dentition defect
Conditions
Interventions
all-digitized:digital impression and CAD/CAM
semi-digitized:conventional impression and CAD/CAM
Sponsors
Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
18 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. privison of informed consent; 2. aged 18-75 years at enrolment; 3. single tooth loss with both mesial and distal adjacent teeth existed, history of edentulism at least 3 months; 4. adequate bone height of minimum 10mm and bone width of minimum of 5.5mm; 5. connection of abutment and crown not deeper than 1mm subgingivally; 6. residual teeth more than 20; 7. good oral hygiene with plaque percentage less than 25%; 8. ideal level and contour of adjacent soft tissue.
Exclusion criteria
Exclusion criteria: 1. inadequate bone quantity which needed bone graft; 2. Woman intended for or at pregnancy; 3. present systemic disease like diabetes mellitus or osteoporosis; 4. history of radiation therapy in the head and neck region or chemotherapy within 5 years; 5. present administration of corticosteroids or anticoagulants; 6. present alcohol and/or smoke abuse; 7. uncontrolled periodontal diseases and/or caries; 8. known current oral malignancy; 9. present oral parafunctional activity like burxism and clenching.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| success rate of prosthesis; | — |
Secondary
| Measure | Time frame |
|---|---|
| precision of prosthesis; | — |
Countries
China
Contacts
Public ContactLi Yan
Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University
Outcome results
None listed