نتایج جستجو برای: bitewing
تعداد نتایج: 248 فیلتر نتایج به سال:
OBJECTIVE To compare proximal caries detection using intraoral bitewing, extraoral bitewing and panoramic radiography. METHODS 80 extracted human premolar and molar teeth with and without proximal caries were used. Intraoral radiographs were taken with Kodak Insight film (Eastman Kodak Co., Rochester, NY) using the bitewing technique. Extraoral bitewing and panoramic images were obtained usin...
Bitewing Radiography Semantic Segmentation Base on Conditional Generative Adversarial Nets JiangYun;TanNing;ZhangHai;PengTingting 【Abstract】 Currently, Segmentation of bitewing radiograpy images is a very challenging task. The focus of the study is to segment it into caries, enamel, dentin, pulp, crowns, restoration and root canal treatments. The main method of semantic segmentation of bitewing...
OBJECTIVES To evaluate image quality for marginal bone tissue assessment on panoramic radiographs taken with the Scanora dental programme and on posterior bitewing radiographs. METHODS Panoramic and bitewing radiographs were taken of 96 patients. Six observers rated marginal bone level visibility as excellent, acceptable, or unacceptable. Five observers assessed image quality for detection of...
The objective of present study is to assess the depth of alveolar bone loss by using Conventional radiography (IOPA) and Digital radiography (RVG) technique in periodontitis as it affects the connective tissue attachment and supporting bone around the teeth. The study was carried out on 40 males and 10 females aged between 20 – 65 years who have generalized mild to severe chronic periodontitis....
BACKGROUND Dentists generally use a viewbox as the primary source of illumination when examining radiographs. Secondary sources of illumination (i.e., light other than that originating from the viewbox) can reduce radiographic contrast and may therefore affect diagnostic accuracy. OBJECTIVE To determine if the accuracy of identifying interproximal carious lesions on bitewing radiographs depen...
OBJECTIVES To compare panoramic radiographs made with the Scanora dental program and bitewing radiographs in the assessment of marginal bone tissue. MATERIALS AND METHODS Panoramic and posterior bitewing radiographs were made for 96 consecutive patients. Six observers assessed marginal bone level, and five observers identified the presence or absence of vertical bone defects and furcation inv...
PURPOSE The aim of this study was to compare the diagnostic accuracy of cone-beam computed tomography (CBCT) images and bitewing images in detection of secondary caries. MATERIALS AND METHODS One hundred and twenty proximal slots of Class II cavities were randomly prepared on human premolar and molar teeth, and restored with amalgam (n=60) and composite resin (n=60). Then, artificial secondar...
BACKGROUND Although numerous studies have used digital intraoral imaging, only a few studies have used photo-optical methods for the diagnosis of caries. Moreover, several limitations exist in terms of observers (experience and specialty) and the caries lesion itself. Hence, the aims of this study were to evaluate the diagnostic capability of near-infrared light transillumination (NILT) and PSP...
BACKGROUND AND OBJECTIVE Proximal caries detection is of great importance because of the rapid rate of caries progression and the difficulty in determining the absence or presence of a lesion in primary dentition. Although, various methods for caries diagnosis offer good diagnostic performances, they provide varying sensitivities for detecting proximal carious lesions. The objective of this stu...
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