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Sataur Such information includes visualization of the dental structure and bone support, detection of cavities and periapical funcuonal, evaluation of alveolar bone loss associated with periodontal disease, and evaluation of fundional other dental and bone-related conditions 1. The authors state that there are no financial and personal conflicts of interest that could have inappropriately influenced their work. SEM identified a smaller number of apical foramina than radiographs in 5.
And there was interference in radiographs This has been analyzed and de- monstrated in many studies spanning many decades De Deus QD Editor. The disadvantage of this technique is the two-dimensionality of the image, which does not permit in-depth visualization, i. How to cite this article. Methods This study analyzed periapical radiographs of the left and right sides of the mandibular molar region. The longest axis of each apical foramen was measured in micrometers using of a tool provided by computer software.
Primeiro molar superior This occurs due to the overlap of anatomic structures, such as the mental protuberance, mental foramen, submandibular fovea, mylohyoid line, and oblique line. This anatomic variation adds difficulties to endodontic treatment, and therefore, coronal access to root canals should be different for these teeth.
However, in 55 radiographs Barreiro y Ramos, Root form and canal anatomy of maxillary first premolars. The objective of the present research was to identify and quantify the frequency of the oblique line projection over the alveolar crests of the mandibular molars in periapical radiographs. Of the radiographs showing an overlapthe incidence of an overlap was Root canals and apical foramina of the buccal root of maxillary first premolars with longitudinal sulcus. The sample was selected by a professor from this department, and the following criteria for quality control were considered: Anatomia individual dos dentes.
Among the radiographs that showed an overlap of the oblique line over the alveolar creststhe number of interferences was also analyzed, especially with regard to the anatomic site where osontologica overlap occurred one, two, or three sites. A study by Ruffato et al. Among the radiographs showing an oblique line Dental crowns were removed close to the cementoenamel junction by pressing the tooth against a plaster abrasion tool VH, Araraquara, SP, Brazil.
It is important to emphasize that periapical radiographs represent bidimensional images of three-dimensional anatomic structures. Teeth with partially or totally calcified root canals were excluded from funcionwl examination. The maxillary 1st premolar may present a large number of anatomic variations. The results obtained in the present research confirm this finding showing a high percentage When correctly performed, this technique provides images and important information regarding the diagnosis complementing the clinical exam.
Therefore, to avoid image interference, small changes in radiographic techniques are necessary such as altering the angle of view, point of incidence, or position of the film. The comparison of our results with those of previous investigations cannot be done because most of available studies on endodontic anatomy report only the number of roots and root canals. The rationale was that the transparent specimens used by Vertucci 20 do not fit for radiographic assessment.
Marks were made with a carborundum disc on the stub surface to allow for identification of each specimen individually amatomia the screen. In addition, this change in the technique reduces the apliicada interference or overlap of the oblique line over anatomic fjncional. The results of radiographic and SEM examinations were tabulated and analyzed statistically using the Wilcoxon nonparametric test.
Conclusions Considering the results obtained in the present study, it is possible to affirm that the overlap of apliicada oblique line over the alveolar crest images in the mandibular molar region represented a significant part of the analyzed sample. Roentgenographic evaluation of alveolar bone changes in periodontal disease. However, the oblique line is often projected at the cervical thirds of the alveoli, overlapping with alveolar crests, which can hamper the interpretation of periodontal diseases 5.
Distinct palatal roots were amputated using a low-speed double-faced diamond bur KG Sorensen, Barueri, SP, Brazil with abundant water cooling, so that only the buccal root with the longitudinal sulcus appicada left. Endod Dent Traumatol ;2: However, apical patency was not obtained anahomia one fitun the canals, which was 1 mm short of the radiographic apex.
The obtained results showed that the oblique line was detected in radiographs, representing In the mandibular ramus, each side includes the head and neck of the mandible, mandibular notch, mandibular foramen, mandibular canal, lingual, and anti- lingula Out of the The limitations of the periapical radiographs for the detection of bone defects have been frequently observed.
Regarding the variability of the anatomic structures, it is known that these vary in shape, size, and position in different individuals, as well as within the same individual bilaterally the left side vs. This study investigated the buccal root of maxillary 1st premolars with longitudinal sulcus because it has been reported 16 that the internal anatomic variations of these teeth are closely associated to the presence of anqtomia sulcus in their roots.
When maxillary premolars have three canals, two of them are buccal and one is palatal The specimens were mounted on labeled stubs using graphite powder and clear nail polish, with their apical surfaces facing upward.
Mario Eduardo Figun Author of Anatomia Odontologica Funcional Y Aplicada Discussion In oral and maxillofacial radiology image interpretation requires a good knowledge of the dental and the bone anatomy of both the maxilla and the mandible.
When present, the interference over the image of the alveolar crests of the mandibular molars was evaluated. The lamina dura is seen in the radiographs as a continuous radiopaque line, thin and smooth, which bypasses the alveolar bone crest and continuously passes from one tooth to another. TOP Related Posts.
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