Dental professionals are susceptible to a number of occupational hazards. Relying on relevant literature, the present paper discusses selected occupational hazards - occupational biohazards, stressful situations, and latex hypersensitivity, as well as factors leading to the musculoskeletal system diseases and diseases of the peripheral nervous system.
Potential sources for occupational hazards to dentists 1-Working for long periods of time in physiologically improper positions. 2-Contact with patients. 3-Contact with certain chemicals and materials used in dental practice. 4-Contact with X-ray.
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1- Working for long periods of time in physiologically improper positions. This can affect the dentists’ legs spines and shoulders Leg spine shoulder pain flat foot drooping curvature varicositiy
To avoid or minimize such effects dentists should strictly apply the following: 1- As long as possible working should be in a seated position using an operating stool. 2- If standing position is mandatory while working, it should be in an erect posture. 3- Not to frequently bow the back for better inspection or access to different areas in oral cavity while seated or standing. 4- Not to work for a long time in a fixed position in order to avoid varicosity of the lower extremities.
2-Contact with patients. Infection Harmful effects Eye injury and/ or inflammation Mental fatigue
Infection Aerosolization is a process whereby mechanically generated particles ( droplet nuclei ) remain suspended in the air for prolonged time periods and may be capable of transmitting an airborne infection via inhalation Aerosols are airborne particles, generally 5-10 µm in diameter, that may travel for long distances. They may occur in liquid or solid forms. Splash and spatter are large droplets that remain airborne but contribute to infection of horizontal surfaces (indirect contact)
Infection can be transmitted to dentist from infected patients who have infectious potential. Infection transmission: A- Airborne: influenza, common cold, T.B . (Aerosols) B- Bloodborne : Syphilis, Hepatitis B and C, and AIDS. Infected blood should contact dentist’s blood (needle prick after patient injection, wound in dentist’s hands) C- Direct contact of hands with oral mucosal lesions : syphilis and herpes simplex infection. Saliva and hepatitis C ?
Certain precautions should be taken to minimizing the risk of such infections to dentists: 1-In dealing with T.B. patient, or a patient suffering from common cold or influenza, the dental surgeon should wear a face mask 2-The use of high speed hand pieces with T.B. patients should be avoided to minimize aerosols. 3-In dealing with a syphilitic patient, the dental surgeon should wear rubber or vinyl gloves. The dentist should not scrub his hands with a brush before or after working on these patients, since scrubbing may produce minute abrasions which serve as a portal of entry for microorganisms
4-During clinical examination, mucosal lesions should never be touched without gloves. 5-Careful handling of sharp instruments during treating hepatitis and AIDS patients. It should be always remembered that blood and blood products of hepatitis and AIDS patients carry diseases of no known cure. However, it is not possible to identify all infectious cases that seek dental help. Thus, as a golden role “All patients should be treated as if they are infectious and routine cross-infection control is necessary when dealing with every patient”
Eye injury and inflammation: During treatments of the patient , it may happen that patient’s blood, salivary droplets (splash), calculus, or fragments of a tooth or amalgam filling might accidentally hit the eyes of the dentist. This might lead to minor trauma and/or inflammation. In such case the dentist should wash his eye(s) immediately with sterile saline, and seek the help of an ophthalmologist for any further indicated management. To avoid such hazards eye glasses should always be used while treating the patients.
Mental fatigue: - This results from communication and dealing with the patients, added to realization of professional abilities. - Although this is not a disease, but unfortunately, it is sometimes unavoidable and it might adversely affect the quality of the dentist’s work.
3-Contact with certain chemicals and materials used in dental practice. Direct contact with materials such as eugenol, phenol, iodine, formalin, some impression materials, topical anaesthia and others allergic dermatitis This direct contact could simply be avoided by sticking to wearing gloves. Amalgam?
4- Contact with X-ray X-ray is an ionizing radiation that is capable of initiating and producing damage to body cells, as well as carcinogenic and genetic changes. Careless dentists used to hold the dental X-ray films inside the patient’s mouth (for obtaining better quality of image) are at risk for developing radiation dermatitis on hands, or on a long run squamous cell carcinoma of the figures.
