Streptococcus mutans Serotypes in Young Schoolchildren
Bibliographic record
Abstract
The frequency of five Streptococcus mutans serotypes (a, b, c, d and e) was investigated in relation to tooth surface and its caries status in young schoolchildren. In the first study, plaque from the five surfaces of a second deciduous molar in 104 five-year-olds was examined for the presence of S. mutans. In the second study, isolations were made from the occlusals and approximal surfaces of a second deciduous and a first permanent molar in five- to eight-year-olds. The isolates were characterized biochemically, and then serotyped with antigen extracts against whole cell and ‘purified’ cell wall antisera using comparative immunoelectrophoresis. Of the 348 plaque isolates, type c was the prevalent serotype (91.1%). In the first study, a significant relation was found between the occurrence of type c and caries on the occlusal surfaces. However, the second study showed type c to be evenly distributed on the occlusals and approximal surfaces irrespective of caries status. This leaves open the possibility that certain types may be commensals.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 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) | 0.001 | 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".