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    Apical microleakage of different luting agents in endodontically treated teeth restored with para-post system
    (2006) Polat, Zelal; Başkan, S.; Tacir, İbrahim
    Endodontically treated teeth are known to present a higher risk of biomechanical failure than vital teeth. Complete obturation of the root canal system to the cementodentinal junction is assumed to be an important goal in endodontic treatment. The microleakage is determined today by many in vivo and in vitro techniques such as; staining, measurement by scanning electron microscope, bacterial activity, decay, air pressure, chemical agents, markers, neutron activation analysis, radioisotope, ionisation, autoradiography, and reversible radioactive adsorption and thermal cyclus application. The purpose of this study was to compare the apical leakage with using the biomolecular characteristics of the methylene blue technique in root canals obturated with a stainless-steel post system (ParaPost System) cemented with zinc-policarboxilate cement, glass-ionomer cement and resin cement. Fifty mandibular first premolar teeth with straight root canals, anatomically similar root segments (root lengths 17 mm.), and fully developed apices, extracted for periodontal reasons, were selected and divided into 5 groups of 10 each. Analysis of variance (ANOVA) was used to determine whether significiant differences existed between the means of the different groups. Multiple comparisons and rankings were done using Duncan's multiple range test. The negative controls and positive controls all leaked significantly more than all of the experimental groups. Glass ionomer cement had significantly less microleakage than zinc-policarboxilate cement. Composite resin (self-cured) cement had significant more microleakage than all of the cements at (p<0.001).
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    The importance of gastroesophageal reflux disease in dentistry
    (2006) Başkan, S.; Dündar, B.; Altun, Ş.; Ülkü, Refik; Kaya, Sadullah
    Approximately one third of the population in industrialized countries has occasional or continuous upper gastrointestinal disorders. One such condition is gastroesophageal reflux disease (GERD), which may be evidenced by dental erosion. Dentists are often the first health care professionals to diagnose dental erosion in patients with gastroesophageal reflux disease (GERD). Gastroesophageal reflux (GER) is the passage of gastric contents into the esophagus, and GERD is defined as symptoms or complications of GER. Symptoms such as belching, unexplained sour taste and heartburn usually alert the patient to the condition. It is known that the acid regurgitated from the stomach into the mouth will erode teeth. Dental erosion is an irreversible process characterized by mineral loss unrelated to microbial involvement. Treatment of dental erosion resulting from GERD involves a multidisciplinary approach among family physician, dentist, prosthodontist, orthodontist and gastroenterologist. When possible, dental erosion should be treated with minimal intervention, and such treatment should include control of microflora, remineralization, adhesive restorations and use of biomimetic materials. © 2006 Taylor and Francis Group, LLC.
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    Temporomandibular joint, disorders and approaches
    (2006) Başkan, S.; Zengingül, Ali İhsan
    The study of temporomandibular joint (TMJ) and its relationship to function of the stomathognathic system has been a topic of interest in dentistry for many years. This relationship has proved to be quite complex. The TMJ is certainly one of the most complex joints in the body. As knowledge of the anatomy and physiology of the TMJ increases, and instruments and techniques for measuring dynamic skull-fossamandibular factors are developed, many more general dentists are attempting to—and are expected to- diagnose and treat TMJ-oriented problems. Temporomandibular disorders (TMD) include clinical disorders involving the masticatory muscles, the TMJ and the adjacent structures. TMD was recognized as a main source for pains in the orofacial area, which are not caused from dental origin, and is defined by the American Academy of Orofascial Pain (AAOP) as a sub-group within the frame of musculoskeletal disorders. The main etiology for TMD has not been found yet.