Long‐Term Bone Height Changes After Sinus Floor Elevation With Maxillary or Mandibular Bone Grafts: A Radiological Study
Bibliographic record
Abstract
BACKGROUND: This retrospective study aimed to assess the impact of maxillary and mandibular autogenous bone grafts on maxillary bone height in patients who underwent maxillary sinus floor elevation (MSFE). METHODS: The study involved 92 patients, divided into two groups: 37 patients receiving maxillary bone grafts for MSFE and 55 patients receiving mandibular bone grafts for MSFE. Bone height after MSFE was measured on panoramic radiographs up to 60 months postoperatively, comparing different positions and situations. RESULTS: In general, both maxillary and mandibular bone grafts resulted in an increase in bone height directly after the MSFE procedure, followed by a bone height loss over time, with no significant differences between the two groups for gap and free-end positions. However, at distal to implant positions, mandibular bone grafts showed less bone loss. Despite gradual bone height loss, all implants remained covered with bone without exposure or subsequent loss, indicating a successful MSFE procedure. CONCLUSION: This radiologic study showed that over a long-term period there is a similar bone height pattern at dental implant sites and sites distal to implants when maxillary or mandibular bone grafts are used in MSFE.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".