Orthodontic Treatment with Clear Aligners and The Scientific Reality Behind Their Marketing: A Literature Review.
İpek Tamer, Evren Öztaş, Gülnaz Marşan
https://pubmed.ncbi.nlm.nih.gov/32110470/Actively Recruiting
Led by Fondazione Policlinico Universitario Agostino Gemelli IRCCS · Updated on 2025-08-27
24
Participants Needed
1
Research Sites
8 weeks
Total Duration
This study focuses on patients with class I and II malocclusion undergoing clear aligner therapy. It aims to compare pain and discomfort levels between two protocols for placing attachments during treatment the conventional protocol where attachments are placed at the first aligner delivery, and a delayed protocol where attachments are placed at the third aligner delivery. The goal is to see if separating these phases, both linked to pain onset, improves patients quality of life during treatment. Pain and discomfort will be assessed using a questionnaire adapted from OHIP-14. Participants will be treated with Biomax Nuvola aligners customized to their dental needs. They will be randomly assigned to either the conventional group with attachments placed at the first aligner or the delayed group with attachments placed at the third aligner, about 30 days into treatment. The aligner is changed every 15 days. Questionnaires measuring oral health impact and attachment discomfort will be completed at six time points 1, 3, and 7 days after the first aligner delivery, and 1, 3, and 7 days after the third aligner delivery. During the study, patients will fill out two questionnaires evaluating functional limitation, pain, psychological discomfort, disability, and social handicap related to aligners and attachments. Responses are scored to reflect quality of life and pain levels. The study is single-blind, with data collectors unaware of group assignments. Researchers will monitor discomfort reduction, timing of pain onset and disappearance, and overall quality of life over one year. Participation involves regular questionnaire completion and use of aligners according to schedule.
CONDITIONS
Evaluation of the Perceived Experience of Patients Treated With Aligners With Two Different Timings
M
Massimo Cordaro
E
Edoardo Staderini
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Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Lead Sponsor
You may qualify if you...
You will not qualify if you...
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Approximately 3 months or longer depending on treatment plan
Participants begin treatment with Biomax Nuvola aligners customized to their individual needs. Attachments are placed either at the start of the first aligner (conventional protocol) or at the start of the third aligner around 30 days into treatment (delayed protocol).
Visits occur every 15 days to change aligners, with attachment placement timing varying by group
Duration - 7 days after delivery of first and third aligners
Participants complete questionnaires assessing discomfort and quality of life at multiple points: 24 hours, 3 days, and 7 days after the delivery of the first and third aligners.
Questionnaires completed remotely at specified intervals
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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https://pubmed.ncbi.nlm.nih.gov/29794282/Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Lead Sponsor