For protection from radiation hazards, principles and means of radiation protection should be applied and used during radiation exposure. Dentist should not hold the film in patient’s mouth. -Dentist should avoid direct exposure to X-ray beam, and proper position of the dentist in relation to either the X-ray machine or the patients should be strictly applied. -Regular checking of leakage from X-ray machine should always be performed.
back pain is one of the main hazards.
a dentist who does not have back pain does not have patients
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Most commonly back pain is while working on upper teeth
That s the reason one must put the habit of working in indirect vision
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Myofascial Release
John Barnes popularized this technique and I've read that it's very effective for people with chronic pain and those who are recovering from trauma. The therapy is very gentle -- so gentle that it sometimes seems like there's no way it could help. Yet, it made an incredible difference in my mobility and pain level. It helped me get things unstuck where they'd been in the same position for too long or gotten into a bad pattern with me not moving very much while I was in bed. Some yoga programs incorporate Myofascial release techniques as do some massage therapists and physical therapists.
McKenzie
Robin McKenzie is a doctor who revolutionized back care and has written a book called "Treat your own back". The treatment consists of very gentle exercises that move your spine back into alignment. I found it helpful to have the book in addition to the physical therapy as I was able to understand why the exercises worked and it helped me to remember the exercises at home.
McConnell Taping
Natural pain relief. The therapist tapes your body so that it holds the muscles in the correct position. The tape gives your muscles a little bit of additional support and keeps you from getting into bad postures. I thought this was crazy when the therapist first did it, but it worked wonders and over time I learned to tape myself in between therapy sessions
General thoughts
I looked for a physical therapist who was trained in the McKenzie technique. She had been practicing for over 20 years. For those in the Seattle Area, my therapist was Robin Angus at Movement Systems physical therapy in Eastlake. The PT department at Group Health is also trained in McKenzie.
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Natural drugs and supplements.
Topricin
Dietary Supplements
Prescription Pain Relief
Vioxx
Darvocet
Prescription Topical Muscle Relaxant
Effexor
pain relief devices, including TENS, Ice Pack, Saunders Home Traction, and Electrostim
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Dental professionals may be at risk for exposure to numerous workplace hazards. These hazards include but are not limited to the spectrum of bloodborne pathogens, pharmaceuticals and other chemical agents, human factors, ergonomic hazards, noise, vibration, and workplace violence.
There are currently no specific standards for dentistry. However, exposure to numerous biological, chemical, environmental, physical, and psychological workplace hazards that may apply to dentistry are addressed in specific standards for the general industry.
OSHA Standards
This section highlights OSHA standards, directives (instructions for compliance officers), and standard interpretations (official letters of interpretation of the standards) related to dentistry.
Note: Twenty-five states, Puerto Rico and the Virgin Islands have OSHA-approved State Plans and have adopted their own standards and enforcement policies. For the most part, these States adopt standards that are identical to Federal OSHA. However, some States have adopted different standards applicable to this topic or may have different enforcement policies.
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80% of dentists retire early due to the occupational hazards of their profession. Some of the occupational hazards include:
Back Pain
Toxins
Neck Pain
Mercury Poisoning
Carpal Tunnel Syndrome
Varicose Veins
Hemorrhoids
Herpetic Whitlow
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Herpetic Whitlow
A herpetic whitlow is a lesion (whitlow) on a finger or thumb caused by the herpes simplex virus. It is a painful infection that typically affects the fingers or thumbs. Occasionally infection occurs on the toes or on the nail cuticle. Herpes whitlow can be caused by infection by HSV-1 or HSV-2. HSV-1 whitlow is often contracted by health care workers that come in contact with the virus; it is most commonly contracted by dental workers and medical workers exposed to oral secretions. It is also often observed in thumb-sucking children with primary HSV-1 oral infection (autoinoculation) prior to seroconversion, and in adults aged 20 to 30 following contact with HSV-2-infected genitals. Symptoms of herpetic whitlow include swelling, reddening and tenderness of the skin of infected finger. This may be accompanied by fever and swollen lymph nodes. Small, clear vesicles initially form individually, then merge and become cloudy. Associated pain often seems large relative to the physical symptoms. The herpes whitlow lesion usually heals in two to three weeks.
