missing tooth
Conditions
Interventions
Group B: The thickness of the bone wall on the lip side of the extraction socket is>1mm, and the width of the jumping gap is less than 2mm:
Group D: The thickness of the bone wall on the lip side of the extraction socket is less than 1mm, and the width of the jumping gap is less than 2mm:NA
Group A: The thickness of the bone wall on the lip side of the extraction socket is>1mm, and the width of the jumping gap is>2mm:NA
Group C: The thickness of the bone wall on the lip side of the extraction socket is less than 1mm, and the width of the jumping gap is more than 2mm:NA
Sponsors
Zhejiang Provincial People's Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. Adult patients, age >=18 years old 2. patients with complete cone-beam computed tomography ( CBCT ) scan data: (1) T0 (preoperative), (2) T1 (after immediate implantation), (3) T2 (1-2 years after immediate implantation), and (4) T3 (3-5 years after immediate implantation) 3. the patient receives an immediate implant in the extraction socket with a parallel crown restoration; 4. during the follow-up period, the results of the overall treatment and restoration satisfaction questionnaire can be provided Translated with DeepL.com (free version);
Exclusion criteria
Exclusion criteria: 1. patients with half or full mouth implant restorations; 2. patients with missing or unclear CBCT images and the presence of artifacts affecting data measurement; 3. patients with failed implant dislodgement.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| T2 and T3 time nodes, thickness change value of alveolar/palatal bone wall at 2mm, 4mm and 6mm below the implant shoulder on the flat implant shoulder; percentage reduction in relativ;Relative Volume Reductio; | — |
Secondary
| Measure | Time frame |
|---|---|
| Changes in the height of the ridge crest to the shoulder platform of the implant;marginal bone resorption;patient satisfaction; | — |
Countries
China
Contacts
Public ContactYude Ding
Zhejiang Provincial People's Hospital
Outcome results
None listed