DENTISTRY TECHNIQUE

A strip of incompletely elastic material, i.e. elastoplastic material is gripped between the teeth to be examined so that indentations are made in the strip. The strip material has to be optically isotropic and offer a birefringence to mechanical stress. The strip pref. has a uniform thickness of be...

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Bibliographic Details
Main Authors ARCAN M, HEINRICH B
Format Patent
LanguageEnglish
Published 29.04.1981
Edition3
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Summary:A strip of incompletely elastic material, i.e. elastoplastic material is gripped between the teeth to be examined so that indentations are made in the strip. The strip material has to be optically isotropic and offer a birefringence to mechanical stress. The strip pref. has a uniform thickness of between 0.1 and 0.3 mm. and can be made of a polymer such as nylon or polythene. Teeth grip on the strip is maintained long enough to produce semi-permanent indentations. Pref. for between 10-60 seconds. The strip is then released and the indentations examined under polarised light. To simulate biting on food, a separator of deformable or elastic material, pref. between 0.5-3.0 mm thick, can be sandwiched between two strips as previously described.
Bibliography:Application Number: ZA19790004533