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https://doi.org/10.15644/asc54/1/6

Ozljede na radu među stomatolozima u Hrvatskoj

Ivana Savić Pavičin ; Zavod za dentalnu antropologiju Stomatološkog fakulteta Sveučilišta u Zagrebu, Hrvatska
Željka Lovrić ; Stomatološka ordinacija, Zagreb, Hrvatska
Ayla Zymber Çeshko ; Sveučilište FAMA, Priština, Kosovo; Ministarstvo zdravstva Kosova, Priština, Kosovo
Marin Vodanović ; Zavod za dentalnu antropologiju Stomatološkog fakulteta Sveučilišta u Zagrebu, Hrvatska; Klinika za stomatologiju Kliničkoga bolničkog centra Zagreb, Hrvatska

Puni tekst: hrvatski, pdf (218 KB) str. 51-59 preuzimanja: 133* citiraj
APA 6th Edition
Savić Pavičin, I., Lovrić, Ž., Çeshko, A.Z. i Vodanović, M. (2020). Ozljede na radu među stomatolozima u Hrvatskoj. Acta stomatologica Croatica, 54 (1), 51-59. https://doi.org/10.15644/asc54/1/6
MLA 8th Edition
Savić Pavičin, Ivana, et al. "Ozljede na radu među stomatolozima u Hrvatskoj." Acta stomatologica Croatica, vol. 54, br. 1, 2020, str. 51-59. https://doi.org/10.15644/asc54/1/6. Citirano 17.09.2021.
Chicago 17th Edition
Savić Pavičin, Ivana, Željka Lovrić, Ayla Zymber Çeshko i Marin Vodanović. "Ozljede na radu među stomatolozima u Hrvatskoj." Acta stomatologica Croatica 54, br. 1 (2020): 51-59. https://doi.org/10.15644/asc54/1/6
Harvard
Savić Pavičin, I., et al. (2020). 'Ozljede na radu među stomatolozima u Hrvatskoj', Acta stomatologica Croatica, 54(1), str. 51-59. https://doi.org/10.15644/asc54/1/6
Vancouver
Savić Pavičin I, Lovrić Ž, Çeshko AZ, Vodanović M. Ozljede na radu među stomatolozima u Hrvatskoj. Acta stomatologica Croatica [Internet]. 2020 [pristupljeno 17.09.2021.];54(1):51-59. https://doi.org/10.15644/asc54/1/6
IEEE
I. Savić Pavičin, Ž. Lovrić, A.Z. Çeshko i M. Vodanović, "Ozljede na radu među stomatolozima u Hrvatskoj", Acta stomatologica Croatica, vol.54, br. 1, str. 51-59, 2020. [Online]. https://doi.org/10.15644/asc54/1/6
Puni tekst: engleski, pdf (218 KB) str. 51-59 preuzimanja: 1.089* citiraj
APA 6th Edition
Savić Pavičin, I., Lovrić, Ž., Çeshko, A.Z. i Vodanović, M. (2020). Occupational Injuries among Dentists in Croatia. Acta stomatologica Croatica, 54 (1), 51-59. https://doi.org/10.15644/asc54/1/6
MLA 8th Edition
Savić Pavičin, Ivana, et al. "Occupational Injuries among Dentists in Croatia." Acta stomatologica Croatica, vol. 54, br. 1, 2020, str. 51-59. https://doi.org/10.15644/asc54/1/6. Citirano 17.09.2021.
Chicago 17th Edition
Savić Pavičin, Ivana, Željka Lovrić, Ayla Zymber Çeshko i Marin Vodanović. "Occupational Injuries among Dentists in Croatia." Acta stomatologica Croatica 54, br. 1 (2020): 51-59. https://doi.org/10.15644/asc54/1/6
Harvard
Savić Pavičin, I., et al. (2020). 'Occupational Injuries among Dentists in Croatia', Acta stomatologica Croatica, 54(1), str. 51-59. https://doi.org/10.15644/asc54/1/6
Vancouver
Savić Pavičin I, Lovrić Ž, Çeshko AZ, Vodanović M. Occupational Injuries among Dentists in Croatia. Acta stomatologica Croatica [Internet]. 2020 [pristupljeno 17.09.2021.];54(1):51-59. https://doi.org/10.15644/asc54/1/6
IEEE
I. Savić Pavičin, Ž. Lovrić, A.Z. Çeshko i M. Vodanović, "Occupational Injuries among Dentists in Croatia", Acta stomatologica Croatica, vol.54, br. 1, str. 51-59, 2020. [Online]. https://doi.org/10.15644/asc54/1/6

