Defect of dentition
Conditions
Interventions
Test group:When extraction, immediate implantation and guided bone regeneration were performed at the same time, the gingival defect was covered with collagen membrane, and the gingival flap on its su
Control group:When extraction, immediate implantation and guided bone regeneration were performed at the same time, the gingival defect was covered with collagen membrane and the gingival flap on its
Sponsors
Zhongshan Hospital, Fudan University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Adult patients (age >=18 years), gender is not limited; 2.No serious systemic diseases, no contraindications for tooth extraction or implant surgery; 3.Good oral health; 4.There is one or more teeth with no retention value due to caries, fractures, periodontitis, periapical disease, and no acute inflammation; 5.The type of bone defect shown by preoperative CBCT was favorable bone defect.
Exclusion criteria
Exclusion criteria: 1.The patient has a serious systemic disease; 2.Pregnant or lactating patients; 3.Have received radiotherapy or chemotherapy one year ago; 4.Preoperative CBCT showed that the type of bone defect was more than two walls or circular bone defect.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The difference in bone tissue volume from baseline at 4 months after bone regeneration was measured; | — |
Countries
China
Contacts
Public ContactFei Yang
Zhongshan Hospital, Fudan University
Outcome results
None listed