Rag wheel

A chain wheel; a sprocket wheel
A polishing wheel made of disks of cloth clamped together on a mandrel.

See also: Rag, Rag

References in periodicals archive ?
Methodology: Five samples of pumice powder, pumice slurry, rag wheel and sterile gauze swab rubbed on newly polished acrylic dentures were collected from four randomly selected dental laboratories in sterile containers.
Results: All specimens collected were contaminated either by bacteria or fungi and both pumice powder and rag wheel specimens were contaminated by 80% of gram positive bacilli and 40% of fungus Aspergillus species.
Conclusions: Improved sterile techniques in handling dental prosthesis can substantially reduce cross contamination that may occur from the pumice and rag wheel, thereby diminishing the patient's exposure to potentially pathogenic bacteria.
Key Words: Microbial contamination, Dental laboratories, Dental pumice, Dental slurry, Rag wheel, Dental prosthesis.
Table 1: Bacterial and fungal contamination of pumice, pumice powder, slurry rag wheel and polished dentures collected from different dental laboratories (MSSA).
Table 1 show the results of microbial contamination of sample and suggest that both pumice powder and rag wheel specimens were contaminated by 80% of gram positive bacilli and 40% of fungus Aspergillus species.
The results of microbial culture presented in this paper are based on the pilot experimental study to determine the contamination level of pumice powder, slurry, rag wheel and acrylic denture.
The pumice slurry is generally not changed frequently and the use of same rag wheel in dental laboratories for polishing of dentures may allow the growth of bacteria and fungi.
7 Results of present study revealed that Grampositive bacilli and fungi were present in the samples of pumice powder, rag wheel and polished dentures.