introduction: the aim of the present study was to compare hand stainless steel k-files and nickel-titanium profile 0.04 taper 29 series rotary instruments for their efficiency, procedural errors and time consumed in preparation of root canal system. materials and methods: a total of 46 maxillary and mandibular first premolars extracted for orthodontic purposes were collected (two contralateral ...

statement of problem: condylar hyperplasia of the mandible is a self limiting abnormality which can cause facial asymmetry, temporomandibular joint (tmj) dysfunction and esthetic problems. treatment planning is based on the results of isotope scanning, clinical findings and patient age. single photon emission tomography (spect) is considered to be a sensitive method in the calculation of condyl...

statement of the problem this study was designed to investigate the complications after surgical removal of mandibular third molars. patients and methods six hundreds and ninety eight lower third molars among 450 patients surgically extracted by general dentists from april 2005 to april 2006 were selected for this study. data were recorded by completing questionnaires regarding post surgical co...

condylar dislocation is not an uncommon condition and occurs when the condyles are displaced anterior to the articular eminence and are unable to reduce back into the glenoid fossa. long-standing dislocations are difficult to treat with the conservative methods and usually need surgical intervention. in this paper, a long-standing dislocation treated by bilateral extra-oral ramus osteotomy is d...

Introduction. Milled precision bar with the lateral additions of two attachments could significantly contribute to primary and secondary retention partial denture overdenture. This clinical case demonstrates stability mandibular overdenture using milled coronally positioned attachments. Case report. A sixty-five years old male patient had preserved canine roots in lower jaw. Semicircular metal-...

Oral appliance (OA) therapy with a mandibular advancement device (OAm) is a non-invasive, alternative approach to maintaining upper airway patency. The main requirement for an OAm to be effective is the adequate retention on the teeth while the patient is asleep. We evaluated the retentive forces of a new low-cost, customizable, titratable, thermoplastic OAm (BluePro (®); BlueSom, France). Dent...

Using current methods of age determination, white-tailed deer (Odocoileus virginianus) from the same cohort are classified as 1.5-year-old deer when actual age may vary by 6 or more months. We measured mandibular tooth row length (mm) on mandible impressions of 41 (23 males and 18 females) known-age captive white-tailed deer to develop an aging model that would estimate age in days. To test the...