Soft Tissue MassNCT03667261
Using Sealing Socket Abutment Technique With Immediate Implant in the Mandibular Molars
A study testing Sealing Socket Abutment and cover screw in people with Soft Tissue Mass, run by Cairo University at 1 site in Egypt.
Trial summary
First and second molar locations present major challenges when immediate implant placement is planned due to large extraction sockets that are difficult to seal without mucoperiosteal flap reflection which is less comfortable to patient and also crestal socket morphology not amenable to standard healing abutment which… Read more about this study
- Who is it for?
- Ages 20 to 60 yearsHealthy volunteers can take part
- Conditions the study is for
- Soft Tissue Mass
- What is being tested?
- Sealing Socket Abutment and cover screw
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteEgypt
- Study dates
- 1 Sep 2018to 20 Feb 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 60 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Patients with hopeless molars in the posterior area of the mandible.
- Both sexes.
- No intraoral soft and hard tissue pathology
- No systemic condition that contraindicate implant placement
Who cannot join
- Very thin less than 0.5 mm or absent buccal plate.
- Heavy smokers more than 10 cigarettes per day.
- Patients with systemic disease that may affect normal healing.
- Psychiatric problems
- Disorders to implant are related to history of radiation therapy to the head and neck neoplasia, or bone augmentation to implant site
- Immunodeficiency pathology, bruxism, stress situation (socially or professionally), emotional instability, and unrealistic aesthetic demands.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Alveolar and Soft Tissue Changes Surrounding Immediate Implant in the Mandibular Molars With and Without Using Sealing Socket Abutment Technique (Randomized Clinical Trial)
First and second molar locations present major challenges when immediate implant placement is planned due to large extraction sockets that are difficult to seal without mucoperiosteal flap reflection which is less comfortable to patient and also crestal socket morphology not amenable to standard healing abutment which have circular shape and the possibility of high occlusal forces during function with complete provisional crown.Immediate implant placement without sealing socket abutment has several drawbacks, such as collapse of existing soft tissue and also it needs second stage surgery which is less comfortable to patient and chair time consuming for the operator.
Read the detailed description
The anatomical changes that occur with the alveolar ridge after the loss of tooth can be a challenge to redevelop during the restorative process. The preservation of the soft tissue level from the time of extraction may optimize the final prosthetic outcome. One technique that can be used to achieve ideal tissue form is immediate dental implant placement with a custom-healing abutment.
Immediate implant placement followed by immediate provisional restoration of single sites is a protocol used to replace a failing tooth. This technique may benefit patients with a thin periodontal biotype. Another benefit is the simplification of the final restorative procedure. Pre-fabricated healing abutments are circular in shape. Attempts at molding the tissue from a small opening above the implant to a contour similar to the missing tooth can take time. The preserved tissue profile can be easily duplicated in the impression process and allow for an accurate fabrication of a restoration in harmony with ideal tissue architecture at the day of insertion.
This form of maintenance of the supporting gingival tissue has been demonstrated to be beneficial using immediate pontics for tooth replacement. Preservation of form, rather than re-creation, is achieved with the extension of the pontic into the subgingival zone with a contour replicating that of the extracted tooth. Concepts from immediate pontics have been applied to immediate dental implants with a similar goal. This is achieved with either a custom healing abutment or a complete provisional crown. The use of a custom-healing abutment is recommended in patients who have a deep anterior bite, who present with signs of bruxism, or who have a malocclusion that is not conducive to the protection of an immediate restoration.
- Conditions
- Soft Tissue Mass
- Being tested
- Sealing Socket Abutment, cover screw
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Sealing Socket AbutmentDevice
Also called Anatomic Harmony Abutment
Sealing Socket Abutment (SSA) serves as a mechanical barrier to isolate the grafted area, stabilize the clot and contain the graft material, and seal the socket from foreign contaminants and also minimizing the risk of premature loading of the implant during healing. By preparing an SSA fabricated to follow the transmucosal contours of the natural tooth, the grafted area can be sealed and separated from the growth of soft tissue without the use of a membrane or releasing incisions
cover screwDevice
immediate implant placement in mandibular molar area will be covered with conventional cover screw
| Study group | Role | What they receive |
|---|---|---|
| cover screw | Active comparator | extraction of hopeless mandibular molars followed by immediate implants that will be covered using cover screw Receives: Device: cover screw |
| sealing socket abutment | Experimental | extraction of hopeless mandibular molars followed by immediate implants that will be covered using sealing socket abutment Receives: Device: Sealing Socket Abutment |
What is being measured
The primary outcome is the main question the study is designed to answer.
Soft tissue changes around implant
The PES comprises the following five variables: mesial papilla, distal papilla, curvature of the facial mucosa, level of the facial mucosa, and root convexity/soft tissue, color and texture at the facial aspect of the site. Using a 0-1-2 scoring system, 0 being the lowest, 2 being the highest value, the maximum achievable PES is 14 at time of surgery and at the time of final prothesis.
All ten parameters are assessed by direct comparison with the contralateral tooth and a score of 2, 1, or 0 is assigned to all ten parameters. Thus, a maximum total PES of 10 can be reached which represents the optimum condition of the soft tissues of the rehabilitated site compared to the characteristics of the contralateral natural tooth.
Measured: 18 months
Secondary outcomes (1)
marginal bone loss
The marginal bone on the buccal and lingual surface of the dental implant cannot be assessed with periapical views in millimeters from fixed point .
Using the same exposure parameter settings selected after a pilot test and images reconstructed with the same slice thickness and a cutting direction for histological matching to compare preoperative and postoperative.
