8032- CH, Switzerland.; Guyatt G; Health Research Methods, Evidence, and Impact, Faculty of Health Sciences, McMaster University, Ontario L8H2R5, Canada.
Source
Publisher: Oxford University Press Country of Publication: England NLM ID: 7909010 Publication Model: Print Cited Medium: Internet ISSN: 1460-2210 (Electronic) Linking ISSN: 01415387 NLM ISO Abbreviation: Eur J Orthod Subsets: MEDLINE
Subject
Language
English
Abstract
Background: The minimal important difference (MID) is defined as the smallest difference that the patient perceives as important. Furthermore, the smallest worthwhile effect (SWE) is the important change measured with the benefit-harm trade-off method. The aim of this study was to evaluate the MID in orthodontic treatment duration to inform the decision regarding seeking procedures to accelerate orthodontic tooth movement and reduce treatment duration.
Methods: We constructed a survey eliciting views of the MID from adult participants from four countries undergoing orthodontic treatment. Ten questions addressed reduction in the treatment duration for both durations 12 and 24 months, and four questions were related to the reduction in treatment duration that the patients would require to undergo surgical or non-surgical adjunctive procedures. We applied a univariable random effects logistic regression model to examine the association between the participants' characteristics and the MID. Then, we fitted a multivariable logistic random effects regression including significant predictors.
Results: Four hundred and fifty adults, with a median age of 21 (interquartile range: 19-24), undergoing orthodontic treatment participated in the survey. Of the respondents, 60% considered 15 days as a trivial reduction from 12 months duration of therapy and 70% considered 15 days a trivial reduction from 24 months. Of the respondents, 48% considered the period of 2 months a moderate reduction from 12 months, and 60% considered 2 months a moderate reduction from 24 months. From these results, we inferred that patients considered reductions of approximately 1 month as the MID in the treatment duration for both 12 and 24 months. However, SWE was considerably more than the MID for most of the participants to decide undergoing surgical adjunctive procedures to reduce the time of therapy. The participants required smaller SWE to undergo non-surgical procedures compared to surgical procedures.
Conclusion: The MID in the treatment duration is one month for both treatment durations 12 and 24 months. Patients require a greater SWE than the MID to undergo adjunctive procedures to shorten the duration, particularly for surgical procedures.
(© The Author(s) 2024. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
Methods: We constructed a survey eliciting views of the MID from adult participants from four countries undergoing orthodontic treatment. Ten questions addressed reduction in the treatment duration for both durations 12 and 24 months, and four questions were related to the reduction in treatment duration that the patients would require to undergo surgical or non-surgical adjunctive procedures. We applied a univariable random effects logistic regression model to examine the association between the participants' characteristics and the MID. Then, we fitted a multivariable logistic random effects regression including significant predictors.
Results: Four hundred and fifty adults, with a median age of 21 (interquartile range: 19-24), undergoing orthodontic treatment participated in the survey. Of the respondents, 60% considered 15 days as a trivial reduction from 12 months duration of therapy and 70% considered 15 days a trivial reduction from 24 months. Of the respondents, 48% considered the period of 2 months a moderate reduction from 12 months, and 60% considered 2 months a moderate reduction from 24 months. From these results, we inferred that patients considered reductions of approximately 1 month as the MID in the treatment duration for both 12 and 24 months. However, SWE was considerably more than the MID for most of the participants to decide undergoing surgical adjunctive procedures to reduce the time of therapy. The participants required smaller SWE to undergo non-surgical procedures compared to surgical procedures.
Conclusion: The MID in the treatment duration is one month for both treatment durations 12 and 24 months. Patients require a greater SWE than the MID to undergo adjunctive procedures to shorten the duration, particularly for surgical procedures.
(© The Author(s) 2024. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)