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Influence of Low-level Laser Therapy on Stability and Displacement of Orthodontic Miniscrew Implants

17 januari 2018 bijgewerkt door: 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.

Studie Overzicht

Gedetailleerde beschrijving

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%.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

29

Fase

  • Niet toepasbaar

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

11 jaar en ouder (Kind, Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Ja

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

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.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Ondersteunende zorg
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: LLLT + immediate force
Use of Low-level laser therapy and not mediate orthodontic force application (150 gF the day of the implantation).
  1. Immediate post-operative period (implantation day) Red emission (660 nm) Energy density: 4 J/cm2 Power: 0.1W Irradiation area: 0,5 cm2 One application, 10 seconds of non-contact irradiation (01 point at the area surrounding the miniscrew) at a distance of 15,5 mm.
  2. Mediate post-operative period (after implantation day) Infrared emission (808 nm) Energy density: 8 J/cm2 Power: 0.1W Irradiation area: 0,5 cm2 6 applications every 48 hours after the day of implantation, 20 seconds of non-contact irradiation (01 point on the area surrounding the miniscrew) at a distance of 15,5 mm.
Experimenteel: LLLT + mediate force
Use of Low-level laser therapy and mediate orthodontic force application (150 gF 4 weeks after the day of the implantation).
  1. Immediate post-operative period (implantation day) Red emission (660 nm) Energy density: 4 J/cm2 Power: 0.1W Irradiation area: 0,5 cm2 One application, 10 seconds of non-contact irradiation (01 point at the area surrounding the miniscrew) at a distance of 15,5 mm.
  2. Mediate post-operative period (after implantation day) Infrared emission (808 nm) Energy density: 8 J/cm2 Power: 0.1W Irradiation area: 0,5 cm2 6 applications every 48 hours after the day of implantation, 20 seconds of non-contact irradiation (01 point on the area surrounding the miniscrew) at a distance of 15,5 mm.
Mediate force application protocol: orthodontic force application (150 gF) 4 weeks after the day of the implantation.
Geen tussenkomst: Immediate force application
Not mediate orthodontic force application (150 gF the day of the implantation), without use of Low-level laser therapy.
Experimenteel: 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.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change from baseline miniscrew implant stability at 1 and 3 months of force application.
Tijdsspanne: 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.
Tijdsspanne: 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.

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Hoofdonderzoeker: Guido A Marañón Vásquez, DDS, University of Sao Paulo

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 maart 2016

Primaire voltooiing (Werkelijk)

1 februari 2017

Studie voltooiing (Werkelijk)

1 augustus 2017

Studieregistratiedata

Eerst ingediend

23 augustus 2016

Eerst ingediend dat voldeed aan de QC-criteria

31 augustus 2016

Eerst geplaatst (Schatting)

7 september 2016

Updates van studierecords

Laatste update geplaatst (Werkelijk)

18 januari 2018

Laatste update ingediend die voldeed aan QC-criteria

17 januari 2018

Laatst geverifieerd

1 januari 2018

Meer informatie

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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