Occupational health problems of dentists in the United Arab Emirates

Occupational noise-induced hearing loss among dental personnel: a scoping review

Introduction Dental personnel are being exposed to noisy equipment on a daily basis and there are indications that dental professionals are at a higher risk of developing occupational noise-induced hearing loss (NIHL). Therefore, this study aims to assess the available research on NIHL among dental professionals.Methods A total of 452 publications were identified through searches on PubMed and Web of Science. These studies were screened on title and abstract for studies that investigated NIHL among dental professionals using objective or subjective parameters for hearing loss. The remaining publications were then searched for relevant data, such as research type, parameters used for measuring hearing loss and authors' conclusions.Results In total, 28 publications were finally included in the selection. Of this selection, 23 used objective criteria for NIHL, three used subjective criteria and two used both. From the 12 studies with objective measurements that also included a control group in their studies, eight reported a significant higher hearing loss among dental personnel than in the control groups. From the 13 studies with objective measurement without a control group, seven reported significant hearing loss among dental personnel. All five studies with subjective measurements reported significant hearing loss in dental personnel.Conclusions Hearing loss seems to be more prevalent among dental personnel than in most control groups.

Prevalence of Occupational Contact Dermatitis Among Dental Personnel Using the Nordic Occupational Skin Questionnaire-2002: A Prospective Cross-Sectional Study

BACKGROUND

Occupational skin disease (OSD), such as contact dermatitis, is widespread among dental professionals; however, reports regarding its prevalence have inconsistent findings and methodology. Therefore, we conducted a cross-sectional survey using a self-reported questionnaire to estimate the prevalence of work-related and occupational exposure-induced skin diseases.

METHODOLOGY

A self-administered questionnaire, based on the validated Nordic Occupational Skin Questionnaire-2002, was distributed to 15 dental clinics in Israel in the first half of 2022. The questionnaire included questions about the occupation, exposure, and history of atopic disease, dry skin, and hand/arm and wrist eczema, as well as participant demographics.

RESULTS

Overall, 312 dental professionals completed the questionnaires. Response rate was 80%. The lifetime prevalence of self-reported skin symptoms was 19.23%. Significant risk factors included exposure to metal objects, odds ratio (OR): 2.43, 95% confidence interval (CI): [1.02, 5.78]; p < .05, dry skin (OR: 3.54, 95% CI: [1.93, 6.5]; p < .001), itching when sweating (OR: 2.89, 95% CI: [1.39, 6]; p < .05), contact urticaria (OR: 10.67, 95% CI: [4.46, 25.49]; p < .001), hay fever (OR: 2.25, 95% CI: [1.14, 4.42]; p < .05), allergic symptoms (OR; 2.33, 95% CI: [1.18, 4.58]; p < .05), and asthma (OR: 4.8, 95% CI: [2.17, 10.36]; p < .001).

CONCLUSIONS

This is the first study to use the NOSQ-2002 among dental professionals. Our study provides a better understanding of the prevalence and consequences of OSDs among dental personnel by utilizing the validated tool NOSQ-2002.

Self-Reported Allergic Occupational Contact Dermatitis among Dental Healthcare Professionals in United Arab Emirates -A Cross Sectional Study

In dentistry, occupational contact dermatitis may affect dental professionals along with technicians, nurses, and patients. Changes to dental practice in recent years have altered the reported frequencies of allergens causing contact dermatitis in both dental professionals and dental patients. In the current cross-sectional study, we used a structured questionnaire and clinical examinations to examine the prevalence of self-reported hand eczema among United Arab Emirates (UAE). The relationship between subjective skin discomfort and latex, composite/bonding, or other dental materials also was explored. A structured questionnaire was designed to analyze the prevalence of skin conditions among dental professionals and study its implication in gender, occupation, and age groups. The questionnaire included information about skin symptoms, atopy, occupational experience, and other background factors like respiratory symptoms, work history and methods, and exposure at work. It was distributed to 550 randomly selected dental healthcare professionals. Out of 550 dental healthcare workers contacted, 434 responded giving a response rate of 79%. The prevalence of dry and rough skin on the hands was highest (45%). There was a total of 29 cases of allergic contact dermatitis, 15 cases of contact urticaria, 12 cases of irritating contact dermatitis, and 1 incidence of onychomycosis among the 100 dental healthcare professionals who reported having dermatitis on their hands, forearms, or faces due to their daily dental chores. Rubber chemicals and natural rubber latex (NRL) in protective gloves used by dentists, as well as dental-restorative plastic materials (methylacrylates), were the most common causes of allergy. Dry skin and hand eczema were more common among dental healthcare professionals. Plastic gloves or NRL gloves with a low protein content are recommended for dental work. Skin exposure to methylacrylates or latex should be avoided.

