Predictability of Part-time Wearing of Removable Clear Aligner Therapy Versus Full Time
1 other identifier
interventional
14
1 country
1
Brief Summary
14 Patients with mild to moderate crowding and spacing will be selected according to inclusion criteria. Treatment planning will be done on Maestro® software. An impression will be taken and scanned by an extra-oral scanner. The models will be 3D printed and aligner trays will be fabricated to be delivered on biweekly basis to be worn 16 hours per day for one group and 22 hours for the other group. Superimposition of the achieved clinical model over the predicted model will be done. Linear and angular measurements will be calculated for each tooth.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Nov 2020
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 1, 2020
CompletedFirst Submitted
Initial submission to the registry
June 27, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2023
CompletedFirst Posted
Study publicly available on registry
February 12, 2024
CompletedFebruary 12, 2024
February 1, 2024
1.5 years
June 27, 2021
February 2, 2024
Conditions
Outcome Measures
Primary Outcomes (2)
Linear Movement Discrepancies Between Digital Software Models and Clinical Models
Translation movements (mm) were compared for each tooth between predicted models on Software predicted models and actual clinical models for the study groups
an average of 1 year
Angular Movement Discrepancies Between Digital Software Models and Clinical Models
Translation movements (Degrees) were compared for each tooth between predicted models on Software predicted models and actual clinical models for the study groups
an average of 1 year
Study Arms (2)
part-time wear
ACTIVE COMPARATORPatients will be instructed to wear the aligner for 16 hours per day, then the aligner going to be changed to the next step according to its numerical order in the software
Full-time wear
ACTIVE COMPARATORPatients will be instructed to wear the aligner for 22 hours per day, then the aligner going to be changed to the next step according to its numerical order in the software
Interventions
patient are instructed to wear aligners
Eligibility Criteria
You may qualify if:
- Permeant dentition
- Mild to moderate crowding and spacing in maxilla and mandible according to Little's Irregularity Index
- Non-extraction cases
You may not qualify if:
- Severe crowding and spacing
- Systematic diseases
- Compromised periodontal health
- Craniofacial syndromes
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Future University in Egypt
Cairo, New Caro, 11865, Egypt
Related Publications (22)
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PMID: 25439196BACKGROUNDDjeu G, Shelton C, Maganzini A. Outcome assessment of Invisalign and traditional orthodontic treatment compared with the American Board of Orthodontics objective grading system. Am J Orthod Dentofacial Orthop. 2005 Sep;128(3):292-8; discussion 298. doi: 10.1016/j.ajodo.2005.06.002.
PMID: 16168325BACKGROUNDPapadimitriou A, Mousoulea S, Gkantidis N, Kloukos D. Clinical effectiveness of Invisalign(R) orthodontic treatment: a systematic review. Prog Orthod. 2018 Sep 28;19(1):37. doi: 10.1186/s40510-018-0235-z.
PMID: 30264270BACKGROUNDMelsen B. Northcroft lecture: how has the spectrum of orthodontics changed over the past decades? J Orthod. 2011 Jun;38(2):134-43; quiz 145. doi: 10.1179/14653121141362.
PMID: 21677105BACKGROUNDPratt MC, Kluemper GT, Lindstrom AF. Patient compliance with orthodontic retainers in the postretention phase. Am J Orthod Dentofacial Orthop. 2011 Aug;140(2):196-201. doi: 10.1016/j.ajodo.2010.02.035.
PMID: 21803257BACKGROUNDKacer KA, Valiathan M, Narendran S, Hans MG. Retainer wear and compliance in the first 2 years after active orthodontic treatment. Am J Orthod Dentofacial Orthop. 2010 Nov;138(5):592-8. doi: 10.1016/j.ajodo.2008.12.027.
PMID: 21055599BACKGROUNDJacox LA, Mihas P, Cho C, Lin FC, Ko CC. Understanding technology adoption by orthodontists: A qualitative study. Am J Orthod Dentofacial Orthop. 2019 Mar;155(3):432-442. doi: 10.1016/j.ajodo.2018.08.018.
PMID: 30826046BACKGROUNDAlford TJ, Roberts WE, Hartsfield JK Jr, Eckert GJ, Snyder RJ. Clinical outcomes for patients finished with the SureSmile method compared with conventional fixed orthodontic therapy. Angle Orthod. 2011 May;81(3):383-8. doi: 10.2319/071810-413.1. Epub 2011 Jan 24.
PMID: 21261488BACKGROUNDBrown MW, Koroluk L, Ko CC, Zhang K, Chen M, Nguyen T. Effectiveness and efficiency of a CAD/CAM orthodontic bracket system. Am J Orthod Dentofacial Orthop. 2015 Dec;148(6):1067-74. doi: 10.1016/j.ajodo.2015.07.029.
