<?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>IRCT20211208053334N1</trial_id>
      <utrn></utrn>
      <reg_name>IRCT</reg_name>
      <date_registration>2022-08-06</date_registration>
      <primary_sponsor>Tehran University of Medical Sciences</primary_sponsor>
      <public_title>Evaluation of Implant Placement by digital method</public_title>
      <acronym></acronym>
      <scientific_title>Evaluation of Placement Accuracy (Precision &amp; Trueness) In Digitally-guided Implants and Prefabricated Provisional Single-unit Restorations: A Clinical Trial Study</scientific_title>
      <scientific_acronym></scientific_acronym>
      <date_enrolment>2022-08-11</date_enrolment>
      <type_enrolment>anticipated</type_enrolment>
      <target_size>14</target_size>
      <recruitment_status>Complete</recruitment_status>
      <url>https://irct.ir/trial/60771</url>
      <study_type>interventional</study_type>
      <study_design>Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Treatment, Other design features: this study includes only one group of patients. the aim of this study is to compare the position of implant and its temporary restoration with its digitally designed counterpart. As a result, there is no blinding or randomization in this study.</study_design>
      <phase>N/A</phase>
      <hc_freetext>Partial loss of teeth, unspecified cause.</hc_freetext>
      <i_freetext>Intervention group: single-unit implant placement in partially edentulous patients with the aid of surgical guides, which are designed (3shape dental system©) and printed after obtaining intraoral scan and CBCT radiographic records. Each patient undergoes a single-session surgery. Implant fixtures (DIO Implant©) are placed without incisions (flapless surgery) and according to the drilling protocols related to the fixture size. Customized healing abutments are inserted immediately after fixture placement. A post-surgical CBCT radiography will be taken after the surgery. Temporary crowns will be cemented (Hoffman zinc phosphate cement©) two weeks after the surgery, and a subsequent intraoral scan will be recorded. The actual fixture and crown position will be compared using post-surgical records. Patients will be set to come back after three months to assess the clinical success of the implants (early implant failure, bleeding on probing, and peri-implant probing depth)..</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:
Radiographic records, intraoral scans, and virtual designs for surgical guides, customized abutments, and temporary crowns will be available. These records don't allow patient recognition; each will be merely made related to an intraoral scan.

When:
Study documents will be available to applicants three months after the article's publication.

To whom:
Researchers in possession of a study proposal related to our study topic are eligible to receive the records.

Conditions:
Using study records for further investigations and analysis as well as combining these records with other studies to reach more comprehensive results are suitable.

Where to obtain:
records can be requested by contacting parsa.pirooz78@gmail.com

How to obtain:
The request will be assessed based on the study proposal and the researchers' intent to use the records. The records will be immediately provided after it is established that there is no possibility of misuse.

Comments:
</results_IPD_description>
    </main>
    <contacts>
      <contact>
        <type>public</type>
        <firstname>parsa pirooz</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Hassanabad - Zargandeh ghadir alley omidvar alley Number 14 3rd floor</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>1916994696</zip>
        <telephone>+98 21 2200 7927</telephone>
        <email>p-pirooz@student.tums.ac.ir</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
      <contact>
        <type>scientific</type>
        <firstname>parsa pirooz</firstname>
        <middlename></middlename>
        <lastname></lastname>
        <address>Hassanabad - Zargandeh ghadir alley omidvar alley Number 14 3rd floor</address>
        <city>Tehran</city>
        <country1>Iran (Islamic Republic of)</country1>
        <zip>1916994696</zip>
        <telephone>+98 21 2200 7929</telephone>
        <email>p-pirooz@student.tums.ac.ir</email>
        <affiliation>Tehran University of Medical Sciences</affiliation>
      </contact>
    </contacts>
    <countries>
      <country2>Iran (Islamic Republic of)</country2>
    </countries>
    <criteria>
      <inclusion_criteria>at least two months after tooth extraction
acceptable occlusion</inclusion_criteria>
      <agemin>no limit</agemin>
      <agemax>no limit</agemax>
      <gender>Both</gender>
      <exclusion_criteria>presence of a systemic disease
smoking
contraindication for surgical procedures
presence of parafunctional habits
presence of TMJ complications
need for graft or sinus lift surgery</exclusion_criteria>
    </criteria>
    <health_condition_code>
      <hc_code>K08.40</hc_code>
    </health_condition_code>
    <health_condition_keyword>
      <hc_keyword>Partial loss of teeth, unspecified cause</hc_keyword>
    </health_condition_keyword>
    <intervention_code>
      <i_code>Treatment - Surgery</i_code>
    </intervention_code>
    <intervention_keyword>
      <i_keyword>Intervention group: single-unit implant placement in partially edentulous patients with the aid of surgical guides, which are designed (3shape dental system©) and printed after obtaining intraoral scan and CBCT radiographic records. Each patient undergoes a single-session surgery. Implant fixtures (DIO Implant©) are placed without incisions (flapless surgery) and according to the drilling protocols related to the fixture size. Customized healing abutments are inserted immediately after fixture placement. A post-surgical CBCT radiography will be taken after the surgery. Temporary crowns will be cemented (Hoffman zinc phosphate cement©) two weeks after the surgery, and a subsequent intraoral scan will be recorded. The actual fixture and crown position will be compared using post-surgical records. Patients will be set to come back after three months to assess the clinical success of the implants (early implant failure, bleeding on probing, and peri-implant probing depth).</i_keyword>
    </intervention_keyword>
    <primary_outcome>
      <prim_outcome>The difference in implant angulation of designed and actual implants. Timepoint: immediately after surgery. Method of measurement: post-surgical CBCT.</prim_outcome>
      <prim_outcome>The difference in apex location of designed and actual implants. Timepoint: immediately after surgery. Method of measurement: post-surgical CBCT.</prim_outcome>
    </primary_outcome>
    <secondary_outcome>
      <sec_outcome>The difference in placement angle of designed and actual crowns. Timepoint: two weeks after surgery and placement of the temporary restoration. Method of measurement: post-operative intraoral scanning.</sec_outcome>
      <sec_outcome>The difference in crown depth of designed and actual crowns. Timepoint: two weeks after surgery and placement of the temporary restoration. Method of measurement: post-operative intraoral scanning.</sec_outcome>
      <sec_outcome>Early Implant Failure. Timepoint: up to three months after surgery. Method of measurement: clinical and radiographic examination.</sec_outcome>
      <sec_outcome>Bleeding on Probing. Timepoint: 3 months after surgery. Method of measurement: periodontal probing.</sec_outcome>
      <sec_outcome>Peri-implant probing depth. Timepoint: 3 months after surgery. Method of measurement: periodontal probing.</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>Tehran University of Medical Sciences</source_name>
    </source_support>
    <ethics_reviews>
      <ethics_review>
        <status>Approved</status>
        <approval_date>2021-12-19</approval_date>
        <contact_name>Ethics committee of Tehran University of Medical Sciences</contact_name>
        <contact_address>Hassanabad - Zargandeh ghadir alley omidvar alley Number 14 3rd floor, Tehran, 1916994696, Iran Tehran Tehran Iran (Islamic Republic of)</contact_address>
        <contact_phone></contact_phone>
        <contact_email></contact_email>
      </ethics_review>
    </ethics_reviews>
  </trial>
</trials>
