Digital Assessment of Mandibular Flexure in Full Arch Fixed Restorations

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

9 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-01-20

Study Completion Date

2022-10-26

Brief Summary

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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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Detailed Description

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Conditions

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Mandibular Flexure Full Arch Fixed Prosthesis

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Mandibular flexure before sectioning of full arch fixed prosthesis

No interventions assigned to this group

Mandibular flexure after sectioning of full arch fixed prosthesis

Sectioning of the full arch mandibular fixed prosthesis

Intervention Type PROCEDURE

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

Interventions

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Sectioning of the full arch mandibular fixed prosthesis

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

Intervention Type PROCEDURE

Eligibility Criteria

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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.

Eligible Sex

ALL

Accepts Healthy Volunteers

No