The effect of pumicing on the<i>in vivo</i>use of a resin modified glass poly(alkenoate) cement and a conventional no-mix composite for bonding orthodontic brackets
Bibliographic record
Abstract
OBJECTIVE: Pumicing of the enamel prior to direct bonding with conventional diacrylate bonding agents has been shown to be unnecessary. It is not known whether this is also the case with resin-modified glass poly(alkenoate) cements. The aims of this study were two-fold: (a). to determine whether pumicing prior to bonding has an effect on the in vivo failure of brackets bonded with either Right-On or Fuji II LC; (b). to determine whether there is a difference in the in vivo failure of brackets bonded with either Right-On or Fuji II LC. Design A cross-mouth controlled clinical trial was performed on a total of 60 patients in which the variables under test were pumicing or not pumicing of the enamel prior to bonding using two different bonding agents. MAIN OUTCOME MEASURES: The measurement variable was bond failure over an 18-month period. RESULTS AND CONCLUSIONS: Prior pumicing of the enamel has no effect on in vivo failure when using either a conventional diacrylate or a resin modified glass poly(alkenoate) cement. A greater number of bonds failed with the resin-modified glass poly(alkenoate) cement.
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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 | 0.002 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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".