Influence of Low-level Laser Therapy on Stability and Displacement of Orthodontic Miniscrew Implants
17. januar 2018 opdateret af: Guido Artemio Marañón Vásquez, University of Sao Paulo
Effect of Low-level Laser Therapy on Stability and Displacement of Orthodontic Miniscrew Implants With Mediate and Immediate Force Application
The purpose of this study is to evaluate the effect of Low level laser therapy on stability and displacement of orthodontic miniscrew implants using two different force application protocols.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
The aim of this study is to evaluate the effect of Low level laser therapy (LLLT) on stability and displacement of orthodontic miniscrew implants with mediate and immediate force application.
They will be assessed 48 miniscrew implants placed in patients in orthodontic treatment at the postgraduate clinical in Orthodontics, at School of Dentistry of Ribeirão Preto, University of São Paulo.
They will be randomly divided into 4 groups: 1- LLLT and immediate force application; 2- LLLT and force application 4 weeks after implantation; 3- immediate force application without LLLT and 4- force application 4 weeks after implantation without LLLT.
Orthodontic force of 150 gF will be applied for 3 months.
A low power laser device Therapy XT with a wavelength of 660 nm and output of 100 mW immediately after implantation (energy density: 4J/cm2), and 808 nm with 100 mW (energy density: 8J/cm2), every 48 hours for two weeks in the following applications will be used.
The stability will be assessed using Resonance Frequency Analysis (RFA) at three times: the implantation day (T1), one month (T2) and after 3 months of force application (T3).
Stability measures will be evaluated in Implant Stability Quotient (ISQ).
To assess the amount of miniscrew implant displacement, it will be used Cone Beam Computed Tomography (CBCT) at the beginning (CT1) and final of the application of orthodontic force (CT2).
Three-dimensional models will be created in specific programs and superimpositions of CT1 and CT2 will be used to measure the distance in millimeters between inicial and final position.
The evaluation will be carried out in three points: head of miniscrew implant (point C), thread (point R) and apex of miniscrew implant (point A).
The results will be statistically analyzed according to nature of the data and the significance level to be adopted will be 5%.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
29
Fase
- Ikke anvendelig
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
11 år og ældre (Barn, Voksen, Ældre voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- Patient with permanent teeth.
- Use of miniscrews in orthodontic planning.
- Miniscrews placed in the labial upper and lower posterior regions.
- Patient who agree to participate (Informed consent)
Exclusion Criteria:
- Patient with systemic disease.
- Patient with periodontal disease and/or inadequate oral hygiene.
- Use of drugs chronically.
- Patients that consume alcohol or tobacco.
- Use of fixed palatal or lingual orthodontic devices.
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Støttende pleje
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: LLLT + immediate force
Use of Low-level laser therapy and not mediate orthodontic force application (150 gF the day of the implantation).
|
|
|
Eksperimentel: LLLT + mediate force
Use of Low-level laser therapy and mediate orthodontic force application (150 gF 4 weeks after the day of the implantation).
|
Mediate force application protocol: orthodontic force application (150 gF) 4 weeks after the day of the implantation.
|
|
Ingen indgriben: Immediate force application
Not mediate orthodontic force application (150 gF the day of the implantation), without use of Low-level laser therapy.
|
|
|
Eksperimentel: Mediate force application
Mediate orthodontic force application (150 gF 4 weeks after the day of the implantation), without use of Low-level laser therapy.
|
Mediate force application protocol: orthodontic force application (150 gF) 4 weeks after the day of the implantation.
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change from baseline miniscrew implant stability at 1 and 3 months of force application.
Tidsramme: T1: Implantation day; T2: after 1 month; and, T3: after 3 months of force application.
|
It will be used a Resonance frequency analysis (RFA) equipment.
Stability measures will be evaluated using a unique unit of measure: Implant stability quotient (ISQ).
All groups will be evaluated the day of the implantation (T1) and after 1 month (T2).The last stability measure (T3) will be done 3 months after the implantation day in the groups without mediate force application, and 4 months after the implantation day in the groups with mediate force application.
|
T1: Implantation day; T2: after 1 month; and, T3: after 3 months of force application.
|
|
Change from baseline miniscrew implant position at 3 months of force application.
Tidsramme: CT1: Implantation day; and, CT2: 3 months of orthodontic force application.
|
It will be used Cone Beam Computed tomography (CBCT).
Three-dimensional models will be created in specific programs and superimpositions of CT1 and CT2 will be used to measure the distance in millimeters between initial and final position.
|
CT1: Implantation day; and, CT2: 3 months of orthodontic force application.
|
Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Efterforskere
- Ledende efterforsker: Guido A Marañón Vásquez, DDS, University of Sao Paulo
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
1. marts 2016
Primær færdiggørelse (Faktiske)
1. februar 2017
Studieafslutning (Faktiske)
1. august 2017
Datoer for studieregistrering
Først indsendt
23. august 2016
Først indsendt, der opfyldte QC-kriterier
31. august 2016
Først opslået (Skøn)
7. september 2016
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
18. januar 2018
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
17. januar 2018
Sidst verificeret
1. januar 2018
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- USaoPaulo-1
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