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CompletedNCT03388736Updated Jul 5, 2019

Anxiolytic Effect of Lavender Oil on Orthognathic Surgery Patients

An interventional study of Supplementary Medicine in Anxiety and Osteotomy, sponsored by Ankara University. Completed at 1 site in Turkey. Open to participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2019-07-05.

Primary conditionAnxiety Disorders(the registry's first term)UnverifiedIs this wrong?The registry often attaches Anxiety Disorders to studies about something else, and this study's title and listed conditions do not name it. No better condition is named, so the registry's term is kept.

Sponsored by Ankara University · Not applicable, Interventional, and Supportive care

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Phase
Not applicable
Study type
Interventional
Enrollment
90
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
All
01

Study summary

The aim of this study is to determine the possible reducing effects of different concentrations of lavender oil on preoperative anxiety in orthognathic surgery patients who have high anxiety during preoperative wait.

Read the detailed description

Preoperative anxiety is a common problem. It has long been known that surgical operations, unconsciousness, the risks of the operation itself, and the pain to be encountered in the future can cause a considerable amount of anxiety. Anxiety is associated with an uncertain psychological distress, and may vary to minor disturbances to extreme stress. Depending on the severity of the anxiety, preoperative anxiety can affect how well the patient understands the information about the surgery. In addition, stress factors such as interleukins released in the body in anxiety may negatively affect both surgical and post-surgical periods. We want to help patients improve their satisfaction by reducing their anxiety levels and ensure they have a better surgical experience. In addition, anxiety can also prevent active participation in the treatment of the patient during postoperative recovery. Sedatives and other anxiolytic agents may be prescribed to prevent this condition. However, these methods can have side effects. The physical and psychological effects of essential oils and traditional medicine practices as aromatherapy has been used for a long time and has potency to reduce using sedatives. Lavender oil is a fragrance that many of us have experienced in growing up at home and is also popular today. The lavender plant belongs to the Labitae family and has been used for centuries in dried or essential oil form. Lavender obtained from flower heads and leaves with vapor distillation. Traditionally, this oil is believed to be beneficial for antibacterial, antifungal, muscle relaxant, sedative, antidepressant effects and for burn and insect bites. Nowadays it is used for aromatherapy and antibacterial and pleasant fragrance material which is used in soaps and cosmetic products. This oil has also been specifically investigated and is an essential oil scientifically shown to reduce patient anxiety before various surgeries. However, the anxiolytic effect of this essential oil has not been investigated for orthognatic surgery patients and there is very few studies investigating different concentrations.

The aim of our study is to investigate whether the different concentration of lavender oil diffused in the preoperative environment of orthognathic surgery patients reduces preoperative anxiety.

02

Conditions studied

  • Anxiety
  • Osteotomy

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Keywords

  • preoperative
  • anxiety
  • orthognathic surgery
  • lavender oil
03

In context

Anxiety Disorders Unverified

7,207 studies on the registry are indexed under Anxiety Disorders; 1,682 are open to participants now.

This study's enrollment of 90 is above the median of 80 across 6,062 interventional studies indexed under Anxiety Disorders.

Browse Anxiety Disorders studies →

Lead sponsor

Ankara University is the lead sponsor of 320 studies on the registry; 64 are open to participants now.

Compared within Anxiety Disorders, the registry's first condition term, which may not be this study's main condition. Counted across the registry records on this site, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • To undergo orthognathic surgery
  • To be over 18 years old.
  • Volunteering to fill pre-operative anxiety tests

Exclusion criteria

Exclusion Criteria:

  • to lavender and its products.
  • Being on any medication.
  • Being a psychiatric or psychological problem and being under treatment.
  • Current upper airway infection or asthma story.
  • Not want to be involved in the work.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
90 participants (actual)

Study arms

  • No intervention
    No lavender

    No mist will be diffused into the environment.

  • Active comparator
    0,1 lavender

    0,1 ml lavender oil diluted in 120 ml water will be diffused into the environment with (17-33 ml mist output per hour).

    Behavioral: Supplementary Medicine

  • Active comparator
    0,3 lavender

    0,3 ml lavender oil diluted in 120 ml water will be diffused into the environment with (17-33 ml mist output per hour).

    Behavioral: Supplementary Medicine

Interventions

  • BehavioralSupplementary Medicine

    A diffuser containing 120 ml water and 0.1 or 0.3 ml lavender oil (according to arm) will be set into the patients' rooms to mist at least 30 minutes before the patients arrive.

06

What researchers measure

Primary outcomes

  1. Reduction of preoperative anxiety

    State Trait Anxiety Inventory (STAI) questionnaire will be applied. Turkish STAI consists of 2 questionnaires. The first survey measures state anxiety, while the second survey measures continuing anxiety.The State and Trait Anxiety Inventory-STAI (State and Trait Anxiety Scale) is a self-assessing and self-reporting anxiety questionnaire. The reliability and validity of the questionnaire are proven by numerous studies and the Turkish version is a reliable and valid questionnaire.

    Time frame: STAI will be applied at administration and after 1 hour waiting time.

07

Study locations

1 site
  • Ankara University Faculty of Dentistry
    Ankara, 06940, Turkey
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2017 to primary completion in Mar 2019, 16 months.

Of 3,841 non-industry interventional studies with no phase under Anxiety Disorders, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 28. This study's 16 months is above that.

Counting every sponsor, half of 3,943 studies reached it within 12 months; a quarter within 5 and three quarters within 28.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 8, 2017
First posted
Jan 3, 2018
StartActual
Nov 1, 2017
Primary completionActual
Mar 1, 2019
CompletionActual
Mar 1, 2019
Last update
Jul 5, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 5, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03388736
Lead sponsor
Ankara University
Responsible party
Poyzan Bozkurt (Specialist, Ankara University) — Principal investigator
First posted
Jan 3, 2018
Start date
Nov 1, 2017
Primary completion
Mar 1, 2019
Completion
Mar 1, 2019
Last update
Jul 5, 2019

Study contacts

Poyzan Bozkurt, DDS PhD
study director · Ankara University Faculty of Dentistry

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

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