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MalocclusionATTACH-1NCT06218641

Discomfort Perceived by a Cohort of Patients Treated With Aligners and Attachments Placed According to Two Different Protocols

A study testing CP - conventional protocol and DP - delayed protocol in people with Malocclusion, run by Fondazione Policlinico Universitario Agostino Gemelli IRCCS at 1 site in Italy.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The primary aim of the study is to compare the perception of pain and discomfort with two different protocols of attachments' placement during clear aligner therapy: the conventional protocol (CP), when attachments' placement is performed are placed at the delivery of the first aligner; the delayed protocol (DP), when… Read more about this study

Who is it for?
Ages 18 to 40 years
Conditions the study is for
Malocclusion
What is being tested?
CP - conventional protocol and DP - delayed protocol
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteItaly
Study dates
10 Oct 2023to 22 Dec 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 40 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Age between 18 and 40 years;
  • Class I and II malocclusion
  • Non-extractive treatment;
  • No missing teeth (third molars excluded);
  • Good oral and general health.
  • Signature of written informed consent to participate in the study.

Who cannot join

  • Patients with tooth-related pain (presence of dental and/or periodontal abscesses and presence of gingivitis)
  • Presence of semi-included elements;
  • Patients taking bisphosphonates or other anti-resorptive drugs;
  • Patients with conditions involving chronic pain and/or on chronic therapy with antifiammatories/opiods or other drugs that may act on pain perception;
  • Patients with temporomandibular disorders;
  • Patients with conditions that may impair the ability to objectively report any sensations of discomfort or pain (e.g., mental retardation, dementia);
  • Refusal to sign the written informed consent to participate in the study.

Trial locations and contacts

1 site in 1 country.

Italy1 site
  • UOC Odontoiatria Generale e Ortodonzia

    Roma, 00168

Other trials in Italy

About this study

Official title: Evaluation of Discomfort Perceived by a Cohort of Patients Treated With Aligners and Attachments Placed According to Two Different Protocols. Single-blind Randomised Controlled Pilot Clinical Study

The primary aim of the study is to compare the perception of pain and discomfort with two different protocols of attachments' placement during clear aligner therapy: the conventional protocol (CP), when attachments' placement is performed are placed at the delivery of the first aligner; the delayed protocol (DP), when the attachments' placement is performed at the delivery of the third aligner. The rationale of this study is to evaluate whether dividing the two phases most associated with the onset of pain and discomfort, namely the initiation of aligner therapy and the placement of attachments, can improve patients' quality of life during clear aligner treatment. Patients' discomfort will be evaluated with a questionnaire adapted by OHIP-14 (Oral Health Impact Profile 14).

Read the detailed description

The study was approved by the Institutional Review board of the Catholic University of the Sacred Hearth, Rome, Italy (prot. n. 17048/23). All adult patients with class I and II malocclusion referred to the Fondazione Policlinico Universitario Agostino Gemelli will be consecutively enrolled for this study.

All patients will be treated with Biomax Nuvola aligners built based on the individual patient's characteristics. The number of aligners and the number/type of attachments will be chosen on the basis of the individual malocclusions. Patients will be randomly allocated in two different groups: the study group includes patients following the delayed protocol (DP), while the control group is composed of patients' following the conventional protocol (CP). The aligner will be changed every 15 days, so the attachment placement in the DP will be performed around 30 days from the beginning of the clear aligner treatment.

The modified OHIP Italian version has 20 questions categorized into 7 sections, concerning the limitation generated by deterioration of oral health in relation to clear aligners: functional, pain, psychological discomfort, physical or psychological or social disability, and handicap. The answers range from 0 (never) to 4 (very often). Possible categories are: never (0), rarely (1), sometimes (2), habitually (3), and very often (4). Low scores indicate better self-perception of quality of life. The customised questionnaire has 9 questions, concerning the limitation generated by discomfort caused by attachments. For 8 questions, the answers range from 0 (never) to 4 (very often). Possible categories are: never (0), rarely (1), sometimes (2), habitually (3), and very often (4). Low scores indicate better self-perception of quality of life. For the last question the answer is based on NRS scale, in fact it ranges from 0 to 10. Lower score indicates less pain perceived by the patient.

