Digital Versus Conventional Altered Cast Techniques For Constructing Mandibular Distal Extension Removable Partial Dentures Using Digitally Fabricated Frameworks: Alveolar Bone Height Changes

Mansoura University

Status: Completed

Conditions: Denture, Partial, Removable

Treatments: Other: Removable Partial Denture Construction

Study type: Interventional

Funder types: Other

Identifiers

NCT05899712

A0203023RP

Details and patient eligibility

About

This clinical study compares between digital and conventional altered cast techniques using digitally constructed frameworks in removable partial dentures' construction regarding their effect on bone height changes around abutment teeth and in residual ridge.

Enrollment: 22 patients

Sex: All

Ages: 50 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. All patients having completely edentulous maxilla and class I Kennedy mandible.
2. Sufficient (not less than 15 mm) restorative space must be available (from the mucosa covering the crest of the residual ridge to proposed occlusal plane). This will be detected by a tentative jaw relation.
3. All patients are of angel's class I maxillo-mandibular relationships
4. Abutment teeth must meet certain requirements :

A. Abutment teeth should be healthy with good periodontal and bone support. B. should not show advanced destructions. C. should not show a pronounced degree of mobility or advanced gingival recession.

D. Crown Root Ratio for an abutment is 1:2

Exclusion criteria

1. Sever undercuts or concavities on the buccal or lingual sides of the ridge.
2. Systemic diseases that may affect bone changes such as diabetes and osteoporosis.
3. History of radiotherapy in the head and neck region.
4. Crown Root Ratio for an abutment is 1:1.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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22 participants in 2 patient groups

Group A

Active Comparator group

Description:

Digitally obtained altered cast for construction of mandibular free end saddle removable partial denture

Treatment:

Other: Removable Partial Denture Construction

Group B

Active Comparator group

Description:

Conventionally obtained altered cast for construction of mandibular free end saddle removable partial denture

Treatment:

Other: Removable Partial Denture Construction