the affected teeth in the aesthetic area cannot be preserved for various reasons
Conditions
Interventions
control group:Only bone collagen and collagen sponge plugs, no fibrous resin splints are used.
test group:Geistlich Bio-Oss? Collagen is grafted in the alveolar fossa, the crown is covered with a collagen sponge plug (i.r.g ?. collagen sponge), and the upper layer is closed with a temporary fix
Sponsors
Shanghai Ninth People's Hospital Affiliated Shanghai JiaoTong University School of Medicine
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: Age 18-40 years. The maxillary anterior teeth cannot be preserved and needs to be repaired with deferred implants. The thickness of the labial bone plate of the affected tooth is < 1 mm. The affected tooth has mesiodistal and distal adjacent teeth. There is no obvious defect in the soft tissue of the affected tooth. The affected tooth has a stable bite in the mesial and distal teeth. Patient is willing to undergo site preservation.
Exclusion criteria
Exclusion criteria: Smoking > 10 cigarettes/day. Severe caries of adjacent teeth or uncontrolled periodontal disease. Tooth torsion and crowding affect implant placement. Acute infection of the affected tooth (abscess or discharge of pus). More than 7 days after total dislocation of the affected tooth. Uncontrolled diabetes mellitus, hypertension, or other systemic disease. Received treatment with drugs affecting bone metabolism within the past 3 months. History of radiation therapy to the head and neck. Imaging tests produce artifacts. Pregnancy, lactation, or pregnancy plans within half a year. Edentulous periods are not accepted.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| gingival papilla height; | — |
Secondary
| Measure | Time frame |
|---|---|
| middle gingival height;Alveolar bone width;Alveolar bone height;Retention rate of fiber-reinforced composite splints and complications;Patient postoperative pain and swelling score; | — |
Countries
China
Contacts
Public ContactJiang Long
Shanghai Ninth People's Hospital Affiliated Shanghai JiaoTong University School of Medicine
Outcome results
None listed