Alveolar bone defect
Conditions
Interventions
Experimental group:Aveolar ridge preservation using autogenous partially demineralized dentin matrix covered with collagen sponge
Control group:Aveolar ridge preservation using autogenous partially demineralized dentin matrix covered with absorbable collagen membrane
Blank group:Natural healing after aveolar ridge preservation using autogenous partially demineralized dentin matrix
Sponsors
Zhejiang Provincial People's Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: (1)Adult patients (>18 years old), systemically healthy; (2)Presence of a molar without retention value requiring extraction; (3)Post-extractive sites alveolar bone with at least two residual bone wall heights >= 3 mm;(4)Presence of at least one adjacent tooth; (5)The patients is with good compliance. After the periodontal treatment, the whole mouth plaque index was less than 20%, and the whole mouth BOP% was less than 25%.(6)Compliance with study-related procedures and signed the informed consent form.
Exclusion criteria
Exclusion criteria: (1) Acute infection of the affected or adjacent teeth;(2) Female patients during pregnancy or lactation;(3)Patients who taken drugs affecting platelet or bone regeneration within 3 months;(4) History of head and neck radiotherapy, uncontrolled systemic diseases;(5) Heavy smokers, smoking more than 10 cigarettes/day.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes of alveolar ridge height after operation;Changes of alveolar ridge width after operation;Imaging changes of bone volume at the extraction site from before tooth extraction to the end of 4 months; | — |
Countries
China
Contacts
Public ContactFan Yang
Zhejiang Provincial People's Hospital
Outcome results
None listed