The questionnaires will be filled out at different phases of orthodontic treatment, specifically: at the delivery of the first aligner, after 3 and 7 days; at the delivery of the third aligner, after 3 and 7 days. The survey scheduling is arranged according to White, who stated that the patients' perception of pain and discomfort occurred within 7 days after the beginning of the orthodontic treatment; then, patients' quality of life tends to return to a baseline condition.

Conditions
Malocclusion
Being tested
CP - conventional protocol, DP - delayed protocol
Medical subject headings
Malocclusion

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CP - conventional protocolDevice

    All patients will be treated with Biomax Nuvola aligners built based on the individual patient's characteristics. The number of aligners and the number/type of attachments will be chosen on the basis of the individual malocclusions. In this group the attachments will be bonded at the beginning of first aligner. Two different questionnaires will be administered to the enrolled subjects: the italian version of the adapted OHIP-14 questionnaire, and a customized questionnaire.

    The questionnaires will be completed at different stages of orthodontic treatment, as following:

    • 24 hours after the delivery of the first aligner - start of orthodontic treatment;
    • 3 days after the start of orthodontic treatment;
    • 7 days after the start of orthodontic treatment;
    • 24 hours after delivery of the third clear aligner;
    • 3 days after delivery of the third clear aligner;
    • 7 days after delivery of the third clear aligner.
  • DP - delayed protocolDevice

    All patients will be treated with Biomax Nuvola aligners built based on the individual patient's characteristics. The number of aligners and the number/type of attachments will be chosen on the basis of the individual malocclusions. In this group the attachments will be bonded at the beginning of third aligner, approximately one month after the start of orthodontic treatment. Two different questionnaires will be administered to the enrolled subjects: the italian version of the adapted OHIP-14 questionnaire, and a customized questionnaire.

    The questionnaires will be completed at different stages of orthodontic treatment, as following:

    • 24 hours after the delivery of the first aligner - start of orthodontic treatment;
    • 3 days after the start of orthodontic treatment;
    • 7 days after the start of orthodontic treatment;
    • 24 hours after delivery of the third clear aligner;
    • 3 days after delivery of the third clear aligner;
    • 7 days after delivery of the third clear aligner.
Study groups in NCT06218641
Study groupRoleWhat they receive
CP- Conventional protocolActive comparatorA group of patients a group of patients to whom attachments will be bonded at the beginning of the first aligner.
Receives: Device: CP - conventional protocol
DP - delayed protocolExperimentalA group of patients to whom attachments will be bonded at the beginning of the third aligner, approximately one month after the start of orthodontic treatment.
Receives: Device: DP - delayed protocol

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Questionnaires used and how scores were assessed

    The modified OHIP Italian version has 20 questions categorized into 7 sections, concerning the limitation generated by deterioration of oral health in relation to clear aligners: functional, pain, psychological discomfort, physical or psychological or social disability, and handicap. The answers range from 0 (never) to 4 (very often). Possible categories are: never (0), rarely (1), sometimes (2), habitually (3), and very often (4). Low scores indicate better self-perception of quality of life. The customised questionnaire has 9 questions, concerning the limitation generated by discomfort caused by attachments. For 8 questions, the answers range from 0 (never) to 4 (very often). Possible categories are: never (0), rarely (1), sometimes (2), habitually (3), and very often (4). Low scores indicate better self-perception of quality of life. For the last question the answer is based on NRS scale, in fact it ranges from 0 to 10. Lower score indicates less pain perceived by the patient.

    Measured: 37 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Jan 2024
  2. Study start10 Oct 2023
  3. Primary completion30 Apr 2024 (estimated)
  4. Study completion22 Dec 2024 (estimated)

Why it stopped: The study is not feasible in the centre. A new study is presented

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Single-blind randomized controlled clinical trial
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06218641
Sponsor's protocol ID
5699
Acronym
ATTACH-1
Status last verified
Jan 2024
First submitted
12 Jan 2024
Last updated
18 Jul 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes

Publications

  • Weir T. Clear aligners in orthodontic treatment. Aust Dent J. 2017 Mar;62 Suppl 1:58-62. doi: 10.1111/adj.12480.