In children the primary source of infection is the orofacial area, and it is commonly inferred that the virus (in this case commonly HSV-1) is transferred by the chewing or sucking of fingers or thumbs.
In adults it is more common for the primary source to be the genital region, with a corresponding preponderance of HSV-2. It is also seen in adult health care workers such as dentists because of increased exposure to the herpes virus.
Treatment
Although it is a self-limited illness, antiviral treatments applied to the infected skin, particularly topical acyclovir, have been shown to be effective in decreasing the duration of symptoms. Lancing or surgically debriding the lesion may make it worse by causing a superinfection or encephalitis.
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Exposure to radiation and mercury inhalation are are on other lists
exposure to radiation is not much of a problem if basic precautions are taken.
exposure to mercury is
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Regular yogic exercises help.
Traction Devices
Caution should be taken when applying traction to any newly injured area, and is should not be performed in these cases unless specifically recommended by your doctor. Lumbar (low back) traction can be accomplished through various products which keep the pelvis stationary while using gravity to force separation of the vertebrae and thereby open the spinal canals that the nerves exit through. However, the multifidous muscle which attaches to the lumbar vertebrae may not allow the separation of the vertebrae if the muscle is in too much spasm. Some types of traction allow for better separation when the multifidous muscle is in spasm. One such type of traction is performed by doctors of chiropractic through applying pressure manually to the spine while a flexing table tractions the spine in a downward motion. In the earlier stages, light traction can provide an unloading of the spine, thereby releasing the nerve pressure between each segment created from a decrease in circulation and an increase of inflammation within the joint space. In later stages, traction combined with body movement may also help to break up scar tissue build up between the joints. When the muscles are in too much spasm to allow for this type of traction, upright types of traction units can enable a person to move their body during the therapy to avoid further muscle spasm, while providing a relieving therapy to the spine. Home traction units may be beneficial, but caution should be taken not to apply too much traction too quickly to the back, as this may initiate a spasm to the surrounding musculature. Therefore, only traction units which can gradually increase the separating of the vertebrae and allow unloading of the spine without reaching too much drastic pull would be recommended.
Vakrasan, tadasan and parvat asan are good for the back. Dentists must be taught these in the 3rd year itself
Myofascial Pain Syndrome
Myofascial Pain Syndrome will vary in severity. For this reason, please take the time to read about the following information about this condition before you decide what approach to take for helping with treatment and prevention:
*Health Disclaimer
Any information given about back related conditions, treatments, and products are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on the #1 Back Pain Site! See *Site disclaimer for more information.
Table Of Contents:
All About Myofascial Pain Syndrome & Approach Treatment
Therapies, Products, and Activities to Help Your Condition
1. Choosing the Correct Mattress for Better Back Support
2. Finding the Right Chair or Seat Insert Cushion
3 Soft Back Braces
4. Traction Devices
5. Electric Stimulation Devices
6. Ultrasound
7. Ice packs
8. Hot Packs
9. Whirlpool and Jacuzzi Water Therapy
10. Mechanical Massage Devices
11. Topical Analgesics for Pain Relief
12. Vitamin, Mineral and Herb Supplementation
13. Nutritional Aid in the Healing Process
14. Medications
15. Exercises and Stretches for Your Back Condition
16. Yoga and Meditation to Relax the Back
17. Correct Shoes for Avoiding Back Pain
18. When to Use a Heel Lift or Orthotic Shoe Insert
Deciding on the Best Health Care for you
1. Chiropractic
2. Massage Therapy
3. Acupuncture
4. Physical Therapy
5. Medical Practitioners
All About Myofascial Pain Syndrome & Approach to treatment
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When the muscles of the back become injured from prolonged irritation, they can develop a reactive inflammation called myofascitis. Myofascial pain syndrome refers to a condition where the myofascitis occurs on a constant basis and becomes chronic over a long period of time.
