- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04384237
Er,Cr:YSGG Laser-aided Fiberotomy in the Prevention of the Lower Incisors Rotational Relapse (laser)
Effect of Er,Cr: YSGG Laser - Aided Circumferential Supracrestal Fiberotomy in the Prevention of the Lower Incisors Rotational Relapse
To establish the effect of erbium, chromium,yttrium,scandium,gallium and garnet (Er,Cr: YSGG) laser-aided circumferential supracrestal fiberotomy compared to a conventional circumferential supracrestal fiberotomy group, after leveling and alignment during the first month after arch wire removal on the prevention of rotational relapse in lower incisors.
Methods: Randomized clinical trial in 60 orthodontic patients with two to four lower incisors rotation between 30º-50º degrees before treatment.They are going to be assigned in two intervention groups, each group with 30 patients. One group are going to be treated with Er;Cr: YSGG laser -aided CSF and the other group with conventional circumferential supracrestal fiberotomy. After leveling and alignment each procedure will be performed and after one month healing the arch wire will be removed for a month and lower incisor relapse will be measured through cast models in a software. Periodontal parameters will be registered before and after procedures.The outcomes are going to be determined and compared between groups with corresponding statistical test and results will be analyzed
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
(Population, intervention, comparison, outcomes )PICO QUESTION Is there any difference in the amount of rotational relapse of the anterior lower teeth after leveling and alignment between Er;Cr:YSGG laser-aided circumferential supracrestal fiberotomy compared with conventional circumferential supracrestal fiberotomy after the removal of the arch wire one month once healed?
Population: Orthodontic patients with lower incisors rotation between 30º-50º degrees
Intervention:Er:Cr;YSGG Laser-aided CSF (Waterlase, Biolase, Irvine,California, USA) Comparison: Conventional CSF
Outcomes Primary Outcome: rotation relapse degree after one month removed teeth from the arch wire Secondary Outcome: probing depth and clinical crown height (gingival margin position)baseline, after leveling and alignment stage one month removed lower incisors from the arch wire.
AIMS
GENERAL AIM
To establish the effect of Er,Cr: YSGG laser -aided circumferential supracrestal fiberotomy compared to a conventional circumferential supracrestal fiberotomy group on the prevention of rotational relapse in lower incisors, during the first month after the teeth are removed from the arch.
SPECIFIC AIMS
- Determine the degree of rotation of the lower incisors in the two groups of the pretreatment study, at the end of the alignment and leveling stage and the month after performing the intervention.
- Determine the probing depth and the position of the gingival margin of the lower incisors in the two groups of the pretreatment study, at the end of the alignment and leveling stage and the month after performing the intervention.
- Determine the perception of pain in patients of the two study groups at baseline, 24, 48 and 72 hours.
- Compare rotational relapse, probing depth, gingival margin position in each study group during the follow-up time.
- Compare rotational relapse, probing depth and gingival margin position between study groups during follow-up time.
METHODS
OVERVIEW OF DESIGN Study design: Randomized clinical trial
Randomized clinical trial in 60 lower incisors with moderate initial rotation (30-50 degrees). The eligible patients are going to be randomly allocated into two groups, each group with 30 teeth.
One group is going to be treated with Er,Cr:YSGG laser - aided circumferential supracrestal fiberotomy and the other group with conventional circumferential supracrestal fiberotomy.
Blinding: it is not possible to blind patients and clinical staff, but the investigators are going to blind the operator who will perform the measurements and the data analysis (single-blinded)
The protocol for both procedures will be the same except for the intervention.
Alginate impressions and cast models at the beginning of the study will be taken and initial rotation of mandibular incisors will be measured based on a Xerox copy of the lower cast (Canon Xerox Machine, imageRUNNER (IR) 5050 Ota, Tokyo, Japan) while the occlusal table faced down on the screen, a Xerox copy of it will be made. The Xerox copies will be scanned (Canon CanoScan 9000F Mark II, Ota, Tokyo, Japan) and saved as a image file format JPEG (Joint Photographic Experts Group) files. The files will be imported to the software to drawn an imaginary arch passing through the outermost surface of the anterior and posterior teeth.