Rad u XML formatu

Sažetak
Za stomatološku profesiju karakterističan je, nažalost, veliki rizik od ozljeda na radu. Uzrok su specifični radni uvjeti – radno polje je malo i nalazi se u ustima pacijenta, rukuje se mnogobrojnim oštrim instrumentima i svrdlima koja se okreću velikom brzinom, što uz vodeno hlađenje stvara aerosol kontaminiranu mnoštvom čestica sline i krvi. Na taj se način na stomatologa mogu prenijeti infekcije s pacijenta zaraženog, na primjer, hepatitisom B i/ili C, ili HIV-om ako se slučajno ubode iglom ili poreže, što su najčešće ozljede stomatologa na radu, a slijede ih prema učestalosti ozljede oka. Svrha rada: Svrha ovog rada bila je istražiti učestalost ozljeda stomatologa na radu u Hrvatskoj, koje su ozljede najčešće te ustanoviti rizične čimbenike za njihov nastanak (spol, dob, specijalizacija, godine staža). Jedan od ciljeva istraživanja bio je i doznati mišljenje stomatologa o uzročnicima odgovornima za nastanak profesionalnih bolesti i ozljede na radu. Materijal i metode: Istraživanje je provedeno na uzorku od 406 stomatologa u Hrvatskoj koji su odgovorili na pitanja postavljena u elektroničkoj anketi. Rezultati: Ozljedu koja je nastala tijekom obavljanja stomatološke djelatnosti imalo je 63,05 % ispitanika, a 16,5 % zbog je toga potražilo pomoć liječnika. Među ozljedama su najzastupljeniji bili ubodni incidenti iglom (57,75 %) te porezotine (20,86 %), slijede ozljede oka (13,37 %), ugriz pacijenta (4,81 %) pa udarac (1,60 %). Kao najvažniji uzročnik profesionalnih bolesti i ozljeda najviše ispitanika navelo je nepravilan položaj tijela pri radu, a slijede stres, infekcija i buka. Zaključak: Poznavanje rizičnih čimbenika najvažnije je u prevenciji ozljeda, stoga možemo zaključiti da su naši ispitanici velikim dijelom bili svjesni opasnosti koje ih okružuju. Unatoč tomu učestalost ozljeda bila je velika pa su i dalje potrebne preventivne mjere kao bi se ozljede svele na najmanju moguću razinu.

Ključne riječi
ozljede na radu; stomatolozi; Hrvatska; rizični čimbenici

Hrčak ID: 235707

URI
https://hrcak.srce.hr/235707

▼ Article Information



Introduction

The dental profession is rated worldwide as a high-risk profession by many parameters (1).

Research shows that dentists have a distinct tendency for occupational diseases, work-related illnesses and, unfortunately, a high risk of injury during work (2, 3).

Occupational diseases and injuries at work have multiple etiologies, and specific working conditions are one of the important factors (4, 5). The cause of the disease is usually long-term exposure and a high concentration of specific harmful and adverse substances, various microorganisms, and repeated forced non-physiological positions of the body (5). The tendency toward incurring work-related injuries results from constant handling of a large number of sharp instruments and needles, a small working area and the flow of air and water which, in addition to the saliva and blood of the patient, can cause injury to the eye by foreign objects (tooth splinters, material, etc.).

Risk factors in the dental profession can be divided into biological, biomechanical, chemical, physical and psychogenic (5).

Biological factors include viruses, fungi, bacteria and prions that dentists encounter through direct labor in the patient's mouth, due to exposure to saliva, which in many cases is contaminated with the patient's blood. Dentists' awareness of the risks of transmission of infections, primarily hepatitis and HIV, is a necessary prerequisite for prevention, combined with the mandatory use of protective equipment (1, 5).

Biomechanical risk factors include involuntary improper posture and repeated movements, body overstimulation affecting the musculoskeletal and / or neurological system (1).

The term chemical risk factors include various medicines and dental materials that can cause chemical injury, as well as protective equipment and disinfectants that, cumulatively, could be potential allergens with a potential toxic effect (1, 5).

Physical factors are factors that can lead to hearing and vision disorders such as radiation, noise, vibration, artificial lighting, and polymerization light (5).