Muscles of the back may be injured initially through traumatic tearing of the fibers, repetitive strain, and through pre-existing conditions which cause the muscles to be weakened and inflamed without provocation. Fibromyalgia is one such condition in which multiple muscles of the body are in a constant irritated state, and demonstrate myofascial pain syndrome. While traumatic injuries are easily identified, repetitive strains can be more difficult to ascertain. These strains can begin with a repetitive movement where the muscles are being irritated over a long period of time until they become vulnerable to tearing from a simple change in the position of the back. For example, a person who has improper posture at a computer on a regular basis, or a golfer who plays frequently with bad form may have their muscles tighten over time and form micro-tearing and inflammation as a result. Approximately 5 days after an injury, scar tissue will then form to act like glue to bond the tissue back together. Scar tissue will continue to form past six weeks in some cases and as long as a year in severe back strains. In cases where the repetitive irritation is not halted, or if the area does not heal properly and the scar tissue does not break down, myofascial irritation will persist.
The initial approach to treating myofascial pain syndrome is to support and protect the muscles, help them to loosen up and lessen the pain and minimize any inflammation. Due to the stiffness which accompanies scar tissue, it will be important to perform procedures which help break down the scaring in the muscle, so as to let the muscle regain its normal flexibility and lessen the chance of further injury. While exercise is appropriate for breaking down scar tissue once the area has healed, it may further irritate the area during the initial stages of a re-irritated myofascial pain syndrome. Therefore, other methods such as ultrasound, massage, and chiropractic adjustments may be safely used to accomplish this early on in the injury. The listed Therapies, Products and Activities section will give more information on how to help your condition, however, as each Myofascial Pain Syndrome condition is different, always consult your doctor to determine what treatment is right for your particular situation.
Therapies, Products, and Activities to Help Your Condition:
Choosing the Correct Mattress
A good mattress will protect the back for the many hours that you are in bed. A mattress that properly supports the body will also be a very important element in helping relieve stress on the muscles and joints of the back. The most important information needed for finding a correct mattress to support the back involves knowing what position you sleep in. The menu below will help you to search for a mattress that is right for you.
Choose a sleeping position:
Back Side Stomach All Positions
Finding the Right Chair or Seat Insert Cushion
Whether you sit for minutes or hours, you can't underestimate the value of proper posture while sitting. It has been demonstrated that at times there can be as much as six times the amount of stress on your back when you sit than while lying down. Fortunately you can lower the amount of stress placed on the spine with proper back support. To accomplish this, first you must decide whether the chair you use presently is adequate for your needs. A good chair will be able to provide your lower back with proper lumbar pressure. This pressure will keep the curve of the spine in this area supported in the normal position. When a proper lumbar support is not provided with your chair, an insert lumbar cushion can accomplish this. The size of the cushion is very important, as too much lumbar support can compress and irritate the spine. A good working ergonomic type of chair can be adjusted to allow tilting and height control of the seat and chair back. Here are some tips for adjusting your chair properly: Adjust the height of the chair to allow your feet to rest comfortably on the floor. Adjusting the tilt angle of the seat will change the position of your pelvis, thereby shifting the back towards or away from the seat back. Tilting the front of the seat downward will bring your lower back into extension and thus increase the lower lumbar curve. Tilting the front of the seat upward will bring your lower back into flexion and thus decrease your lumbar curve. Combine the seat angle tilt with the seat back tilt for optimal support of the back. If the seat back height can be adjusted, make sure the small of your back fits with the part of the seat back which curves outward to support the lower back. If these adjustments still do not support the spine properly, you will definitely need a lumbar insert cushion or more ergonomically correct chair. Insert cushions will need to have height adjustability to fit correctly. This is usually achieved with a strap that allows you to set the height of the cushion to the thickest part against the small of your back. Each person's spine curves differently, so another important feature that some back support cushions provide is the ability to adjust the size of the lumbar thickness to customize the fit.