To measure the initial rotation, the JPEG images will be opened in a Digimizer image analysis software (Version 4.3 Orange, California)The angle between the incisor edge and the line tangent to the imaginary arch will be measured as initial rotation.
Measures of lower incisors will be taken by previously-calibrated operators as well as periodontal measurements at baseline, after leveling and alignment and one month after separating the teeth from the arch wire.
Pain measurement evaluations will be determined by the visual analogue scale (VAS) at baseline, 24,48 y 72 hrs.
DESIGN FOR SAMPLING
Study Population:
-Orthodontic patients from the orthodontic department clinics of the UniCieo
Sampling:
No probabilistic: convenience sample Consecutive sample of consenting patients
PLANS FOR RECRUITMENT
Patients of the Clinic University (UniCieo) that meet the selection criteria and accept to participate.
MEASUREMENTS
MAIN PREDICTOR VARIABLE
-Relapse lower incisors (Er;Cr YSGG laser-aided CSF)
POTENTIAL CONFOUNDING
Age
Sex
OUTCOME VARIABLES
Dental stone cast scanned Outcomes (T3-T4):
-Quantity of lower anterior teeth rotation relapse tendency measured 1 month after arch wire removed
Periodontal Outcomes:
Quantity of probing depth and gingival margin position (coronal height) measured 1 month after arch wire removed
Pain Outcomes:
Visual analogue scale (0-10) measures after clinical intervention
STATISTICAL ISSUES
APPROACH TO STATISTICAL ANALYSIS
The data analysis will be processed in the statistics program Statistical Package for the Social Sciences (SPSS) software (version 21, Chicago, IL).Evaluation of normality of data will be valued with the Kolmogorov-Smirnov test. One-way ANOVA will be used to determine any significant differences Significance level is going to be set at P< 0.05
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Sandra G Leal Pinilla, Ms.
- Phone Number: 317 383 3691
- Email: sg.leal@unicieo.edu.co
Study Contact Backup
- Name: Liliana Sanz Tobon, DDS
- Phone Number: 321 465 0456
- Email: sanztobon@hotmail.com
Study Locations
-
-
Bogotá D.c.,
-
Bogotá, Bogotá D.c.,, Colombia, 110011
- Orthodontic Clinic of Post-graduation Program UniCIEO
-
Contact:
- Sandra G Leal Pinilla, Ms.
- Phone Number: 317 383 3691
- Email: sg.leal@unicieo.edu.co
-
Contact:
- Liliana Sanz Tobon, DDS
- Phone Number: 321 465 0456
- Email: sanztobon@hotmail.com
-
Principal Investigator:
- Sandra G Leal Pinilla, Ms
-
Sub-Investigator:
- Liliana Sanz Tobon, DDS
-
Sub-Investigator:
- Yuri Martinez
-
Sub-Investigator:
- Cindy Bernal
-
Sub-Investigator:
- Daniela Quintero
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Non gingivitis or untreated caries
- lower teeth with 30º-50º rotation degree
- 2 mm keratinized tissue band
- at least 2 rotated mandibular teeth
Exclusion Criteria:
- Root canal treatment
- Marginal Recessions
- Interproximal bone loss in Rx
- Thin gingival biotype (periodontal probe translucency
- Reduced periodontium
- systemic diseases or medications that alters bone metabolism.
- Pregnancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: HEALTH_SERVICES_RESEARCH
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: SINGLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Er,Cr:YSGG laser-aided CSF
Experimental: Er, Cr: YSGG laser-aided Circumferential Supracrestal Fiberotomy in the lower arch, posterior leveling and alignment of the orthodontic treatment by inserting the laser tip at an angle of 10-15º to the radicular surface
|
After injection 2% lidocaine with 1:80.000
epinephrine concentration in labial and lingual vestibule the fiberotomy is carried out by inserting a 9 x 0.5 mm laser tip into the gingival sulcus with an angle of 10-15º to the radicular surface
|
ACTIVE_COMPARATOR: Conventional CSF
Fiberotomy comparator: this arm is going to receive a blade conventional Circumferential Supracrestal Fiberotomy in the lower arch, posterior leveling and alignment by inserting a surgical blade into the gingival sulcus at an angle like that in the laser-aided CSF.
|
After injection 2% lidocaine with 1:80.000
epinephrine concentration in labial and lingual vestibule the fiberotomy is carried out by inserting a surgical blade (#11)into the gingival sulcus at an angle of 10-15º to the radicular surface
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Quantity of anterior mandibular rotation relapse
Time Frame: one month after arch wire removal
|
Er,Cr.YSGG laser-aided fiberotomy and Conventional CSF.
