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IRCT20180630040294N1 IRCT 2019-10-26 Mashhad University of Medical Sciences Evaluation and comparison of the effects of bleaching gel containing 1% sodium hexametaphosphate on color stability and dental sensitivity during and after bleaching: a randomized, triangular blinded clinical trial study. Evaluation and comparison of the effects of bleaching gel containing 1% sodium hexametaphosphate on color stability and dental sensitivity during and after bleaching: a randomized, triangular blinded clinical trial study. 2018-07-23 anticipated 30 Complete https://irct.ir/trial/32297 interventional Randomization: Randomized, Blinding: Triple blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Individual simple randomization with sealed envelope, Blinding description: The study is performed on the same subjects, but in different parts of the body, they have two or more interventions, so that by random selection of an envelope, which half-jaw is the control and the other half is intervention. The data analyst is also a third party. 2-3 Bad teeth color. Intervention 1: Intervention group: Before initiation of study, a retractor will be used to retract the lips and cheeks. Then a light-polymerized opaldam (SDI, Australia) will be used to protect the gums and soft tissues. intervention group: the same bleaching gel as the control group with 1% sodium hexametaphosphate will be utilized for 30 minutes on other half of maxilla arch. After completion of the bleaching period and removing the gel and resin dam a complete rinsing will be done. Intervention 2: Control group: control group: the Bleaching gel containing 37.5% hydrogen peroxide Polaoffice+ (SDI, Australia) will be applied for 30 minutes on randomly selected half of maxilla arch. Yes - There is a plan to make this available What will be shared: The results of this study related to the main outcome at the end of the study released in a published article. When: About one year To whom: Anybody who needs the information. Conditions: There was no specific conditions. Where to obtain: By sending an email to Dr Hamideh Sadat Mohammadipour How to obtain: Immediately after receiving the email, it will response. Comments:
public Hamideh Sadat Mohammadipour
Mashhad University of Medical Science, Azadi square
Mashhad Iran (Islamic Republic of) 9177948959 +98 51 3882 9501 mohammadipourh@mums.ac.ir Mashhad University of Medical Sciences scientific Hamideh Sadat Mohammadipour
Mashhad University of Medical Science, Azadi square
Mashhad Iran (Islamic Republic of) 91735-984 +98 51 3882 9501 mohammadipourh@mums.ac.ir Mashhad University of Medical Sciences Iran (Islamic Republic of) Patients need to be treated for bleaching for which they are given this treatment so that the teeth that are needed to bleach for them are free of decay or repairs. Patients in favorable general and oral health conditions. Patients without dental sensitivity by touch and thermal stimuli. 18 years 40 years Both Patients with a history of disease or long-term use of the drug. Treatment - Drugs Treatment - Drugs Intervention group: Before initiation of study, a retractor will be used to retract the lips and cheeks. Then a light-polymerized opaldam (SDI, Australia) will be used to protect the gums and soft tissues. intervention group: the same bleaching gel as the control group with 1% sodium hexametaphosphate will be utilized for 30 minutes on other half of maxilla arch. After completion of the bleaching period and removing the gel and resin dam a complete rinsing will be done. Control group: control group: the Bleaching gel containing 37.5% hydrogen peroxide Polaoffice+ (SDI, Australia) will be applied for 30 minutes on randomly selected half of maxilla arch. Tooth color by spectrophotometer and tooth sensitivity by VAS system. Timepoint: Before and after treatment, immediately after treatment and 24 hours after treatment, one week after treatment, one month after treatment and 3 months after treatment. Method of measurement: Tooth color by spectrophotometer and tooth sensitivity by VAS system. Mashhad University of Medical Sciences Approved 2018-11-21 Ethics committee of Mashhad University of Medical Science Mashhad University of Medical Science, Azadi square Mashhad Razavi Khorasan Iran (Islamic Republic of)