Comparison Between Injection Molded Polyetheretherketone (PEEK) Framework and Cobalt Chromium Framework Removable Partial Dentures Regarding Periodontal Health of Abutment Teeth

Study Overview
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Brief Summary
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This study is aiming to evaluate the periodontal status of the abutment teeth in Polyetheretherketone ( PEEK ) framework partial dentures compared with cobalt-chromium ones in mandibular kennedy class I edentulous cases aiming to preserve the optimum periodontal health of the abutment teeth .

Official Title
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Evaluation of Periodontal Health of the Abutment Teeth in Partial Dentures Made of Injection Molded PEEK Framework Versus Cobalt Chromium Framework in Mandibular Kennedy Class I Edentulous Cases

Conditions
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Mandibular Prosthesis User

Intervention / Treatment
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* Device: cobalt-chromium framework partial dentures
* Device: PEEK framework partial dentures


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Kennedy Class I partially edentulous subjects indicated for framework partial denture Exclusion Criteria: 1- uncooperative patients . 2- bad oral hygiene patients .
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: cobalt-chromium framework partial dentures<br>It's the gold standard biocompatible metal alloy used in thin sections, provide high strength and stiffness ,conduct heat and cold for a more natural experience, and is resistant to corrosion but their disadvantages include esthetic issues with metal display, oral galvanism, adverse tissue reactions,and osteolysis of abutment teeth. | Device: cobalt-chromium framework partial dentures<br>* It's a biocompatible metal alloy used in thin sections and are less bulky, provide high strength and stiffness ,conduct heat and cold for a more natural experience, enable designs that minimize the covering of the gingival margins, allow for a stable denture base, and is resistant to corrosion. Disadvantages include hypersensitivity, esthetic issues with metal display, oral galvanism, adverse tissue reactions, osteolysis of abutment teeth, and biofilm production .<br>|
| Experimental: PEEK framework partial dentures<br>It's a promising polymer-based framework has recently been introduced which is made of polyetheretherketone polymer frame combined with acrylic resin denture teeth and a conventional acrylic resin denture base. | Device: PEEK framework partial dentures<br>* It's a promising polymer-based framework material has recently been introduced which is made of polyetheretherketone polymer frame combined with acrylic resin denture teeth and a conventional acrylic resin denture base.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Periodontal status | periodontal status of the abutment teeth assessed by a periodontal chart . | Change in periodontal status will be assessed at base line , after one month and after 3 months . |