<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE trials [
<!ELEMENT trials (trial+)>

<!ELEMENT trial (main,contacts,countries,criteria,health_condition_code,health_condition_keyword,intervention_code,
          intervention_keyword,primary_outcome,secondary_outcome,secondary_sponsor,secondary_ids,source_support,ethics_reviews)>

<!ELEMENT main (trial_id,utrn?,reg_name,date_registration,primary_sponsor,public_title,acronym?,scientific_title,scientific_acronym?,
          date_enrolment,type_enrolment,target_size,recruitment_status,url?,study_type,study_design,phase,hc_freetext?,i_freetext?,results_actual_enrolment,results_date_completed,results_url_link,results_summary,           results_date_posted,results_date_first_publication,results_baseline_char,results_participant_flow,results_adverse_events,results_outcome_measures,results_url_protocol,results_IPD_plan, results_IPD_description)>
<!ELEMENT trial_id (#PCDATA)>
<!ELEMENT utrn (#PCDATA)>
<!ELEMENT reg_name (#PCDATA)>
<!ELEMENT date_registration (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT primary_sponsor (#PCDATA)>
<!ELEMENT public_title (#PCDATA)>
<!ELEMENT acronym (#PCDATA)>
<!ELEMENT scientific_title (#PCDATA)>
<!ELEMENT scientific_acronym (#PCDATA)>
<!ELEMENT date_enrolment (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT type_enrolment (#PCDATA)>
<!ELEMENT target_size (#PCDATA)>
<!ELEMENT recruitment_status (#PCDATA)><!-- Pending,Recruiting,Suspended,Complete,Other -->
<!ELEMENT url (#PCDATA)>
<!ELEMENT study_type (#PCDATA)><!-- interventional,observational -->
<!ELEMENT study_design (#PCDATA)>
<!ELEMENT phase (#PCDATA)>
<!ELEMENT hc_freetext (#PCDATA)>
<!ELEMENT i_freetext (#PCDATA)>
<!ELEMENT results_actual_enrolment (#PCDATA)>
<!ELEMENT results_date_completed (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_url_link (#PCDATA)>
<!ELEMENT results_summary (#PCDATA)>
<!ELEMENT results_date_posted (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_date_first_publication (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT results_baseline_char (#PCDATA)>
<!ELEMENT results_participant_flow (#PCDATA)>
<!ELEMENT results_adverse_events (#PCDATA)>
<!ELEMENT results_outcome_measures (#PCDATA)>
<!ELEMENT results_url_protocol (#PCDATA)>
<!ELEMENT results_IPD_plan (#PCDATA)>
<!ELEMENT results_IPD_description (#PCDATA)>


<!ELEMENT contacts (contact+)>
<!ELEMENT contact (type,firstname,middlename,lastname,address,city,country1,zip,telephone,email,affiliation)>
<!ELEMENT type (#PCDATA)><!-- Public,Scientific -->
<!ELEMENT firstname (#PCDATA)>
<!ELEMENT middlename (#PCDATA)>
<!ELEMENT lastname (#PCDATA)>
<!ELEMENT address (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT country1 (#PCDATA)>
<!ELEMENT zip (#PCDATA)>
<!ELEMENT telephone (#PCDATA)>
<!ELEMENT email (#PCDATA)>
<!ELEMENT affiliation (#PCDATA)>

<!ELEMENT countries (country2+)>
<!ELEMENT country2 (#PCDATA)>

<!ELEMENT criteria (inclusion_criteria,agemin,agemax,gender,exclusion_criteria)>
<!ELEMENT inclusion_criteria (#PCDATA)>
<!ELEMENT agemin (#PCDATA)>
<!ELEMENT agemax (#PCDATA)>
<!ELEMENT gender (#PCDATA)>
<!ELEMENT exclusion_criteria (#PCDATA)>

<!ELEMENT health_condition_code (hc_code+)>
<!ELEMENT hc_code (#PCDATA)>

<!ELEMENT health_condition_keyword (hc_keyword+)>
<!ELEMENT hc_keyword (#PCDATA)>