Tinnitus Prevalence and Associated Factors among Dental Clinicians in the United Arab Emirates

Dental clinicians are at increased risk for developing tinnitus due to exposure to high levels of occupational noise. This study aimed to determine tinnitus prevalence and associated factors among dental clinicians. Interviews were conducted with 150 randomly selected dental clinicians using a questionnaire. Noise levels were measured at three points of time at the operating area. Tinnitus was reported in 19.33% of the participants. The average noise level was significantly higher among participants with tinnitus compared to those without the condition. More participants complained of intermittent tinnitus and the rest had the constant type, with the latter being significantly more bothersome. The weekly average time of using high-speed handpieces, suction and electric handpieces, age and experience had a significant effect on the presence of tinnitus. Only 2.7% of the participants reported the use of a hearing protection device. Tinnitus is a common finding among dental clinicians especially those with higher levels of occupational noise and more frequent use of noise-generating equipment. Knowledge of tinnitus prevalence aids in realizing the extent of its impact and making informed decisions. These results call for improved awareness of the negative impact of clinically-generated noise and emphasize the importance of preventive measures and periodic audiometry exams.

Musculoskeletal System Problems in Dental Practitioners

Aim: In this study, it was aimed to evaluate the musculoskeletal system problems encountered by dentists working in an oral and dental health center in Kocaeli, Turkey. Methods: This cross-sectional study including 74 dental practitioners was carried out in 4 Oral and Dental Health Centers in Kocaeli between 15-31 January 2020. A questionnaire was used for data collection. The questionnaire consisted of two sections. The first section concerned the sociodemographic characteristics of the subjects whereas the second section consisted of the Extended Nordic Musculoskeletal Questionnaire. Descriptive statistics are presented as mean (±) standard deviation, frequency distribution, and percentage. The Chi-square test was used to compare categorical variables. Results: In the study, 70.3% of the subjects were female, 40.5% were aged over 41 years of age, and the average age was 38.1±9.4 years. It was determined that 78.4% of the dental practitioners reported pain in their necks, 50.0% in their shoulders, 67.6% in their backs, 63.5% in wrists and hands, and 68.9% in their lower backs. Moreover, the participants reported experiencing pain severe enough to affect their personal or work lives within the last 12 months in their necks (44.6%), shoulders (23.0%), backs (33.8%), hands and wrists (41.9%), and lower backs (43.2%). Conclusion: In the study, it was found that dentists have a high frequency of musculoskeletal problems. It is recommended that dentists work in a seated position and exercise between studies. Keywords: dentists, musculoskeletal diseases, ergonomics

A 19-Year Study of Dental Needlestick and Sharps Injuries in Japan

BACKGROUND

Needlestick and sharps injuries (NSIs) are serious problems for dental health care workers (DHCWs) because they are at risk for occupational blood-borne infections. In this study, risk factors for NSIs in DHCWs at Tohoku University Hospital (TUH) in Japan over 19 years were analysed.

METHODS

NSI data of DHCWs at TUH from April 2002 to March 2020 were collected from the Exposure Prevention Information Network (EPINet) and statistically analysed.

RESULTS

A total of 195 NSIs occurred during the 19-year study period. Approximately 58.5% of NSIs occurred in DHCWs with less than 5 years of experience. Injection needles were the most frequent cause of NSIs (19.0%) followed by suture needles (13.3%) and ultrasonic scaler chips (12.8%). Needle injuries occurred mainly on the left hand, whereas ultrasonic scaler chip and bur injuries occurred on the right hand and other body parts whilst DHCWs were placing the instruments back on the dental unit hanging holder without removing the sharps. NSIs from other instruments primarily occurred on both hands and foot insteps during cleanup. No case of occupational blood-borne infection caused by NSIs was observed during the study period at TUH.

