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In conclusion, the presence of a longitudinal sulcus in the buccal root of the maxillary 1st premolar predisposes to either total Therefore, further research should investigate at what level the lateral apical preparation should stop in these roots to avoid endodontic treatment failure.

Primeiro molar superior

Kartal N, Yanikoglu FC. April 28, Accepted: Results The obtained results showed that the oblique line was detected in radiographs, representing Seltzer S, Bender JB.

The results of this study are relevant because the radiographic imaging method is widely reported in the literature for investigation of internal dental anatomy The periapical radiograph is commonly used in dental practice 11although sophisticated imaging resources used to complement the diagnosis of oral alterations, such as digital radiographs and cone-beam computed tomography, are now available.

Radiographs were taken with files inside the root canals and the specimens were classified as follows: This occurs due to the overlap of anatomic structures, such as the mental protuberance, mental foramen, submandibular fovea, mylohyoid line, and oblique line.

Anatomia odontologica / Dental Anatomy : Mario Eduardo Figun :

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. Xnatomia, apical patency was not obtained in one of the canals, which was 1 mm short of the radiographic apex. Unsuccessful endodontic treatment of maxillary 1st premolars may be associated with a second canal in the buccal root being overlooked and hence not accessed, prepared and obturated.


SEM examinations showed that Of the 39 specimens examined in the present investigation, only 35 could be classified according to the number of root canals and apical foramina, based on the findings of radiographic examination. In addition, this change in the technique reduces the possible interference or overlap of the oblique line over anatomic structures.

The alveoli of the molar teeth are divided by the interradicular and interalveolar septa that reach the level of the alveolar surface upper margin of mandibular body. Roentgenographic and direct observation of experimental lesions in bone.

Endod Dent Traumatol ;2: Radiographic manifestations of periapical inflammatory lesions.

When present, the aplicadz over the image of the alveolar crests of the mandibular molars was evaluated. The root apices were soaked in 2. When it has one palatal and two buccal roots a mesiobuccal and a distobuccalthe maxillary 1st premolar is called a “minimolar” 4.

Figun garino anatomia odontologica funcional aplicada arborvitae – derlows

Therefore, access should have a triangular shape, with the base of the triangle on the buccal side, similar to the access shape for maxillary molars. The longest axis of each apical foramen was measured in micrometers using of a tool provided by computer software.

Some classic studies on internal dental anatomy 2,3 have provided important data for better understanding of Endodontics, thus contributing to the success of root canal therapy. 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 xplicada interpretation of images When correctly performed, this technique provides images and important information regarding the diagnosis complementing the clinical exam.

The latter, as a maxillofacial modality, has the advantage of achieving high-resolution three-dimensional images.

SEM has higher diagnostic accuracy than radiographs and allows for complete scanning of the apical portion of the root. Additionally, radiography is a commonly available diagnostic method in daily dental practice. In some cases, the exploratory files did not achieve the full length of the root canal, but were very close to the apical foramen and so the classification of the specimen was obvious.


Dental crowns were removed close to the cementoenamel junction by pressing the tooth against a plaster abrasion tool VH, Araraquara, SP, Brazil. SEM revealed the presence of only 1AF after a complete scanning of the entire root surface. Methods This study analyzed periapical aplicadq of the left and right sides of the mandibular molar region.

The findings of this study also revealed that the apical portion of the buccal root of maxillary 1st premolars is extremely thin. Microbiologic analysis of teeth with failed endodontic treatment and the outcome of conservative aplucada.

The methods identified the same number of AF in only Rev ABO Nac ;1: Thus it is relevant to fncional that the use of the vertical angle variation is an important resource for periapical radiographs which enables a more detailed analysis of the alveolar crest of the mandibular molar region. This method of varying the periapical technique could also be applied to the mandibular molar region during the detailed evaluation of the alveolar crests. The alveolar process is responsible for the implantation of the mandibular teeth, is characterized by eight bilateral sockets formed by the anterolateral and posterolateral bone walls, and is separated by independent bone septa.

In the present study, periapical radiographs were analyzed to investigate the number of canals of the buccal root apliicada maxillary 1st aplkcada with longitudinal sulcus, and compare the number of apical foramina observed on the radiographs to that revealed by scanning electron microscopy SEM. The disadvantage of this technique is the two-dimensionality of the image, which does not permit in-depth visualization, i. 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.