Alginate impressions and cast models at the beginning of the study.Herb curve to measure the initial rotation grade.
Impressions and measurements after the leveling and alignment phase, fiberotomy procedure, retention for one healing month.
30 days later of the removal of the arch wire, alginate impressions and measures will be taken by previously-calibrated operators
|
one month after arch wire removal
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in probing depth
Time Frame: baseline and two months after fiberotomy
|
At the beginning of the study, two months after fiberotomy, measures will be taken by calibrated operators
|
baseline and two months after fiberotomy
|
Changes in clinical crown height
Time Frame: baseline and two months after fiberotomy
|
At the beginning of the study, two months after fiberotomy, measures will be taken by calibrated operators
|
baseline and two months after fiberotomy
|
Pain levels
Time Frame: after procedures, 24, 48 and 72 hours
|
Pain levels will be measure by the Visual Analog Scale (VAS), from 0 to 10-cm VAS, where the number 0 indicating no pain, a value less than 4 on the EVA means mild pain, between 4 and 6 moderate pain, greater than 6 very intense pain and the number 10 indicating the most severe pain into the scale, after 24, 48 and 72 hours CSF procedures
|
after procedures, 24, 48 and 72 hours
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ANTICIPATED)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- CIEO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Rotated Teeth
-
Cairo UniversityUnknownSingle Posterior Crowns | Badly Decayed Teeth, Teeth Restored With Large Filling Restorations or Endodontically Treated Teeth | Malformed Teeth, Malposed Teeth (Tilted, Over-erupted, Rotated, Etc.) or Spacing Between Posterior Teeth
-
Cairo UniversityNot yet recruitingCementation Teeth | Badly Broken Down Vital Teeth
-
Cairo UniversityRecruitingEndodontically Treated Teeth | Posterior Teeth | Worn Posterior Teeth | Crowned Posterior TeethEgypt
-
Cairo UniversityRecruitingEndodontically Treated Teeth | Badly Decayed Teeth | Single Anterior Crowns | Spacing Between Anterior Teeth | Malposed Teeth(Tilted,Overerupted,Totated,Etc.)Egypt
-
Cairo UniversityUnknownBadly Decayed Teeth andTeeth Restored With Large Filling Restorations and Endodontically Treated Teeth and Malformed Teeth and Malposed Teeth
-
Hadassah Medical OrganizationCompletedPulpotomies Primary Teeth | Effectiveness of MedCem MTA® in Pulpotomies Primary TeethIsrael
-
Suleyman Demirel UniversityCompleted
-
University of ZagrebUnknown
-
Ege UniversityCompleted
-
Cairo UniversityNot yet recruitingEndodontically Treated Teeth | Decayed Teeth | Malposed Teeth | Teeth Restored With Large Filling Restorations | Single Anterior Crowns | Single Premolars Crowns
Clinical Trials on Er,Cr:YSGG laser-aided CSF
-
Cairo UniversityRecruiting
-
Chen Laser InstituteCompletedTooth PainUnited States
-
University of ZagrebCompleted
-
Korea University Anam HospitalCompleted
-
Columbia UniversityBiolase IncActive, not recruitingPeri-ImplantitisUnited States
-
Near East University, TurkeyCompletedStomatitis, Aphthous
-
Yuzuncu Yıl UniversityCompletedDental AnxietyTurkey
-
alaaCompletedGeneralized Chronic Periodontitis
-
Yuzuncu Yıl UniversityCompletedPostoperative Pain | Wound Heal | Soft Tissue BleedingTurkey
-
Yuzuncu Yıl UniversityCompletedAggressive Periodontitis