HANDHELD DENTAL X RAY MACHINE
Intraoral radiography is a long-standing and essential tool to
support the diagnosis, treatment, and management of dental disease. Back in
1895, when Wilhelm Roentgen took the first X-ray, he probably never imagined it
would spark the digital revolution in today's high-tech wall-mounted and
handheld X-ray equipment. Both wall-mounted units and hand-held devices are
X-ray sources used to generate dental images using film, phosphor plates, or
digital sensors. Traditional intraoral X-ray equipment is designed to be
attached to a wall or ceiling, with an exposure button located behind a
protective barrier to ensure the operator is not exposed to X-rays. Handheld
X-ray devices, developed in the early 1990s for military medical and humanitarian
missions, have grown in popularity in dental practice over the past few years,
challenging the concept of a "controlled area."
When using traditional wall-mounted units, the operator must leave
the room and stand behind a shielding wall during exposure. Today, handheld
battery-operated devices allow you to stay in the room with your X-ray
equipment. There are various handheld devices on the market that have
advantages and disadvantages compared to wall-mounted devices. They come in two
forms, a hair dryer-like pistol design operated by a trigger on the handle, and
a button-operated camera-like design.
The basic components of the hand-held device include the X-ray tube
assembly, the irradiation switch on the fuselage, and the protective shield on
the tapered end to reduce backscattered radiation to the operator. Handheld
devices are an attractive solution for dental offices looking to avoid the cost
of purchasing a wall-mounted unit for each operating room. However, before
deciding to "get out of the woods" and invest in handheld devices,
it's critical to get the full picture by evaluating the strengths and
weaknesses of these new devices.
Indications for the use of hand-held dental X-ray:
The use of hand-held portable X-ray equipment can be divided into
patient-related and forensic situations.
Intraoral dental radiography for patients
In general, hand-held portable X-ray equipment should only be used
when the patient is considered to require intraoral radiography and the use of
fixed-mounted or semi-mobile X-ray equipment proves impractical, such as:
i.
An operating room
where no permanently installed X-ray unit is available and the patient is under
general anesthesia or sedation.
ii.
Emergency rooms,
operating rooms, wards, or other hospital facilities for patients with reduced
mobility.
iii.
Nursing homes,
residential care facilities, or homes for people with disabilities that affect
mobility or their general health and therefore cannot travel to a health care
facility. In this case, subsequent treatment should be considered before
justifying the X-ray procedure. If follow-up treatment is not possible on-site,
the patient may need to be transferred to a medical facility, where X-ray
imaging can be performed.
iv.
Detention center
facilities in which personnel are confined and cannot be easily moved or
transferred.
v.
Working in remote
areas without dental facilities, such as military operations abroad.
vi.
Dental support is
provided in rural areas of developing countries or in remote areas without
dental facilities.
For forensic dentistry,
Hand-held portable X-ray devices can be used in forensic dentistry
applications, such as in large-scale disasters or fatal accidents, where large
numbers of individuals must be identified on-site or in facilities that lack
fixed installation units. In addition, in large-scale disaster areas, power
supply may be cumbersome or not available, or fixed X-ray units may be damaged
by constantly fluctuating wiring. In these cases, hand-held portable X-ray
equipment may be beneficial for the identification process.
Benefit of Handheld Dental X-Rays
The operator can be present with the patient during the X-ray
examination.
• Take radiographs twice as fast as conventional X-ray systems.
• Reduce the number of retakes by up to 50%.
• Move handheld X-ray equipment from room to room without multiple
units.
• Take it with you - ideal for hospital, home healthcare,
humanitarian and on-the-go use.
• Any high degree of flexibility allows easy exposure with the
patient recumbent, fully supine or upright.
• Less chance of conization and other errors when taking X-rays.
• No need to follow exact angles. Typically, 90° or perpendicular
to the film or sensor.
• Lightweight, cordless, and easy to carry.
• No clumsy arms to maneuver, no drift.
• No need for special stands, cables, remote controls, and hundreds
of diagnostic quality images on a single charge.
• Suitable for sensors, films, fluorescent plates.
• Particularly valuable in the dental operating room.
• Ideal for sedated patients, children, elderly, or those with
special needs.
• Ideal for general dentistry, humanitarian work, clinics, mobile,
home health care, hospitals.
• It is rechargeable, so no current is required to operate the
device.
Drawbacks of Handheld Dental X-Rays
Despite its attractive benefits, handheld devices also have some
drawbacks. First, equipment can be knocked to the ground or dropped while being
transported from one operating room to another or trying to adjust X-rays. If
the equipment is damaged, it must be sent in for repair, and the office does
not have an X-ray source to take X-rays.
Second is the fatigue that can result from the operator's entire
weight holding and supporting the unit; a handheld device weighing between five
and eight pounds is the equivalent of carrying a large bag of flour. If the
design of the device is more ergonomic, the level of fatigue can be reduced. If
operators have to put down equipment to make adjustments, productivity can
suffer.
Additionally, if the operator grabs the battery while the patient
is sitting in the chair and finds that the battery is not working, the
operation may be interrupted. Therefore, someone must supervise and monitor the
battery and maintain the charged backup battery pack. Image quality may also
suffer from reduced or inconsistent radiation output as battery power is
reduced.
Frustration can be a problem if a piece of equipment is shared among many operators, and operators must find the piece of equipment and wait for it to become available. Then there is the issue of disinfection. Handheld devices cannot be sterilized; however, to comply with infection control standards, they need to be wiped with a sanitizing cloth between patients or at another regular interval. After the phone is powered off and connected, an acetone-free cleaner with less than 20% alcohol can be used to avoid damage to the case and bezel area. The risk of cross-contamination can also be reduced by placing single-use plastic barriers on the equipment.