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Twenty completely edentulous patients were enrolled in this study. Each patient received two types of prostheses. 1) Conventional complete dentures. 2) 3D printed dimethacrylate-based resin complete dentures. Patient satisfaction was assessed using the oral health impact profile (OHIP-EDENT-N) survey questionnaire, and masticatory performance was evaluated with the two-colored chewing gum mixing ability by evaluation of the standard deviation of hue at (T0) at the time of complete denture insertion, (T3) after 3 months of denture use and (T6) after 6 months of denture use.
For each patient, conventional maxillary and mandibular complete dentures were constructed, followed by 3D printed complete dentures construction as follows: Scanning of maxillary and mandibular complete dentures and scanning of master casts were done using 3D scanner (VDSL Home Gateway model EchoLife DG8045 China) after lightly coated with anti-glare spray (Siladent Marmoscan spray basic Ref. 250022). The resultant data in STL format were transmitted to the CAD-CAM complete denture provider using a purpose-built software program (Exocad DentalIDB 2.4 plovdiv7290[version 2.4 Enginebuld 7290]). The anatomic landmarks were identified, and the peripheral limits were marked on a virtual model in the design software, which then were served to design the definitive complete denture.
The scanned STL image of the conventional complete denture which have been previously constructed was superimposed on the newly designed denture for comparison of polished surface, teeth alignment, size, and form of teeth. A digital preview was generated and sent for approval before fabrication.
Printing Preparation: The denture base shade was selected, and then the cassette of the 3D printer (RASDENT 3D printer) was filled with fresh DENTCA Denture Base II dimethacrylate-based resins with photo-initiator). Then the printer door closed. Printing procedures: The denture base model STL file was uploaded into the software. The denture base was oriented vertically on the build platform. Supports were generated around the perimeter of the denture base. The desired slice thickness was selected and then the printing was started. Cleaning, Bonding teeth to the denture base, Post-curing procedures, Finishing Evaluation of patient satisfaction: The OHRQoL of the patient was assessed using an instrument called OHIP-EDENT-N10.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Conventional (complete denture) | Active Comparator | Each patient received two prostheses: 1) Conventional Maxillary and mandibular complete denture. 2) 3D printed complete Maxillary and mandibular complete denture. The succession of complete denture insertion was randomized to reduce the impact of the order of the complete denture on patient satisfaction outcomes. Each denture was used for 3 months followed by 2 weeks rest period without wearing denture then the other type of denture was delivered and used for another 3 months. |
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| 3D printed complete denture | Active Comparator | Each patient received two prostheses: 1) Conventional Maxillary and mandibular complete denture. 2) 3D printed complete Maxillary and mandibular complete denture. The succession of complete denture insertion was randomized to reduce the impact of the order of the complete denture on patient satisfaction outcomes. Each denture was used for 3 months followed by 2 weeks rest period without wearing denture then the other type of denture was delivered and used for another 3 months. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| conventional complete denture | Other | conventional complete denture. The succession of complete denture insertion was randomized to reduce the impact of the order of the complete denture on patient satisfaction outcomes. Each denture was used for 3 months followed by 2 weeks rest period without wearing the denture then the other type of denture was delivered and used for another 3 months and vice versa. |
| Measure | Description | Time Frame |
|---|---|---|
| Patient satisfaction | The Oral health-related quality of life (OHRQoL) of the patient was assessed using an instrument called OHIP-EDENT-N A simple score was calculated by adding the responses to all the questions (0 = never; 1= seldom; 2 = fairly often; 3 = often; 4 = very often) | 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| chewing efficiency | two-color mixing ability test (colorimetric method) | 6 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of dentistry, mansoura university | Al Mansurah | Dakahlia Governorate | 35511 | Egypt |
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| ID | Term |
|---|---|
| D017060 | Patient Satisfaction |
| ID | Term |
|---|---|
| D000074822 | Treatment Adherence and Compliance |
| D015438 | Health Behavior |
| D001519 | Behavior |
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A crossover design was conducted. Each patient received two prostheses: 1) Conventional Maxillary and mandibular complete denture. 2) 3D printed Maxillary and mandibular complete denture.Each denture was used for 3 months followed by 2 weeks rest period without wearing the denture then the other type of denture was delivered and used for another 3 months.
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| 3D complete denture | Other | 3D complete denture. The succession of complete denture insertion was randomized to reduce the impact of the order of the complete denture on patient satisfaction outcomes. Each denture was used for 3 months followed by 2 weeks rest period without wearing the denture then the other type of denture was delivered and used for another 3 months and vice versa. |
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