Psychogenic factors include high levels of daily stress, chronic fatigue and burnout syndrome at work. As a result, various psychosomatic diseases can occur. Also, mental and physical fatigue can lead to decreased concentration and careless behavior while working, which increases the risk of stabbing and other injuries (6).

Due to the specific working conditions and a large number of sharp instruments and needles used by dentists in their work, stabbing incidents are possible and unfortunately occur during clinical work. Apart from the mechanical injury itself, a much bigger problem is the possibility of transmission of the infections and diseases from patients to dentists, if the patient is ill or infected with HIV or hepatitis B and C.

It is estimated that around 257 million people worldwide are chronically infected with hepatitis B and 71 million people with hepatitis C. Croatia is one of the countries with a low rate of hepatitis, but it still poses a high risk for dentists, given that about 25,000 people in Croatia are chronically infected with hepatitis B virus and 40,000 hepatitis C virus (7).

In Croatia, between 1985 and the end of 2018, there were 1,640 people diagnosed as HIV positive (8). The overall number is not large, but it is not a negligible risk when it comes to possible transmission of infection in dental work.

In order to take a serious approach to the problem and to ensure adequate preventive action, Croatian dentists need to study risk factors and the current situation. As we have not found data on occupational injuries within the dental profession in Croatia in the recent literature, we decided to carry out a survey and collect data on the most common injuries as well as data on the awareness of dentists about the health risks present in the workplace.

The purpose of this paper was to investigate into the frequency of occupational injuries among dentists in Croatia, the injuries which occur most frequently to dentists during work, and to identify the risk factors that may be associated with a higher incidence of injuries (gender, age, specialization, and years of practice). One of the goals of the research was to determine the opinion of the dentist about the contributing factors responsible for the occurrence of occupational diseases.

Material and methods

The research was conducted through electronic survey, which was sent via email to 800 addresses of actively working dentists in the Republic of Croatia. Participation in the survey was anonymous and voluntary and all respondents had been in the dental profession for at least one year. The questionnaire consisted of three parts; demographics included gender, age, length of service and specialization. The second part was about the dentist's awareness of occupational health risks. The third part deals with previous experience of workplace injuries in dental offices.

The study was approved by the Ethics Committee of the School of Dental Medicine in Zagreb.

Statistical analysis was performed using the Statistica® computer program (TIBCO Software Inc, Palo Alto, CA, USA). A chi-square test was used to analyze the data obtained in order to determine a statistically significant difference in the frequency of the tested parameters between multiple groups, with a statistical significance level of p ˂ 0.05.

Results

Out of 800 dentists surveyed, 406 dentists completed and answered the questionnaire; the response rate was 50.8%. Out of the total number of respondents, 39.16% were men and 60.84% ​​were women.

The distribution of respondents by age and years of practice is shown in Figure 1. Most of the respondents were general dental practitioners (69.88%); however, all specialist branches were covered by the answers (Figure 2).

Figure 1 Distribution of respondents by work experience and age (years)
ASC_54(1)_51-59-f1
Figure 2 Distribution of respondents by specialization
ASC_54(1)_51-59-f2

33.25% of the respondents with infections believed that they were related to the workplace, while 14.70% of the respondents requested medical intervention because of this. A statistically significant correlation was found between infections (for which the respondents believed were related to dental practice) with age (p˂0.05, ꭕ2 = 11.84, df = 3) and years of practice (p˂0.05, ꭕ2 = 8.99, df = 3), the number of reported infections increased with age. There were no significant associations with other parameters such as gender and specialization. The number of subjects who sought medical attention for such an infection was not associated with any of the parameters examined. 63.05% of the respondents suffered injuries caused by dental practice and 16.5% sought the help of a doctor because of this injury. The incidence of injuries was almost the same in men (61.64%) and in women (63.97%), while female respondents were significantly more likely to seek medical attention after injury (p˂0.05, ꭕ2=3.89, df=1). Out of other parameters examined, seeking medical assistance after injury was only related to years of practice (p˂0.05, ꭕ2 = 10.01, df=3).

