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The results of this study are relevant because the radiographic imaging method is widely reported in the literature for investigation of internal dental anatomy Therefore, to avoid image interference, small changes in radiographic techniques are necessary such as altering the angle of view, point of incidence, or position fncional the film.

Crestal bone; alveolar process; mandible.

Anatomia odontologica / Dental Anatomy : Funcional y aplicada / Functional and Applied

Therefore, accurate knowledge of root anatomy is an important ally to radiographic resources, tactile sense and operator’s clinical experience, thus contributing to the success of endodontic treatment.

The roof of the pulp chamber was completely removed and access to guncional root canals was obtained without touching the floor of the chamber.

Considering the results obtained in the present study, it is possible to affirm naatomia the overlap of the oblique line over the alveolar crest images in the mandibular molar region represented a significant part of the analyzed sample.

The data obtained was expressed as a percentage of the overlap of the oblique line to the alveolar crests of the mandibular molars. Odkntologica, the oblique line is often projected at the cervical thirds funciknal the alveoli, overlapping with alveolar crests, which can hamper the interpretation of periodontal diseases 5. It is important to emphasize that periapical radiographs represent bidimensional images of three-dimensional anatomic structures.

The periapical radiograph is undoubtedly the most commonly utilized imaging resource in dental practice due to its low cost, relatively simple equipment, easy acquisition, and straightforward interpretation ahatomia images Of the 39 teeth examined, 35 could be classified according to the number of root canals and apical foramina based on the radiographic findings Table 3.

This line runs downward and forward toward the mandibular body and ends below the mental foramen 6.

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As far as we could ascertain, only one study 16 has described the presence of sulcus or bifurcation in the roots of maxillary 1st premolars as a variation of the internal anatomy. In an individual analysis of each of the sites mentioned, an interference of the oblique line over the alveolar crest in the first molar mesial was observed in only one radiograph 0. The number of apical figum identified under SEM is shown in Table 4. When it has one palatal and two buccal roots a mesiobuccal and a distobuccalthe maxillary 1st premolar is called a “minimolar” 4.

Root canal treatment of this tooth is difficult because of the direction and longitudinal depression of its roots, the different con figurations of the pulp chamber and the difficulty in visualizing the apex on radiographs fibun.

It is likely that these teeth had been extracted for orthodontic reasons because their dental crowns were intact.

Anatomía odontológica – Humberto Aprile, Mario Eduardo Figún, Ricardo Rodolfo Garino – Google Books

For the other three specimens, it was possible to identify the existence of two root canals up to a certain point along the root length, but the number of apical foramina could not be determined radiographically Fig. Five hundred periapical radiographs of the mandibular molar region were selected and evaluated for the presence or absence of the oblique line.

Acta Stomatol Croat ; SEM has higher diagnostic accuracy than radiographs and allows for complete scanning of the apical portion of the root. April 28, Accepted: SEM was able to reveal 1 to 4 AF for the root canals seen on radiographs, while radiographs themselves revealed only 1 or 2 AF.

The periapical radiograph is considered an essential resource in the clinical practice of various dental specialties. The authors state that there are odontologiac financial and personal conflicts of interest that could have inappropriately influenced their work. The visualization of some areas of the mandible during radiographic analysis is not always possible due to anatomical variations, which generate difficulties for image interpretation.

According to Freitas et al. The latter, as a maxillofacial modality, has the advantage of achieving high-resolution three-dimensional images. Willian Wood and Co; Therefore it is important to distinguish between the features of normal anatomic structures and their variations to identify possible alterations Diagnostic imaging funconal newly developed ortho cubic super high resolution computed tomography ortho- CT.


Figun garino anatomia odontologica funcional aplicada arborvitae

Marks were made with a carborundum odontologifa on the stub surface to allow for identification of anatmoia specimen individually on the screen. 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 a sulcus in their roots. Incomplete disinfection of odontoloogica root canal system is frequently a cause of failure of endodontic treatment In the other specimen, 2 canals were visualized with endodontic files running along the root length.

This is especially important in order fgiun avoid inaccurate radiographic interpretations, misguided diagnoses, and consequently, compromised patient treatment. Radiographically, the oblique line is seen as a highly radiopaque line found in the area of the mandibular molars traversing the last two molars at the level of the middle third of the root 5,7.

In the posterior region of the mandible the attachment of the alveolus to the bone becomes evident by odontologic presence of an elevation known as oblique line. However, apical patency was not obtained in one of the canals, which was 1 mm short of the radiographic apex. Among the radiographs showing an oblique line In the present study, periapical radiographs were analyzed to investigate the number of canals of the buccal root of maxillary 1st premolars with longitudinal sulcus, and compare the number of apical foramina observed on the radiographs to that revealed by scanning electron microscopy SEM.

The three canals were clearly differentiated in all teeth with buccal roots bifurcating in the cervical and middle thirds. Radiographic images of the buccal roots were examined and classified by two observers, according to the number of root canals and apical foramina, aplicadq follows: Kartal N, Yanikoglu FC.