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Title

Accuracy of electronic apex locater-controlled handpieces

Authors
Wataha, John
Published in Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology. 2009, vol. 107, no. 3, p. 437-441
Abstract An in vitro model was used to test a hypothesis that the manual (apex locator) and motor-driven (apex locator-controlled handpiece) operating modes of 3 newly developed apex-locator-controlled handpiece devices (Dentaport ZX, Endomaster, XSmart Dual) give the same working length. The depth of penetration of the file into the root canal was measured using a digital micrometer and the distance of the tip of the file relative to the major root foramen was determined by scanning electron microscopy (SEM). In the manual mode, the XSmart Dual device reported significantly shorter working lengths than the Dentaport ZX or the Endomaster devices. In the motor-driven mode, the XSmart Dual device reported significantly longer working lengths than the Dentaport ZX but not the Endomaster. Most instruments driven by the handpieces were confined within the root canal and differences in working lengths between manual and motor-driven modes were small for all devices (tenths of millimeters). We concluded that although the motor-driven mode of these devices appeared to be clinically safe, measurements obtained in manual and motor-driven operating modes are not equivalent.
Keywords *Dental High-Speed EquipmentDental Pulp Cavity/*anatomy & histology*Electrical Equipment and SuppliesHumansOdontometry/*instrumentationReproducibility of ResultsRoot Canal Preparation/instrumentationTooth Apex/*anatomy & histology
Identifiers
PMID: 19168373
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Structures
Research groups Groupe Krejci Ivo (médecine dentaire) (240)
Groupe Bouillaguet Serge (medecine dentaire) (846)
Citation
(ISO format)
BARTHELEMY, Jonathan et al. Accuracy of electronic apex locater-controlled handpieces. In: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 2009, vol. 107, n° 3, p. 437-441. https://archive-ouverte.unige.ch/unige:19658

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Deposited on : 2012-04-23

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