1676Salivary Levels of Streptococcus mutans in Individuals with Temporomandibular Disorders
Bibliographic record
Abstract
Background. Individuals with temporomandibular disorders (TMD) may experience higher levels of psychological stress and chronic pain, as well as some biochemical and immunological salivary changes; however, microbiological parameters related to dental caries have not yet been investigated in this population. The aim was to evaluate whether TMD patients present higher levels of Streptococcus mutans in saliva. Methods. Cross-sectional study which included 39 patients with TMD, selected according to the Fonseca's questionnaire and the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD), and other 33 individuals with no TMD symptoms (control group). The volunteers were classified according to their caries risk in low, intermediate or high risk. Unstimulated saliva samples were collected from both TMD and the control group on the morning shift from 9 to 11am, at least one hour after the last meal. Aliquots of 100mL of each saliva sample were diluted, plated on Mitis Salivarius Agar containing Bacitracin, and then they were incubated (5% CO2, 37°C, 48 hours) in order to quantify S. mutans levels (CFU/mL); the colonies growth was confirmed by polymerase chain reaction (PCR). Results. When the Student's t-test was applied, there was no statistically significant difference between the TMD and the control group (p > 0.05). Conclusion. Individuals with TMD did not show higher levels of S. mutans in saliva than the control group. Further studies investigating such a relationship should be carried out. Disclosures. L. V. Galvão-Moreira, FAPEMA: Grant Investigator, Research grant and Research support C. Monteiro De Andrade, FAPEMA: Grant Investigator, Research grant P. D. M. Silva Figueiredo, FAPEMA: Grant Investigator, Research support L. S. Branco-De-Almeida, FAPEMA: Grant Investigator, Research support
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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) | 0.004 | 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".