<!ELEMENT intervention_code (i_code+)>
<!ELEMENT i_code (#PCDATA)>

<!ELEMENT intervention_keyword (i_keyword+)>
<!ELEMENT i_keyword (#PCDATA)>

<!ELEMENT primary_outcome (prim_outcome+)>
<!ELEMENT prim_outcome (#PCDATA)>

<!ELEMENT secondary_outcome (sec_outcome+)>
<!ELEMENT sec_outcome (#PCDATA)>

<!ELEMENT secondary_sponsor (sponsor_name+)>
<!ELEMENT sponsor_name (#PCDATA)>

<!ELEMENT secondary_ids (secondary_id+)>
<!ELEMENT secondary_id (sec_id,issuing_authority)>
<!ELEMENT sec_id (#PCDATA)>
<!ELEMENT issuing_authority (#PCDATA)>

<!ELEMENT source_support (source_name+)>
<!ELEMENT source_name (#PCDATA)>

<!ELEMENT ethics_reviews (ethics_review+)>
<!ELEMENT ethics_review (status,approval_date,contact_name,contact_address,contact_phone,contact_email)>
<!ELEMENT status (#PCDATA)><!-- Not approved,Approved,NA -->
<!ELEMENT approval_date (#PCDATA)><!-- dd/mm/yyyy -->
<!ELEMENT contact_name (#PCDATA)>
<!ELEMENT contact_address (#PCDATA)>
<!ELEMENT contact_phone (#PCDATA)>
<!ELEMENT contact_email (#PCDATA)>
]>
<trials>
  <trial>
    <main>
      <trial_id>IRCT20221212056786N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2023-07-29</date_registration>
      <primary_sponsor>Yazd University of Medical Sciences</primary_sponsor>
      <public_title>The effect of vitamin C on the repair of extracted tooth socket</public_title>
      <acronym></acronym>
      <scientific_title>Investigating the effect of vitamin C on the repair of extracted tooth socket</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2023-08-11</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>54</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/67391</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: First, using the random allocation version 1 software under Windows, we generate a random sequence using a simple random allocation method. The result of the software is in the form of a software that specifies the numbers 1 to 54 along with the letters A, B and C, and the first qualified person will be assigned number 1, and the next people will get numbers 2 to 54. And the researcher places each qualified person in the specified group based on the random allocation table. In order to blind the random allocation, we ask the help of a third person who does not know about the interventions and the table is provided to him. When the eligible person comes, the intervention group that is with A, B and C groups will be asked by phone or SMS, and the person will be placed in the desired group, Blinding description: For the purpose of blinding, the placebo is made in the form of round tablets with a yellow coating similar to vitamin C tablets of Amin Pharmaceutical Company and poured into similar glass containers, and each batch is coded. They don't know about received and done coding.</study_design>
      <phase>3</phase>
      <hc_freetext>The repair of extracted tooth socket.</hc_freetext>
      <i_freetext>Intervention 1: Control group: placebo receiver. Intervention 2: First intervention group: Topical vitamin C receiver. Intervention 3: Second intervention group: Systemic vitamin C recipient.</i_freetext>
      <results_actual_enrolment></results_actual_enrolment>
      <results_date_completed></results_date_completed>
      <results_url_link></results_url_link>
      <results_summary></results_summary>
      <results_date_posted></results_date_posted>
      <results_date_first_publication></results_date_first_publication>
      <results_baseline_char></results_baseline_char>
      <results_participant_flow></results_participant_flow>
      <results_adverse_events></results_adverse_events>
      <results_outcome_measures></results_outcome_measures>
      <results_url_protocol></results_url_protocol>
      <results_IPD_plan>Yes - There is a plan to make this available</results_IPD_plan>
      <results_IPD_description>What will be shared:
All data can be shared

When:
From September 2021 to 1 year after the publication of the article

To whom:
For all people, including those working in academic and scientific institutions and industry

