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Recruiting NCT06723678

Evaluation of Bone Changes Around Implants in Patients Treated With All on Four

No phase Interventional Edentulous Alveolar Ridge In Mandible Complete Edentulism All on Four Technique Dental Implant

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Two distally inclined 45-degree angle posterior implants, Two distally inclined 30-degree angle posterior implants.
Who it may be relevant to
Registry conditions: Edentulous Alveolar Ridge In Mandible, Complete Edentulism, All on Four Technique, Dental Implant. Basic parameters: 50 years — 65 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Egypt
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Radiographic Evaluation of Crestal Bone Changes Around Implants in Patients Treated With Delayed Loaded All on Four (Randomized Clinical Trail)

Overview

The Goal of the clinical trail is to evaluate the Bone height changes around two axially placed anterior implants and two distally inclined 30-degree angle posterior implants in comparison to two axially placed anterior implants and two distally inclined 45-degree angle posterior implants using cone beam CT (CBCT). Patients will visit the clinic after the surgery and after the framework and denture insertion for check ups and during the follow up periods ( at denture insertion, 6 months and 12 months)

Detailed description

All patients will receive upper complete dentures and mandibular All on-4 screw-retained prosthesis. The upper complete denture will be mucosa supported and the lower will be All on-4 screw-retained prosthesis. Patients will be divided into two equal groups; Group I will receive two axially placed anterior implants and two distally inclined 30-degree angle posterior implants, while Group II will receive two axially placed anterior implants and two distally inclined 45-degree angle posterior implants.

Both groups will be functionally loaded after three months of insertion. Bone height changes around axial and distally inclined implants will be evaluated using cone beam CT (CBCT), All records will be taken at time of denture insertion, 6 and 12 months later.

Interventions

  • Procedure Two distally inclined 45-degree angle posterior implants
    During the surgery, two axially placed anterior implants and two distally inclined 45-degree angle posterior implants will be placed, after healing period, All on-4 screw-retained prosthesis will be delivered to the patients.
  • Procedure Two distally inclined 30-degree angle posterior implants
    During the surgery, two axially placed anterior implants and two distally inclined 30-degree angle posterior implants will be placed, after healing period, All on-4 screw-retained prosthesis will be delivered to the patients

Primary outcome measures

  • Bone Height Changes [Time frame: All records will be taken at time of denture insertion, 6 and 12 months later.]

Eligibility criteria

Inclusion criteria

  • All patients' ages must range from 50-65 years old.
  • All patients' ridges should be covered with firm mucosa free from any signs of inflammation or ulceration and exhibit adequate height and width of the residual alveolar ridge.
  • Patients should be free from any metabolic or bone disorders that contraindicate implant installation.
  • All patients must have sufficient inter arch space

Exclusion criteria

  • Patients with oral or systemic diseases.
  • Patients with xerostomia or excessive salivation.
  • Patients with parafunctional habits (bruxism or clenching).
  • Heavy smoker or alcoholic patients.
  • Patients with history of temporo-mandibular dysfunction.
  • Patients with brain disorders or psychiatric disorders

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Double blind
Primary purpose
Treatment

Study locations

Egypt · 1 center
  • Al-Azhar University Girls Branch — Cairo

Identifiers

NCT: NCT06723678 · P-PD-24-28

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