CONCLUSIONS

NSIs occurred in DHCWs with less experience, and there were associations between the instruments, timing of use, and NSI site. EPINet was considered a valuable tool for monitoring NSIs in order to develop future strategies for minimising NSIs.

Work-related musculoskeletal disorders among dental staff in Armed Force Hospital in Dhahran, Saudi Arabia

BACKGROUND

Work related musculoskeletal disorders' (WMSDs) are the most important public health challenge among dental staff. The objective of study was to ascertain the prevalence and risk factors for work related musculoskeletal disorder among dental staff in Dhahran, Saudi Arabia.

METHODS

It is a cross sectional study and 130 dental staff with at least 1 year of working experience were random selected from Armed Forced Hospital. The self-administered validated and structured Standardized Nordic questionnaire was used. Logistic regression analysis was done to determine the association of risk factors with WMSD.

RESULTS

the results of the present study revealed that there was a high incidence of MSDs in neck, shoulder, and lower back pain among dental personnel (72.6%). The common risk factors which contributed to WMSD were more than 5 year of experience (AOR 1.19(1.03-2.82)), Saudi nationality (AOR 4.88 (1.27 - 18.72)), working more than 12 hours (AOR 3.115 (1.258 7.578)) and resident doctors (AOR 1.14 (1.02 - 1.94)).

CONCLUSION

The study conclude work related MSD were common with high rate of incidence among dental staff . There is need to make a policy which will reduce the burden of WMSD among dental staff.

Work-related Musculoskeletal Disorders Among Dental Staff in Armed Force Hospital in Dhahran, Saudi Arabia

Background

Work-related musculoskeletal disorder (WMSD) is the most important public health challenge among dental staff. The objective of this study is to ascertain the prevalence and associated risk factors, which related to WMSD among dental staff in Dhahran, Saudi Arabia.

Methods

It is a cross-sectional study and 130 dental staff were selected through simple random sampling from in Armed Forced Hospital with at least 1 year of working experience. The self-administered validated and structured Standardized Nordic questionnaire was used. Logistic regression analysis was done to determine the association of risk factors with WMSD.

Results

The results of the present study revealed that there was a high incidence of MSDs in the neck, shoulder, and lower back pain among dental personnel (72.6%). The common risk factors that contributed to WMSD were more than 5 years of experience (AOR 1.19 (1.03-2.82)), Saudi nationality (AOR 4.88 (1.27-18.72)), working more than 12 h (AOR 3.115 (1.258-7.578)) and resident doctors (AOR 1.14 (1.02-1.94)).

Conclusions

The study concludes that WMSDs were a common and high rate of incidence among dental staff. There is a need to make a policy that will reduce the burden of WMSD among dental staff.

Comprehensive Profiling through a Cross-sectional Assessment on the Awareness about Eye Protection Safety among Dental Professionals in Saudi Arabia

PURPOSE

Eye injuries account for 3-4% of all occupational injuries; however, dental practitioners are at relatively high risk of occupational ocular incidents during their practices. The study aims to assess the attitude, knowledge, and awareness towards the safety of the eye; measures undertaken for its protection and its probable variations regarding age, gender, qualification, and years of practice among dental practitioners in Saudi Arabia (SA).

METHODS

In this cross-sectional study, 348 dental practitioners and dental staff from SA participated. Besides demography, information regarding their knowledge, attitude, perception towards eye safety protection, and measures followed was collected through a 28-questions structured questionnaire posted online.

RESULTS

Among the participants, 47.4% were male, 52.6% female, and 55% dentists. The data revealed that about 47% of the dentists were following clinical safety programs in their practice, 68% were employing a very high-level eye protection measure, whereas about 40% followed these measures just before starting the procedure, yet nearly 38% of the dentists faced ocular injury. Female practitioners had the highest level of knowledge on eye safety and protection. Multivariate binary logistic regression analysis showed that the awareness of the need for eye protection and inclusion of safety-glasses for UV protection were significant independent determinants of eye-injury incidence among dental professionals.

CONCLUSION

This survey comprehensively profiles dental professionals' awareness and attitude about safety measures for their eye protection in their practice. Thus, the outcome of the study may pave the way for practicing an evidence-based safety approach towards the prevention of occupational ocular incidents in SA.

