Two Low-level Laser Irradiation Protocols on the Rate of Canine Retraction
11. juni 2021 opdateret af: Hams Hamed Abdelrahman
The Effect of Two Low-level Laser Irradiation Protocols on the Rate of Canine Retraction (a Randomized Controlled Clinical Trial)
Several methods aiming at the acceleration of orthodontic tooth movement have been proposed, including low-level laser therapy (LLLT), which showed promising results.
However, the frequency of patient recall has been one of its major drawbacks.
Studieoversigt
Status
Aktiv, ikke rekrutterende
Betingelser
Detaljeret beskrivelse
A randomized controlled clinical trial will be conducted to address the aim of the study. Sixteen patients will be recruited, requiring the therapeutic extraction of the maxillary 1st premolars, with subsequent canine retraction into the extraction space. The sample will be randomly divided into 2 equal groups, each including 8 subjects.
In Group A, one side of the maxillary arch will randomly receive LLLT on days 0, 3, 7, 14, and every 2 weeks thereafter, while in Group B, one side will also be randomly chosen to receive LLLT every 3 weeks. The contralateral sides of both groups will serve as the controls. The LLLT applied will be Diode laser emitting infrared radiation at wavelength of 980 nm, in a continuous mode.
Canine retraction in both groups will be carried out bilaterally using nickel-titanium closed-coil spring, delivering 150 grams of force, and the rate of tooth movement will be checked every 3 weeks, over a period of 3 months. Other variables will be also examined including, interleukin-1β level in the gingival crevicular fluid, root resorption, and molar anchorage loss.
Undersøgelsestype
Interventionel
Tilmelding (Forventet)
16
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
-
-
Alexandria, Egypten
- Alexandria Faculty of Dentistry
-
-
Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
15 år til 25 år (Barn, Voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- Malocclusion requires at least the extraction of maxillary first premolars, followed by canine retraction into the extraction site.
- Normal shape and structure of the maxillary canines, with no history of root canal treatment.
- Patients with good oral hygiene, and a healthy periodontal condition.
Exclusion Criteria:
- Patients who underwent previous orthodontic treatment.
- Patients currently receiving drug therapy that may affect orthodontic tooth movement, e.g. hormonal therapy and corticosteroids.
- Patients with chronic diseases that may affect the rate of tooth movement.
- Pregnancy and lactation
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: low-level laser therapy applied on days 0, 3,7,14 & every 2 weeks
|
one side of the maxillary arch will randomly receive LLLT on days 0, 3, 7, 14, and every 2 weeks thereafter and the contralateral side will serve as the controls.
|
|
Aktiv komparator: low-level laser therapy applied every 3 weeks
|
one side will also be randomly chosen to receive LLLT every 3 weeks and the contralateral side will serve as the controls.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in rate of canine retraction
Tidsramme: at baseline and every 3 weeks for 3 months
|
Several landmarks will be identified on the dental cast, including the mid-palatal raphe, the most medial points on the third right and left rugae, and the cusp tips of the right and left maxillary canines.
Perpendicular lines will be drawn from the medial points of the right and left third rugae, and the cusp tips of the right and left maxillary canines to the mid-palatal raphe.
The antero-posterior measurements will be carried out between the canine lines and the third rugae lines bilaterally, to assess the rate of canine retraction.
|
at baseline and every 3 weeks for 3 months
|
|
change in IL-1β level in the Ginigval Crevicular Fluid
Tidsramme: at baseline, 7th, 17th and 21st day
|
Samples from the GCF will be collected at baseline (before the first canine retraction), in addition to days 7, 14, and 21.
GCF samples will be collected from the distal crevices of the canines, in Groups A and B, on both the experimental and control sides.
Measurement of IL-1β level in the GCF will be performed using an ELISA kit.
|
at baseline, 7th, 17th and 21st day
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
change canine root resorption:
Tidsramme: at baseline and 3 months
|
Root resorption of the maxillary canines will be evaluated and measured on the acquired pre-retraction and post-retraction CBCT scans.
|
at baseline and 3 months
|
|
Change molar anchorage loss
Tidsramme: at baseline and every 3 weeks for 3 months
|
Perpendicular lines will be drawn from the central fossae of both maxillary right and left first molars to the mid-palatal raphe.
Consequently, molar anchorage loss will be calculated by measuring the distance between those lines, and the lines representing the third rugae as previously mentioned.
|
at baseline and every 3 weeks for 3 months
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. januar 2020
Primær færdiggørelse (Forventet)
15. juni 2021
Studieafslutning (Forventet)
15. juni 2021
Datoer for studieregistrering
Først indsendt
3. juni 2021
Først indsendt, der opfyldte QC-kriterier
11. juni 2021
Først opslået (Faktiske)
15. juni 2021
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
15. juni 2021
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
11. juni 2021
Sidst verificeret
1. juni 2021
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- Canine retraction 2020
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
Ingen
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .