<?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>IRCT20171123037603N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2023-07-28</date_registration>
      <primary_sponsor>Rehmat Memorial Dental Teaching Hospital.</primary_sponsor>
      <public_title>Effect of occlusal reduction on postoperative pain in teeth with symptomatic apical periodontitis following endodontic treatment.</public_title>
      <acronym></acronym>
      <scientific_title>EFFECT OF OCCLUSAL REDUCTION ON POSTOPERATIVE PAIN IN TEETH WITH SYMPTOMATIC APICAL PERIODONTITIS FOLLOWING ENDODONTIC INSTRUMENTATION</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2021-07-01</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>60</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/71618</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Prevention, Randomization description: After informed consent taken from the subjects . Each individual was allotted an intervention group with the help of lottery method. This lottery method was conducted with the help of computer software. No concealment was done from the participant.</study_design>
      <phase>1-2</phase>
      <hc_freetext>Patients with mandibular or maxillary posterior teeth with symptomatic apical periodontitis..</hc_freetext>
      <i_freetext>Intervention group: Occlusal reduction.</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 It has personal data like home address and personal mobile numbers. this can be liability for many subjects</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>Asim qureshi Qureshi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Riaz house  hill street opposite hotel one</address>
        <city>Abbottabad</city>
        <country1>Pakistan</country1>
        <zip>224400</zip>
        <telephone>+92 340 9053423</telephone>
        <email>asimovtm@gmail.com</email>
        <affiliation>Ayub medical college</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>Asim qureshi Qureshi</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Main manshera road Abbottabad</address>
        <city>Abbottabad</city>
        <country1>Pakistan</country1>
        <zip>224400</zip>
        <telephone>+92 340 9053423</telephone>
        <email>asimovtm@gmail.com</email>
        <affiliation>Ayub medical and dental college</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Pakistan</country2>
    </countries>
    <criteria>
      <inclusion_criteria>Mandibular and maxillary posterior teeth with symtomatic apical periodontitis
Teeth that and tender to percussion</inclusion_criteria>
      <agemin>18 years</agemin>
      <agemax>no limit</agemax>
      <gender>Both</gender>
      <exclusion_criteria>Teeth without an opposing tooth
Teeth associated with facial swelling
Teeth associated with sinus</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>Prevention</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group: Occlusal reduction</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>Pain perceived by subject. Timepoint: 24 hours after the procedure. Method of measurement: Visual analogue scale (VAS) printed and handed to subject.</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>Rehmat Memorial Dental Teaching Hospital.</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2021-05-20</approval_date>
        <contact_name>The ethical committee at Rehmat Memorial Post graduate Dental Teaching Hospital</contact_name>
        <contact_address>Supply Bazar , Main road Abbottabad Khyber Pakhtunkhwa Pakistan</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
