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IRCT20110212005804N6 IRCT 2019-12-21 Islamic Azad University effect of laser on pulp histology comparison of the effect of the use of the two types of laser Nd:YAG(1064nm) and Er:YAG(2940nm) on histologic changes of the premolars human pulp during removal of ceramic brackets (clinical trial) 2019-02-01 anticipated 28 Complete https://irct.ir/trial/37420 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The samples will be randomly allocated to double blocks using random-block technique. Random allocation will be done using Excel software by a blinded person who is not among the investigators and the intervention details will be kept in sealed and coded pockets. As a result patient allocation will be done based on age and gender. The pockets have 28 numbers for the first intervention groups and 28 numbers for the second intervention groups, Blinding description: The evaluation process is done by someone other than the practitioner who does the operation. He does not have access to patient's information, either. Moreover, histological evaluation is done in the absence of patient and the practitioner. N/A pulpitis. Intervention 1: First intervention group: Er: YAG laser with 2940 nm wavelength (Fotona, Slovenia) will be used for bracket debonding. The parameters are based on device pre-sets as follows: 1.2 W, 600 MJ, 2 Hz, lung pulse without air spray. The irradiation will last for 3 seconds and the beam is parallel to tooth surface and in the tooth-bracket interface. After radiation, the bracket is removed with a plugger. Intervention 2: Second invertion group: Nd: YAG laser with 1064 nm wavelength (Fotona, Slovenia) will be used for bracket debonding. The parameters are based on device pre-sets as follows: pulse length 0.2 millisecond and energy 3 watts for 3 seconds. The irradiation will last for 3 seconds and the beam is parallel to tooth surface and in the tooth-bracket interface. After radiation, the bracket is removed with a plugger. Yes - There is a plan to make this available What will be shared: Only part of the data, such as the key outcome information or the like, can share. When: Start of access period 6 months after printing results To whom: Researchers and college students who are involved in the treatment of patients in common can use data Conditions: All the clinicians who use laser to debond ceramic brackets can access the documents using the following address. dr.Mahta Fazlyab dr.mfazlyab@yahoo.com Faculty of dentistry of Islamic Azad university +982122564571 No. 9,Faculty of dentistry of Islamic Azad university,9th Neyestan Ave,Pasdaran Ave Where to obtain: Applicants can contact the person responsible for the article to receive the information. dr.Mahta Fazlyab dr.mfazlyab@yahoo.com Faculty of dentistry of Islamic Azad university +982122564571 No. 9,Faculty of dentistry of Islamic Azad university,9th Neyestan Ave,Pasdaran Ave How to obtain: Demand by email to the person responsible for the article dr.Mahta Fazlyab dr.mfazlyab@yahoo.com Comments:
public Dr Mahta Fazlyab
No. 9, 9th Neyestan Ave, Pasdaran Ave
Tehran Iran (Islamic Republic of) 1946853314 +98 21 2256 4571 dr.mfazlyab@gmail.com Islamic Azad University scientific Dr Mahta Fazlyab
No. 9,9th Neyestan Ave, Pasdaran Ave
Tehran Iran (Islamic Republic of) 1946853314 +98 21 2256 4571 dr.mfazlyab@gmail.com Islamic Azad University Iran (Islamic Republic of) Patients with at least two premolar teeth in a single jaw that need to be extracted for orthodontic treatment. 12 years 30 years Both Patients with systemic problems that modify the treatment procedure Patients taking any systemic medicine Teeth with cracks, existing restorations, caries and hypocalcification. Any radicular lesion in clinical or radiographic examination The tooth sensitivity to cold, heat, or bite pressure on the teeth K04.0 Pulpitis Treatment - Devices Treatment - Devices First intervention group: Er: YAG laser with 2940 nm wavelength (Fotona, Slovenia) will be used for bracket debonding. The parameters are based on device pre-sets as follows: 1.2 W, 600 MJ, 2 Hz, lung pulse without air spray. The irradiation will last for 3 seconds and the beam is parallel to tooth surface and in the tooth-bracket interface. After radiation, the bracket is removed with a plugger. Second invertion group: Nd: YAG laser with 1064 nm wavelength (Fotona, Slovenia) will be used for bracket debonding. The parameters are based on device pre-sets as follows: pulse length 0.2 millisecond and energy 3 watts for 3 seconds. The irradiation will last for 3 seconds and the beam is parallel to tooth surface and in the tooth-bracket interface. After radiation, the bracket is removed with a plugger. Histologic changes. Timepoint: Immediately after laser irradiation and bracket debonding the teeth are extracted and sent for preparation and histological evaluation. Method of measurement: َThe specimens will be evaluated according to ISO7405 standard. Islamic Azad University Approved 2018-12-31 Ethics Committee, Faculty of Dentistry, Islamic Azad University No. 9,Faculty of Dentistry Islamic Azad University,9th neyestan Ave,Pasdaran Ave Tehran Tehran Iran (Islamic Republic of)