Prevalence of postural musculoskeletal symptoms among dental students in United Arab Emirates

Background

The purpose of the present study was to determine the prevalence of neck, shoulder, and low-back pain and to examine factors associated with musculoskeletal pain (MSP) among dental students at Ajman University and Ras Al Khaimah College of Dental Sciences in United Arab Emirates (UAE).

Method

A cross-sectional study was conducted among dental students using an online questionnaire, which was a modified version of the Standardized Nordic questionnaire, focused on neck, shoulder and low-back pain in the past week and the past year.

Results

A total of two hundred and two dental students (out of 368) responded to the questionnaire. The majority were female 75.2%. The prevalence of MSP in at least one body site in the past week, and in the past year was 48.5 and 68.3% respectively. The factors significantly associated with MSP in at least one body site at any time were having history of trauma (P = 0.009), lack of exercise (P = 0.001), longer clinical sessions (P = 0.000), and higher BMI (P = 0.010).

Conclusion

The present study indicates that the prevalence of MSP among dental students in the UAE is high. Careful attention from dental colleges is needed to increase students’ awareness of this problem. This study contributed to better understanding of MSP among dental professionals.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12891-020-03887-x.

Prevalence of self-reported musculoskeletal disorders of the hand and associated conducted therapy approaches among dentists and dental assistants in Germany

Background

Dental professionals are subjected to higher risks for musculoskeletal disorders (MSDs) than other professional groups, especially the hand region. This study aims to investigate the prevalence of hand complaints among dentists (Ds) and dental assistants (DAs) and examines applied therapies.

Methods

For this purpose, an online questionnaire analysed 389 Ds (240female/149male) and 406 DAs (401female/5male) working in Germany. The self-reported data of the two occupational groups were compared with regard to the topics examined. The questionnaire was based on the Nordic Questionnaire (self-reported lifetime, 12-month and 7-day MSDs prevalence of the hand, the conducted therapy and its success), additional occupational and sociodemographic questions as well as questions about specific medical conditions.

Results

30.8% of Ds affirmed MSDs in the hand at any time in their lives, 20.3% in the last twelve months and 9.5% in the last seven days. Among DAs, 42.6% reported a prevalence of MSDs in the hand at any time in their lives, 31.8% in the last 12 months and 15.3% in the last seven days. 37.5% of the Ds and 28.3% of the DAs stated that they had certain treatments. For both, Ds and DAs, physiotherapy was the most frequently chosen form of therapy. 89.7% of Ds and 63.3% of DAs who received therapy reported an improvement of MSDs.

Conclusion

Although the prevalence of MSDs on the hand is higher among DAs than among Ds, the use of therapeutic options and the success of therapy is lower for DAs compared to Ds.

The Effect of Number of Patients Treated, Dental Loupes Usage, Stress, and Exercise on Musculoskeletal Pain among Dentists in Jeddah

Objectives:

The aim of this study was to investigate the prevalence of musculoskeletal pain (MSP) and to explore its potential risk factors among dentists in Jeddah, Saudi Arabia.

Materials and Methods:

A cross-sectional survey of private and government dentists in Jeddah, Saudi Arabia was undertaken between January and December 2018. A self-administered questionnaire was distributed randomly to consenting participants. Descriptive data analysis involved measures of central tendency and percentages, t test, chi-square, and logistic regression analysis were used to evaluate relationships among the variable “having MSP experience after dental work” and other potential predictors among dentists.

Results:

A total of 300 dentists completed the questionnaires. The overall prevalence of MSP was 68%, with back pain as the most frequently reported symptom (54%). The results revealed significant association of MSP with number of patients treated per day, nonuse of dental loupes during dental work, stress, and lack of regular exercise (P < 0.05).

Conclusion:

The prevalence of MSP among dentists in Jeddah is high attributable to poor ergonomics and stress, which further impact the quality of life of practitioners.

Job Satisfaction of U.A.E. Dental Practitioners

Objective  The study aims to analyze job satisfaction among registered clinical dentists in the United Arab Emirates (UAE), and also to explore satisfaction with different work environmental factors and relate them to overall job satisfaction.

