The Appearance of The Infraorbital Canal and Infraorbital Ethmoid (Haller’s) Cells on Panoramic Radiography of Edentulous Patients (original) (raw)
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European Archives of Oto-Rhino-Laryngology, 2015
This study aims to classify the infraorbital canal according to its position related to the maxillary sinus as observed by axial CT. It is a retrospective, cross-sectional study. This study was performed in a tertiary referral center. In this study, axial and coronal CTs of 750 patients were examined and infraorbital canals and neighboring structures were evaluated. Infraorbital canals were then classified according to their positions in relation to the maxillary sinus as seen in axial sections. Morphologic variations of neighboring structures were also noted and their correlations with specific canal types were investigated. Three types of infraorbital canal configurations were identified according to the canal's relationship with the maxillary sinus: Type 1, the infraorbital canal was totally protruding into the maxillary sinus (12.3 %); Type 2, the infraorbital canal was located at the floor of the maxillary sinus or was partially protruding into the maxillary sinus (51.2 %); Type 3, the infraorbital canal was totally embedded in the maxillary corpus or was bulging on the external face of the maxillary sinus (36.4 %). Concurrence of maxillary sinus septa and infraorbital canal type-1 was found to be statistically significant on both sides (right side p = 0.00, left side p = 0.00). The study radiologically classified the infraorbital canal according to its position as related to the anterior wall of the maxillary sinus, and found that the type where the canal was totally protruding into the maxillary sinus (type-1) had a significant rate of 12.3 %. The rate of the protruded infraorbital canal was doubled with the presence of maxillary sinus septa (25 %).
Infraorbital ethmoid (Haller's) cells: a panoramic radiographic study
Dentomaxillofacial Radiology, 2012
Objective: Haller's cells or infraorbital ethmoid cells refer to the ethmoidal pneumatization of the superior aspect of the maxillary sinus and floor of the orbit. The clinical importance of these entities initiated this study with an aim to determine the prevalence and characteristics of Haller's cells on panoramic radiographs. Methods: The study group comprised 600 healthy adults of both genders with an age range of 18-60 years. One panoramic radiograph for each of the patients was made and interpreted for the presence of Haller's cells. The data collected were subjected to statistical analysis: frequencies/percentages, descriptive statistics, x 2 test and cross-tabulation (contingency table analysis) to obtain the results. Results: Haller's cells were noted in 96 patients, accounting for a prevalence of 16%. Of these patients, 77.1% were unilateral while 22.9% were bilateral. Among 96 cases, a total of 204 cells were found. The majority of the cells were round or ovoid in shape. The unilocular type of Haller's cells occurring unilaterally was statistically significant. Conclusion: This study has attempted to explore the characteristics of Haller's cells on panoramic radiographs. A description of Haller's cells on these radiographs may prove vital in enumerating the differential diagnosis for patients afflicted with intractable orofacial pain and reduce the risk of untoward intraoperative complications during endonasal procedures.
Different Radiological Findings in Turkish Edentulous Patients
Objective: Radiological examination for the detection of asymptomatic pathology in edentulous patients is very important. The aim of this study is to evaluate different significant radiological findings in the panoramic radiographies, which were routinely taken for a group of edentulous patients. Materials and Methods: This study was performed on 200 edentulous patients who admitted for various reasons to Inonu University, Faculty of Dentistry, Department of Oral and Maxillofacial Radiology. Each radiograph was observed for retained roots, impacted teeth, radiolucency and radiopacity changes, maxillary sinus close to crest of the ridge and mental foramen on crest. The data were analyzed using descriptive statistics. Results: Radiological findings were found in 48% (56.03% female, 39,28% male) of edentulous patients. Patients examined in this study had retained roots as the most common positive findings (15%). Most of the findings were observed in patients between 45-60 years of age in this study. Conclusion: According to these results, panoramic radiography is still advisable to study before making the prosthesis to edentulous patients.
