Ultrasonography and Cone-Beam Computed Tomography for Peri-implant Tissue Evaluation

A Retrospective Study on Use of Ultrasonography and Cone-Beam Computed Tomography for Evaluating Peri-implant Tissue

Objectives: Although cone-beam computed tomography (CBCT) is becoming a standard of care in implant therapy, concerns have been raised recently about its limitation in imaging peri-implant tissues due to artifacts. The aim of present study was to demonstrate the complementary role of ultrasound (US), for a comprehensive examination of peri-implant tissues in live humans. Material and Methods: Patients with > 1 implant, a CBCT scan, an US scan, and clinical photographs taken during the open-bone surgery were included. The crestal bone thickness (CBT) and facial bone level (FBL) were measured on both modalities, and direct FBL measurements were also made on clinical images. The correlation plots were made to evaluate the measurement agreements between the 3 methods.

Study Overview

• Status: Completed
• Conditions: Ultrasonography

• Study Type: Observational
• Enrollment (Actual): 4

Contacts and Locations

Study Locations

• United States
  • Michigan
    • Ann Arbor, Michigan, United States, 48109
      • University of Michigan

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: N/A

• Sampling Method: Non-Probability Sample

Study Population

See eligibility criteria

Description

Inclusion Criteria:

• the patients had to have ≥ 1 implant with a CBCT scan, US scan, and clinical photographs taken during the surgery, e.g. a revision/explantation surgery due to peri-implantitis or a 2nd stage uncover surgery.

Study Plan

How is the study designed?

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
Implant group; Patients with 1 or more implants with CBCT, ultrasound and open-bone images

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Crestal bone thickness	facial bone thickness measured at 1 mm apical to bone crest	up to 100 months after implant surgery.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Facial bone height	facial bone height measured from implant platform	up to 100 months after implant surgery.

Collaborators and Investigators

• Sponsor: University of Michigan

Study record dates

Study Major Dates

• Study Start (Actual): November 1, 2019
• Primary Completion (Actual): May 30, 2020
• Study Completion (Actual): July 7, 2020

Study Registration Dates

• First Submitted: July 15, 2020
• First Submitted That Met QC Criteria: July 24, 2020
• First Posted (Actual): July 27, 2020

Study Record Updates

• Last Update Posted (Actual): April 13, 2026
• Last Update Submitted That Met QC Criteria: April 7, 2026
• Last Verified: July 1, 2020

More Information

Terms related to this study

• Other Study ID Numbers: HUM00179671

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: No share with others

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No