Partial edentulism
Conditions
Interventions
Control:Alveolar ridge preservation with Bio-Oss Collagen and barrier membrane
Intervention:Alveolar ridge preservation with Bio-Oss Collagen
Sponsors
Department of Prosthodontics, Hospital of Stomatology, Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
20 Years to 60 Years
Inclusion criteria
Inclusion criteria: (1) Aged 20 to 70 year-old male or female; (2) Insufficient bone volume for immediate or early implant placement; (3) At least one tooth requires extraction, with indication of alveolar ridge preservation; (4) Extracted tooth can be incisors, canines, premolars or molars in upper or lower jaw (3rd molar excluded); (5) Reasons for extraction could be caries, tooth defect, endodontic complications, periapical disease or chronic periodontitis, and 3 bone wall should be intact for extracted site; (6) Adequate oral hygiene (Bleeding on probing = 20%; Plaque index = 20%); (7) Willingness to attend the trial.
Exclusion criteria
Exclusion criteria: (1) Unwillingness to be enrolled; (2) Tobacco usage over 10/d; (3) Extracted tooth is 3rd molar, deciduous tooth, supernumerary tooth, impacted tooth, malposed tooth, orthodontically extracted tooth, disused tooth, or other tooth without need for restorations; (4) Extraction sites with no plan for implant restorations are deemed unnecessary for ARP; (5) Extraction sites with ideal bone envelope for immediate implant placement are deemed unnecessary for ARP; (6) Extraction sites with sufficient bone for early or conventional implant placement are deemed unnecessary for ARP; (7) Allergy to bone graft or collagen membrane; (8) Medical history that contraindicated oral surgical treatment (for example, severe heart disease, malignant tumor, hemorrhagic disease, coagulation disturbance, acute infectious disease, etc), or pregnancy for female participants; (9) Patients enrolled in other clinical trials.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Alveolar bone resorption in different horizontal and vertical levels; | — |
Secondary
| Measure | Time frame |
|---|---|
| Keratinized gingiva reduction;Marginal bone reduction;Incidence of adverse events; | — |
Contacts
Public ContactZhao Ke
Hospital of Stomatology, Sun Yat-sen University
Outcome results
None listed