Periodontal probe

Dentistry – Apparatus – Having gauge or guide

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433141, A61C 300

Patent

active

042032237

ABSTRACT:
A force-controlled periodontal probe is disclosed, the probe having a scale-marked shaft slidably carried by an alignment sleeve at the head end of the instrument and urged into a normally extended condition by a thin leaf spring. Measurements of gingival sulcus depths are taken when the force applied by the periodontist to the handle of the instrument and the resistance to further penetration by the tip portion of the shaft have caused the shaft to shift into an indicated displaced position. In that position the spring exerts a predetermined and accurately reproducible probing force.

REFERENCES:
patent: 3058225 (1962-10-01), Ward
patent: 3935640 (1976-02-01), Cohan
patent: 3943914 (1976-03-01), Grenfell
Hassell et al., Periodontal Probing: Interinvestigator Discrepancies and Correlations between Probing Force and Recorded Depth, Helv. Odont. Acta 17:38-42 (Apr. 1973).
Listgarten et al., Periodontal Probing and the Relationship of the Probe Tip to Periodontal Tissues, J. Periodontal, 511-513, (Sep. 1976).
Armitage et al., Microscopic Evaluation of Clinical Measurements of Connective Tissue Attachment Levels, J. Clin. Periodontology, 4:173-190 (1977).
Glickman, Clinical Periodontology, 549-551, (4th Ed., W. B. Saunders & Co., 1972).
Gabathuler et al., A Pressure-Sensitive Periodontal Probe, Helv. Odont. Acta 15:114-117 (Oct. 1971).

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