NCT04884126

Brief Summary

Regional oral and maxillofacial defects secondary to ablative tissue resection can contribute to severe aesthetic and functional loss, which influences patients' regular life and may cause psychological problems. Microvascular free flaps are considered the gold standard for reconstructing large oral and maxillofacial defects. In the past decade, with the help of computer-aided design (CAD)/ computer-aided manufacturing (CAM) customized implants and prosthesis (CIP) have led to a significant improvement of the operative accuracy, improve the flap survival rate and enhance the patients' quality of life. Concerning the increased overall survival rate of the patients, people pay more attention to the quality of life and aesthetic appearance which are influenced by the fitness and compatibility of the CIP. However, from literature reviews, the evaluation was various to be concluded in some certain conditions from pooled studies.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 1996

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 1996

Completed
25.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2021

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

May 6, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 12, 2021

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2021

Completed
Last Updated

November 21, 2022

Status Verified

November 1, 2022

Enrollment Period

25.3 years

First QC Date

May 6, 2021

Last Update Submit

November 18, 2022

Conditions

Keywords

Dental ImplantsMandibular ReconstructionMouth Rehabilitation

Outcome Measures

Primary Outcomes (1)

  • The survival rate of the dental implants

    12 months after surgery

Study Arms (2)

One stage dental implants placement

Procedure: dental implant placement

Second stage dental implants placement

Procedure: dental implant placement

Interventions

The time of dental implant surgery

One stage dental implants placementSecond stage dental implants placement

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The files of patients diagnosed and treated between December 2004 and January 2020 for defect of dentition secondary to jaw resection were retrospectively reviewed. The patients who underwent dental implant surgery after ablative tumor resection with segmental mandibulectomy and vascularized bone flap graft were retrieved from the database.

You may qualify if:

  • \. Patients with grafted bone (fibula, iliac, scapula) and receive postoperative implant surgery.
  • Clinical and radiogram data were available for all treatment periods and follow-up visits (Pre-/post-CBCT and panoramic radiographs).
  • Over twelve months follow-up period after implant placement. 4.Age \> 18 years. 5.Fabrication and delivery of prosthesis following implant installation. 6.Treatment with a one-stage/two-stage surgical protocol.

You may not qualify if:

  • Patients diagnosed with osteoporosis.
  • Lost or missing medical history during follow-up period.
  • Follow-up period of dental implants was less than 12 months.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Prosthesis Failure

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Target Duration
12 Months
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD researcher,

Study Record Dates

First Submitted

May 6, 2021

First Posted

May 12, 2021

Study Start

January 1, 1996

Primary Completion

May 1, 2021

Study Completion

December 1, 2021

Last Updated

November 21, 2022

Record last verified: 2022-11