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Radiographic appearance and clinical implications of the presence of radix entomolaris and radix paramolaris
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Abstract
Background: The variation in mandibular molars’ anatomy is not as rare as it might appear to be. Depending on the location of the additional root found in a mandibular molar, it may be referred to as either radix entomolaris (RE) or radix paramolaris (RP). The aim of the study was to present radiographic appearance of RE and RP and indicate the clinical implications of its presence.
Materials and methods: The material consisted of 3,000 panoramic and 300 periapical radiographs of first and second mandibular molars taken in the Department of Dental and Maxillofacial Radiodiagnostics of the Medical University in Lublin which were screened for RE and RP.
Results: Among panoramic and periapical radiographs only 14 cases of additional roots were found: 11 teeth with RE/RP in the Polish population and 3 in Taiwanese. Only 2 panoramic radiographs revealed the presence of RE and surprisingly the occurrence was bilateral.
Conclusions: Dentists should not be taken by surprise at finding an additional root in mandibular molars. They should be aware of the anatomical diversity of these teeth and know how to recognise possible extra roots during radiograph reading.
Abstract
Background: The variation in mandibular molars’ anatomy is not as rare as it might appear to be. Depending on the location of the additional root found in a mandibular molar, it may be referred to as either radix entomolaris (RE) or radix paramolaris (RP). The aim of the study was to present radiographic appearance of RE and RP and indicate the clinical implications of its presence.
Materials and methods: The material consisted of 3,000 panoramic and 300 periapical radiographs of first and second mandibular molars taken in the Department of Dental and Maxillofacial Radiodiagnostics of the Medical University in Lublin which were screened for RE and RP.
Results: Among panoramic and periapical radiographs only 14 cases of additional roots were found: 11 teeth with RE/RP in the Polish population and 3 in Taiwanese. Only 2 panoramic radiographs revealed the presence of RE and surprisingly the occurrence was bilateral.
Conclusions: Dentists should not be taken by surprise at finding an additional root in mandibular molars. They should be aware of the anatomical diversity of these teeth and know how to recognise possible extra roots during radiograph reading.
Keywords
anatomy variation, cone beam computed tomography, mandibular molars anatomy, radix entomolaris, radix paramolaris, radiological examination
About this articleTitle
Radiographic appearance and clinical implications of the presence of radix entomolaris and radix paramolaris
Journal
Issue
Article type
Original article
Pages
449-454
Published online
2014-11-28
Page views
2106
Article views/downloads
3859
DOI
10.5603/FM.2014.0067
Bibliographic record
Folia Morphol 2014;73(4):449-454.
Keywords
anatomy variation
cone beam computed tomography
mandibular molars anatomy
radix entomolaris
radix paramolaris
radiological examination
Authors
T. K. Różyło
M. J. Piskórz
I. K. Różyło-Kalinowska
