Root Canal Anatomy & Configuration

Summary:  Purpose: to review the aetiology, classification, diagnosis and management of teeth affected with dens invaginatus. •Developmental dental anomaly where there is invagination of the enamel organ into the dental papilla before completion of calcification; which creates a pocket of organic material underneath enamel surface. •Bacterial contamination and propagation in the irregularity which leads to […]

Summary:  •Purpose: To describe the clinical and radiographic features of dens invaginatus, review previous treatment and options of  management based on the classification of the problem. Clinical presentation : In deciduous teeth, invagination located on the incisal edge of the tooth while permanent incisors and other anterior teeth palatally w/a great variation (conical morphology ,and […]

Summary:   •Purpose: To review etiology, prevalence, and classification of dense invaginatus and its morphology and nomenclature. •Highlights: •Developmental anomaly that results from invagination of the enamel organ to the dental papilla prior to calcification. •Dens invaginatus was named by this term to describe the infolding of enamel into dentine to form pocket or dead space […]

Summary:  •Purpose: to present a review of the literature and a discussion of the options for managing Dilaceration. •Dilaceration: deviation or bend in the linear relationship of a crown of a tooth to its root  (according to Tomes). •Etiology: •2 possible causes of dilaceration: 1.mechanical trauma to the primary predecessor tooth, which results in dilaceration of […]

Summary:  Purpose: To report the anatomy of root apex in term of location, diameter. N= 268 extracted teeth. Inclusion criteria: no PA lesion, normal occlusion, and known age. Materials/Methods: •Teeth obtained from cadavers , G1:  18-25 Y,  G2: 55 Y and older. •Roots were cut, pulpectomy done with barbed broach. Canals stained using ink to […]

Summary:  •Purpose: To evaluate the radiographic features of RE at various horizontal angulations, to investigate possible correlation between anatomical classification and radiographic type of RE, and to determine the most effective horizontal angulation for successful RE diagnosis in mandibular first molars. •N= 25 mandibular 1st molars 12 right &13 left with radix entomolaris & intact […]

Summary:  Purpose: to present three cases of mandibular molars with a radix entomolaris (RE) or paramolaris (RP) requiring RCT. •The radix entomolaris is an additional root located lingually. the radix paramolaris is an additional root located buccally Case 1:  A 34 y Caucasian male was referred for endodontic treatment of #46. Access cavity was prepared […]

Summary •Purpose:  to review and discuss the etiology, incidence, anatomic features, classification, diagnosis and management of the C­-shaped canal configuration. •Materials &Method: Manual and electronic searches of literature were performed from 1979 to 2012¬ in Pub Med by crossing the keywords: C­shaped canals¬ mandibular second molar¬ mandibular first premolar¬ root canal morphology. •Most highlighted Results: •First Described by Cooke and Cox . •Etiology:  The failure of fusion of Hertwig’s epithelial sheath. (genetic origin) •Incidence: higher in Asian population and in mandibular 2nd molar. •Anatomic features:  –Roots: conical or square configuration – Fusion labially or […]

Summary:  Purpose: To examine the 5mm of apical anatomy of C-shaped canal systems in mand 2nd molars by micro-computerized tomography (lCT) and stereomicroscopy N= 44 permanent mand 2nd molars w/C-shaped root canal , 22 mand right and 22 left 2nd  mand molars Materials/Methods: • The apical 5 mm of the root was reconstructed. 3D-reconstructed canals […]

Summary:  Purpose: To provide further knowledge of the root canal anatomy  of mand 2nd molar to success root canal treatment N=149 mand 2nd molar Materials/Methods: •Teeth were collected and stored in water after extraction then prepared and rendered transparent using the techniques described by Manning. •Afterward, roots were examined with a stereo dissecting microscope •Data […]