A prospective clinical patient study evaluating the effect of increasing anesthetic volume on inferior alveolar nerve block success rate.
Bibliographic record
Abstract
OBJECTIVE: The purpose of this study was to clinically evaluate an anesthetic technique in which a second cartridge was reloaded in a traditional dental syringe and reinjected at the same site in regard to success rate of the attempted inferior alveolar nerve block. During the same appointment, a computer-controlled delivery system was used on the opposite side of the same patient to administer 2 cartridges as well. Successful anesthesia and time efficiency of the traditional syringe and computer-controlled technique were then evaluated and compared. METHOD AND MATERIALS: Thirty-five subjects between the ages of 18 and 58 years were randomly assigned to both the traditional syringe delivery system using a standardized 2-cartridge reloading and reinjection technique and a computer-controlled system using a technique whereby the second cartridge was reloaded without having to remove the needle from the injection site. Subjects served as their own controls. Successful anesthesia was achieved when all soft tissues innervated by the inferior alveolar and lingual nerves were nonresponsive to painful stimulation with an explorer as evaluated at 3- and 10-minute intervals following final anesthetic administration. The time necessary to reload the second cartridge for each side was measured, as was the time necessary to deliver the second full 1.8-mL cartridge. RESULTS: Two-cartridge delivery with the traditional syringe resulted in a 94.3% success rate at 3 minutes and a 100% success rate at 10 minutes; 2-cartridge delivery with the computer-controlled delivery system resulted in an 80% success rate at 3 minutes and a 91.4% success rate at 10 minutes following final injection. Reloading time for the second cartridge was 11.37 seconds less with the computer-controlled delivery system, but no statistical difference was found between the 2 systems regarding time to deliver the second cartridge. CONCLUSIONS: The results for the 2-cartridge technique with both systems compare favorably with and surpass the accepted 85% success rate reported in the dental literature with only 1 cartridge. The computer-controlled delivery system did not require needle removal and was more time efficient at reloading than the traditional syringe system.
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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 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 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".