None listed
Conditions
Interventions
Geistlich) and absorbent collagen shield (Bio-Gide®
Geistlich), followed by different wound closure method.
Procedure/Surgery : The intervention group consists of a control group and an experimental group, and the procedure is performed using the same bone graft material (Bio-oss® collagen
Sponsors
Seoul National University Dental Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Subjects who are scheduled to place an implant after extraction of a single tooth with severely advanced periodontal lesions 2. Subjects whose soft tissue maintains the height of the cementoenamel junction (CEJ), but significant bone resorption of 50% or more of the buccal and palatal/lingual alveolar height 3. Subjects with teeth adjacent to the extraction site 4. Subjects with appropriate oral hygiene and maintenance ability (FMBS, FMPS 25% or less) 5. Subjects who are willing to comply with the research protocol 6. Subjects who voluntarily agree to the clinical trial and are willing to comply with the study protocol.
Exclusion criteria
Exclusion criteria: 1. Subjects without multiple adjacent teeth 2. Subjects with clinical symptoms of apical lesions in the extraction socket 3. Subjects with untreated periodontal disease 4. Smokers who smoke more than 20 cigarettes per day 5. Subjects with uncontrolled hypertension or diabetes 6. Subjects with serious cardiovascular disease, respiratory system disease, kidney disease, liver disease, digestive system disease, blood system disease and neuropsychiatric disease 7. Subjects receiving radiation therapy on head and neck 8. Subjects with alcohol or drug addiction 9. Subjects with opening restriction 10. Subjects with hemorrhagic disease 11. Subjects with systemic diseases (osteoporosis, osteosarcoma, Paget's disease, etc.) or those who take drugs (chemotherapy treatment such as long-term steroids) that affect bone formation 12. Pregnant women 13. Cases where the researcher judged that the subject participation in the research is inappropriate because of other ethical or research results.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Soft tissue volumetric assessment | — |
Secondary
| Measure | Time frame |
|---|---|
| Alveolar bone volumetric assessment | — |
Countries
Korea, Republic of
Contacts
Public ContactHYUN YOUNG SONG
Seoul National University Dental Hospital
Outcome results
None listed