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Using Sealing Socket Abutment Technique With Immediate Implant in the Mandibular Molars

Cairo University (CU) logo

Cairo University (CU)

Status

Completed

Conditions

Soft Tissue Mass

Treatments

Device: cover screw
Device: Sealing Socket Abutment

Study type

Interventional

Funder types

Other

Identifiers

NCT03667261
01118111027

Details and patient eligibility

About

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.

Full 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.

Enrollment

20 patients

Sex

All

Ages

20 to 60 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • 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

Exclusion criteria

  • 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 design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

20 participants in 2 patient groups

cover screw
Active Comparator group
Description:
extraction of hopeless mandibular molars followed by immediate implants that will be covered using cover screw
Treatment:
Device: cover screw
sealing socket abutment
Experimental group
Description:
extraction of hopeless mandibular molars followed by immediate implants that will be covered using sealing socket abutment
Treatment:
Device: Sealing Socket Abutment

Trial contacts and locations

1

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Central trial contact

ahmed zahran, master

Data sourced from clinicaltrials.gov

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