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Completed

NCT Number: NCT05617274

Digital Assessment of Mandibular Flexure in Full Arch Fixed Restorations

Nine patients (five males and four females) were included in this study who had long-term (10-15 years) of long-span rigid mandibular fixed prostheses that may have led to radiographic changes around the supporting teeth. The treatment plans included the removal of the long-span fixed rigid prostheses followed by restoring the patients with segmented implant-supported prostheses. In order to digitally measure the mandibular flexure, reference markers were adhered to the prostheses, and intraoral scans were obtained before and after splitting the preexisting prostheses at the minimum and maximum mouth opening. The distances between the markers were measured, and mandibular flexure was calculated by subtracting the distance between the markers during the maximum mouth opening from the minimum mouth opening. An independent sample T-test was used to compare mandibular flexure before and after splitting the long-span fixed prostheses.

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Key information

Conditions

Mandibular Flexure Full Arch Fixed Prosthesis Pathologic Processes Pathological Conditions, Signs and Symptoms Postoperative Complications Prosthesis Failure

Sex eligibility

All sexes

Study type

Observational

Primary location

Future University in Egypt

Cairo, 111111, Egypt

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • full-arch mandibular single fixed prostheses that served for many years (average 12 years) opposed by natural dentition.
  • Patients were free from any systemic or debilitating diseases such as bone diseases, diabetes melilites, or blood dyscrasias.

Exclusion criteria

  • patients with healthy fixed full-arch prosthesis
  • patients with segmented prosthesis
  • patients with systematic debilitating diseases.
  • Patients with temporomandibular joint dysfunction, maxillofacial surgeries, or mandibular trauma.

Treatment and study plan

Sectioning of the full arch mandibular fixed prosthesis

Procedure

The one unit full arch fixed prosthesis is sectioned at the midline into two pieces

Primary outcomes

  1. change in mandibular flexure

    Time frame: immediately after the splitting of the full arch fixed prosthesis.

    change in mandibular flexure before and after splitting of the fixed full arch prosthesis

Sponsors and collaborators

Lead sponsor

Future University in Egypt

Other

Registry information

Official study title

Retrospective Digital Study of Mandibular Flexure in Patients With Long-span Fixed Restorations Supported by Natural Teeth.

Important dates

Study start
2021
Primary completion
2022
Study completion
2022
First posted
Nov 15, 2022
Registry last updated
Nov 15, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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