Materials and Methods  A survey modified from the American Dental Association version of job satisfaction published in 2013 to 2014, was given to 197 licensed dentists in Dubai and Sharjah cities in the UAE. The questionnaire included four main sections, in addition to the demographic factors questions. All questions were answered using the 5-point Likert scale. The only exception was the comfortability in the working environment which was answered using a 3-point Likert scale.

Statistical Analysis  Categorical data were presented as frequencies and percentages, and data were analyzed using means and standard deviations. Regression analysis was performed with overall job satisfaction as the dependent variable and seven aspects of satisfaction with work and individual characteristics as the independent variables. An α level of 0.05 was used for tests of statistical significance.

Results  The overall job satisfaction of dentists working in the UAE is high compared with other countries. Highest satisfaction was related to the relationship with patients, colleagues, and staff. On the other hand, the least satisfaction was linked to the opportunity for part-time work and benefits package. There were no significant differences between male and female participants regarding all work-related factors apart from autonomy. However, private sector dentists had a higher level of satisfaction compared with the public sector in many work-related factors.

Conclusion  There are various dimensions that collectively influence the level of overall job satisfaction. Difference existing between the levels of job satisfaction among private and public sector dentists and between male and female dentists need to be addressed to increase the level of job satisfaction among UAE dentists and thus improve all dental care system.

Assessment of occupational noise-related hearing impairment among dental health personnel

Objectives

The purpose of the study was to examine hearing thresholds among dental personnel. The secondary aim was to evaluate sound levels among dental equipment that dental personnel are exposed to.

Methods

Two hundred forty‐four dentists, dental technicians, dental assistants, and dental students participated. Sixty‐two participated as a control group. Audiological thresholds for the test groups were compared to the control group. All participants were from Jordan University Hospital. Participants completed a questionnaire in addition to their audiometric testing. Otoscopy, tympanometry, and pure tone audiometry were included in their assessment. Three‐factor ANOVA and t tests were utilized to assess the statistical differences of hearing thresholds among the groups and between the two ears. Pearson correlation test was used to assess the effect of age, experience, and duration of exposure on the degree of hearing loss in the test groups for both ears.

Results

The authors reported statistically significant differences among hearing thresholds between the control group and others. Left hearing thresholds were noted to be significantly poorer in the left versus right ear at 1000, 2000, 4000, and 8000 Hz in dental assistants. The authors also reported a significant relationship between the degree of hearing impairment among dental assistants and the daily duration of exposure to dental occupational noise, followed by age.

Conclusion

Hearing impairment was higher among dental professionals than the control group and especially among dental assistants and technicians. The authors recommended screening guidelines and adapting hearing protection methods for dental professionals and particularly for dental assistants and technicians.

Prevalence of work-related musculoskeletal disorders and ergonomic practice among dentists in Jeddah, Saudi Arabia

Background

Musculoskeletal disorders (MSD) is the second most common cause of disability. MSD due to the occupation are called work-related musculoskeletal disorders (WMSD) and are common among dentists.

Objective

Assess the prevalence of self-reported work-related musculoskeletal disorders (WMSD) and to identify associated ergonomic practice among dentists practicing in Jeddah City, Saudi Arabia.

Methods

Dentists practicing in Jeddah were invited to participate in this cross-sectional study using a self-administered survey. The survey consisted of 20 close-ended questions. The survey included questions regarding demographics, dental practice, general health status, exercising, ergonomic practice, musculoskeletal pain location, the severity of pain using a numeric pain rating scale (0–10), interventions sought, and missed work due to WMSD.

Results

A sample of 234 dentists participated in this study. Prevalence of WMSD was found to be 70%. The most common location for WMSD pain was in the low back (85%) and neck (84.6%). Female dentists and dentists not exercising regularly had an increased risk of WMSD. The prevalence of CTS was 9%, and its risk increased with age and practicing in the private sector. Among the dental specialties, the least to report WMSD or CTS were maxillofacial surgeons and orthodontists. The reported ergonomic practice reached as low as 24%.

Conclusion

Work-related musculoskeletal disorders and inadequate ergonomic practices were common. Ergonomics training intervention programs targeting dentists is suggested as a preventive measure for longer and healthier career lives.

Approach to prevention of musculoskeletal symptoms in dental students: an interventional study

Background:

Work-related musculoskeletal (MS) disorders are very common among dentists due to abnormal positions maintained during their work. There is the need to teach undergraduate students ergonomic procedures to prevent MS pain and disorders.

