- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04548674
Analysis of the Influence of Desensitizing Treatments on the Pulp Inflammatory Response in Bleached Teeth
September 8, 2020 updated by: Cecy Martins Silva, Universidade Federal do Para
Effect of Different Desensitizing Protocols on the Pulp Inflammatory Response in Bleached Teeth: A Randomized Clinical Trial.
This randomized, controlled, blinded clinical trial evaluated the effectiveness of different desensitizing protocols in preventing pulp inflammation after bleaching treatment with 35% hydrogen peroxide (PH) (Whiteness PH 35%).
Study Overview
Status
Completed
Conditions
Detailed Description
Thirty healthy third human molars extracted by orthodontic indication were randomized and allocated into five groups (n = 6): CN (negative control): without intervention; CP (Positive control): PH; PMB: PH + photobiomodulation with low power laser; CPP: PH + casein phosphopeptide phosphopeptide amorphous calcium phosphate (CPP-ACPF); NANO: PH + nanohydroxyapatite.
The office whitening was performed in two sessions with a single application of 45 min and an interval of 48 hours between them.
Pulp tissues were removed for immunohistochemical analysis.
Immunostaining was performed for Caspase 3 using an Axio Scope.A1 microscope.
Study Type
Interventional
Enrollment (Actual)
18
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
Pará
-
Belém, Pará, Brazil, 66075-110
- Universidade Federal do Pará
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
20 years to 26 years (ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion criteria:
- Lower third molars class I position A
- Maxillary third molars horizontal position A
- Absence of caries and enamel fracture
- Absence of periodontal disease
- Extraction of third molars for orthodontic reasons
- No allergy to the anesthetic and positive pulp sensitivity test
Exclusion criteria:
- Calcification in the middle third of the root
- Drug users or smokers
- Patients who have already done whitening
- Root apex with incomplete formation and patients with systemic problems that would make surgery impossible
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: SEQUENTIAL
- Masking: SINGLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
PLACEBO_COMPARATOR: Positive Control Group
Whiteness HP 35%
|
Single application of 45 minutes on the buccal surfaces of third molars, with an average thickness of 1 mm
|
EXPERIMENTAL: Laser Group
Whiteness HP 35% + Laser
|
Single application of 45 minutes on the buccal surfaces of third molars, with an average thickness of 1 mm
A dose of LASER (60 J / cm2, for 16 seconds) was applied at two points, one point in the cervical region and another in the center of the buccal surface of the third molars, using visible infrared LASER therapy (Photon III / DMC, São Carlos, SP, Brazil), with a wavelength of 808 nm, and AsGaAl, as an active medium.
|
EXPERIMENTAL: CPP Group
Whiteness HP 35% + CPP
|
Single application of 45 minutes on the buccal surfaces of third molars, with an average thickness of 1 mm
Topical application of casein phosphopeptide amorphous calcium phosphate fluoride CPP-ACPF (My Paste Plus, Recaldent, GC, USA) with the aid of a microbrush (KG Sorensen, SP, Brazil) in a passive way for 5 minutes.
|
EXPERIMENTAL: Nano Group
Whiteness HP 35% + NANO
|
Single application of 45 minutes on the buccal surfaces of third molars, with an average thickness of 1 mm
A topical application of nanohydroxyapatite (Nano P FGM, SC, Brazil) was performed with the aid of a microbrush (KG Sorensen, SP, Brazil) in a passive way for 5 minutes after teeth whitening.
|
NO_INTERVENTION: Negative Control
Without intervention
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Pulp inflammation
Time Frame: 3 days After extraction of third molars
|
Evaluation of pulp inflammation through immunohistochemistry of the third molar whitening or not
|
3 days After extraction of third molars
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
August 20, 2018
Primary Completion (ACTUAL)
March 15, 2019
Study Completion (ACTUAL)
June 30, 2019
Study Registration Dates
First Submitted
September 1, 2020
First Submitted That Met QC Criteria
September 8, 2020
First Posted (ACTUAL)
September 14, 2020
Study Record Updates
Last Update Posted (ACTUAL)
September 14, 2020
Last Update Submitted That Met QC Criteria
September 8, 2020
Last Verified
September 1, 2020
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- UFPara-008
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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.
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