Effect of dental tool surface texture and material on static friction with a wet gloved fingertip

Journal of Biomechanics
Charles LarocheDavid Rempel

Abstract

Hand injuries are an important cause of pain and disability among dentists and dental hygienists and may be due to the high pinch forces involved in periodontal work. The pinch forces required to perform scaling may be reduced by increasing the friction between the tool and fingers. The purpose of this study was to determine whether modifying the tool material, surface texture, or glove type altered the coefficient of static friction for a wet gloved finger. Seven tools with varying surface topography were machined from 13 mm diameter stainless steel and Delrin and mounted to a 6-component force plate. The textures tested were a fine, medium and coarse diamond knurled pattern and a medium and fine annular pattern (concentric rings). Thirteen subjects pulled their gloved, wet thumb pad along the long axis of the tool while maintaining a normal force of 40 N. Latex and nitrile gloves were tested. The coefficient of static friction was calculated from the shear force history. The mean coefficients of static friction ranged from 0.20 to 0.65. The coefficient of static friction was higher for a smooth tool of Delrin than one of stainless steel. Differences in the coefficient of static friction were observed between the coarse and me...Continue Reading

References

Aug 1, 1993·The Journal of the American Dental Association·J W StockstillR Hruska
Dec 1, 1995·Ergonomics·L J Frederick, T J Armstrong
Sep 1, 1996·Journal of Dentistry·A D Roberts, C A Brackley
Jan 1, 1997·The Journal of Hand Surgery·P J BonzaniM G Mangieri
Apr 12, 1997·British Dental Journal·F J BurkeR Freeman
Dec 24, 1997·Scandinavian Journal of Work, Environment & Health·Y RoquelaureD Penneau-Fontbonne
Sep 5, 2002·American Journal of Industrial Medicine·Dan AntonThomas Cook
May 2, 2003·Journal of Motor Behavior·Martine A Gilles, Alan M Wing
Jan 4, 2007·Journal of Periodontology·Hui DongDavid Rempel

❮ Previous
Next ❯

Citations

May 25, 2010·Ergonomics·Mehmet UygurSlobodan Jaric
Jul 17, 2012·Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists·Na Jin Seo, Leah R Enders
Feb 3, 2016·Journal of Physical Therapy Science·Hyun-Suk ParkSeung Namkoong
Oct 21, 2006·Journal of Biomechanics·Alfredo VillanuevaDavid Rempel

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.