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

Marginal Bone Changes of CAD/CAM Implant Supported Screw-retained Metal Frameworks Based on Actual Versus Screwmented Ones Based on Virtual Implant Position: A Randomized Clinical Stud

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04722744

Enrollment

Registered

2021-01-25

Start date

2022-03-01

Completion date

2023-06-30

Last updated

2022-03-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bone Loss, Patient Satisfaction

Brief summary

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.

Detailed 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.

Interventions

PROCEDUREscrewmented metal frameworks

Intervention group: in which the edentulous area will be restored with 3-implant, screwmented CAD/CAM frameworks constructed based on planned implant positions

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to 60 Years

Healthy volunteers

Yes

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%).

Design outcomes

Primary

Measure	Time frame	Description
marginal bone changes.	6 months	Using long cone paralleling technique , RINN XCP and Digora (digital periapical radiographs for standardization. the bone loss is measured in mm

Secondary

Measure	Time frame	Description
Patient satisfaction	6 months	Patient satisfaction questionnaire using Visual Analogue Scale (VAS) scale, from 0-100, where 0 is the worst meaning that patient is not satisfied and 100 is the highest satisfaction meaning the patient is totally satisfied

Countries

Egypt

Contacts

Primary ContactAmr Magdy, Masters

amr.magdy@dentistry.cu.edu.eg00201285247060

Backup ContactIman Radi, PhD

iman.abdelwahab@dentistry.cu.edu.eg

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026