Appraisal of microbial contamination of dental unit water systems and practices of general dental practitioners for risk reduction

Lal, Bansi; Ravindra, Khaiwal; Biswal, Manisha

doi:10.1007/s11356-018-3298-y

Cited by 9 publications

(9 citation statements)

References 21 publications

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“…The microorganisms may form colonies, resulting in biofilm formation in the tubing wall of DUWLS (9). Additionally, concerns were raised about the health risks posed by the contaminated water in the DUWLS, even before the pandemic (10,11). A significant quantity of microorganisms was detected in the sample water collected from the DUWLS, indicating that the water used during dental procedures was not sterile (12).…”

Section: Research Toolmentioning

confidence: 99%

Knowledge and Attitude towards Dental Unit Waterline System Decontamination among Undergraduate and Postgraduate Dental Students in Universiti Sains Malaysia

Azhar¹,

Adnan²,

Rahman³

2022

MJMHS

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Introduction: Dental unit waterline system (DUWLS) decontamination is an important infection control in dental practice. This study aimed to determine knowledge and attitude towards DUWLS decontamination and its associated factors among undergraduate and postgraduate dental students in Universiti Sains Malaysia. Methods: A cross-sectional study was conducted using a validated questionnaire administered online using Google Forms to assess the knowledge and attitude of dental students towards DUWLS decontamination. Descriptive and inferential statistics using independent t-test, Pearson, and Spearman correlation were carried out using SPSS version 24.0. Results: A total of 169 dental students participated in the study, and the majority were female (71.6%) and Malay (59.2%). The mean (SD) age was 23.2 (0.93) and 34.4 (2.65), for the undergraduates and postgraduates, respectively. The mean (SD) knowledge scores for the undergraduates and postgraduates were 11.6 (4.23) and 18.0 (2.82), respectively, whereas the mean attitude scores were 51.3 (7.86) and 54.6 (4.74), respectively. The postgraduates had significantly higher mean knowledge and attitude scores than the undergraduates (p<0.001). The significant factors associated with the undergraduates’ knowledge were received information and guidance and their personal experience in managing DUWLS (p<0.05). However, only received information on DUWLS was significantly associated with the postgraduate’s knowledge score (p=0.011). Age factor had a significant association with the attitude score among the postgraduates (p=0.014). Conclusion: The knowledge regarding DUWLS decontamination was relatively moderate in both groups. However, both groups showed a favourable attitude towards DUWLS decontamination. Significantly higher knowledge and attitude scores were presented among the postgraduates than the undergraduates.

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Section: Research Toolmentioning

confidence: 99%

Knowledge and Attitude towards Dental Unit Waterline System Decontamination among Undergraduate and Postgraduate Dental Students in Universiti Sains Malaysia

Azhar¹,

Adnan²,

Rahman³

2022

MJMHS

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“…Additionally, the cup position, the adequacy of the quantity of the water supply, and the water supply speed are important. Furthermore, water purification and wastewater treatment facilities are essential for a pleasant environment and the prevention of cross infection [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Satisfaction Factors with a Dental Unit Chair System in South Korea: A Dentist’s Perspective

2022

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This study aimed to survey users’ satisfaction with a dental unit chair in order to highlight the elements affecting the dentist’s satisfaction. The questionnaire items were drawn up with seven components that constitute a dental unit chair, including the light, patient seat, foot controller, water fountain and cuspidor, monitor, bracket table and controller, and dentist chair. With these questionnaire elements, a pilot experiment was conducted to test the reliability, and reliability analysis was conducted. The scale reliability was checked using Cronbach’s alpha coefficient. Bartlett’s test of sphericity, the Kaiser-Meyer-Olkin (KMO) measure, and factor analysis were performed to test whether the items would constitute appropriate questionnaire items for the survey. The survey was conducted with 26 dentists with more than three years of clinical experience. A correlation analysis was conducted using Pearson’s correlation coefficient (PCC) (α = 0.05) to analyze the impact of the factors on the overall satisfaction with the dental unit chair. The items that were strongly correlated with the overall satisfaction score of the dental unit chair were the design and appearance quality of the dental unit chair (PCC = 0.781), its maintenance (PCC = 0.784), and the overall satisfaction with the water fountain and cuspidor (PCC = 0.703) (p < 0.05). Most of the questionnaire items could affect the overall satisfaction with the dental unit chair. Additionally, because the design and appearance quality, maintenance, and overall satisfaction with the water fountain and cuspidor may have the greatest impact on the overall satisfaction with the dental unit chair, the improvement of these elements may bring about the enhancement of the overall satisfaction.

