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NCT Number: NCT07588789

The Aim of the Study Will be Clinically and Radio Graphically Comparison of Two Implant Designs Used to Treat Atrophied Mandible . Implant Design Comparison Will Done for Implant Stability,Peri-implant Soft Tissue Health Changes and Bone Changes .Patients Will be Divided Randomly Into Two Group

The aim of the present study will be clinical and radio graphical comparison of four basal and compressive implant designs will be installed in the interforamina area of atrophied edentulous mandible and immediately loaded by screw retained mandibular overdenture .

Implant design comparison will be done clinically and radiographically after one and two years of implant loading

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Conditions

Dental Implant Bone Loss Peri-Implant Health

Age range

40 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Faculty of dentistry Mansoura university

Al Mansurah, Egypt

About this study

Patients will be divided randomly in to 2 equal groups:

  • Group1: this group will receive immediate loaded screw retained complete overdenture supported by 4 basal implants design .
  • Group2 :this group will receive immediate loaded screw retained complete overdenture supported by 4 compressive implants design
  • After final implant placements, they will be immediately scanned by intraoral scanner to construct milled in titanium bar which will be immediately screwed into the implants
  • Mandibular screw retained complete overdenture will be constructed.

Evaluation will be for:

  • Peri implant tissue health that will be measured according to mombelli(12) at the time of insertion(T0), 6months(T1) and 12months (T2).
  • Marginal bone height changes will be measured using standardized digital panoramic x-ray(13) after 6months (T0), 12month(T1) and 24months(T2) after prosthesis insertion.
  • Periotest will evaluate the stability of the implants during implantation (T0) , 3months(T1) and 6months(T3) following surgery(14) .

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

-

mandibular and maxillary alveolar ridges are completely edentulous (2) There is not sufficient bone in the mandibular posterior molar area to place implants and there is a thin ridge anteriorly (3) skeletal class I maxilla-mandibular relationship (4) Devoid o f any systemic disorders related to bone resorptio

Exclusion criteria

  • present of systematic disease Chem therapy Bone diseases

Treatment and study plan

Basal Dental implant

Device

Placement of four basal dental implants in the atrophied edentulous mandible followed by immediate loading using a bar-retained mandibular overdenture.

Other names: Basal implant group, Immediate loading

Compressive Dental implant

Device

Placement of four compressive dental implants in the atrophied edentulous mandible followed by immediate loading using a bar-retained mandibular overdenture.

Primary outcomes

  1. Peri-implant tissue health

    Time frame: Baseline, 6 months, and 12 months after implant loading.

    Peri-implant tissue health that will be measured according to mombelli for both groups

  2. Marginal bone height changes

    Time frame: Baseline, 6 months, and 12 months after implant loading.

    Marginal bone height changes will be measured using standardized digital panoramic x-ray for both groups

  3. Implant stability

    Time frame: Baseline, 6 months, and 6 months after implant loading.

    Periotest will evaluate the stability of the implants during implantation for both groups

Sponsors and collaborators

Lead sponsor

Mansoura University

Other

Registry information

Official study title

Basal Versus Compressive Implant Designs Immediately Loaded With Bar Retained Complete Overdenture for Atrophied Edentulous Mandibular Ridge: Clinical and Radiographic Study of peri_implant Tissue Health

Acronym: Implants types

Important dates

Study start
2025
Primary completion
2025
Study completion
2026
First posted
May 15, 2026
Registry last updated
May 15, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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