Vol. 6 No. 1 (2016): Volume 6, No 1, 2016

Aim: The Irrigant flow dynamics has strong influence on the root canal cleaning effectiveness. The aim of this study was to evaluate the effect of needle tilting angle on irrigant flow inside a prepared root canal during final irrigation with a side-vented needle using a validated Computational Fluid Dynamics (CFD) model. Methodology: To analyze the irrigant flow a CFD model with tilting angles of 0 and 2 degrees was created. The irrigant flow in the apical root canal was simulated. Computations were carried out for two selected flow rates of 0.26 and 0.78 mL/s to evaluate the velocity and turbulence quantities along the solution domain. Results: In addition to velocity and pressure distribution at the apex, wall shear stress distribution, vorticity and turbulent intensity results were obtained for needle tilting angle of 0 and 2 degrees. In the case of turbulent flows where the flow rate was higher, irrigation is better; however, higher apical pressures were observed for both tilting angles. Although the effect of tilting angle of two degrees for laminar flow was slightly better than zero degrees, the effect of tilting was significant for the turbulent flow case. Wall shear stress distribution, vorticity and turbulent intensity results were consistent with each other. Conclusions: A small tilting angle of 2 degrees had an effect on irrigation effectiveness which could be clearly observed from the wall shear stress, vorticity and velocity distribution results. The velocity distribution results obtained at the symmetry plane should be evaluated with the wall shear stress values together to observe the complete fluid dynamics structure inside the root canal.  How to cite this article: Adiguzel O, Gokcen MG, Olcay AB. Evaluation of the Effect of Needle Tilting Angle on Irrigant Flow in the Root Canal Using Side-Vented Needle by an Unsteady Computational Fluid Dynamics Model. Int Dent Res 2016;6:1-8.  Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Aim: Hereditary sensory and autonomic neuropathy (HSAN) is a rare syndrome of unknown etiology that develops in early childhood. Five different types of HSAN have been described. This syndrome is characterized by the absence of pain and self-mutilation. Patients start to traumatize themselves at as young as 2–3 years of age. Subsequently, ulcers and stress fractures develop on their fingers and toes. Oral findings in HSAN patients include oral lesions after repetitive trauma, oral mucosa and tongue scars, self-dental extractions, dental infections, and premature tooth loss. Methodology: This case report presents the oral findings of a 4-year-old HSAN patient with premature tooth loss who visited Dicle University, Faculty of Dentistry, Department of Periodontology. The extraoral examination showed wounds around the nose and bruises and burns on the forearms and legs. The intraoral inspection showed traumatic lesions on the tongue, early loss of all of the lower jaw primary dentition, but the presence of upper jaw teeth. Results: During follow-up, the eruption of the permanent right lower incisors and presence of mobility were observed. A partial child prosthesis for the lower jaw and protective plaque restoration constructions were planned. The patient is being followed regularly. Conclusions: It is necessary to conduct regular checkups and to ensure good communication between the dentist and family in terms of ensuring oral hygiene and preventing the development of undesired complications.  How to cite this article:  Saribas E, Acun Kaya F, Dogru AM, Aluclu MU.  Hereditary Sensory Neuropathy: A Case Report. Int Dent Res 2016;6:9-12. Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Aim: Odontogenic keratocysts are aggressive lesions characterised   by a high recurrence risk ratio due to dental lamina residues in mandibular and maxillary regions. Odontogenic keratocysts appear distinct from other jaw cysts. Methodology: In this report, a 35-year-old male patient was admitted to our clinic with numbness in the left mandible; the patient had also been admitted approximately 1 year previously complaining of paraesthesia, which subsequently progressed to complete numbness. During intraoral examination luxation was detected in the mandibular left second molar tooth. No carries or periodontal abnormalities were observed. In panoramic images a radiolucent lesion was detected, with regular boundaries, in the area of interest. Results: The mass was enucleated under local anaesthesia and second molar teeth were extracted. During histopathological examination the mass was determined as a keratocyst. Conclusions: In the present case, surgical treatment was performed.  How to cite this article:  Koparal M, Adiguzel O.  Treatment of Odontogenic Keratocyst: A Case Report. Int Dent Res 2016;6:13-15. Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

Aim: This report discusses root and endodontic treatment as well as dental endodontic treatment of remaining roots using hemisection.    An array of prosthetic approaches is described. Close Panel Methodology: These two case reports describe multidisciplinary prosthetic restoration of teeth using a hemisection procedure. Results: It was possible to obtain successful results in problematic cases where the root failed to respond to endodontic treatment using a multidisciplinary approach combining endodontic treatment with restorative or prosthetic restorations of the intact root. Conclusions: Hemisection is a suitable alternative approach to extraction for the effective and conservative treatment of affected teeth using periodontal and endodontic treatment.  How to cite this article:  Falakaloglu S, Adiguzel O, Oztekin F, Deger Y, Ozdemir G. Hemisection: Two case reports Int Dent Res 2016;6:16-20. Linguistic Revision:  The English in this manuscript has been checked by at least two professional editors, both native speakers of English.