    PubMed 28297094
  • Bergius M, Kiliaridis S, Berggren U. Pain in orthodontics. A review and discussion of the literature. J Orofac Orthop. 2000;61(2):125-37. doi: 10.1007/BF01300354. English, German.

    PubMed 10783564
  • Bergius M, Berggren U, Kiliaridis S. Experience of pain during an orthodontic procedure. Eur J Oral Sci. 2002 Apr;110(2):92-8. doi: 10.1034/j.1600-0722.2002.11193.x.

    PubMed 12013568
  • Rakhshan H, Rakhshan V. Pain and discomfort perceived during the initial stage of active fixed orthodontic treatment. Saudi Dent J. 2015 Apr;27(2):81-7. doi: 10.1016/j.sdentj.2014.11.002. Epub 2015 Jan 27.

    PubMed 26082574
  • Lew KK. Attitudes and perceptions of adults towards orthodontic treatment in an Asian community. Community Dent Oral Epidemiol. 1993 Feb;21(1):31-5. doi: 10.1111/j.1600-0528.1993.tb00715.x.

    PubMed 8432102
  • Antonio-Zancajo L, Montero J, Albaladejo A, Oteo-Calatayud MD, Alvarado-Lorenzo A. Pain and Oral-Health-Related Quality of Life in Orthodontic Patients During Initial Therapy with Conventional, Low-Friction, and Lingual Brackets and Aligners (Invisalign): A Prospective Clinical Study. J Clin Med. 2020 Jul 3;9(7):2088. doi: 10.3390/jcm9072088.

    PubMed 32635196
  • Tamer I, Oztas E, Marsan G. Orthodontic Treatment with Clear Aligners and The Scientific Reality Behind Their Marketing: A Literature Review. Turk J Orthod. 2019 Dec 1;32(4):241-246. doi: 10.5152/TurkJOrthod.2019.18083. eCollection 2019 Dec.

    PubMed 32110470
  • White DW, Julien KC, Jacob H, Campbell PM, Buschang PH. Discomfort associated with Invisalign and traditional brackets: A randomized, prospective trial. Angle Orthod. 2017 Nov;87(6):801-808. doi: 10.2319/091416-687.1. Epub 2017 Jul 28.

    PubMed 28753032
  • Cardoso PC, Espinosa DG, Mecenas P, Flores-Mir C, Normando D. Pain level between clear aligners and fixed appliances: a systematic review. Prog Orthod. 2020 Jan 20;21(1):3. doi: 10.1186/s40510-019-0303-z.

    PubMed 31956934
  • Almasoud NN. Pain perception among patients treated with passive self-ligating fixed appliances and Invisalign(R) aligners during the first week of orthodontic treatment. Korean J Orthod. 2018 Sep;48(5):326-332. doi: 10.4041/kjod.2018.48.5.326. Epub 2018 Aug 8.

    PubMed 30206531
  • Franchignoni M, Giordano A, Brigatti E, Migliario M, Levrini L, Ferriero G. [Psychometric properties of the Italian version of the reduced form of the Oral Health Impact Profile (OHIP-14)]. G Ital Med Lav Ergon. 2010 Jul-Sep;32(3 Suppl B):B71-8. Italian.

    PubMed 21302527
  • Thong ISK, Jensen MP, Miro J, Tan G. The validity of pain intensity measures: what do the NRS, VAS, VRS, and FPS-R measure? Scand J Pain. 2018 Jan 26;18(1):99-107. doi: 10.1515/sjpain-2018-0012.

    PubMed 29794282

Questions about this trial

What is this clinical trial studying?

A study testing CP - conventional protocol and DP - delayed protocol in people with Malocclusion, run by Fondazione Policlinico Universitario Agostino Gemelli IRCCS at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 18 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Questionnaires used and how scores were assessed (time frame: 37 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06218641, which also lists 12 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jul 2024.

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