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IRCT20110109005570N12 IRCT 2021-08-23 Esfahan University of Medical Sciences Evaluation of the effect of laser on repair and pain caused by surgical crown lengtheningn Evaluation of the effect of Diode Laser of 808 nm and 660 nm in tissue repair and pain due to surgical crown lengthening 2021-07-06 anticipated 20 Complete https://irct.ir/trial/56183 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Clinical examination perform to select individuals with at least 2 teeth with the need for crown lengthening surgery in different quadrants and not in teeth adjacent to each other. Each half of the jaw is as controls of the other half. The selection of intervention and control half jaws will be randomly using a closed envelope. In such a way that on two cards of the same shape "left half jaw intervention" and the other two cards are written "right half-jaw intervention" and are placed inside four envelopes of the same shape. For each patient, one envelope is opened, intervention half jaw and consequently the control half jaw is defined. The card and envelope are returned to the envelope set for the next patient, Blinding description: The patient, outcome assessor and data analyzer did not know about the assignment of the control and case groups. N/A surgical crown length. After surgical crown lengthening, in case group diode laser with a wavelength of 660 nm, 40 mW power, continuously, 30 seconds and 808nm wavelength, 200mw power, continuously, 25 second laser irradiation is performed on soft tissue after suturing on the outer surface of the flap on the day of surgery and 3 days later. The control group received a placebo laser on the day of surgery and 3 days later. Yes - There is a plan to make this available What will be shared: healing data on the third and seventh day and patients' pain When: Whenever necessary To whom: Available to all researchers Conditions: It can be a guide for researchers with similar projects Where to obtain: Department of Periodontology, School of Dentistry, University of Isfahan How to obtain: A request message will be sent as soon as it is received Comments:
public Parichehr Behfarnia
Hezar Jarib,St.
Isfahan Iran (Islamic Republic of) 8174673461 +98 31 3792 5570 dr.pbehfarnia@gmail.com Esfahan University of Medical Sciences scientific Parichehr Behfarnia
HezarJarib St.
Isfahan Iran (Islamic Republic of) 8174673461 +98 31 3792 5570 dr.pbehfarnia@gmail.com Esfahan University of Medical Sciences Iran (Islamic Republic of) Systemically healthy patients From 25 years to 60 years Patients who have at least two teeth with the need for surgical crown lengthening in different quadrants of the mouth and not adjacent to each other 25 years 60 years Both Patients with a history of periodontal surgery in the past six months Uncontrolled systemic disease Long-term treatment with antibiotics or steroids poor hygiene low cooperation smoking habit General contraindications for laser therapy Other After surgical crown lengthening, in case group diode laser with a wavelength of 660 nm, 40 mW power, continuously, 30 seconds and 808nm wavelength, 200mw power, continuously, 25 second laser irradiation is performed on soft tissue after suturing on the outer surface of the flap on the day of surgery and 3 days later. The control group received a placebo laser on the day of surgery and 3 days later Clinical signs of re-epithelialization. Timepoint: third and seventh days after surgery. Method of measurement: Observational, 0: there is a distance between the gingival margins, 3: the gingival margins are adjacent, 6: the gingival margin has an overlap. Clinical signs of inflammation. Timepoint: third and seventh days after surgery. Method of measurement: Observational, 0: redness above 50% of the length of the incision or swelling is visible, 1: redness is seen below 50% 2: redness is not seen. Clinical signs of haemostasis. Timepoint: third and seventh days after surgery. Method of measurement: Observational, 0. : Bleeding is seen, 1: Fibrin is seen, 2: There is no fibrin. Pain at the surgical site. Timepoint: Surgery day, first day, third day. Seventh day after surgery. Method of measurement: visual analog scale. Esfahan University of Medical Sciences Approved 2021-06-09 Ethics committee of Isfahan University of Medical Sciences Hezar Jarib St Isfahan Isfehan Iran (Islamic Republic of)