The most common injuries were needle puncture incidents (57.75%) and cuts (20.86%), followed by eye injuries (13.37%), patient bite (4.81%) and hit by the patient (1.60%). The needle puncture incident did not show a significant association with gender, age, specialization, and length of practice, while the cuts were statistically significantly related to gender only, more commonly occurring in men. Eye injuries were found to be statistically significantly related to the age of the subjects (p<0.05, ꭕ2 =14.01, df=3), most commonly occurring in the age group between 41 and 50 years and 11–20 years of practice (p˂0.05, ꭕ2 =8.71, df=3). The bite was reported by 8 respondents and the hit by one respondent. It was not possible to establish a statistical correlation with tested parameters because of a small number of cases. One respondent reported a fall that caused damage to the cervical spine. A stabbing incident in the treatment of patients infected with HIV and / or hepatitis was reported by three respondents.

The respondents' opinion on the most important causes of occupational and occupational diseases is shown in Figure 3.

Figure 3 Graphic representations of respondents' opinions on the most important contributing factors responsible for the occurrence of occupational diseases
ASC_54(1)_51-59-f3

The largest number of respondents considered incorrect working posture the most important cause of occupational diseases and injuries (N = 393). Gender, age, length of practice and specialization did not significantly affect the responses. Stress was recognized as second most common risk factor (N = 288); tested parameters had no significant effect on the frequency of this response. In the third place, the respondents reported infections (N = 210) and in the fourth they reported noise (N = 85) as the causative agent of occupational diseases and injuries at work. The frequency of selection of infection as the main cause of disease and injury was not influenced by the parameters studied, while noise was statistically significantly more frequently reported by women (p˂0.05, chi-square = 5.39, df = 1) and subjects in the older age groups (p˂0.05. chi-square = 9.73, df = 3).

Also, the respondents who were general dentists were more likely to report noise as the causative agent compared to specialists (p˂0.05, ꭕ2 =4.02, df=1). Likewise, X-rays were more often considered a risk factor by general dentists (N=38) compared to specialists (N=9), however, due to the small number of specialists, statistical significance could not be established. None of the parameters tested had a significant impact on the selection of the small work field and allergy as the cause of disease and injury.

Discussion

406 dentists participated in this research, representing 8.01% of the 5066 currently active dentists in Croatia (9).

The choice of dentistry as a profession involves a great risk for development of occupational diseases, diseases related to work and injuries at work, which is confirmed by the results of our research, along with data from previously published research on the health status of dentists in our country (1).

The most commonly reported injuries among the respondents were related to stab incidents, which was also expected and confirmed in similar studies in other countries (10). In our study, more than 78% out of the total of the respondents had a stabbing incident and other percutaneous injuries.

After Croatia's accession to the European Union, the obligation to report every stabbing incident to the Croatian Institute for Occupational Health and Safety has been clearly stipulated. In 2018, 827 injuries with sharp objects and other exposure incidents were reported, among healthcare professionals in total (11). This number is not large, but the problem is that, unfortunately, many incidents are still not being reported, due to negligence or ignorance of its importance. There are reports that only 5% to 25% of exposure incidents are reported in Croatia because of the fear of stigmatization, concerns about data confidentiality, i.e. serological testing findings, and the assumption that the application process is time consuming (12). A stabbing incident by itself does not usually constitute significant tissue damage. Its importance is primarily related to the possibility of transmission of the infection during the injection, after the use of a needle or sharp instrument in patients infected with hepatitis B or C virus, and HIV. The risk of transmission of infection after needle-stick infection used in an infected patient is 22-31% for hepatitis B (12). Due to the systematic and very thorough implementation of the vaccination program, the diseases covered by the vaccination program show a very low incidence. The primary focus here is hepatitis B, since no vaccination prophylaxis is available for hepatitis C and HIV.

Croatia is listed as a country with a low rate of hepatitis B, which has been declining for the past twenty years because of the introduction of vaccination. However, hepatitis B remains a major public health problem, given that about 25,000 people in Croatia are infected with this virus (2, 7).

Since 1999, hepatitis B vaccination has been introduced into the compulsory vaccination calendar and children are vaccinated at the age of 12 (6th grade of primary school). During this period, it was also mandatory to vaccinate individuals at increased risk for infection (i.e. healthcare professionals, hemodialysis persons, intravenous drug users, home contacts of chronic patients, newborns of HBsAg positive mothers). Subsequently, hepatitis B vaccination has been introduced into the vaccination program for newborns since 2007 (13).

In regard to HIV transmission, Croatia's accession to the EU has led to faster population migration. Consequently, the risk of potential contagion is greater. In the results of our study, one stabbing incident occurred with a needle while working with an HIV-positive patient. The dentist subsequently underwent post-exposure prophylaxis for a month. The risk of transmission of infection after a percutaneous dental injury if the patient was infected with HIV is about 0.3%, and the possible side effects of post-exposure prophylaxis are not negligible (12).