Conditions:
Email and call

Where to obtain:
mohammad arab farashahi, 09133735190, sma.farashahi_69@yahoo.com

How to obtain:
After sending the email, the data is transferred

Comments:
</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>seyed mohammad arab farashahi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Faculty of Dentistry, Imam Reza Blvd., Kharat Blvd., Daheh Fajr Blvd., Yazd</address>
        <city>Yazd</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>8914881167</zip>
        <telephone>+98 35 3625 5881</telephone>
        <email>sma.farashahi_69@yahoo.com</email>
        <affiliation>Yazd University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>seyed mohammad arab farashahi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Faculty of Dentistry, Imam Reza Blvd., Kharat Blvd., Daheh Fajr Blvd., Yazd</address>
        <city>Yazd</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>8914881167</zip>
        <telephone>+98 35 3625 5881</telephone>
        <email>sma.farashahi_69@yahoo.com</email>
        <affiliation>Yazd University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Healthy patients aged 14-40 without medical conditions (including the absence of gastrointestinal diseases such as peptic ulcer, etc.) with bilateral symmetrical non-infectious premolars who need tooth extraction for orthodontic treatment.
Also have no history of smoking or alcohol consumption
Women are not pregnant or breastfeeding
Patients do not have psychiatric disorders
Patients do not use corticosteroids, anticonvulsant drugs such as phenytoin, contraceptive drugs containing estrogen and other antioxidant supplements in the period close to the study
Patients do not have history of allergy to toluidine blue
The selected teeth do not have bone loss or defects</inclusion_criteria>
      <agemin>14 years</agemin>
      <agemax>40 years</agemax>
      <gender>Both</gender>
      <exclusion_criteria>Patients who will miss more than 1 dose of vitamin C</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code></hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword></hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Placebo</i_code>
      <i_code>Treatment - Drugs</i_code>
      <i_code>Treatment - Drugs</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Control group: placebo receiver</i_keyword>
      <i_keyword>First intervention group: Topical vitamin C receiver</i_keyword>
      <i_keyword>Second intervention group: Systemic vitamin C recipient</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Socket depth. Timepoint: Immediately after extraction, 7 days and 21 days after tooth extraction. Method of measurement: From the marginal gingiva to the point where the probe enters the socket in mm.</prim_outcome>
      <prim_outcome>Mesiodistal dimension. Timepoint: Immediately after extraction, 7 days and 21 days after tooth extraction. Method of measurement: Measurement of the mesiodistal dimension of the silent tooth at the CEJ level of the adjacent teeth in millimeters.</prim_outcome>
      <prim_outcome>Buccolingual dimension. Timepoint: Immediately after extraction, 7 days and 21 days after tooth extraction. Method of measurement: Measurement of the buccolingual dimension of the silent tooth at the CEJ level of the adjacent teeth in millimeters.</prim_outcome>
      <prim_outcome>Pharmaceutical group. Timepoint: At the beginning of the study. Method of measurement: local/systemic.</prim_outcome>
      <prim_outcome>Age. Timepoint: At the beginning of the study. Method of measurement: The number of years in a person's life.</prim_outcome>
      <prim_outcome>Sex. Timepoint: At the beginning of the study. Method of measurement: A person's physical phenotype.</prim_outcome>
    </primary_outcome>
    <secondary_outcome>
      <sec_outcome></sec_outcome>
    </secondary_outcome>
    <secondary_sponsor>
      <sponsor_name></sponsor_name>
    </secondary_sponsor>
    <secondary_ids>
      <secondary_id>
        <sec_id></sec_id>
        <issuing_authority></issuing_authority>
      </secondary_id>
    </secondary_ids>
    <source_support>
      <source_name>Yazd University of Medical Sciences</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2022-12-12</approval_date>
        <contact_name>Research Ethics Committees of School of Dentistry-Shahid Sadoughi University of Medical Sciences</contact_name>
        <contact_address>Faculty of Dentistry, Imam Reza Blvd., Kharat Blvd., Daheh Fajr Blvd., Yazd yazd Yazd Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