Methods:

All the students of the School of Dentistry at the University of Trieste were enrolled for the study (No. 55). A self-administered questionnaire was used to collect anthropometric information, previous or current diseases, MS pain and disorders and work tasks performed. All students attended a training course. Three months after the training they completed a follow-up questionnaire.

Results:

All students reported MS pain: higher at cervical level (91%), lower at lumbosacral level (64.2%), shoulders (43.6%), and wrist/hand level (41.8%). Forty-nine percent of students reported an improvement in pain symptoms (p<0.05) 3 months after the training.

Conclusions:

The prevalence of pain symptoms was high but the training course helped reduce symptoms. Theory and practice of ergonomics should be incorporated into dental undergraduate curricula.

The prevalence of occupational health-related problems in dentistry: A review of the literature

The study was conducted to report on the scope and prevalence of occupational health related-problems experienced by dentists, dental therapists, and oral hygienists in their practice of dentistry.

BACKGROUND

Professional practice and dental training have many risk factors, and the dental team should be able to recognize these factors to protect themselves. The prevalence of conditions related to the musculoskeletal system, stress, percutaneous injuries, ears, and eyes are of concern. The dental team should also not forget hepatitis B, hepatitis C, and HIV as risks in practice. Dental practitioners should protect themselves by self-recognizing risk factors and by maintaining proper working conditions.

METHODS

The study targeted all empirical research, case studies, and systematic literature reviews written in English. All articles selected were subjected to a data analysis process. Data were captured on an Excel spreadsheet and reported in a comprehensive table.

RESULTS

The literature addressing occupational health among dental practitioners included mainly cross-sectional studies and review papers (2001-2016). Forty-nine studies were included in the review. Musculoskeletal disorders remain the most researched occupational health-related problems in dentistry. Eye protection compliance was low among practitioners. Percutaneous injuries especially among young dentists and students were still a concern.

CONCLUSION

Occupational health-related problems are still prevalent in current dentistry practice, despite changes in equipment and surgery design. The reported prevalence of occupational related-health problems and other findings of investigative studies highlight the need for continuous professional education and a need to improve clinical practice aspects of dentistry curricula.

Work-related Musculoskeletal Pain among Different Dental Specialists in United Arab Emirates

INTRODUCTION

Dentists are at a very high risk of developing work-related musculoskeletal pain. The present study aimed at studying the prevalence of musculoskeletal pain among different dental specialists in the United Arab Emirates (UAE), and correlating the region of pain with the type of clinical work done by the specialists.

MATERIALS AND METHODS

A sample of more than 100 dentists was chosen randomly from different emirates in UAE. An interview questionnaire was administered regarding the number of years of experience and the presence, region, duration, and type of musculoskeletal pain they experienced.

RESULTS

Musculoskeletal pain is experienced by 83.3% of periodontists, 80% of conservative dentists, 77.8% of endodon-tists, 72.7% of orthodontists, 70% of oral surgeons, 63.6% of prosthodontists, 63% of general dental practitioners, and 50% of pedodontists. The results have also indicated that the region of experienced musculoskeletal pain does vary according to the specialty. From those dentists who experience work-related musculoskeletal pain, 80% of conservative dentists experience pain in neck and shoulders, 66.7% of periodontists, and 54.5% of orthodontists experience pain in the lower back region. More than 50% of endodontists experience pain in the neck and shoulders regions, and 39% of general dental practitioners who experience pain in the neck region.

CONCLUSION

Preventive measures need to be taken to decrease the risk of dentists and dental specialists developing work-related musculoskeletal pain.

CLINICAL SIGNIFICANCE

The prevalence and distribution of musculoskeletal disorders (MSDs) among registered general dental practitioners and dental specialists in UAE was not clearly documented. The study results indicated that the region that experienced musculoskeletal pain does vary according to the specialty.

Evaluation of Musculoskeletal Disorders in Dentists and Application of DMAIC Technique to Improve the Ergonomics at Dental Clinics and Meta-Analysis of Literature

INTRODUCTION

Musculoskeletal disorders (MSD) result in discomfort, pain and illness that can result in disruption or impairment of dental practice.

