Fibromyxoma of the jaw is a rare benign mesenchymal odontogenic tumor with locally aggressive behavior. In the present report, a 13-year-old female patient presented to our university hospital with delayed eruption of some of her teeth. A panoramic radiograph taken at the initial examination revealed four pericoronal radiolucencies related to the four third molars. Thereafter, a magnetic resonance imaging (MRI) examination was performed. After the surgical removal of these molars, the microscopic examination diagnosed the four lesions as fibromyxomas. Here, we have discussed the clinical, panoramic radiography, MRI, and histopathological findings of the case.
PurposeThis study aimed to investigate the effect of changing the kilovoltage peak (kVp) on the radiographic assessment of dental caries.Materials and MethodsSeventy-five extracted posterior teeth with proximal caries or apparently sound proximal surfaces were radiographed with conventional E-speed films and a photostimulable phosphor system using 60 kVp and 70 kVp for the caries assessment. The images were evaluated by three oral radiologists and compared with the results of the stereomicroscope analysis.ResultsNo statistically significant difference was found between 60 kVp and 70 kVp for the caries detection, determination of caries extension into dentin, and caries severity in either the conventional or the digital images. Good to very good inter-observer and intra-observer agreements were found for both kilovoltage values on the conventional and digital images.ConclusionChanging the kilovoltage between 60 kVp and 70 kVp had no obvious effect on the detection of proximal caries or determination of its extension or severity.
Aim: This study aimed to evaluate the patient perception towards osteotome and densah burs in sinus lifting procedures and to assess the new bone generated using CBCT at 6 months post-operatively. The study hypothesis was that densah bur would show comparable results to osteotome-mediated sinus lifting. Subjects and methods: Ten patients were enrolled in the study with atrophied maxillary posterior edentulous area that required rehabilitation with implants and sinus membrane elevation. Sinus membrane was elevated with two techniques, Osteotome and Densah bur sinus lifting procedures. Clinical (sinus perforation, post-operative swelling, and headache/vertigo) and radiographic parameters (residual bone height (RBH) and endo-sinus bone gain (ESBG)) were assessed. Result: In both groups, new bone levels were higher in comparison to initial levels with statistical significant difference. Densah bur showed higher mean ESBG than osteotome group with values 1.8 ± 0.4 and 1.4 ± 0.5 respectively (p = 0.21). Post-operative complications comparison showed non-significant differences between both groups except for headache and vertigo.
Conclusion:The protruded implants can act as tents and allow formation of blood clot with concomitant bone regeneration. Although the two techniques applied for drilling showed comparable radiographic results, however, they displayed differences in patient perception. According to this study, it can be concluded that osseodensification may surpass osteotome-lifting procedure when it comes to patient comfort and satisfaction.
Purpose
The aim of this study was to investigate the prevalence of infraorbital canal protrusion in an Egyptian subpopulation using cone-beam computed tomography and to describe its radiographic representation.
Materials and Methods
This retrospective cross-sectional study was conducted using the records of 77 patients and 123 maxillary sinuses. The full lengths of the sinuses were visible for the detection of infraorbital canal protrusion. The infraorbital canals were classified into 3 types based on their relation to the sinus. If the septum was present, its length and its distance from the sinus floor were measured. Qualitative and quantitative variables were described as percentages and means with standard deviations, respectively.
Results
The infraorbital canal most commonly presented as the normal confined type (detected in 78.1% of sinuses), whereas the suspended (or protruded) variant was found in 14.6% of the examined sinuses. The septal length ranged from 0.9 to 5.1 mm, with a mean of 2.8±1.1 mm. The distance to the sinus floor ranged from 5.2 to 29.6 mm depending on the sinus shape and size.
Conclusion
The present study indicates that protrusion of the infraorbital canal is not rare, and surgeons that use the maxillary sinuses as corridors for their procedures must be more cautious, especially in the upper lateral confines of the sinus.
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