None listed
Conditions
Interventions
Medical Device : test group: Xenogeneic bone graft material (Bio-Oss Collagen 250mg 1ea) and xenogeneic resorbable collagen membrane (25*25mm 1ea) were applied on extraction socket
control group: no g
Sponsors
Yonsei University Health System, Dental Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: (1) Over 18 years of age, (2) no systemic or local conditions presenting a contraindication to extraction and implant placement (3) require extraction of at least one upper posterior molar with the root apices shown to project within the sinus cavity or be in contact with the sinus floor on a panoramic radiograph (Class 1 ~ 4) (4) remaining ridge height (from the ridge crest to the inferior border of maxillary sinus) after extraction ranging 4-8mm (5) no pathologic conditions of maxillary sinus such as mucosal thickening and cyst (6) have more than two residual teeth after extraction to be used as references during image superimposition (7) no smoking over 20 cigarettes per day (8) no pregnancy
Exclusion criteria
Exclusion criteria: (1) Under 18 years of age (2) Presence of systemic disease or bone metabolic disorder that is contraindicant for extraction or implantation (3) History of malignancy, radiotherapy, or chemotherapy in the past 5 years (4) Smoking over 20 cigarettes per day (5) Pregnant or lactating women
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| treatment modalities for the implant surgery (the feasibility to place a dental implant without additional maxillary sinus augmentation) | — |
Secondary
| Measure | Time frame |
|---|---|
| Linear change of the maxillary sinus for pneumatization and the grafted site | — |
Countries
Korea, Republic of
Contacts
Public ContactYoung Song
Yonsei University Health System, Dental Hospital
Outcome results
None listed