Reconstructive therapy for the management of peri‐implantitis via submerged guided bone regeneration: A prospective case series
Bibliographic record
Abstract
BACKGROUND: The present case series assesses the response to reconstructive therapy for the management of 2/3-wall peri-implantitis bone defects following submerged-healing guided bone regeneration. MATERIAL AND METHODS: Fifteen consecutive patients with 27 implants presenting peri-implantitis were included. Guided bone regeneration was applied by means of autogenous bone/deproteinized bovine bone mineral grafting mixture and collagen membrane. Patients were assessed at baseline (T0) and at 6 (T1) and 12 months (T2). Clinical and radiographic variables defined the composite success criteria (probing pocket depth [PPD] ≤ 5 mm, no bleeding on probing/suppuration (SUP), no further radiographic bone loss). Patient site-specific comfort was scored using a visual analog scale (VAS). Descriptive statistics was carried out to assess the changes along the study period. Outcomes are reported in terms of mean values (5%-95% percentile values). RESULTS: All the clinical variables substantially changed from T0 through T2. In particular, PPD decreased 3.7 mm (0.7-5.9) from T0 to T2. Likewise, the scores for the modified plaque index (mPI) and modified sulcular bleeding index (mBI) were reduced by 0.5 (-0.5-1.1) and 1.6 (0.4-2.4), respectively. SUP did not display at any implant site at T2 (59.2% implants in 29.2% patients suppurated at T0). Keratinized mucosa decreased 0.6 mm (-0.2-4.4) and while mucosal recession increased 2.5 mm (1.0-4.3). Alike, the radiographic parameters varied significantly from T0 through T2. Infrabony defects were filled by 2.2 mm (0.0-8.6) at T2 and marginal bone loss was reduced by 2.3 mm (-1.1-8.1). The mean VAS score significantly increased from T0 (56.7) through T1 to T2, reaching a score of 96 at T2. At this timepoint, 85.2% of the peri-implantitis lesions were resolved. CONCLUSIONS: The proposed surgical approach followed by submerged healing to reconstruct peri-implant bone defects may offer one therapeutic option for failing dental implants. Given the nature of the present study, its effectiveness in comparison to less invasive treatments needs investigation in randomized controlled trials.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".