Coupling image processing and stress analysis for damage identification in a human premolar tooth

Computer Methods and Programs in Biomedicine
U AndreausD Iacoviello

Abstract

Non-carious cervical lesions are characterized by the loss of dental hard tissue at the cement-enamel junction (CEJ). Exceeding stresses are therefore generated in the cervical region of the tooth that cause disruption of the bonds between the hydroxyapatite crystals, leading to crack formation and eventual loss of enamel and the underlying dentine. Damage identification was performed by image analysis techniques and allowed to quantitatively assess changes in teeth. A computerized two-step procedure was generated and applied to the first left maxillary human premolar. In the first step, dental images were digitally processed by a segmentation method in order to identify the damage. The considered morphological properties were the enamel thickness and total area, the number of fragments in which the enamel is chipped. The information retrieved by the data processing of the section images allowed to orient the stress investigation toward selected portions of the tooth. In the second step, a three-dimensional finite element model based on CT images of both the tooth and the periodontal ligament was employed to compare the changes occurring in the stress distributions in normal occlusion and malocclusion. The stress states were an...Continue Reading

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Citations

Oct 9, 2013·Computer Methods and Programs in Biomedicine·Ugo AndreausDaniela Iacoviello
Jan 21, 2014·Computer Methods and Programs in Biomedicine·Zhigang WeiXinyuan Chen
May 21, 2015·Dental press journal of orthodontics·Luegya KnopMarcia Regina Elisa Aparecida Schiavon Gandini
Feb 3, 2016·Biomechanics and Modeling in Mechanobiology·Ivan GiorgioFrancesco dell'Isola
May 8, 2018·Journal of Prosthodontic Research·Ebrahim MaghamiJames Kit-Hon Tsoi
Dec 13, 2016·L' Orthodontie française·Emmanuel Frèrejouand
May 24, 2018·Dental press journal of orthodontics·Mari Miura SugiiRicardo Armini Caldas
Apr 15, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Ehsan HomaeiKhalil Farhangdoost

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