Dens invaginations are a rare developmental defect most commonly affecting maxillary lateral incisors, with very few reported cases in mandibular teeth. We describe a rare case of bilateral first mandibular premolar dens invaginations type I, where apparently health teeth presented with periapical pathology.
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http://dx.doi.org/10.1155/2012/474013 | DOI Listing |
Restor Dent Endod
January 2025
Faculty of Dental Surgery, University of Strasbourg, Strasbourg, France.
The present case report describes the endodontic treatment of a type III B dens invaginatus (DI) in a three-rooted mandibular second molar since the invagination invades the root and extends apically. Clinical and cone-beam computed tomography examination of the mandibular second molar showed a broadened coronal morphology, DI, a third root, periapical radiolucency, and compression of a distal root canal by the invagination, which developed an atypical semilunar shape. The tooth was diagnosed with pulpal necrosis, symptomatic apical, and peri-invagination periodontitis.
View Article and Find Full Text PDFJ Endod
December 2024
Department of Preventive and Restorative Dentistry, University of Sharjah, College of Dental Medicine, Sharjah, UAE.
This report highlights successful management of a rare case of a mandibular premolar with Oehler's Type IIIb Dens Invaginatus (DI) and peri-invagination periodontitis with guided intentional replantation without root canal treatment. A 22-year-old female patient reported with discomfort and a sinus tract associated with tooth number 21. Clinical examination and cone beam computed tomography revealed tooth number 21 had an Oehler's Type IIIb DI with peri-invagination periodontitis.
View Article and Find Full Text PDFNeurospine
September 2024
Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Objective: Recent studies indicate that 3 morphological types of atlanto-occipital joint (AOJ) exist in the craniovertebral junction and are associated with type II basilar invagination (BI) and atlanto-occipital instability. However, the actual biomechanical effects remain unclear. This study aims to investigate biomechanical differences among AOJ types I, II, and III, and provide further evidence of atlanto-occipital instability in type II BI.
View Article and Find Full Text PDFCureus
August 2024
Pediatric and Preventive Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research, Wardha, IND.
J Clin Exp Dent
June 2024
BDS, MPaedDentRCS (Engl), DrDent (UCL). Paediatric Dentist, Private Paediatric Dental Clinic, Athens, Greece.
Dens Invaginatus (DI) is a developmental anomaly which eventually leads to pulp necrosis and has several clinical implications in sufficient instrumentation and obturation of the root canal system. The present clinical report presents a rare case of a maxillary canine affected with DI leading to pulp necrosis combined with a previous dental trauma, which also led to irreversible pulp damage of the adjacent lateral incisor. A 14-year-old male patient with a history of dental trauma at the right maxillary region, one year earlier, was referred with pain and swelling at the apical area of the right maxillary canine.
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