Cone beam computed tomography observations of the lingual foramina and their bony canals in the median region of the mandible

Vol. 52 No. 3 Suppl., 2011
This supplement was not sponsored by Outside Organizations.

ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Iuliana Babiuc, Ioana Tarlungeanu, Mihaela Pauna

Purpose: To investigate by means of CBCT the presence of lingual foramina and their bony canals in the midline of the mandible and to describe their anatomical characteristics. Materials and Methods: CBCT examinations of 36 patients were carefully examined in the median region of the mandible in order to detect the lingual foramina and their corresponding vascular canals. Their presence, number, position, diameter and trajectory were established. Results: Lingual foramina in the midline of the mandible were observed in all 36 subjects. The number of canals varied from one to four, with the following distribution: one canal in 71.9% of the cases, two canals in 9.4%, three in 15.6%, and four canals in 3.1% of the cases. The average diameter of the canals was 0.84 mm. The average distance from the foramina to the base of the mandible was of 11.2 mm. 19.4% of the vascular canals penetrated only the lingual third of the width, 52.8% reached the middle third of the mandible and 27.8% of the canals spread to the buccal third. Conclusions: CBCT is a useful tool in planning an implant treatment. It can reveal multiple anatomic features of the mandible, including the presence and the morphology of the lingual foramina and their vascular canals in the median region of the mandible. Clinicians should acknowledge the presence of these anatomical structures and should be aware of their possible implications.

Corresponding author: Iuliana Babiuc, PhD student, e-mail: iuliba@yahoo.com

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ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Carmen Aurelia Mogoanta, Daniela Adriana Ion, G. Stanciu, Elena Ionita, Adriana Bold, Garofita Olivia Mateescu, O. T. Pop, Irina Gheorghisor

Oropharyngeal cancer, and especially squamous cell carcinoma, is one of the most common cancers worldwide, and its incidence is increasing, with the palatine tonsil being one of the main locations. The etiopathogenic factors, together with its location as well as the available immunohistochemical methods, make this type of cancer an accessible one in terms of diagnosis. However, it is usually diagnosed in late stages. Therefore, we tried to elucidate the causes of treatment failures and development of local recurrence. For this, we reassessed the proliferative pattern of tonsil lesions using the anti-p53, anti-PCNA and anti-Ki67 antibodies on 73 tonsil fragments collected after curative surgery on adults aged between 28 and 86 years. Following the reevaluation of the histopathological examination using markers for cell proliferation, the diagnosis was modified in 16 cases, representing about 22% of the cases take into study. By using immunohistochemical markers in the histopathological examination the diagnosis is improved, leading to a more appropriate therapeutical approach.

Corresponding author: Carmen Aurelia Mogoanta, MD, PhD, e-mail: carmen_mogo@yahoo.com

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