A 12-Week Randomized Controlled Trial Comparing a Novel Electric Toothbrush With an Extra Gentle Brush Head to a Manual Toothbrush for Plaque and Gingivitis Reduction.
Bibliographic record
Abstract
OBJECTIVE: This study compared the gingivitis and plaque reduction efficacy of a novel smart-connected oscillating-rotating (O-R) electric toothbrush with micro-vibrations, used in Sensitive mode with an extra gentle ("sensitive") brush head, to the efficacy of a soft manual toothbrush. METHODS: This was a 12-week, examiner-blind, two-treatment, parallel-group clinical trial with 100 adult subjects (N = 100) having evidence of gingivitis and plaque at baseline. Subjects were randomly assigned to use either the O-R electric rechargeable toothbrush (Oral-B iO with Oral-B Gentle Care brush head) or the soft manual toothbrush (Oral-B Indicator). Gingivitis was assessed with the modified gingival index (MGI) and the gingival bleeding index (GBI). Plaque was assessed with the Rustogi modification of the navy plaque index (RMNPI). Patients were classified as having a "healthy" or "not healthy" gingival case status according to the criteria of the American Academy of Periodontology and the European Federation of Periodontology. Efficacy assessments and oral soft-tissue examinations were conducted before brushing at baseline, week 1, and week 12. The baseline assessment included both pre- and post-brushing plaque evaluations to evaluate single-use plaque removal efficacy. RESULTS: All 100 subjects completed the trial. Subjects had a mean age of 49.1 years; 72% were females. The O-R brush group had a significantly higher percentage of subjects who transitioned from "not healthy" to "healthy" gingival case status than did the manual brush group. Plaque reduction for the O-R brush group was also significantly greater (P ≤ .009) than for the manual brush group for whole mouth, gingival margin, and interproximal region, from day 1 (single use) through 12 weeks. Both brushes were well tolerated. CONCLUSION: The novel O-R toothbrush with micro-vibrations used in Sensitive mode with an extra gentle brush head provided significantly greater gingivitis and plaque reduction than did a manual toothbrush over 12 weeks.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.007 | 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".