Please use this identifier to cite or link to this item:
Title: Vibration exposure and transmissibility on dentist’s anatomy: A study of micro motors and air-turbines
Authors: Banga, Harish Kumar
Goel, Pankaj
Kumar, Raman
Kumar, Vikas
Kalra, Parveen
Singh, Sehijpal
Singh, Sunpreet 
Prakash, Chander
Pruncu, Catalin
Keywords: Air-turbine hand piece
Grip force
Micro motor hand piece
Vibration exposure
Vibration transmissibility
Issue Date: 13-Apr-2021
Publisher: MDPI AG
Citation: Banga, Harish Kumar, Goel, Pankaj, Kumar, Raman, Kumar, Vikas, Kalra, Parveen, Singh, Sehijpal, Singh, Sunpreet, Prakash, Chander, Pruncu, Catalin (2021-04-13). Vibration exposure and transmissibility on dentist’s anatomy: A study of micro motors and air-turbines. International Journal of Environmental Research and Public Health 18 (8) : 4084. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: The use of dental hand pieces endanger dentists to vibration exposure as they are subjected to very high amplitude and vibration frequency. This paper has envisaged a comparative analysis of vibration amplitudes and transmissibility during idling and drilling with micro motor (MM) and air-turbine (AT) hand pieces. The study aims to identify the mean difference in vibration amplitudes during idling, explore different grasp forces while drilling with irrigant injection by the dentist, and various vibration transmission of these hand pieces. The study utilized 22 separate frequency resonances on two new and eight used MMs and two new and eight used ATs of different brands by observing the investigator at 16 different dentist clinics. The study adopted a descriptive research design with non–probability sampling techniques for selecting dentists and hand pieces. Statistical methods like Levene Test of Homogeneity, Welch ANOVA, independent t-test, and Games–Howell test were utilized with SPSS version 22 and MS-Excel. The results reveal that vibration amplitudes and vibration transmissibility when measured at position 2 are higher than in another position 1. Vibrations during idling for used MMs are more than AT hand pieces, and the used MM (MUD) and used AT (AUA) hand pieces differ due to their obsolescence and over-usage. Vibration amplitudes increase every time with the tightening of grasping of the hand piece. Vibration amplitudes for each grasping style of MM hand piece differ from all other grasping styles of AT hand pieces. Routine exposure to consistent vibrations has ill physical, mental, and psychological effects on dentists. The used hand pieces more hazardous as compared to newer ones. The study suggests that these hand pieces must be replaced periodically, sufficient to break between two operations, especially after every hand piece usage. Hence, the present research work can be further extended by creating some control groups among dentists and then studying the vibration amplitude exposure of various dental hand pieces and subsequent transmissibility to their body parts. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Source Title: International Journal of Environmental Research and Public Health
ISSN: 1661-7827
DOI: 10.3390/ijerph18084084
Rights: Attribution 4.0 International
Appears in Collections:Elements
Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
10_3390_ijerph18084084.pdf1.53 MBAdobe PDF



Google ScholarTM



This item is licensed under a Creative Commons License Creative Commons