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Ultrasound
Ultrasound is an extremely effective way to stimulate proper tissue healing. Sound waves are generated from a crystal vibrating inside the head of the ultrasound wand and then transmitted through sound conducting gel to the tissue. This allows the sound waves to break down unwanted scar tissue, increase circulation to the area, and help relax the musculature. This can be extremely beneficial in the case where the Myofascial Pain Syndrome has caused soft tissue irritation to the back. Ultrasound can only be used in the presence of a licensed health practitioner.
Ice Packs
Ice can be used in the initial 72 hours of an injury to reduce inflammation and numb the pain associated with Myofascial Pain Syndrome. One potential problem with ice is that temporarily it will tighten the musculature even more. Also it should be noted that ice should not be used for longer than 20 minutes to an area, as it will cause a reversal reaction which will allow the tissue to become more inflamed. For low back inflammation we recommend using a combined brace and ice gel pad to put a more firm pressure over the irritated area. This will also provide support over the injured area while providing ice therapy. Patients we surveyed feel that the brace and ice gel pad combination below works extremely well (see Soft Back Brace section for more information on bracing).
Hot Packs
Hot packs are useful for increasing circulation and thereby loosening up the muscle tissue. Waiting to use heat therapy until three days after the onset of when the initial irritation of the Myofascial Pain Syndrom first occurred will give the swelling a chance to go down, as heat increases the inflammation to the area. It is believed that moist heat is better than dry, as there is less possibility for dehydration to the musculature. We found a simple to use moist heat pack (depicted below) which contains beads that activate upon being heated up in a microwave to give off moist steam without adding water. This occurs from a natural process by which the beads retain moisture from the air. The ease of use, combined with the comfort of this product, make it a very popular therapy with the patients we survey
Humans exposed to amalgam prenatally won’t suffer major health problems from the amalgam, according to a new study.
The study indicated that there were some detectable effects, however. Boys appeared to be adversely impacted while girls benefitted. These results appear to be coincidental because mercury isn’t beneficial to any human.
This study appeared in the November issue of the Journal of the American Dental Association.
The effects from mercury are compounded with children and fetuses because their brains are still in the process of developing.
There have been few studies done regarding this topic, according to the United States Food and Drug Administration. This study was only one section of comprehensive research analyzing prenatal mercury contact in the Seychelles Islands. The study indicated that eating fish did little, if any, harm to humans.
The data came from nearly 800 mothers in the Seychelles Islands. The babies began to be part of the research at 6 months old in 1989 and 1990. The mothers were given 12 fish meals each week. The children were then part of the study through age 19.
There were 711 children still part of the study when they were 66 months old. It was not difficult to analyze the dental history of the mothers, since dental coverage is free in the Seychelles Islands.
The researchers didn’t know everything they needed to know about the mothers’ dental history, however. They projected an upper and lower limit for amalgam exposure of each mother. They also looked at the dentition of the mothers 10 years after birth.
The research team studied many different factors of each child. They also weighed the outcomes based on all of these factors.
There was nothing significant found that would state that there was a correlation between amalgam surfaces and any of the possible outcomes. But there was a correlation between the sex of the child and the lower exposure limit of amalgam.
Despite the information that prenatal amalgam exposure doesn’t have a major impact on children, mothers would still be best served to hold off on amalgam restorations until their child is born.
The liabilities and risks that dentists face regarding infection control for both staff and patients extend beyond financial ramifications. For infection control lapses involving patients, there is the possible violation of state dental board regulations, which can result in fines and license suspensions for serious violations. For infection control lapses involving employees, there is the risk of OSHA violations, which also carry fines and penalties. In addition, civil liabilities can occur when an illness, or the serious risk of illness, to either patients or employees occurs. Lawsuits have resulted from issues involving needlesticks, dental unit waterlines, improper sterilization, etc.