Measured: 18 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Sep 2018
- Study start1 Sep 2018
- Primary completion20 Feb 2021
- Study completion20 Feb 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Soft Tissue MassStudies of the same condition, open and under way.
- More trials run by Cairo UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- cases with with hopeless mandibular molars followed by immediate implant placement
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ahmed Mohamed Amen Zahran, Cairo University
- Investigators
- mohamed atef, Principal investigator, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03667261
- Sponsor's protocol ID
- 01118111027
- Status last verified
- Apr 2024
- First submitted
- 18 Jul 2018
- Last updated
- 19 Apr 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 19 Apr 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Alveolar and Soft Tissue Changes Surrounding Immediate Implant in the Mandibular Molars With and Without Using Sealing Socket Abutment Technique (Randomized Clinical Trial)
- ClinicalTrials.gov ID
- NCT03667261
- Acronym / sponsor ID
- 01118111027
- Conditions
- Soft Tissue Mass
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- 1 Sep 2018 (actual)
- Primary completion
- 20 Feb 2021 (actual)
- Study completion
- 20 Feb 2021 (actual)
- First posted
- 12 Sep 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
First and second molar locations present major challenges when immediate implant placement is planned due to large extraction sockets that are difficult to seal without mucoperiosteal flap reflection which is less comfortable to patient and also crestal socket morphology not amenable to standard healing abutment which have circular shape and the possibility of high occlusal forces during function with complete provisional crown.Immediate implant placement without sealing socket abutment has several drawbacks, such as collapse of existing soft tissue and also it needs second stage surgery which is less comfortable to patient and chair time consuming for the operator.
Detailed description
The anatomical changes that occur with the alveolar ridge after the loss of tooth can be a challenge to redevelop during the restorative process. The preservation of the soft tissue level from the time of extraction may optimize the final prosthetic outcome. One technique that can be used to achieve ideal tissue form is immediate dental implant placement with a custom-healing abutment.
Immediate implant placement followed by immediate provisional restoration of single sites is a protocol used to replace a failing tooth. This technique may benefit patients with a thin periodontal biotype. Another benefit is the simplification of the final restorative procedure. Pre-fabricated healing abutments are circular in shape. Attempts at molding the tissue from a small opening above the implant to a contour similar to the missing tooth can take time. The preserved tissue profile can be easily duplicated in the impression process and allow for an accurate fabrication of a restoration in harmony with ideal tissue architecture at the day of insertion.
This form of maintenance of the supporting gingival tissue has been demonstrated to be beneficial using immediate pontics for tooth replacement. Preservation of form, rather than re-creation, is achieved with the extension of the pontic into the subgingival zone with a contour replicating that of the extracted tooth. Concepts from immediate pontics have been applied to immediate dental implants with a similar goal. This is achieved with either a custom healing abutment or a complete provisional crown. The use of a custom-healing abutment is recommended in patients who have a deep anterior bite, who present with signs of bruxism, or who have a malocclusion that is not conducive to the protection of an immediate restoration.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
- Model description
- cases with with hopeless mandibular molars followed by immediate implant placement
| Arm | Type | Receives |
|---|---|---|
| cover screw | Active comparator | Device: cover screwextraction of hopeless mandibular molars followed by immediate implants that will be covered using cover screw |
| sealing socket abutment | Experimental | Device: Sealing Socket Abutmentextraction of hopeless mandibular molars followed by immediate implants that will be covered using sealing socket abutment |
Who may qualify
- Ages
- 20 to 60 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Patients with hopeless molars in the posterior area of the mandible.
- Both sexes.
- No intraoral soft and hard tissue pathology
- No systemic condition that contraindicate implant placement
Key exclusion criteria (6 listed)
- Very thin less than 0.5 mm or absent buccal plate.
- Heavy smokers more than 10 cigarettes per day.
- Patients with systemic disease that may affect normal healing.
- Psychiatric problems
- Disorders to implant are related to history of radiation therapy to the head and neck neoplasia, or bone augmentation to implant site
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Sealing Socket AbutmentAlso: Anatomic Harmony AbutmentSealing Socket Abutment (SSA) serves as a mechanical barrier to isolate the grafted area, stabilize the clot and contain the graft material, and seal the socket from foreign contaminants and also minimizing the risk of premature loading of the implant during healing. By preparing an SSA fabricated to follow the transmucosal contours of the natural tooth, the grafted area can be sealed and separated from the growth of soft tissue without the use of a membrane or releasing incisions | Device | sealing socket abutment |
| cover screwimmediate implant placement in mandibular molar area will be covered with conventional cover screw | Device | cover screw |
Primary outcome
Soft tissue changes around implant
Time frame: 18 months
The PES comprises the following five variables: mesial papilla, distal papilla, curvature of the facial mucosa, level of the facial mucosa, and root convexity/soft tissue, color and texture at the facial aspect of the site. Using a 0-1-2 scoring system, 0 being the lowest, 2 being the highest value, the maximum achievable PES is 14 at time of surgery and at the time of final prothesis. All ten parameters are assessed by direct comparison with the contralateral tooth and a score of 2, 1, or 0 is assigned to all ten parameters. Thus, a maximum total PES of 10 can be reached which represents the optimum condition of the soft tissues of the rehabilitated site compared to the characteristics of the contralateral natural tooth.
1 secondary outcome
marginal bone loss
Time frame: 18 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Apr 2024.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
mohamed atef principal investigator
Cairo University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Sealing Socket Abutment and cover screw in people with Soft Tissue Mass, run by Cairo University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 19 Apr 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Soft tissue changes around implant (time frame: 18 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Apr 2024.