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Training place layout for an apprentice dental technician with a hand prothesis in a dental laboratory


The employer is a dental laboratory which manufactures dental prostheses.

Disability and functional restriction of the employee:

He has had a missing right hand and part of his lower arm since birth. Because of this he is restricted in holding, carrying abd gripping. His degree of disability is 50.

Training and job:

Her completed a 6 week practical in a dental laboratory. During this time he convinced the owner of the dental laboratory of his ability so that after the practical he kept his training place as a dental technician.

Workplace and duties:

He has a lower arm prothesis which can be equipped with an electric hand for work. A modern electronic control built into the lower arm prothesis enables the regulation in the electric hand of speed and gripping strength via the strength of muscle signals from the arm. Thus forceful gripping but also gentle touching of small and breakable objects is possible (figure 1). The gripping hand can also be operated manually (with the left hand) via a hand wheel. With the electronic hand he can hold objects and position them while he carries out the necessary fine motor activities with the left hand (figure 2). Because of his above mentioned disability the availability of an ergonomically laid out workplace is particularly important.

He works at a technical table with:
- electric adjustable worktop
- integrated dust removal with pivoting suction head
- inbuilt gas, air and electric connections
- retractable arm plates
- pivoting workplace lighting and
- ergonomic revolving workchair

The technical table is set out for seated activities, while standing activities are planned for the plaster table. Thus his body posture can be frequently changed during the working day. The laser welding system is also set out for seated activities. Various settings on the system take place via a multi-function foot control so that his hands remain free for concentrated and interuption free work (figure 3).

Assistive devices used:

prosthetic hands and prosthetic digits
split hooks and other terminal devices to employ a pincer action
specialized appliances or tools for prosthetic hands
arm supports to permit manual activities
workplace furniture and furnishing elements
work chairs and office chairs
working lights
air cleaners


The disabled-friendly layout was supported by the Integration Office.



  • physical disability /
  • dental technician /
  • dental lab /
  • prosthesis /
  • worktable /
  • table /
  • lighting /
  • working light /
  • lamp /
  • work chair /
  • chair /
  • armrest /
  • air cleaner /
  • suction equipment /
  • suction device /
  • dust extraction /
  • working equipment /
  • transfer school-work /
  • lower arm prosthesis /
  • armrest /
  • handling /
  • work task /
  • lower arm support /
  • hand prosthesis /
  • arm prosthesis /
  • new hire /
  • employment /
  • participation in working life /
  • participation /
  • full-time job /
  • employer /
  • vocational rehabilitation /
  • initial training /
  • educational gateway /
  • arm /
  • hand /
  • respiratory protection /
  • industrial safety /
  • safety /
  • qualification /
  • EASTIN /
  • handling and transport /
  • body posture and body part movement /
  • amputation /
  • office for vocational integration /
  • hand impairment /
  • arm impairment /
  • hand amputation /
  • training /
  • handicraft /
  • gripping /
  • holding /
  • carrying /
  • finger hand movement /
  • reaching area /
  • workplace design /
  • technical advice /
  • vocational training /
  • assistive product /
  • practical course

update status: 24.11.2009

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