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Evaluation of the alveolar ridge preservation effect of deproteinized bovine bone matrix and polylactic acid absorbable membrane on molar extraction sites: a prospective cohort study

Evaluation of the alveolar ridge preservationn effect of deproteinized bovine bone matrix and polylactic absorbable membrane on molar extraction sites: a prospective cohort study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2000040202
Enrollment
Unknown
Registered
2020-11-25
Start date
2020-12-01
Completion date
Unknown
Last updated
2021-01-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alveolar Preservation

Interventions

Experimental group:PDLLA membrane
control group:Collagen membrane

Sponsors

Department of implant, West China Stomatology Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
Male
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18-70 years old; 2. The patients who can't retain molars due to periodontal disease; 3. There were bone wall defects of more than 3 mm in height; 4. There is at least one healthy adjacent tooth in mesial and distal; 5. There was no acute infection; 6. Patients completed basic periodontal treatment.

Exclusion criteria

Exclusion criteria: 1. Systemic diseases that affect treatment outcomes; 2. Long term use of drugs that affect bone metabolism or bone healing; 3. Periodontitis without effective control; 4. Complete loss of bone wall; 5. Heavy smokers and alcoholics; 6. Pregnancy or lactation; 7. History of head and neck radiotherapy.

Design outcomes

Primary

MeasureTime frame
Alveolar ridge height;—

Countries

China

Contacts

Public ContactCai Ruiren

Department of implant, West China Stomatology Hospital, Sichuan University

327904824@qq.com+86 13880239968

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026