Comparison of Three Final Impression Techniques for Severely Resorbed Mandibular Ridges

Tanta University8 enrolled

Overview

This in vivo crossover study aims to compare the accuracy of three different final impression techniques for severely resorbed mandibular ridges in completely edentulous patients. The accuracy of the impressions will be evaluated digitally using three-dimensional scanning and deviation analysis to determine differences among the impression techniques.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Severely Resorbed Mandibular Ridge in Completely Edentulous Patients

Interventions

Conventional final impressionPROCEDURE

Conventional final impression technique using alginate impression material followed by zinc oxide eugenol (ZOE) impression material

Wax impression techniquePROCEDURE

Wax impression technique using a wax impression followed by alginate impression material.

Compound impression techniquePROCEDURE

Compound impression technique using a low fusing impression compound followed by alginate impression material.

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: \- Exclusion Criteria:Inclusion Criteria: 1. Completely edentulous patients with severely resorbed mandibular ridges. 2. Patients requiring a mandibular complete denture. 3. Patients able to tolerate the impression procedures and attend the required study visits. 4. Patients willing to participate in the study and provide informed consent. Exclusion Criteria: 1. Patients with systemic or local conditions that contraindicate conventional dental impression procedures. 2. Patients with pathological lesions or significant abnormalities affecting the mandibular denture-bearing area. 3. Patients unable to tolerate or cooperate with the impression procedures. 4. Patients who decline to participate or withdraw their informed consent. -

Locations (1)

Faculty of Dentistry, Tanta University

Tanta, Gharbia Governorate, Egypt

Outcomes

Primary Outcomes

3D deviation (RMS) between final impression scans

The accuracy of the final impression techniques was assessed by three-dimensional deviation analysis of the impression scans using Geomagic Control software. Root Mean Square (RMS) deviation was calculated by comparing the scans obtained using the different impression techniques.

Time frame: Immediately after each final impression was recorded

Data from ClinicalTrials.gov

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