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“…Standard precautions should be undertaken to monitor and maintain clean dental unit waterlines with <500 colony-forming units (CFU) per milliliter as recommended by the CDC [ 13 ]. Suggested measures include removal of retracted materials from rotary and ultrasonic instruments as well as air-water syringes, regular disinfection of the suction lines and DWL to remove bacterial biofilm, and use of sterile water to perform procedures [ 13 , 23 – 25 ]. The National Guidelines for the Control of Legionellosis in Ireland recommends undertaking of Legionella annual assessment on the risk of Legionella infection from DWL [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

“…A laxity in the compliance to infection control and preventive measures by some DHCP has been reported all over the world; hence, evaluation of infection control practices and associated factors is worthwhile [ 23 , 31 – 34 ]. Furthermore, occasional disease outbreaks and pandemics justify review of routine guidelines as well as issuing updates and promoting stringent adherence in order to protect the DHCP and their patients.…”

Section: Introductionmentioning

confidence: 99%

Infection Control Practices Among Private Practicing Dentists in Nairobi During the Pre-coronavirus Disease 2019 Period

Otieno

Kihara

Mua

2020

Front. Oral. Health

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Background: Cross-infection control is a dynamic field that requires frequent updates due to emerging diseases, advancement in technology, and scientific knowledge. Despite wide publication of guidelines, a laxity in compliance to the standard precautions for infection control by dental health-care personnel (DHCP) has been reported globally. Therefore, there is need to review previous shortcomings in order to adequately secure dental practices during the coronavirus disease 2019 (COVID-19) pandemic. The aim of the study was to determine knowledge and infection control practices by dentists in private practices. The study was done a few months before the first COVID-19 case was confirmed in Kenya.Materials and Methods: The study design was a descriptive cross-sectional study that was carried out in selected private dental clinics located in Nairobi. Data were collected using an interviewer-administered questionnaire. Convenience sampling method was utilized, while data were analyzed using SPSS 20.0.0.0.Results: A total of 71 private dentists participated in the study. Their mean age was 38 years with an age range of 27–55 years. Almost all (70, 98.6%) the dentists were able to define cross infection correctly. Majority (62, 87.3%) correctly differentiated between sterilization and disinfection, while 9 (12.7%) had difficulties. Most (68, 95.8%) of the respondents were aware of the standard precautions for cross-infection control. All participants used face masks and gloves. About half of them (38, 54%) practiced hand washing after removal of gloves and 31 (43.7%) before and after wearing of gloves, while 2 (2.8%) washed hands only before wearing gloves. Only 31 (42.3%) and 26 (36.6%) participants reported use of rubber dam isolation and impervious barrier, respectively. All the dentists reported disposal of sharps into especially labeled containers, while about half reported use of disposable suction traps and amalgam separators.Conclusion: The dentists had a good knowledge on various aspects of infection control measures that were studied. Use of basic personal protective equipment was widely practiced. There were irregularities in hand hygiene, use of rubber dam, surface barriers, and waste management. The work highlights that many dentists were unprepared to manage infectious risk during the COVID-19 outbreak, which justified the closure of the dental facilities. Development of strategies to promote adequate and safe practice is highly recommended.

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Appraisal of microbial contamination of dental unit water systems and practices of general dental practitioners for risk reduction

Cited by 9 publications

References 21 publications

Knowledge and Attitude towards Dental Unit Waterline System Decontamination among Undergraduate and Postgraduate Dental Students in Universiti Sains Malaysia

Knowledge and Attitude towards Dental Unit Waterline System Decontamination among Undergraduate and Postgraduate Dental Students in Universiti Sains Malaysia

Satisfaction Factors with a Dental Unit Chair System in South Korea: A Dentist’s Perspective

Infection Control Practices Among Private Practicing Dentists in Nairobi During the Pre-coronavirus Disease 2019 Period

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