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The goal of this observational study is to evaluate the post-extraction hard and soft tissue dimension changes in patients requiring consecutive extractions and unassisted socket healing in the anterior maxilla. The main questions it aims to answer are:
Participants will undergo consecutive (two) extractions and will be evaluated after subsequent unassisted socket healing for 8 weeks.
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| Measure | Description | Time Frame |
|---|---|---|
| Bone level change from baseline | Measured in millimeters using segmented surface model superimpositions. Changes in bone loss between baseline and an 8 week healing period using CBCT. From the Digital Imaging and Communications in Medicine (DICOM) files two surface mesh models were generated, which were superimposed and the changes were subsequently analyzed. | Baseline and at 8 weeks |
| Soft tissue change from baseline | Changes in soft tissue loss at baseline and 8 weeks were analyzed using digital dental impressions acquired from intraoral scans, which were superimposed and the changes were analyzed. | Baseline and at 8 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Correlation between baseline facial bone thickness and dimensional soft tissue alterations during healing at the interalveolar septum. | To measure correlation, the Spearman Rank Correlation Coefficient was calculated. Nonparametric models for longitudinal data were applied to analyze the impact of bone wall phenotype and healing period upon dimensional alterations. | Baseline and at 8 weeks |
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Inclusion Criteria:
Exclusion Criteria:
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The group is selected from the referred patient pool. Age 18 or older. Absence of significant medical conditions. Sites with a need for consecutive (two) teeth extraction in the anterior maxilla.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Xinbo Yu | Contact | 18019409340 | xinboyu@proton.me |
| Name | Affiliation | Role |
|---|---|---|
| Feng Wang | Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University | Principal Investigator |
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