scholarly journals Mandibular Anterior Nutrient Canals in Periapical Radiography in Relation to Hypertension

2013 ◽  
Vol 6 (1) ◽  
Author(s):  
Morteza Abdar-Esfahani ◽  
Mojdeh Mehdizade
Keyword(s):  
Nutrient Canals ◽  
Periapical Radiography

scholarly journals Performance of deep learning technology for evaluation of positioning quality in periapical radiography of the maxillary canine

2021 ◽  
Author(s):  
Mizuho Mori ◽  
Yoshiko Ariji ◽  
Motoki Fukuda ◽  
Tomoya Kitano ◽  
Takuma Funakoshi ◽  
...  
Keyword(s):  
Deep Learning ◽  
Characteristic Curve ◽  
Classification Performance ◽  
Learning Systems ◽  
Learning Technology ◽  
System 2 ◽  
Potential Benefits ◽  
System 1 ◽  
Periapical Radiography

Abstract Objectives The aim of the present study was to create and test an automatic system for assessing the technical quality of positioning in periapical radiography of the maxillary canines using deep learning classification and segmentation techniques. Methods We created and tested two deep learning systems using 500 periapical radiographs (250 each of good- and bad-quality images). We assigned 350, 70, and 80 images as the training, validation, and test datasets, respectively. The learning model of system 1 was created with only the classification process, whereas system 2 consisted of both the segmentation and classification models. In each model, 500 epochs of training were performed using AlexNet and U-net for classification and segmentation, respectively. The segmentation results were evaluated by the intersection over union method, with values of 0.6 or more considered as success. The classification results were compared between the two systems. Results The segmentation performance of system 2 was recall, precision, and F measure of 0.937, 0.961, and 0.949, respectively. System 2 showed better classification performance values than those obtained by system 1. The area under the receiver operating characteristic curve values differed significantly between system 1 (0.649) and system 2 (0.927). Conclusions The deep learning systems we created appeared to have potential benefits in evaluation of the technical positioning quality of periapical radiographs through the use of segmentation and classification functions.

scholarly journals Prevalence of nutrient canals in diabetes mellitus and hypertension: A radiographic study

2013 ◽  
Vol 5 (5) ◽  
pp. 21 ◽  
Author(s):  
Sudhaa Mani ◽  
Harsha Vardhan ◽  
Ravindranath ◽  
James Manohar ◽  
Jayakrishna ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Radiographic Study ◽  
Nutrient Canals

Evaluation of alveolar bone density by intraoral periapical radiography

2014 ◽  
Vol 52 (3) ◽  
pp. 233
Author(s):  
Eun-Jin Park ◽  
David-Hyungjin Kim ◽  
Eun-Suk Kim
Keyword(s):  
Bone Density ◽  
Alveolar Bone ◽  
Periapical Radiography

Orthodontically induced root resorption – a literature review

2019 ◽  
Vol 24 (2) ◽  
Author(s):  
Anna Pogorzelska ◽  
Anna Stróżyńska-Sitkiewicz ◽  
Kazimierz Szopiński
Keyword(s):  
Orthodontic Treatment ◽  
Root Resorption ◽  
Dental Treatment ◽  
Diagnostic Methods ◽  
Cone Beam ◽  
Permanent Teeth ◽  
Therapeutic Measures ◽  
Cervical Area ◽  
Periapical Radiography

Root resorption in moved teeth is a common undesirable side effect of orthodontic treatment. This pathology usually affects permanent teeth. Although any part of the root may be involved, the apical or cervical area is usually affected. The formation and development of these changes are a long-term process and depend on various factors. The etiology of resorptive changes associated with orthodontic treatment has been widely discussed by many authors, who proposed numerous classifications. Particularly noteworthy are the works on techniques for the treatment of malocclusion and their potential adverse effects. Modern diagnostic methods allow for an early detection of this pathology and the implementation of appropriate therapeutic measures. These techniques include periapical radiography (paralleling technique) combined with cone-beam computed tomography. Dentists not only notice the need to achieve a beautiful smile, but they also take into account possible root shortening. This process is not fully understood, but realizing its existence is important for planning and implementing both orthodontic and general dental treatment.

Prognosis of root canal treatment in teeth with preoperative apical periodontitis: a study with cone‐beam computed tomography and digital periapical radiography

2019 ◽  
Vol 52 (11) ◽  
pp. 1533-1546 ◽  
Author(s):  
F. A. Restrepo‐Restrepo ◽  
S. J. Cañas‐Jiménez ◽  
R. D. Romero‐Albarracín ◽  
P. A. Villa‐Machado ◽  
M. I. Pérez‐Cano ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Canal ◽  
Apical Periodontitis ◽  
Root Canal Treatment ◽  
Cone Beam ◽  
Periapical Radiography
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