Comparison of Denture Base Adaptation and Per-iimplant Tissue Health Between CAD and CAM Implant Overdenture

Study Overview
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Brief Summary
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Background: Complete overdenture manufacturing has been greatly developed using computer-aided designing and computer-aided manufacturing (CAD-CAM) technology. Material and method: 15 completely edentulous patients, divided into two groups, received two implants in the mandibular canine area with ball attachment. The first group received a CAD/CAM-milled mandibular overdenture and a maxillary acrylic conventional complete denture, while the second group received a 3D-printed mandibular overdenture and a maxillary acrylic complete denture. Peri-implant soft tissue and denture adaptation were evaluated using clinical parameters

Detailed Description
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Background: In recent years, complete overdenture manufacturing has been greatly developed using computer-aided designing and computer-aided manufacturing (CAD-CAM) technology. This clinical study compared the soft tissue health between CAD/CAM-milled and 3D-printed implants that retained complete overdentures. Material and method: 15 completely edentulous patients, divided into two groups, received two implants in the mandibular canine area with ball attachment. The first group received a CAD/CAM-milled mandibular overdenture and a maxillary acrylic conventional complete denture, while the second group received a 3D-printed mandibular overdenture and a maxillary acrylic complete denture. Peri-implant soft tissue was evaluated using clinical parameters including the gingival index, plaque index, bleeding index, and probing depth at the time of mandibular complete overdenture insertion (T0), six months (T6), and twelve months (T12) of denture use.

Official Title
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Comparison of Denture Base Adaptation and Per-implant Tissue Health Between CAD and CAM Implant Retained Complete Overdenture

Conditions
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Periimplantitis

Intervention / Treatment
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* Device: subtractive technique
* Device: additive technique


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: poor denture adaptation co-operative patients Exclusion Criteria: metabolic diseases uncontrolled diabetes osteoporosis and hyperparathyroidism.

Ages Eligible for Study
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Minimum Age: 58 Years
Maximum Age: 68 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: 15 completely edentulous patients, divided into two groups, received two implants in the mandibular canine area with ball attachment. The first group received a CAD/CAM-milled mandibular overdenture and a maxillary acrylic conventional complete denture, while the second group received a 3D-printed mandibular overdenture and a maxillary acrylic complete denture. Peri-implant soft tissue was evaluated using clinical parameters including the gingival index, plaque index, bleeding index, and probing depth at the time of mandibular complete overdenture insertion (T0), six months (T6), and twelve months (T12) of denture use.
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: a CAD/CAM-milled mandibular overdenture and a maxillary acrylic conventional complete denture<br>patients received lower denture fabricated by milling technique | Device: subtractive technique<br>* The milled denture teeth are then bonded into the milled recesses using a special PMMA bonding system.<br>|
| Active Comparator: 3rd printed mandibular overdenture and a maxillary acrylic conventional complete denture<br>The denture base was fabricated by adding the material layer by layer | Device: additive technique<br>* The denture teeth were printed as one unit using the same method with tooth resin (DENTCA Denture Tooth, Shade A2).<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Modified Plaque Index | a calibrated pressure sensitive plastic periodontal probe, the distance between marginal border of the peri-implant mucosa and the tip of the probe was measured and considered as pocket depth | 12 months |