Radiographic and Histomorphometric Evaluation of Xenograft as a Socket Preservation Material in Maxillary Posterior Teeth.

November 23, 2025 updated by: Suez Canal University

Radiographic and Histomorphometric Evaluation of Xenograft as a Socket Preservation Material in Maxillary Posterior Teeth: A Randomized-Controlled Clinical Study

Radiographic and Histomorphometric Evaluation of Xenograft as a Socket Preservation Material in Maxillary Posterior Teeth: A Randomized-Controlled Clinical Study

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The process of natural healing starts with new bone formation taking place from initial islands of bone within the connective tissue occurring after a 4 to 8 weeks interval from extraction date. This is followed by the manifestation of a mature trabecular structure that can be noticed at 10 to 20 weeks after extraction accompanied with a reduction in osteoblast count. As a result of the extensive bone resorption post extraction, the prosthetically driven implant placement is compromised and in need of some ridge preservation techniques that have been widely studied to try and ensure less alveolar bone loss. The aim of this research is to study the S1-XB Xenograft containing hydrogel and to evaluate its effects on extraction socket healing in comparison to natural socket healing. This is an In-Vivo comparative randomized controlled study that will be conducted on patients of the outpatient clinic of Oral and Maxillofacial department Suez Canal University to evaluate the difference between using S1-XB bone graft as a socket preservation material and normal socket healing without adding any socket preservation materials.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
16

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • Egypt
      • Ismailia, Egypt
        • Suez Canal University

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Male patients aged between 21 and 40 years.
  • General good health.
  • Absence of any relevant systemic disease.
  • Presence of a hopeless maxillary posterior tooth that requires extraction.
  • Extraction site suitable for replacement by a dental implant.
  • Cases have adequate bone width and length.
  • Volunteer subjects must sign an informed consent.

Exclusion Criteria:

  • Poor oral hygiene with no possibility of improvement.
  • Smokers (more than 10 cigarettes per day).
  • Chronic treatment with any medication known to affect oral status and bone turnover.
  • Drug or alcohol abuse.

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Study group
(8 cases): was treated by immediate socket preservation with S1-XB xenograft augmentation after extraction.
Device: S1-XB
Socket grafted with xenograft containing alginate hydrogel material
Placebo Comparator: Control group
(8 cases): was not exposed to any type of socket preservation after the extraction procedure.
Procedure: Control (Standard treatment)
Atraumatic extraction and sockets were allowed to undergo normal healing without any graft materials

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Histomorphometric analysis
Time Frame: 16 weeks
Samples were first stained with hematoxylin and eosin (H&E) to demonstrate the general tissue architecture, cellular distribution, and overall structural organization. Subsequently, sections were stained with Masson's Trichrome (MTC) to allow both qualitative and quantitative assessment of bone trabeculae and osteoid tissue. Osteopontin (OPN) immunohistochemistry was used to assess the percentage of OPN expression area within the surrounding connective tissue. The OPN poly-colonal antibody was purchased from Thermo Fisher Scientific, Catalog # PA1-72061. Images were captured at ×400 magnification using a SOPTOP EX20 microscope with HD camera. ImageJ software was used to quantify area% from five standardized fields per section at oral pathology laboratory, Faculty of Dentistry, Suez Canal University.
16 weeks
Radiographic evaluation
Time Frame: 16 weeks
Cone-beam computed tomography (CBCT) scans (Scanora 3D) were obtained immediately after extraction at baseline and postponed at 4 months postoperatively to evaluate the following parameters: bone density that was measured in Hounsfield units (HU) at the center of the socket, ridge height that was determined by vertical distance from the crestal bone to a fixed reference point and ridge width that was measured at 3 mm apical to the crest.
16 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Suez Canal University

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2024

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 16, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 23, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 26, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 26, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 23, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 547-2022

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings