99
A less stressful alternative
An alternative to the flat traditional dental chair, is the Bambach
saddle chair (Hager Worldwide, Hickory, NC). Saddle chairs, help
preserve the natural “S” curvature of the spine removing strain
from the lumbar area. (Figure 2) Additionally, due to the seat
shape the spine-hip angle is kept at an optimal 45 degrees
allowing back and thigh muscles to be at their most relaxed
positions. Utilization of the Bambach saddle chair was shown to
maintain an acceptable working posture which may reduce the
development of work-related musculoskeletal disorders.5
Additionally, with proper posture during treatment stress and
strain is taken off of the shoulders. When utilizing a flat chair,
the operator while leaning forward will elevate the elbows while
working. This placing increased stress on the shoulders which is
transmitted to the neck leading to orthopedic issues over time in
this area and fatigue after shorter periods of work. Whereas, with
the Bambach chair the operator is seated more upright with the
elbows positioned closer to the body in a more natural position.
This takes strain off the shoulders and fatigue during long
treatments or busy days so is not felt as readily as with flat chairs.
Typically, when seated in a flat chair, the operator tends to
position themselves so that their knees are at the same level as
the hips (horizontal and parallel with the floor). Proper positioning
in the Bambach chair so that the hips are at the optimal angle
requires that the knees be positioned slightly lower then the hips
to create an angle with the horizontal plane. This aids in removing
loading of the lumbar region. (Figure 3) It is also recommended
that if the practitioner is planning on changing their loupes or
acquiring a set, that the working distance be measured while
seated in the Bambach chair and the patient ideally positioned.
This will ensure the ideal working distance.
Conclusion
Doctors and hygienists spend a large portion of their day seated
rendering treatment. Over time stress and strain in the lumbar
region and also the neck can lead to degenerative changes that
can affect not only how we practice but the quality of life both in
and out of the operatory. The Bambach chair positions the
operator in the correct position, with optimal angle between
the spine and hips relieving stress in the lumbar area. Less
physical stress when rendering treatment results in a better
health especially as we age.
Additional information can be found at: www.hagerworldwide.com
Figure 2: Curvature of the back while utilizing the Bambach
saddle chair places the spine into a natural “S” shape
relieving strain in the lumbar area.
Figure 3: Positioning on the Bambach saddle chair is
important and the knees should be positioned lower then
the hips to create the optimal 45 degree angle between the
spine and hips.
/www.hagerworldwide.com