Marginal Bone Changes of CAD/CAM Implant Supported Screw-retained and Screw-mented Metal Frameworks

Cairo University (CU)

Status: Unknown

Conditions: Patient Satisfaction; Bone Loss

Treatments: Procedure: screwmented metal frameworks

Study type: Interventional

Funder types: Other

Identifiers

NCT04722744

101120

Details and patient eligibility

About

compare CAD/CAM implant supported screw-retained metal frameworks based on actual versus screw-mented ones based on virtual implant position regarding marginal bone changes.

Full description

patients with at least three missing teeth will be recruited and randomly assigned into two parallel groups. both groups will receive three implants based on planned implant positions and then one group will receive screw retained CAD CAM restoration with conventional impression technique while the second group will receive screw-mented CAD CAM restoration based on planned implant positions.

Enrollment: 20 estimated patients

Sex: All

Ages: 18 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Kennedy class I, II Or IV cases.
• Opposing completely dentulous, fully or partially restored dentition.
• Good oral hygiene.
• The patient should have bone for implants, minimum bone height 10 mm and minimum bone diameter should be 6 mm.
• Adequate inter arch space for restoration 15mm or more.
• Adult patients age ≥18 years

Exclusion criteria

• any medical disorder that could complicate surgical phase or affect osteointegration. Radiation chemotherapy.
• smokers more than 10/daily.
• Uncooperative patients.
• Patients with Para-functional habits
• Patients with severe periodontal diseases.
• Patients with limited mouth opening.
• Presence of intraoral pathological lesions.
• Diabetic (HbA1c >7.5%).

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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20 participants in 2 patient groups

screwmented metal frameworks based on virtual implant position.

Experimental group

Description:

this group will receive a CAD CAM restoration based on virtually planned implant position.

Treatment:

Procedure: screwmented metal frameworks

screw-retained metal frameworks based on actual implant position.

Active Comparator group

Description:

this group will receive screw retained CAD CAM restoration based on actual implant position using conventional open tray impression.

Treatment:

Procedure: screwmented metal frameworks