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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
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| a CAD/CAM-milled mandibular overdenture and a maxillary acrylic conventional complete denture | Active Comparator | patients received lower denture fabricated by milling technique |
|
| 3rd printed mandibular overdenture and a maxillary acrylic conventional complete denture | Active Comparator | The denture base was fabricated by adding the material layer by layer |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| subtractive technique | Device | The milled denture teeth are then bonded into the milled recesses using a special PMMA bonding system. |
|
| 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 |
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Inclusion Criteria:
poor denture adaptation co-operative patients
Exclusion Criteria:
metabolic diseases uncontrolled diabetes osteoporosis and hyperparathyroidism.
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| Name | Affiliation | Role |
|---|---|---|
| Marwa Aboelez, Phd | Mansoura University | Principal Investigator |
| Radwa Emera, Phd | Mansoura University | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Mansoura university | Al Mansurah | 35516 | Egypt |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 36704186 | Background | Emera RMK, Shady M, Alnajih MA. Comparison of retention and denture base adaptation between conventional and 3D-printed complete dentures. J Dent Res Dent Clin Dent Prospects. 2022 Summer;16(3):179-185. doi: 10.34172/joddd.2022.030. Epub 2022 Nov 15. | |
| 41826501 | Derived | Elmanci TM, Mourad KE, Abdelsameaa SE, Aboelez MA, Emera RMK. Peri-implant soft tissue health and denture base adaptation of CAD/CAM milled versus 3D-printed implant-assisted mandibular overdentures: one-year randomized clinical trial. Sci Rep. 2026 Mar 13;16(1):9091. doi: 10.1038/s41598-026-40422-9. |
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| ID | Term |
|---|---|
| D057873 | Peri-Implantitis |
| ID | Term |
|---|---|
| D010510 | Periodontal Diseases |
| D009059 | Mouth Diseases |
| D009057 | Stomatognathic Diseases |
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| ID | Term |
|---|---|
| D066251 | Subtractive Hybridization Techniques |
| ID | Term |
|---|---|
| D020869 | Gene Expression Profiling |
| D005821 | Genetic Techniques |
| D008919 | Investigative Techniques |
| D009693 | Nucleic Acid Hybridization |
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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.
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| additive technique | Device | The denture teeth were printed as one unit using the same method with tooth resin (DENTCA Denture Tooth, Shade A2). |
|