Patient Satisfaction and Bone Changes for OT Cap and OT Vertical Attachment

Study Overview
=================
Brief Summary
-----------------
The purpose of this study aimed to answer a clinical question whether In a patient with bilateral distal extension area, would the metal framework partial denture with OT vertical attachment versus partial denture with OT CAP attachment result in better patient satisfaction?

Official Title
-----------------
Patient Satisfaction and Bone Changes in Bilateral Distal Extension Case Using OT Cap Versus OT Vertical Attachment Randomized Clinical Trial

Conditions
-----------------
Patient Satisfaction, Bone Changes

Intervention / Treatment
-----------------
* Other: OT Vertical attachment
* Other: OT cap attachment


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: patients age ranged between 35-45years old. All patients have Kennedy class I partially edentulous mandibular arch in which the last remaining teeth were the second premolars bilaterally. The abutment teeth had an apparently good periodontal condition with no signs of mobility or inflammation with firm and healthy mucosa. Edentulous ridge covered by health firm mucoperiosteum, without abnormal bony irregularity or severe lingual undercuts. Patients with normal relationship of maxilla and mandible (Angle class I ridge classification) and sufficient inter-arch space (6mm) the size of the attachment The opposing dentition is intact arch with no noticeable over eruption or tilting or restored with acceptable fixed restoration. All patients are free from neurological, muscular disorders and tempro-mandibular joint disorders. Only patients who can be easily motivated to achieve and maintain good oral Exclusion Criteria: Patient with limited skills Un co-operative patients. patient with bad oral hygiene

Ages Eligible for Study
-----------------
Minimum Age: 35 Years
Maximum Age: 45 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

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


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: OT Vertical attachment<br>The attachment consists of a male part that is in the form of a steady with a central hole. This part is attached to the abutments .the female component is a white standard retentive clip engaging the outer walls of a steady male. It is incorporated in the partial denture together with a castable balancing pin that fits into the central hole of the steady male and aids in centering the prosthesis during the final stage of insertion; thereby ensuring a longer life to the retentive clips. | Other: OT Vertical attachment<br>* new extra coronal castable attachment<br>* Other names: Castable twin cylinder attachment;|
| Active Comparator: OT Cap attachment<br>Beveled castable bar with micro-size sphere located in first molar region, and attached to the distal surface of the waxed crowns to be cast as one piece, Nylone caps of standard retention for micro size sphere this nylon caps fit onto their spheres and located in metal housing at fitting surface on the denture and Positioning rings to maintain the space for nylon cap during construction of the partial denture metal framework. | Other: OT cap attachment<br>* standard extra coronal attachment<br>* Other names: extra coronal castable attachment;|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| patient satisfaction assessed using questionnaire | Questionnaire for patient satisfaction | 9 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| bone height | radio graphically by digora | 9 months | 
| bone density | radio graphically by digora | 9 months |