Posterior dentition defect ,periodontitis
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: (1) 1-2 teeth loss in posterior region that need for dental implants restoration, and patients' aged =18 years; (2) CBCT examination shows that the width of buccal-lingual bone in premolar area is 4-5 mm, in molar area is 4-6 mm, and the vertical bone height is more than 8 mm. TiZr implants with narrow diameter (3.3mm in premolar region, 3.3/4,1mm in molar region) can be applicated without bone grafting.
Exclusion criteria
Exclusion criteria: (1) Presence of any local or systemic diseases that might contraindicate the treatment; (2) Heavy smoking (>10 Sticks / day) and alcoholics; (3) Fasting blood glucose > 7mmol/L, or glycosylated hemoglobin > 7.5%; (4) Presence of bad oral habits such as clenching teeth and bruxism; (5) Can not be reviewed on time; (6) Refuse to participate in this clinical study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| survival rate;success rate;peri-implant marginal bone level; | — |
Secondary
| Measure | Time frame |
|---|---|
| Probing depth;Bleeding index;Plaque index;Complication rate;Postoperative reaction;Width of keratinized gingiva,; | — |
Countries
China
Contacts
Department of Periodontology, Peking University Hospital of Stomatology