Study of the Mandibular Canal in Totally Edentulous Patients - Clinical Implications
2014
The absence of effective preventive dental programme leads to a multiplication of patients with single or multi-tooth edentations. Clinical and technical difficulties for prosthetic treatments appear in totally edentulous patients due to sharp bone atrophy. Depending on the mandibular reorganisation due to age and edentation, mandibular canal presents calibre (it diminishes) and position changes (it approaches to the alveolar mandibular ridge) modifications. Prosthetic treatments with dental implants imply a series of local and regional contraindications. In the present article, we studied a number of 32 computerised topographies (CT), on which we could establish the cranio-caudal and vestibulo-oral position of the mandibular canal. The CT also presents the relation of the mental foramen with the edentulous ridge. The relation of the mandibular canal with the alveolar ridge presents a very important aspect for establishing the treatment plan for the patient. The clinical safe-zone m...
Appearance of the mandibular incisive canal on panoramic radiographs
Surgical and Radiologic Anatomy, 2004
Panoramic radiographs are routinely used in the dental office for various diagnostic purposes. This study aimed to evaluate the visibility of neurovascular structures in the mandibular interforaminal region on such radiographs. Panoramic radiographs were obtained with a Cranex Tome (Soredex) from 545 consecutive patients using a standard exposure and positioning protocol. For visibility scoring of neurovascular structures, a four-point rating scale was used. The mandibular canal and the mental foramen could be observed in the majority of the cases with good visibility. The lingual foramen was visualized in 71% of the cases, with good visibility in 12%. An incisive canal was identified in 15% of the images, with good visibility in only 1%. An anatomical variation to be considered is the anterior looping of the mental nerve (in 11% of images). Panoramic radiographs can be used for visualization of the mental foramen and a potential anterior looping but not for locating the mandibular incisive canal. To verify its existence for preoperative planning purposes, cross-sectional imaging modalities (HR-CT or spiral tomography) should be preferred.
Effects of Edentulism on Mandibular Morphology: Evaluation of Panoramic Radiographs
The Scientific World Journal, 2014
Purpose. The objective of this study was to evaluate morphological changes of the mandible in edentulous and dentate subjects using panoramic radiographs.Materials and Methods. Panoramic radiographs were divided into the following three groups: Group I (completely edentulous group), Group II (old dentate group) and Group III (young dentate group). The research parameters of gonial angle, condylar height, ramus height, ramus notch depth, and antegonial notch depth were measured on panoramic radiographs. The Kruskal-Wallis statistical test was used to determine significant differences in mandibular morphological parameters among the three groups. The Mann-WhitneyUtest was used to compare the subgroups.Results. Significant differences were found only in ramus height between three groups. According to the Mann-WhitneyUtest, a significant difference was exhibited among Groups I and II in the ramus height parameter. No significant differences were found in the gonial angle, condylar heigh...
The radiological study of Ethmoidal infraorbital ( Haller ’ s ) cells among adult Sudanese Subjects
2017
Ethmoidal infraorbital (Haller’s) cells are extensions of ethmoidal air cells into the areas of the orbit and maxillary sinus. They are located on the maxillary sinus roof, near and above the ostium of maxillary sinus at the inferior wall of the orbit and lateral border of the infundibulum. Ethmoidal Infraorbital cells may be visualized by a variety of imaging methods that show a view of the maxillary sinus. This study aimed to determine the prevalence of ethmoidal infraorbital cell on CT scan in Sudanese population and to compare them statistically with available data worldwide. The study population involved 29 males (47.5%) and 32 females (52.5 %) with a mean age of 37 years. They were explored in the radio-diagnostic department of Ribat University Teaching Hospital, KhartoumSudan in the period from March to September 2015. Patients were scanned on slice collimation of 1mm thickness with slice thickness of 4 mm. CT scans were reviewed in axial, coronal, and sagittal planes in bony...
Universal Journal of Pharmaceutical Research
Background and Objectives: The mandibular canal is a canal inside the mandible that contains the inferior alveolar artery, the inferior alveolar nerve and the inferior alveolar vein. The anatomy and variations of the human mandible are very important for planning various surgical measures such as extraction of the third molar, dental implants and mandibular reconstruction. This study was conducted to determine the frequency of the different courses of the mandibular canal and to investigate the visibility of the mandibular canal by panoramic radiography, among a sample of Yemeni adults. Subjects and Methods: A retrospective cross-sectional study was conducted in Sana'a city on a sample of Yemeni adults. The study consisted of panoramic radiographs of 928 patients; the number of males was 340 (36.6%) and 588 females (63.4%). The mandibular canal course, as shown in the panoramic radiographs, was classified into four types: elliptical, linear, turning curves and spoon-shaped. Th...