green stain

green stain

a deposit, produced by chromogenic bacteria, found on the cervicolabial portions of the teeth, usually in children.
See also: acquired pellicle.

green stain

(grēn stān)
Such discoloration or deposit on the gingival half of the labial surfaces of the maxillary anterior teeth, usually in children. Caused by chromogenic bacteria or orally inhaling dust containing copper and nickel.
References in classic literature ?
She valued the company of those to whom she could come striding disheveled from the nursery in her dressing gown, and with joyful face show a yellow instead of a green stain on baby's napkin, and from whom she could hear reassuring words to the effect that baby was much better.
and I gave it such a hearty kiss that my nose and chin were smudged into one green stain, and still I did not care.
I was standing in the same mysterious tangle of damp little paths that had always been just there; they curled away on either side among the shrubs, with the brown tracks of recent footsteps in the centre of their green stains, just as they did in my day.
She observed green stains of moss on the steps of the terrace.
We used PCR with 5 pL of the DNA extract and previously described primers (2) on a Roche LightCycler 480 (Roche Molecular Systems Inc., Branchburg, NJ, USA) with SYBR Green stain. The PCR target is an ~400-base-pair portion, including the V3-V4 region, of the 16S ribosomal RNA gene.
Too delicious, the green goodness that, if rubbed hard enough on the affected spot, left an equally green stain. And removed the pain.
2003, Eisenman and Casadevall 2012) and xylindein from Chlorociboria species (Robinson and Laks 2010b) are the most well known for their production of black zone lines or green stain, respectively.
The basin was empty, water dried away, leaving a powdery green stain. She perched next to him and watched the swallows wheel and turn, black outlines against a sky in flames.
With the malachite green stain, yeasts were clearly differentiated from oocysts as they took up the stain.
The green stain was the result of an ancient practice that involved placing a silver or gold coin containing bronze in the mouth of the deceased prior to burial for the purpose of paying the boatman for passage across the river of woe.
The chromogen is a two-component system that produces a green stain in the presence of horseradish peroxidase (HRP).