<?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>IRCT20180913041032N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2018-10-14</date_registration>
      <primary_sponsor>Shiraz University of Medical Sciences</primary_sponsor>
      <public_title>Effect of Xylitol Varnish in Caries Prevention Around Orthodontic Brackets</public_title>
      <acronym></acronym>
      <scientific_title>Evaluation the Preventive Effect of Two Concentration of Xylitol Varnish vs Fluoride Varnish on Enamel Demineralization Around Orthodontic Brackets: A randomized controlled trial</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2018-09-13</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>120</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/34089</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Prevention, Randomization description: Dynamic randomized block design for balancing age and sex with block size of 8 using online randomization, Blinding description: The patients, therapist and the data collector and analyzer will be blinded with respect to the type of varnish used. In this regard the varnish tubes will be labeled as A, B, C and D.</study_design>
      <phase>3</phase>
      <hc_freetext>Demineralization around Orthodontic brackets..</hc_freetext>
      <i_freetext>Intervention 1: Intervention group 1:  Xylitol varnish 10%. Intervention 2: Intervention group 2: Xylitol varnish 20 %. Intervention 3: Intervention group 3: Sodium fluoride varnish 5%. Intervention 4: Control group: Placebo varnish.</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>Undecided - It is not yet known if there will be a plan to make this available</results_IPD_plan>
      <results_IPD_description>Justification or reason for indecision in sharing IPD is Sampling will be start before 1 January 2019.</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>Mojgan Shavakhi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>School of Dentistry, Ghasr o Dasht St</address>
        <city>Shiraz</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>7195615878</zip>
        <telephone>+98 71 3625 7449</telephone>
        <email>shavakhi.m@gmail.com</email>
        <affiliation>Shiraz University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Hooman Zarif Najafi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>School of Dentistry, Ghasr o Dasht St</address>
        <city>Shiraz</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>7195615878</zip>
        <telephone>+98 71 3626 3193</telephone>
        <email>zarifhooman@gmail.com</email>
        <affiliation>Shiraz University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Patients with Class I malocclusion and complete permanent dentition up to the first molars.
Good overall health and good oral hygiene (full mouth plaque score &lt; 20 %); with no bleeding after 30 seconds or having a discontinuous band of plaque at the gingival margin.
Normal salivary flow rate (&gt;1.0 mL/min) and buffer capacity (final pH between 6.0 and 7.0).</inclusion_criteria>
      <agemin>13 years</agemin>
      <agemax>17 years</agemax>
      <gender>Both</gender>
      <exclusion_criteria>History of previous orthodontic treatment or extractions, bleaching or topical fluoridation.
Severe crowding &gt;6 mm, severely rotated teeth.
Visible sign of caries, fluorosis, hypocalcification or developmental defects.
Dental crowns, amalgam or composite filling which extended to the buccal surface.
Systemic or endocrine condition (such as cardiac pacemakers or diabetes mellitus).
Craniofacial anomalies and clefts
Smokers.</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>Treatment - Drugs</i_code>
      <i_code>Treatment - Drugs</i_code>
      <i_code>Treatment - Drugs</i_code>
      <i_code>Placebo</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group 1:  Xylitol varnish 10%</i_keyword>
      <i_keyword>Intervention group 2: Xylitol varnish 20 %</i_keyword>
      <i_keyword>Intervention group 3: Sodium fluoride varnish 5%</i_keyword>
      <i_keyword>Control group: Placebo varnish</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Mean Diagnodent number. Timepoint: Before starting intervention, 3 and 6 months later and at the end of orthodontic treatment. Method of measurement: Diagnodent pen 2190.</prim_outcome>
    </primary_outcome>
    <secondary_outcome>
      <sec_outcome>Visual assessment of white spot lesions. Timepoint: At the end of orthodontic treatment. Method of measurement: With the Gorelick index.</sec_outcome>
      <sec_outcome>Assessment of patients satisfaction of varnish therapy. Timepoint: After varnish therapy for patient. Method of measurement: Satisfaction questionnaire with binary (Yes/No) design.</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>Shiraz University of Medical Sciences</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2018-09-12</approval_date>
        <contact_name>Ethics committee of Shiraz University of Medical Sciences</contact_name>
        <contact_address>School of Dentistry, Ghasr o Dasht St shiraz Fars Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