PMID: 26672713BACKGROUNDKravitz ND, Kusnoto B, BeGole E, Obrez A, Agran B. How well does Invisalign work? A prospective clinical study evaluating the efficacy of tooth movement with Invisalign. Am J Orthod Dentofacial Orthop. 2009 Jan;135(1):27-35. doi: 10.1016/j.ajodo.2007.05.018.
PMID: 19121497BACKGROUNDZhang XJ, He L, Guo HM, Tian J, Bai YX, Li S. Integrated three-dimensional digital assessment of accuracy of anterior tooth movement using clear aligners. Korean J Orthod. 2015 Nov;45(6):275-81. doi: 10.4041/kjod.2015.45.6.275. Epub 2015 Nov 20.
PMID: 26629473BACKGROUNDBuschang PH, Ross M, Shaw SG, Crosby D, Campbell PM. Predicted and actual end-of-treatment occlusion produced with aligner therapy. Angle Orthod. 2015 Sep;85(5):723-7. doi: 10.2319/043014-311.1. Epub 2014 Nov 5.
PMID: 25372019BACKGROUNDWeir T. Clear aligners in orthodontic treatment. Aust Dent J. 2017 Mar;62 Suppl 1:58-62. doi: 10.1111/adj.12480.
PMID: 28297094BACKGROUNDGrunheid T, Loh C, Larson BE. How accurate is Invisalign in nonextraction cases? Are predicted tooth positions achieved? Angle Orthod. 2017 Nov;87(6):809-815. doi: 10.2319/022717-147.1. Epub 2017 Jul 7.
PMID: 28686090BACKGROUNDRossini G, Parrini S, Castroflorio T, Deregibus A, Debernardi CL. Efficacy of clear aligners in controlling orthodontic tooth movement: a systematic review. Angle Orthod. 2015 Sep;85(5):881-9. doi: 10.2319/061614-436.1. Epub 2014 Nov 20.
PMID: 25412265BACKGROUNDSimon M, Keilig L, Schwarze J, Jung BA, Bourauel C. Treatment outcome and efficacy of an aligner technique--regarding incisor torque, premolar derotation and molar distalization. BMC Oral Health. 2014 Jun 11;14:68. doi: 10.1186/1472-6831-14-68.
PMID: 24923279BACKGROUNDCharalampakis O, Iliadi A, Ueno H, Oliver DR, Kim KB. Accuracy of clear aligners: A retrospective study of patients who needed refinement. Am J Orthod Dentofacial Orthop. 2018 Jul;154(1):47-54. doi: 10.1016/j.ajodo.2017.11.028.
PMID: 29957318BACKGROUNDIzhar A, Singh G, Goyal V, Singh R, Gupta N, Pahuja P. Comparative Assessment of Clinical and Predicted Treatment Outcomes of Clear Aligner Treatment: An in Vivo Study. Turk J Orthod. 2019 Dec 1;32(4):229-235. doi: 10.5152/TurkJOrthod.2019.19019. eCollection 2019 Dec.
PMID: 32110468BACKGROUNDLombardo L, Arreghini A, Ramina F, Huanca Ghislanzoni LT, Siciliani G. Predictability of orthodontic movement with orthodontic aligners: a retrospective study. Prog Orthod. 2017 Nov 13;18(1):35. doi: 10.1186/s40510-017-0190-0.
PMID: 29130127BACKGROUNDChisari JR, McGorray SP, Nair M, Wheeler TT. Variables affecting orthodontic tooth movement with clear aligners. Am J Orthod Dentofacial Orthop. 2014 Apr;145(4 Suppl):S82-91. doi: 10.1016/j.ajodo.2013.10.022.
PMID: 24680028BACKGROUNDThickett E, Power S. A randomized clinical trial of thermoplastic retainer wear. Eur J Orthod. 2010 Feb;32(1):1-5. doi: 10.1093/ejo/cjp061. Epub 2009 Oct 14.
PMID: 19828592BACKGROUNDGill DS, Naini FB, Jones A, Tredwin CJ. Part-time versus full-time retainer wear following fixed appliance therapy: a randomized prospective controlled trial. World J Orthod. 2007 Fall;8(3):300-6.
PMID: 17902334BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Hala Mounir, Prof
Future University in Egypt
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principle Investigator
Study Record Dates
First Submitted
June 27, 2021
First Posted
February 12, 2024
Study Start
November 1, 2020
Primary Completion
May 1, 2022
Study Completion
December 1, 2023
Last Updated
February 12, 2024
Record last verified: 2024-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- Data will be available after publication, indefinitely
- Access Criteria
- Professors of other institutions will have access to the data if required via email
The trial results will be available to the participants, health care professionals and the public by publication of the study in high quality national and international journals. The principal investigator will present a copy of the thesis at the Faculty of Oral and Dental Medicine, Future University in Egypt library and will distribute additional copies among the main universities in Egypt.