In a survey of reported percutaneous injuries among health care professionals in Washington State, over a seven-year period, 20% of complaints were made by dental professionals. Out of a total of 894 percutaneous injuries, 8 were associated with the patients who were positive for HBV, 30 positive for HCV, 3 positive for HIV and 2 for HBV and HCV (14).

The survey in Lithuania included 2235 general dentists (15). Over 95.3% of dentists expressed concern about the potential risk of cross-infection with a patient. HBV immunization was present in 35.9% of dentists. Hepatitis infection from an earlier period was reported in 4.3% of dentists. A puncture incident with a needle or sharp instrument was present in 78.5% of dentists. A statistically significant difference was found in the vaccination rate among dentists who work in urban areas, where immunization coverage is greater, compared to the rural environment.

A study conducted in Germany (16) was focused on the exposure to blood pathogens in dentists and dental students. The study confirmed that the dentist's skill plays an important role in the occurrence of potential injuries. Thus, dental students had twice as many needle injuries as dentists with work experience. 54.3% of dentists had at least one stabbing incident in their working lives. As many as 25% of dentists stated that they did not wear a protective mask, and 55.6% said that they did not wear safety glasses while working. 50% of respondents reported stress and loss criteria as a trigger for a stabbing incident. Fatigue was reported by 32.9% as the cause for the injury.

Injury of the eyes in dentistry may be caused by mechanical or chemical factors. In this study, 13.37% of respondents had such an injury. Mechanical injury was most often caused by pieces of amalgam and cement, while one dentist made eye contact with the blood of an infected patient (HBV and HCV).

Zarra and Lambrianidis examined the incidence of eye injuries in endodontics specialists in Greece (6). In the five-year period, infections and mechanical injuries were monitored in 147 subjects. 73% of respondents reported an injury wherein gender and years of work had no effect on injury frequency.

The study in Saudi Arabia included 233 dentists. Over 51% of respondents reported experiencing an eye incident. The risk increased with years of work and lack of education. It is also reported that 15% of dentists have never worn protective equipment (17).

Among the causes of occupational diseases and injuries at work, which were identified by the respondents as the most important risk factors in our study, the incorrect position of the body at work (N = 402), stress (N = 291) and infections (N = 215) have been highlighted. Improper posture is the main cause of neck, lower back and shoulder pain, which has been confirmed by numerous studies. (5, 18, 19) Stress, loss of concentration and fatigue have also been recognized as important role models for the emergence of a stabbing incident in the Wicker and Raubenau study, conducted in Germany (16). Infection was identified as a risk factor by 215 subjects, which supports the fact that dentists are aware of this danger but perhaps not sufficiently. It is necessary to make efforts on raising the awareness about this problem during the period of university education, but also continuously within the framework of continuing education (20, 21).

Conclusion

From the results of this research conducted on a representative sample of dentists in the Republic of Croatia, we can conclude that the rates of occupational injuries are disturbing. More than 63% of respondents had some type of injury sustained while working with patients, most often a stabbing incident. The respondents were aware of the risks at their workplace and they identified the improper position of the body at work, stress, infections and noise as the most important risk factors. Knowledge of risk factors is the first step in injury prevention; hence we can conclude that our respondents were largely aware of the dangers surrounding them. Nevertheless, the occurrence of injuries was high. We may also reduce some risk factors ourselves and / or avoid their undesirable effects by careful and preventive behavior. Dentists need to be alert to do their job safely and efficiently, understand the need for on-going education and training to keep pace with demands of dental profession and design prevention programs in order to raise awareness about this issue. The risk of transmission of infections in dental work (hepatitis, HIV) dictates the need for lifelong care in terms of systemic preventive action.

Since 2014, the “Symposium on Occupational Diseases and Diseases Related to Work at Dentists” has been held regularly in Croatia, with the purpose of introducing dentists to the existing risks to their health and ways of preventive action and responsible behavior. Competition market unfortunately dictates the pace of work where, due to speed and high levels of stress, working conditions become unfavorable and the risk of injury at work increases.

Therefore, it is important to continuously educate dentists, during their study and later, enabling them to be ready to face the risk factors and behave responsibly during their activity, not to impair their own health while caring for oral health of their patients.

Notes

[1] Conflicts of interest None declared

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