MATERIALS AND METHODS

A cross-sectional study consisting of 60 dentists was carried out to determine musculoskeletal work related pain in major cities of Northern India. The study was planned in two phases. In the first phase, the subjects were given questionnaire related to the musculoskeletal pain happened over the last twelve months. In the second phase of study, improvement was carried out by recommending the subjects to implement ergonomics at their workplace. After three months subjects were again approached and given questionnaire about the musculoskeletal disorders. DMAIC (define, measure, analyse, improve and control) methodology of six sigma strategy was used to access the MSDs. Chi-square test was used for the analysis and a p-value of less than or equal to 0.05 was considered statistically significant.

RESULTS

The overall prevalence of musculoskeletal problems in the present study was found to be 68.3%. After three months only 23 respondents applied ergonomics at their work place, prevalence of pain was reduced in neck from 47.8% to 21.7% out of total 23 respondents, shoulder pain 39.1% to 17.3%, pain in elbows from 26% to 21.7%, as well as in other locomotor organs. The p-value was significant with p <0.05.

CONCLUSION

MSD represents a major occupational health issue for dentists in India as well as worldwide and result revealed necessitates the need of workshops to create awareness of ergonomics as effective measures for reducing MSD among dentists.

Self-reported occupational health problems among Libyan dentists

OBJECTIVES

To investigate the prevalence of the most common occupation-related health problems as well as factors associated with their incidence among dental practitioners.

MATERIALS AND METHODS

A cross-sectional, questionnaire-based survey of Libyan dental practitioners. Participants provided information regarding their experience of occupationally related problems they encountered over the past 12 months which included inquiries about musculoskeletal pain, percutaneous injuries, allergy, eye and sight problems, and hearing problems.

RESULTS

Musculoskeletal problems were the most frequently reported (48.2%), followed by percutaneous injuries (35%), eye problems (22%), allergy (11%) and hearing problems (7.6%). Musculoskeletal problems were significantly higher among dentists who work in private sector, full timer as well as those who prefer to work in a sitting position (p=0.021, 0.027 and 0.008, respectively). Practitioners with less than 5 years in service reported significantly higher percentage of percutaneous injuries (p=0.027) than their senior counterparts, whereas practitioners who spent more than 10 years in service were more likely to suffer from visual disturbances (p=0.033).

CONCLUSION

The findings of this study indicate that musculoskeletal problems and percutaneous injuries are the most commonly reported occupational health problems among dentists, whereas allergic reactions and hearing problems are the least reported ones.

CLINICAL SIGNIFICANCE

Dentists should use alternate working positions to minimise musculoskeletal problems and adopt more effective strategies to prevent percutaneous injuries particularly among novices.

Musculoskeletal disorders amongst Greek endodontists: a national questionnaire survey

AIM

To investigate amongst Greek endodontists the prevalence and characteristics of musculoskeletal disorders (MSDs) in the past 12 months, the treatment followed, their postures during practice and the adoption of ergonomic standards.

METHODOLOGY

One hundred and forty-seven endodontists met the inclusion criteria and were invited to participate in the survey. Participants were asked for personal/professional data, prevalence, characteristics and treatment for MDSs in the past 12 months. Endodontists' postures during practice as well as ergonomic factors were also recorded. Data were analysed using chi-square test, independent samples t-test and logistic regression. The level of significance was set at P = 0.05.

RESULTS

The response rate was 84%. MSDs were reported by 61% of the participants. Of them, 69% reported pain to more than one body part. The prevalence of disorders was highest in the lower back (30%) and neck (30%). Medical care was applied in 53% of the disorders. A sitting position was always used by 83% of endodontists. Awkward postures during practice (OR:4.561, 95% CI:1.341-15.512), regular stretching exercises (OR:0.032, 95% CI:0.010-0.110) and number of patients day(-1) (OR:3.524, 95% CI:1.686-18.100) were significant predictors for MSDs. Properly adjusted stools, sufficient lighting and space in the operating room were reported by 71%, 96% and 93% of participants, respectively.

CONCLUSIONS

A high percentage of endodontists reported MSDs. Adoption of correct/neutral postures, regular performance of stretching exercises and reduced number of patients/day were associated with a low prevalence of disorders. The majority of endodontists had adopted ergonomic innovations/standards to control disorders.

