Comparison Between Two Different Healing Abutments in Single Posterior Implants

August 2, 2025 updated by: Rania Elsayed, Alexandria University

Comparison of Two Different Healing Abutments in Single Posterior Implants: A Randomized Clinical Trial

The aim of this randomized clinical trial is to evaluate the volumetric analysis of peri-implant soft tissues after 3 months of the use of a prefabricated healing abutment with scan peg in comparison to customized healing abutment.

Study Overview

Detailed Description

Volumetric analysis of peri-implant soft tissues after 3 months of the use of a prefabricated healing abutment with scan peg with convex emergence profile in comparison to customized healing abutment with concave emergence profile.

Study Type

Interventional

Enrollment (Estimated)

24

Phase

  • 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

      • Alexandria, Egypt
        • Faculty of Dentistry, Alexandria University, Egypt

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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adult patients who are classified as ASA I or II physical status and require mandibular single implants (single missing mandibular posterior teeth) with:

    1. Proper bone height and width.
    2. Adequate zone of keratinized tissue (at least 2 mm)

Exclusion Criteria:

  • Any systematic disease as uncontrolled diabetes mellitus or metabolic bone diseases
  • Pregnancy and Lactation
  • A history of head and neck radiation treatment.
  • Chronic periodontal diseases.
  • Poor oral hygiene (Silness-Löe plaque index score 2 and 3)
  • Parafunctional habits.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Prefabricated healing abutment with scan peg (Neoss implant system, Harrogate, England)
12 participants will receive single posterior implants by fully guided implant protocol followed by placement of prefabricated healing abutment with scan peg having convex emergence profile
12 participants will receive single posterior implants by fully guided implant protocol followed by placement of prefabricated healing abutment with scan peg having convex emergence profile
Active Comparator: Customized healing abutment
12 participants will receive single posterior implants by fully guided implant protocol followed by placement of custom healing abutment having concave emergence profile
12 participants will receive single posterior implants by fully guided implant protocol followed by placement of custom healing abutment having concave emergence profile

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Measurement of peri-implant soft tissues volume
Time Frame: 3 months
Each participant will undergo volumetric analysis of peri-implant soft tissues after 3 months healing either after using prefabricated healing abutment with scan peg in comparison to customized healing abutment using a 3D meteorology software (GOM inspect). It will be measured in millimeter cube
3 months

Collaborators and Investigators

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

Investigators

  • Study Director: Mervat E Abdellah, Alexandria 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)

November 1, 2024

Primary Completion (Actual)

May 1, 2025

Study Completion (Estimated)

October 1, 2025

Study Registration Dates

First Submitted

November 4, 2024

First Submitted That Met QC Criteria

November 8, 2024

First Posted (Actual)

November 12, 2024

Study Record Updates

Last Update Posted (Actual)

August 5, 2025

Last Update Submitted That Met QC Criteria

August 2, 2025

Last Verified

August 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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.

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