- Solid Tumors
- Pipeline Molecules
- Alliance Partners
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Currently, you can access the following clinical trials being conducted worldwide:
Clinicaltrials.gov identifier NCT03939988
Recruitment Status Not yet recruiting
First Posted May 7, 2019
Last update posted May 7, 2019
The greatest dropout rate of orthodontic treatments is pain, from the installation of the elastomeric separators, to the exchange of wires and accessories. This process that presents both physiological and psychological responses negatively affects patients' quality of life due to the difficulty of chewing and biting. The sample will be comprised of individuals who will receive elastomeric spacers on the mesial and distal surfaces of the upper first molars, randomized into two groups, the group being irradiated with the low intensity laser, called the experimental group, and the placebo group, simulated laser. In the installation of the tabs, the experimental group will receive a single application in the mesial and distal cervical portion and in the apical third of the molars. The energy delivered at each point will be 2J, per vestibular and lingual, 6 points, totaling 12 J of energy per tooth. To evaluate the perception of pain we will use the Visual Analogue Scale (EVA) after 1h, for all groups. The gingival pockets cytokines will be collected with an absorbent paper cone for 30 seconds on both groups and compared between them by ELISA. It is expected that patients in the irradiated group will have lower pain perception and less cytokines than in the placebo group.
|Active Comparator: Experimental group
In this study, immediately after the installation of the separators, the subjects of the experimental group will be submitted to photobiomodulation. The laser will be infrared, in continuous mode with wavelength of 808 nm. The tip will be positioned perpendicularly in the mucosa, without exerting pressure. At each point 2J of energy will be irradiated for 20 seconds, totaling 12J per tooth, 6J on the buccal side and 6J of the lingual side of the teeth.
Immediately after the installation of the separators, the subjects will be submitted to photobiomodulation. The laser will be infrared, in continuous mode with wavelength of 808 nm. The tip will be positioned perpendicularly in the mucosa, without exerting pressure. At each point 2J of energy will be irradiated for 20 seconds, totaling 12J per tooth, 6J on the buccal side and 6J of the lingual side of the teeth.
|Placebo Comparator: Placebo group
In the placebo group, the same procedures will be made, but the laser will be switched off.
Radiation: Placebo photobiomodulation
In the placebo group, the same procedures will be made, but the laser will be turned off.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, , Learn About Clinical Studies.-->
- Clinical conditions of normality;
- Healthy periodontium;
- Healthy molars;
- Presence of interproximal contacts between the second molar and premolar;
- Permanent dentition phase;
- Who have not been taking anti-inflammatory drugs or analgesics for 4 days.
- Systemic diseases that routinely use medications;
- Patients with periodontal disease;
- Patients who remove the tabs or who do not respond to the questionnaire;
- Papers contaminated with blood or saliva will be excluded for cytokine analysis.
University of Nove de Julho