Yeditepe J Dent. 2018; 14(2): 31-36 | DOI: 10.5505/yeditepe.2018.74745

Mandibular anatomik varyasyonlarýn tespit edilmesinde panoramik radyografi ve konik ýþýnlý bilgisayarlý tomografinin karþýlaþtýrýlmasý

Ömür Dereci
Eskiþehir Osmangazi Üniversitesi, Diþ Hekimliði Fakültesi, Aðýz, Diþ ve Çene Cerrahisi Anabilim Dalý, Eskiþehir, Türkiye

GÝRÝÞ ve AMAÇ: Bu çalýþmanýn amacý mandibulada görülen anatomik varyasyonlar olan aksesuar mental foramen (AMF), retromolar foramen (RF), bifid mandibular kanal (BMK), mandibular insiziv kanal (MÝK) ve lingual foramenin (LF) teþhisinde panoramik radyografi (OPG) ve konik ýþýnlý bilgisayarlý tomografinin (KIBT) etkinliklerinin karþýlaþtýrýlmasýdýr.
YÖNTEM ve GEREÇLER: Kliniðimizde 01/04/2013-01/04/2017 tarihleri arasýnda tedavi edilmiþ 189 hastanýn klinik ve radyografik verileri retrospektif olarak deðerlendirildi. Çalýþmaya dahil edilen hastalarýn hem OPG görüntüleri hem de KIBT kesitleri AMF, RF, BMK, MÝK ve LF varlýðý açýsýndan iki araþtýrmacý tarafýndan incelendi. Araþtýrmacýlar Cohen Kappa testi ile kalibre edildi (p<0.05). KIBT ve OPG arasýndaki istatistiksel fark McNemar testi ile deðerlendirildi. p<0.05 istatistiksel olarak anlamlý kabul edildi.
BULGULAR: Ýki radyografi tekniði arasýnda AMF, RF ve BMK’nin tespiti açýsýndan istatistiksel olarak anlamlý bir fark bulunmazken (p>0.05), MÝK ve LF insidanslarý açýsýndan istatistiksel olarak anlamlý fark bulundu (p<0.05).
TARTIÞMA ve SONUÇ: KIBT, MÝK ve LF teþhisinde OPG’den daha baþarýlýdýr. Mandibula interforaminal bölgeye yapýlacak cerrahi planlamalarda ileri görüntüleme tekniklerinin kullanýlmasý, öngörülemeyen komplikasyonlarý önlemek açýsýndan önem taþýmaktadýr.

Anahtar Kelimeler: Mandibular insiziv kanal, lingual foramina, retromolar foramen, bifid kanal, aksesuar mental foramen, anatomik varyasyon

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Comparison of panoramic radiography and cone beam computed tomography in the detection of mandibular anatomic variations

Ömür Dereci
Eskisehir Osmangazi University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Eskisehir, Turkey

INTRODUCTION: The aim of this study is to compare the efficiency of panoramic radiography (OPG) and cone beam computed tomography (CBCT) in the diagnosis of mandibular anatomical variations of accessory mental foramen (AMF), retromolar foramen (RF), bifid mandibular canal (BMC), mandibular incisive canal (MIC) and lingual foramen (LF).
METHODS: Clinical and radiological data of 189 patients, who were treated between 01/04/2013-01/04/2017, were retrieved from archieves and evaluated retrospectively. The anatomical variations of AMF, RF, BMC, MIC and LF were detected on both OPG and CBCT sections for all included patients by two researchers. The researchers were calibrated with Cohen’s Kappa test (p<0.05). Statistical significance between OPG and CBCTwas evaluated with McNemar’s test. p<0.05 was taken statistically significant.
RESULTS: There was no statistically significant difference between radiography techniques in the detection of AMF, RF and BMC (p>0.05), whereas, MIC and LF incidences were found to be significantly different between two imaging modalities (p<0.05).
DISCUSSION AND CONCLUSION: CBCT was significantly more efficient than OPG in the diagnosis of MIC and LF. In order to prevent unforeseen complications, advanced imaging techniques should be used in the interforaminal region during pre-surgical planning of oral surgical procedures.

Keywords: Mandibular incisive canal, lingual foramina, retromolar foramen, bifid canal, accessory mental foramen, anatomic variation

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