Observable characteristics coincident with internal cracks in teeth
نویسندگان
چکیده
منابع مشابه
Near-IR imaging of cracks in teeth.
Dental enamel is highly transparent at near-IR wavelengths and several studies have shown that these wavelengths are well suited for optical transillumination for the detection and imaging of tooth decay. We hypothesize that these wavelengths are also well suited for imaging cracks in teeth. Extracted teeth with suspected cracks were imaged at several wavelengths in the near-IR from 1300-1700-n...
متن کاملMultiple internal resorption in permanent teeth associated with hyperparathyroidism.
Internal resorption has been described as a resorptive defect of internal aspect of tooth. It is caused by transformation of normal pulp tissue into granulomatous tissue with giant cells which resorb dentin. Though mostly idiopathic in origin, trauma, caries and restorative procedures have also been suggested to be contributing factors of internal resorption of pulp. Most of the internal resorp...
متن کاملForceps extraction of teeth with severe internal root resorption.
Many treatment plans require a dental practitioner to maintain the entire labial cortical plate of bone when removing an anterior maxillary tooth. A tooth with an undermined root secondary to an endodontic perforation or internal (Idiopathic) resorption can present a surgical challenge to the general practitioner. This article describes a new technique for extracting a severely undermined anter...
متن کاملInvestigation of Loading Parameters in Detection of Internal Cracks of Composite Material with Digital Shearography
Laser shearography is a speckle interferometric technique for full-field measurement of surface displacement derivatives. This technique has proved highly effective for nondestructive testing (NDT) of many kinds of material, especially composites. The key to the success of shearography as a NDT method is to impose an appropriate stress status on the object under test. In this paper mechanical l...
متن کاملA Partially Observable Markovian Maintenance Process with Continuous Cost Functions
In this paper a two-state Markovian maintenance process where the true state is unknown will be considered. The operating cost per period is a continuous random variable which depends on the state of the process. If investigation cost is incurred at the beginning of any period, the system wit I be returned to the "in-control" state instantaneously. This problem is solved using the average crite...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the American Dental Association
سال: 2018
ISSN: 0002-8177
DOI: 10.1016/j.adaj.2018.06.013