“Ambulatory healthcare, including dentistry, is currently a center of attention for infection prevention in the United States. One article reported more than 30 major infection prevention breaches in ambulatory centers during the last 10 years,” OSAP says. “A few cases have been so significant in scale and egregious behavior that several states are considering making infection prevention malfeasants not just a tort issue, but also a criminal violation.”
To avoid infection control risks and liabilities, OSAP emphasizes that knowledge and communication are the best defenses. Dentists who ensure both they and their staff are aware of the Centers for Disease Control and Prevention guidelines, and state and federal regulations, are acting in a responsible manner. Regular training in infection control for all personnel, including the dentist, should be documented. Attendance as a team at such infection control CE courses as the OSAP Annual Infection Prevention Symposium should be followed by discussions in a staff meeting about what was learned in the course.
“All staff members must be aware of their facility’s infection prevention program. Progressive offices make it a point to actively involve office personnel (including input) in their facilities’ programs, often through regular office meetings,” OSAP emphasizes. “Patients must be aware of the activities performed by the office. Communication about infection prevention between office and patients, and among office personnel, is essential.”
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According to the Organization for Safety, Asepsis and Prevention (OSAP), during the mid-1990s, when the case of the Florida dentist who infected six patients with HIV became national news, there was public outcry (and subsequent legislation) to require certain precautions be taken to prevent disease transmission. Patient awareness and fear of infection, along with the late 1980’s uncertainty about the exact modes of HIV transmission, drove dental professionals to adopt universal precautions and begin considering all blood and certain body fluids as potentially harboring bloodborne viruses. Later, these expanded into standard precautions, which encompass all body fluids (with the exception of sweat) and all infectious diseases—not just bloodborne viruses.
“This changed the standard of care, and dental professionals who did not adopt these changes exposed themselves to potential liability if a patient or employee contracted or suspected they contracted an illness in the dental office,” explains the nonprofit association. “For the last five years, major infection prevention groups have refined their emphases, including a shift from the term ‘infection control’ to ‘infection prevention.’ Control indicates a reduction in numbers of cases, while prevention means elimination—‘zero tolerance.’”
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Hepatitis B is a highly-infectious disease which is caused by the hepatitis B virus (HBV); hepatitis B affects a person’s liver and causes an inflammation (which is called “hepatitis”). A person can be protected from serious complications that can result from hepatitis B by a hepatitis B vaccine; this vaccine can save a person from potentially fatal hepatitis B complications like liver cirrhosis and liver cancer.
Patients with hepatitis B or even hepatitis B symptoms should inform their dentist of their condition when going in for a dental appointment; informing the dentist of the presence of hepatitis B is even more important when a dental procedure or surgery needs to be done, because the dentist would have to take extra precautionary measures for both the patient and for himself.
The infectious nature of hepatitis B would require the dentist to be extra careful when doing dental treatments and procedures on the patient, who in turn would have to get his or her physician’s go-signal before undergoing any dental procedure. This is Dentistry can give you access to the contact information of dentists in your local area, who are experienced and qualified to deal with the dental concerns of hepatitis B patients.
Hepatitis B Symptoms
Hepatitis B can start with the following symptoms, which, when experienced on their own, may not alarm the patient. However, when seen together, these hepatitis B symptoms can be very clear warning signs of trouble.
A general feeling of ill health
Body aches
Nausea
Vomiting
Mild Fever
Dark urine
Appetite loss
Development of jaundice
Hepatitis B Prevention
The only known and proven way to prevent a patient from getting hepatitis B is to get the hepatitis B vaccine. Avoiding the risk factors listed below can also greatly reduce the possibility of getting infected with the hepatitis B virus.
Sexual contact with persons infected with hepatitis B
Unprotected sex with multiple partners
Using the same needle used by other patients for injections
Exchange of body fluids with patients suffering from hepatitis B
Patients with hepatitis B should consult their physician before having any dental procedure done – this is for the safety of both the patient AND the dentist who will do the necessary procedures. This is Dentistry will guide you in finding a competent and experienced dentist in your local area, who can expertly give you the dental care you need