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Öğe Alveolar Distraction: Analysis of 10 Cases(Mosby-Elsevier, 2002) Uçkan, Sina; Gürsoy Haydar, Seda; Dolanmaz, DoğanObjective. The purpose of this study was to evaluate intraoperative and postoperative complications of alveolar distraction and outcome. Study design. Ten patients with alveolar ridge deficiencies were treated with alveolar distraction osteogenesis by means of intraosseous distractors (Lead system, Stryker Leibenger, Kalamazoo, Mich). The deficiencies were caused by atrophy after periodontal disease or atrophy after tooth extraction (n = 6), benign tumor resection (n = 2), trauma (n = 1), or oligodontia in a case of ectodermal dysplasia (n = 1). The location of the defects was the anterior mandible (7), posterior mandible (1), and anterior maxilla (2). The mean follow-up was 1.8 years, with a range of 10 months to 3 years. Results. The mean alveolar distraction achieved in 10 cases was 8.7 mm (5-15 mm). The intraoperative and postoperative problems encountered were lingual (n = 3) and palatal m = 2) displacement of the distracted segment, fracture of the distracted segment in a very thin alveolar bone (n = 1), and intraoperative bleeding (n = 1). Conclusion. Overall complication rate was 70%. However, most of the complications were minor and eliminated easily. Implant success rate was 85%.Öğe Local Anesthetic Efficacy for Oral Surgery - Comparison of Diphenhydramine and Prilocaine(MOSBY-YEAR BOOK INC, 1998) Uçkan, Sina; Güler, Nurhan; Sümer, Mahmut; Üngör, MeteObjective. Diphenhydramine has been suggested as an alternative local anesthetic agent for patients claiming allergy to local anesthetics. The present study attempted to determine the local anesthetic efficacy of diphenhydramine for oral surgery. Study design. Seventeen patients claiming allergy to local anesthetics were given diphenhydramine as anesthetic alternative and compared with seven nonallergic control patients treated with prilocaine. After determining an average value of vitality score of neighboring and contralateral teeth by electrical pulp stimulation, molar and premolar teeth were extracted and postextraction vitality scores determined. Visual analogue scale, anesthesia onset times, and the incidence of pulpal and soft tissue anesthesia were analyzed nonparametrically by means of Mann-Whitney U tests. Results. The mean onset time of pulp anesthesia with diphenhydramine (range, 4 to 7.5 minutes), excluding one failure, was not significantly different from that of prilocaine; (range, 4 to 13 minutes). The duration of anesthesia was significantly longer and the visual analogue scale lower in the group receiving prilocaine in comparison with the group receiving diphenhydramine. Conclusion. In the small group studied, diphenhydramine administration provided adequate anesthesia before oral surgery; it may be useful as an anesthetic alternative in patients with histories of allergy to local anesthetics.Öğe Mandibular Symphyseal Distraction and Its Geometrical Evaluation: Report of a Case(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2003) Orhan, Metin; Malkoc, Sıddık; Üşümez, Serdar; Uçkan, SinaIn this report, the case of a patient who has been treated with a different use of a tooth-borne custom-made mandibular symphyseal distraction device is presented. The difference in the application is that the distal arm of the device was sectioned during the retention phase to allow the possible relapse of displaced condyles to their original positions while the labial segment expansion is being maintained. The effect of this procedure was also evaluated on a geometrical model using measurements from the patient's cast. We conclude that symphyseal distraction is an effective and fast method of correcting orthodontic anomalies. The effect of the procedure on the condyle was only 3degrees of distolateral. rotation as calculated using the geometrical model.Öğe Recurrent Multifocal Langerhans Cell Eosinophilic Granuloma of the Jaws: Report of a Case(W B Saunders Co, 1996) Uçkan, Sina; Gürol, Muhtar; Durmuş, ErcanEosinophilic granuloma is a member of the group of diseases that have similar clinical and histopathologic features, named histiocytosis X by Lichtenstein in 1953.1s2 Other members of the group are HandSchuller-Christian disease (chronic disseminated histiocytosis X) and Letterer-Siwe disease (acute disseminated histiocytosis X).Öğe Squamous Cell Carcinomalı Hastalarda Normal ve Tümöral Dokudaki Zn ve Fe Seviyelerinin Karşılaştırılması(2000) Ataoğlu, Hanife; Güler, Nurhan; Öztürk, Kayhan; Uçkan, SinaEser elementlerin enzimatik reaksiyonları inhi-be veya aktive ederek bir dizi biyolojik olayda rol oynadığı çok iyi bilinmektedir. Ancak malign hastalıklar veya teşhis ve prognozdaki klinik önemleri hala tartışmalıdır ve baş-boyun tümörleri üzerindeki etkileri tam olarak bilinmemektedir. Bu çalışma, %53'ü üçüncü evrede % 40 ise ikinci evrede olan 15 Squamous cell carcinomalı (SCC) hastada planlandı. Çinko ve demir seviyesinin belirlenmesi için hem tümör hem-de sağlıklı doku örnekleri SCC hastalardan elde edildi. Bu elementlerin seviyesi atomik ab-sorpsiyon spektrofotometre kullanarak belirlendi. Tumoral dokudaki çinko ve demir seviyeleri kontrol grubundaki çinko ve demir seviyeleri ile karşılaştırıldığında, her iki elementin seviyesinin tümör dokusunda kontrol grubundan yaklaşık 2 kat kadar fazla olduğu görüldü. Tümör dokusunda ortalama çinko ve demir seviyesi 141,8866,93 ug/g ve 868,76 461,92 ug/g olarak bulundu. Sağlıklı dokuda çinko 65,0324,24ug/g ve 430,84211,37 ug/g idi. Bu fark istatistiksel olarak anlamlı bulundu (p0.05). Tümör dokusundaki çinko ve demir seviyesi ile tümör evresi arasında anlamlı bir ilişki bulundu (p0.05). Bu çalışmadan elde edilen veriler, aşın çinko ve demir elementlerin seviyesinin baş-boyun SCC'lı hastaların karsinogenezisi üzerinde etkili olabileceğini göstermektedir.
