Dental and Medical Problems

Dent Med Probl
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ISSN 1644-387X (print)
ISSN 2300-9020 (online)
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Dental and Medical Problems

2019, vol. 56, nr 1, January-March, p. 21–25

doi: 10.17219/dmp/102262

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Investigation of the determinants of the mandibular cortical morphology

Badanie determinant morfologii warstwy korowej żuchwy

Nagihan Koç1,A,B,C,D,F, Leyla Berna Çağırankaya1,A,C,E

1 Department of Dento-Maxillofacial Radiology, Faculty of Dentistry, Hacettepe University, Ankara, Turkey


Background. The mandibular cortical index (MCI) is a measurement based on the visual assessment of changes in the morphology of the mandibular cortex on panoramic radiographs.
Objectives. The present study aimed to investigate age, gender, dental status (DS), occlusal function, and presence of torus mandibularis (TM) as variables that might have a possible effect on MCI.
Material and Methods. A total of 381 patients (155 men and 226 women) aged 21–84 years (mean age: 43.8 ±14.5 years) were included in this study. Age, gender and DS were recorded for each patient. The occlusal function was evaluated using the Eichner index (EI). The presence of tori was assessed by visual inspection and digital palpation. The MCI assessments were done based on Klemetti’s classification (C1–C3). Statistical comparisons were performed using the χ2 test, independent samples t-test and multiple logistic regression analysis (p < 0.05).
Results. Significant differences were observed between the MCI categories regarding age, gender, DS, EI, and TM. The likelihood of the MCI categories C2 and C3 was increased in males (odds ratio (OR) 9.33; p < 0.001), when TM was absent (OR 2.73; p < 0.001), in EI Class B (OR 2.68; p = 0.027), and in the age group 50–70 years (OR 2.5; p = 0.018).
Conclusion. Morphological changes of the mandibular cortical bone are related to gender, presence of TM, occlusal function expressed as EI, and age.

Key words

panoramic radiography, mandibular cortical morphology, bone hyperplasia

Słowa kluczowe

radiografia panoramiczna, morfologia warstwy korowej żuchwy, hiperplazja kości

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