Unusual root morphology in second mandibular molar with a radix entomolaris, and comparison between cone-beam computed t
- PDF / 3,360,181 Bytes
- 6 Pages / 595.276 x 793.701 pts Page_size
- 55 Downloads / 180 Views
JOURNAL OF MEDICAL
CASE REPORTS CASE REPORT
Open Access
Unusual root morphology in second mandibular molar with a radix entomolaris, and comparison between cone-beam computed tomography and digital periapical radiography: a case report Elisardo López-Rosales1*, Pablo Castelo-Baz1, Roland De Moor2, Manuel Ruíz-Piñón1, Benjamín Martín-Biedma1 and Purificación Varela-Patiño1
Abstract Introduction: Radix entomolaris presents with an unusual morphology and is a rare occurrence. It is mainly observed in mandibular first molars. The incidence varies in different populations but it is far from common. This is especially true for mandibular second molars which possess the lowest prevalence. Some case reports have shown the presence of this finding in mandibular second molars; however, cases of patients of a white background have not been reported. Case presentation: The diagnosis and treatment of an infected radix entomolaris in a mandibular second molar in a 45-year-old white man is presented. The diagnosis was made with standard endodontic techniques. Conventional radiographic imaging was augmented with cone-beam computed tomography scans and three-dimensional images which were constructed with dedicated software. The endodontic treatment was done using accepted endodontic procedures. Clinical and radiographic evidence of healing was seen after a 14-month follow-up. Conclusions: The implications of complex and unpredictable root anatomy are discussed in this report. The clinician should consider the possibility of encountering a mandibular second molar with a radix entomolaris. Cone-beam computed tomography is a useful tool in the diagnosis and improvement of root canal therapy.
Introduction The success of root canal treatment requires in-depth knowledge of the anatomy and of the internal and external morphology of the treated teeth. The clinician should anticipate and identify the normality as well as the anatomical alterations that may be present because therapeutic failure may result from failure to identify alterations, such as supplementary roots or canals [1]. Carabelli [2] described a supernumerary root that was located on the distolingual area of mandibular molars and called it “radix entomolaris” (RE), referring to it as “radix paramolaris” (RP) when located in the mesiobuccal (MB) area. The prevalence of this root is directly * Correspondence: [email protected] 1 Department of Operative Dentistry and Endodontics, School of Dentistry, University of Santiago de Compostela, C/ Entrerríos s/n Santiago Compostela, A Coruña 15782, Spain Full list of author information is available at the end of the article
associated with ethnic groups and geographical areas. The RE is mainly observed in mandibular first molars with an incidence between 5.8 and 33.1% in Asian populations and populations with Mongoloid features (Inuit and American Indians) [3–5], in Indian populations between 2.19 and 13.3% [6, 7], in Arab populations between 2.3 and 6.0% [8, 9], in Euro-Asians between 1.0 and 4.2% [3, 10], in African popula
Data Loading...
