Comparison Between Injection Molded PEEK Framework and Cobalt Chromium Framework Removable Partial Dentures Regarding Biting Force

Study Overview
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Brief Summary
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This study is aiming to evaluate the biting force of polyetheretherketone (PEEK) framework partial dentures compared to that of cobalt-chromium ones in mandibular Kennedy class I edentulous cases hoping that polyetheretherketone (PEEK) framework removable partial dentures can improve the patient masticatory efficiency .

Official Title
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Evaluation of Biting Force of Removable Partial Denture 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: PEEK framework partial dentures
* Device: Cobalt- chromium framework partial dentures


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: -Kennedy class 1 partially edentulous subjects indicated for framework partial denture Exclusion Criteria: Uncooperative patients 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 |
| --- | --- |
| Experimental: PEEK framework partial dentures<br>High performance ketone polymers introduced lately.These polymer-based frameworks provide better esthetics, higher elasticity, lighter in weight, have low water sorption and solubility, and are easily repaired and reproduced. | Device: PEEK framework partial dentures<br>* Polymer-based framework recently introduced made of polyetheretherketone polymer frame combined with acrylic resin denture teeth and a conventional acrylic resin denture base.<br>|
| Active Comparator: Cobalt-chromium framework partial dentures<br>it is considered the gold standard framework. These frameworks are less bulky with high strength, conduct heat and electricity well, and have good durability. some disadvantages include hypersensitivity, adverse tissue reactions and bad aesthetics. | Device: Cobalt- chromium framework partial dentures<br>* It's a bio-compatible metal used in thin sections so 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 resistance to corrosion.Drawbacks of metal frameworks can include hypersensitivity, aesthetics because of metal metal display, oral galvanism, adverse tissue reactions, osteolysis of abutment teeth, and biofilm production<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Biting force | Biting force of the patient wearing the removable partial denture measured by I-load sensor device. | Change in baseline biting force from time of insertion, insertion after 1 month and after 3 months |