Implant problems caused by alveolar bone defects
Conditions
Interventions
Pre-conical xenobone ring group:A conical allograft ring was transplanted to the alveolar bone defect
Preformed columnar xenograft bone ring implant group:The columnar preosteogenic ring was transplanted to the alveolar bone defect
GBR incremental bone implant group (Bio-OSS bone powder periosteum):Bio-oss bone powder Bio-Guide periosteum was transplanted to the implant bone defect
Autogenous bone ring implant group:Autogenous mental bone was taken and autogenous bone ring was transplanted to alveolar bone defect
Sponsors
Zhejiang Provincial People's Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 60 Years
Inclusion criteria
Inclusion criteria: 1. Patients with single or multiple teeth missing and complex bone defects in the missing tooth area, i.e. single wall defect >= 3mm, or three-dimensional bone defect; 2. Exclude systemic diseases and patients with local implantation conditions; 3. Patients with subjective implant intention, good medical compliance, and able to cooperate with preoperative examination and postoperative follow-up.
Exclusion criteria
Exclusion criteria: 1. Patients with severe periodontitis, or patients with periodontitis under treatment but not under control; 2. Patients with poor systemic condition and unable to tolerate implant surgery; 3. Patients with severe diabetes or other basic diseases, affecting the contraindication of tooth implantation such as osseointegration after implantation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| three-dimensional bone incremental effect; | — |
Countries
China
Contacts
Public ContactGang Cheng
Zhejiang provincial people's hospital
Outcome results
None listed