Dentition Defect
Conditions
Interventions
Control group:The personalized guide plates, 3D printed based on the patient's CBCT and intraoral scanning data, are used for intraoperative registration. The actual fabrication of the personalized gu
Experimental group:A universal prefabricated guide plate (made of medical grade and biocompatible photosensitive resin) was fixed to the arch of the missing tooth area by the quick-setting resin, and
Sponsors
West China Hospital of Stomatology, Sichuan University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age >= 18 years old, gender not restricted, no systemic diseases throughout the body (such as uncontrolled diabetes, severe osteoporosis, etc.); 2. Patients with missing teeth who plan to undergo implant restoration; 3. The area of missing teeth is adjacent to at least three natural teeth without mobility, and the same side of the opposite dental row also has at least three natural teeth without mobility; 4. Good oral hygiene, the plaque index of the entire mouth <= 25%, the bleeding index of the entire mouth <= 25%; 5. Patients voluntarily participate in this study, understand and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Heavy smokers (>10 cigarettes per day); 2. Long-term use of drugs affecting bone metabolism or wound healing (such as bisphosphonates, immunosuppressants, glucocorticoids, etc.); 3. Pregnant or lactating women; 4. Patients with a history of radiotherapy for head and neck cancer within the past 5 years or undergoing chemotherapy; 5. Patients with small mouth opening (<40mm) or other temporomandibular joint problems such as limited mouth opening, clicking and joint pain.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Apical center deviation of the implant; | — |
Secondary
| Measure | Time frame |
|---|---|
| Implant stability quotient;Registration operation time;Platform center deviation of the implant;Angular deviation of the implant long axis; | — |
Countries
China
Contacts
Public ContactXingmei Yang
West China Hospital of Stomatology, Sichuan University
Outcome results
None listed