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IRCT20120215009014N359 IRCT 2020-06-08 Hamedan University of Medical Sciences Comparison of effect of diode laser, astringent paste, and subgingival cord on gingival retraction during impression using a 3D intraoral scanner Comparison of effect of diode laser, astringent paste, and subgingival cord on gingival retraction during impression using a 3D intraoral scanner: a randomized clinical trial 2019-12-22 anticipated 45 Complete https://irct.ir/trial/48480 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Random assignment of the patients to the intervention and control groups through the drawing of lots. To do this, we prepare two sheets and write "intervention 1" on one sheet and "intervention 2" on the second sheet and “intervention 3” on the third one. Then, by referring each patient, one of the sheets will be randomly taken and the patient will be assigned to the intervention groups. N/A Dental caries. Intervention 1: Intervention group 1: Preparing and cutting teeth and applying temporary resin crown with hidden edges using a 980 nm diode laser with a tip of half a mm with low power of 0.7 to 2 W. Intervention 2: Intervention Group 2: Preparing and cutting teeth and applying temporary resin crown with hidden edges using gum threads inside the gingival groove. Intervention 3: Intervention Group 3:Preparing and cutting teeth and applying temporary resin crown with hidden edges using an astringent paste to cover the gingival groove. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is It depends on the situations and the results of the study as well as the approval of the financial supporting organization.
public Seyed Farzad Kohnepoushi
School of Dentistry, Hamadan University of Medical Sciences, Shahid Fahmideh Ave.
Hamadan Iran (Islamic Republic of) 6517838695 +98 81 3838 0572 m_kohnepoushi@yahoo.com Hamedan University of Medical Sciences scientific Dr. Fariborz Vafaee
School of Dentistry, Hamadan University of Medical Sciences, Shahid Fahmideh Ave.
Hamadan Iran (Islamic Republic of) 6517838695 +98 81 3838 0572 fvafaee@umsah.ac.ir Hamedan University of Medical Sciences Iran (Islamic Republic of) Age of 18 to 65 years, Tooth decay, The need for dental veneers, 18 years 65 years Both Inadequate oral hygiene, Periodontal disease K02 Dental caries Treatment - Other Treatment - Other Treatment - Other Intervention group 1: Preparing and cutting teeth and applying temporary resin crown with hidden edges using a 980 nm diode laser with a tip of half a mm with low power of 0.7 to 2 W Intervention Group 2: Preparing and cutting teeth and applying temporary resin crown with hidden edges using gum threads inside the gingival groove Intervention Group 3:Preparing and cutting teeth and applying temporary resin crown with hidden edges using an astringent paste to cover the gingival groove Gingival retraction. Timepoint: Before the intervention and immediately after that. Method of measurement: Using a 3D intraoral scanner. Hamedan University of Medical Sciences Approved 2019-12-07 Ethics Committee of Hamadan University of Medical Sciences Vice-chancellor for Research and Technology, Hamadan University of Medical Sciences, Shahid Fahmideh Ave Hamadan Hamadan Iran (Islamic Republic of)