What are the usual anatomic structures that can be seen in a maxillary occlusal projection?
7): The anatomic structures from the maxillary lat- eral area that are seen on the occlusal radiographys are: (A) Lateral wall of maxillary sinus, (B) Nasal fossa, (C) Lateral wall of nasal fossa, (D) Intermaxillary suture, (E) Inverted “Y”. 5) Cephalometric radiographs (Fig.
What is an occlusal radiograph?
An intra-oral radiograph placed with the film between occluded teeth. It may be taken to show the upper anterior teeth (standard upper occlusal) or posterior teeth ( upper oblique occlusal) or the mandibular teeth ( lower true occlusal, lower 45° occlusal or lower oblique occlusal) Occlusal radiograph.
What is maxillary occlusal radiograph?
The maxillary lateral occlusal radiograph is made using a size 4 film/phosphor plate with the long axis parallel to the facial surfaces of the posterior teeth. The central ray (PID) is aimed with a vertical angle of +60 to +70 degrees and centered slightly inferior to the corner of the eye.
What are the maxillary landmarks?
The maxilla is the upper dental arch that contains the maxillary alveolar process, the maxillary teeth and the maxillary sinuses. It sits on either side of the nasal cavity and below the orbits.
Which tooth has the longest root?
Canine teeth often have the longest root of all teeth in the human mouth and the last to fully erupt and fall into place; often around age 13. An impacted tooth essentially means that it is blocked, stuck, or unable to fully erupt and function properly.
What is Y line of Ennis?
Y line of Ennis 2 Definition: An anatomical landmark created by the superimposition of the floor of the nasal cavity and the border of the maxillary sinus. Radiographic Features: Location: Most commonly found superior to the maxillary canine apex.
What is the primary purpose of an occlusal radiograph?
Periapical/occlusal radiographs are indicated for identifying or confirming pathology, evaluating dental development, dento-alveolar trauma, deep carious lesions, periapical pathology and oral involvement of systemic disease.
What is the use of occlusal radiograph?
Occlusal X-rays show the roof or floor of the mouth and are used to find extra teeth, teeth that have not yet broken through the gums, jaw fractures, a cleft palate, cysts, abscesses or growths. Occlusal X-rays may also be used to find a foreign object.
What is the occlusal technique?
Occlusal: Purpose and Use. -A supplementary imaging technique used in conjunction with periapical or bite-wing images. -Used when large areas of the maxilla or mandible must be visualized.
What are the 3 landmarks of oral cavity?
Landmarks of the oral tissues include the palate, tongue, cheeks and floor of the mouth. It is significant to recognize the normal appearance of these structures during an intraoral examination of the patient.
What is maxillary process?
: a triangular embryonic process that grows out from the dorsal end of the mandibular arch on each side and forms the lateral part of the upper lip, the cheek, and the upper jaw except the premaxilla.
Can a tooth have 3 roots?
Three-rooted molars are oddities in most modern dental practices. Molars generally have just two roots, but occasionally a third, smaller root grows. In Europe and Africa, fewer than 3.5% of people have such teeth.