Effect of working characteristics and taught ergonomics on the prevalence of musculoskeletal disorders amongst dental students

Background

Work-related musculoskeletal disorders are one of the main occupational health hazards affecting dental practitioners. This study was conducted to assess the prevalence of Work-related Musculoskeletal Disorder (WMSD) amongst dental students. Possible correlations with the working environment and ergonomics taught in Malaysian dental schools were also sought.

Methods

Five dental schools in Malaysia participated in this cross-sectional study. A validated self-administered questionnaire was used to establish the point prevalence of WMSD in the dental students based on various body regions. The questionnaire also collected data regarding the working environment, clinical practice and the taught ergonomics of the students during their training years.

Results

Out of five hundred and sixty eight dental students who participated in the study, 410 were in their clinical years whilst 158 were students in their non- clinical years. Ninety three percent of the clinical year students reported symptoms of WMSD in one or more body regions. Female students reported a significantly higher numbers of symptoms compared to male students. The neck (82%) and lower back (64%) were reported to have the highest prevalence of WMSD. Discomfort in the neck region was found to be associated with self-reported frequency of bending of the neck. A majority of students (92%) reported minimum participation in workshops related to ergonomics in dentistry and 77% were unfamiliar with treatment and remedies available in the case of WMSD.

Conclusions

There was more WMSD seen in dental students who had started their clinical years. Neck and lower back are more injury prone areas and are at increased risk of developing musculoskeletal disorders. Theory and practice of ergonomics should be incorporated into the dental undergraduate curriculum.

Health of dentists in United Arab Emirates

OBJECTIVES

The aims of this study were to investigate the prevalence and nature of some health and lifestyle problems among dentists in United Arab Emirates (UAE).

METHOD

A cross-sectional study with a one-stage complex sampling technique using a self-reported questionnaire distributed to all 844 dentists, working in three cities (Abu Dhabi, Dubai and Sharjah) in UAE.

RESULTS

Seven hundred and thirty-three (87%) dentists, aged 22-70 years, responded. More than half (n = 442, 61%) of dentists do not exercise regularly. Around one-seventh of the dentists are smokers. One hundred and eighteen dentists (16%) reported having some known systemic problem. The most common systemic health problems were cardiovascular diseases (n = 56, 8%).

CONCLUSION

The present study indicates that the prevalence of exercise among dentists in UAE is relatively low and some systemic health problems, especially cardiovascular diseases, are present among dentists practicing in UAE. Cigarette consumption is relatively high in this population of dentist. Further continuing education and investigation of the appropriate intervention to improve rates of exercise and reduce the level of smoking among dentists in UAE is needed, and this may help reduce the level of systemic disease.

General dental practitioners and hearing impairment

OBJECTIVE

Hearing impairment (HI) remains a problem among dentists Hearing loss at speech frequencies was recently reported among dentists and dental hygienists. This study aimed to investigate prevalence and factors associated with perceived HI among dentists.

METHODS

In 2009-2010, 100 general dental practitioners (GDPs) and 115 general (medical) practitioners (GPs) (mean ages, 43.7 and 44.4 years) from Rome (Italy), who commenced practice ≥ 10 years ago, were interviewed on a series of occupation- and recreation-related HI risk factors and on HI-associated symptoms (tinnitus, sensation of fullness, hypoacusis). Prevalence of presumptive HI (≥ 1 symptom perceived during workdays and weekends) was assessed and factors associated with presumptive HI were investigated.

RESULTS

Prevalence was 30.0% (95% confidence interval, 21.0-39.0%) and 14.8% (95% confidence interval, 8.3-21.3%) among GDPs and GPs, respectively. Occupation (GDP vs. GP), family history of hypoacusis, hypertension, ear diseases and smoking were significantly associated with presumptive HI. Within GDPs alone, significant associations were found for frequent use of ultrasonic scalers, use of dental turbines aged≥1 year and prosthodontics as prevalent specialty.

CONCLUSIONS

GDPs experienced HI risk than GPs. Such a risk was not generalized to all dentists, but was specific for those who frequently used noisy equipment (aged turbines, ultrasonic scalers) during their daily practice.

CLINICAL SIGNIFICANCE

GDPs with 10 or more years of practice who routinely use potentially noisy equipment, could be at risk of HI. In order to prevent such condition, daily maintenance and periodical replacement of dental instruments is recommended.