NCT05973357

Unknown

The Influence of Vertical Implant Position With Immediate Pr...

Cairo University Source

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Other study identifiers

Sponsor study identifier

1407

Study Type

interventional

Estimated enrollment

60

Locations

0 countries

Sites

N/A

Timeline

Study Start

September 20, 2023

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Primary Completion

September 20, 2025

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Study Completion

October 30, 2025

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Brief Summary

Multiple clinical studies have established high survival rates and tremendous predictability of dental implant treatment. However, a pleasant esthetic outcome is the patient's primary expectation regarding implants in the esthetic zone and several esthetic factors have been evaluated to contribute to an esthetic appearance. Among these, the midfacial soft tissue level is considered to be one of the most important factors; Cosyn and co-workers reported that among factors including soft tissue phenotype, the midfacial recession was associated with the position of the implant . Therefore, subcrestal implant placement has been advocated as it has been associated with the reduction of crestal bone loss in cases with decreased soft tissue thickness. If the vertical soft tissues on the crest of the alveolar ridge are 2 mm or less at the time of implant placement, implants will undergo unavoidable bone resorption by establishing sufficient biologic protection. Another option was proposed by Linkevicius et al, who introduced the subcrestal implant placement as a method to accommodate the problem of thin soft tissues. Research question: Does the placement of delayed implants with different vertical depth affect the marginal bone loss with immediate provisionalization?

Registry Overview

Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.

Recruitment status: unknown
Estimated enrollment: 60 participants
Study completion date: October 30, 2025
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Listed locations: 0 countries · 0 sites

Trial Relationships

Click on a node to explore related trials.

Some registry-reported names shown below are not yet linked in this graph.

Study Timeline

Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.

First Submitted
July 24, 2023
Actual (reported)
First Posted
August 2, 2023
Actual (reported)
Study Start
September 20, 2023
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
September 20, 2025
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
October 30, 2025
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.

Last Updated: August 2, 2023
Status Verified: August 2023
Last Update Submitted: August 1, 2023

Conditions

Dental Implant Failed Implant Site Reaction

Keywords

Delayed ImplantImmediate loadingTemporizationprovisionalization

Outcome Measures

Primary Outcomes (1)

Marginal bone loss
Crestal bone loss
1 year follow up

Secondary Outcomes (5)

Mid facial recession
1 year follow up
The pink esthetic score
1 year follow up
Gingival Thickness
1 year follow up
Implant Survival
1 year follow up
Post-operative patient satisfaction
1 year follow up

Study Arms (2)

Sub-crestal group

EXPERIMENTAL

Patients receiving delayed implant placed 2mm sub-crestal level with immediate provisionalization

Procedure: Sub-crestal implant

Equi-crestal grouo

EXPERIMENTAL

Patients receiving delayed implant placed equi-crestal level with immediate provisionalization

Procedure: Equi-crestal implant

Interventions

Sub-crestal implantProcedure

Patients receiving delayed implant placed 2mm sub-crestal level with immediate provisionalization

Sub-crestal group

Equi-crestal implantProcedure

Patients receiving delayed implant placed equi-crestal level with immediate provisionalization

Equi-crestal grouo

Eligibility Criteria

Age18 Years - 50 Years

Sexall

Healthy VolunteersYes

Age GroupsAdult (18-64)

You may qualify if:

● Patients with single missing upper anterior or premolar teeth
Patients with minimum buccolingual width of 6 mm and mesiodistal width of 6mm

Sponsors & Collaborators

Cairo University
Otherlead

Study Design

Study Type: interventional
Phase: not applicable
Allocation: RANDOMIZED
Masking: DOUBLE
Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
Purpose: TREATMENT
Intervention Model: PARALLEL
Sponsor Type: OTHER
Responsible Party: PRINCIPAL INVESTIGATOR
PI Title: Assistant Lecturer

Study Record Dates

First Submitted

July 24, 2023

First Posted

August 2, 2023

Study Start

September 20, 2023

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Primary Completion

NCT06446687

Radiographic Assessment of Bone Gain Following Sinus Lifting With Simultaneous Implant Placement Using Crestal Approach With Membrane Control Technique for Bone Augmentation of Atrophied Maxillary Posterior Ridge

Not ApplicableUnknown

NCT06254885

Insertion Protocol of Convergent Transmucosal Design Implants

Not ApplicableUnknown

NCT04787237

Vetsibular Socket Therapy Versus Buser's Technique

Not ApplicableCompleted

NCT06240416

Autogenous Particles Harvesting During Implant Surgery

Not ApplicableUnknown

NCT04102748

Evaluation of Esthetic Outcomes of M-shaped Flap Implant Uncovering Technique Versus I-shaped Incision Around Single Implants in the Anterior Maxilla Using Pink Esthetic Score

Not ApplicableUnknown

NCT06151314

Bone Density and Marginal Bone Height Changes Around Dental Implants

Not ApplicableCompleted

Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.

Patients with healthy systemic conditions.

Patients older than 18 years.

Good oral hygiene.

Accepts one year follow-up period (cooperative patients).

The patient provides informed consent.

Adequate Inter-arch space for implant placement.

Favorable occlusion (no traumatic occlusion).

Absence of allergy to the prescribed medications.

You may not qualify if:

● Patients with inadequate bone volume and/ or quality
Patients with local root remnants
Patients with inadequate wound healing
Patients with signs of acute infection related to the area of interest.
Patients with habits that may jeopardize the implant longevity and affect the results of the study such as parafunctional habits (Lobbezoo et al., 2006).
Heavy smokers patients (more than 10 cigarettes per day) (Lambert, Morris and Ochi, 2000).
Metabolic diseases such as diabetes or hyperthyroidism as well as systemic medications such as chemotherapy or bisphosphonates
Pregnant or nursing women.
Uncooperative patients.

Contact the study team to confirm eligibility.

September 20, 2025

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Study Completion

October 30, 2025

Estimated (date passed)

This estimate has passed. The registry has not confirmed an actual date for this milestone.

Last Updated

August 2, 2023

Record last verified: 2023-08

Source record

Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.

Source: ClinicalTrials.gov.

JSON downloads include source attribution and retrieval details alongside the unchanged original record or the separately normalized values.

Registry identifier: NCT05973357
Data provider: ClinicalTrials.gov
Source updated: 2023-08-02
Normalization version: ctgov-legacy-1

Open registry record

Source retrieved: 2026-10-25 22:36:48 UTC

Brief Summary

Registry Overview

Trial Relationships

Related Scientific Literature

Study Timeline

First Submitted

First Posted

Study Start

Primary Completion

Study Completion

Conditions

Keywords

Outcome Measures

Primary Outcomes (1)

Secondary Outcomes (5)

Study Arms (2)

Sub-crestal group

Equi-crestal grouo

Interventions

Eligibility Criteria

You may qualify if:

Sponsors & Collaborators

Study Design

Study Record Dates

You may not qualify if:

Source record