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Guiding sleeve tilt angle in paralleling instruments
Author(s) -
MöLLERSTEN LENNART
Publication year - 1984
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1984.tb00597.x
Subject(s) - tilt (camera) , drill , orthodontics , engineering , mechanical engineering , medicine
Summary To investigate the guiding sleeve tilt angle in paralleling instruments, the diameter of guiding sleeves and drill shanks were measured for a number of instrument makes and Spirko type drill makes. Significant diameter differences between makes were found for drills as well as for sleeves. The guiding sleeve tilt angle changed considerably depending on drill—instrument combination. Selection of an unsuitably dimensioned drill could increase the sleeve tilt angle by about four times. A dimensional standardization of guiding shanks and sleeves is thus recommended.