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Öğe Accidental displacement of impacted maxillary and mandibular third molars(QUINTESSENCE PUBL CO INC, 2004) Durmus, E; Dolanmaz, D; Kucukkolbsi, H; Mutlu, NDisplacement of impacted third molars is frequently mentioned in oral and maxillofacial surgery textbooks, but rarely reported. However, should this complication arise in general practice, the clinician should not embark on potentially complicated and hazardous surgical procedures to retrieve the displaced tooth. Administration of prophylactic broad spectrum antibiotics and urgent referral to an oral and maxillofacial surgeon, is recommended.Öğe Comparison of stability of absorbable and titanium plate and screw fixation for sagittal split ramus osteotomy(CHURCHILL LIVINGSTONE, 2004) Dolanmaz, D; Uckan, S; Isik, K; Saglam, HSix unembalmed adult sheep mandibles were stripped of all soft tissues and sectioned at the midline. Each side had a sagittal split ramus osteotomy (SSRO) and was advanced 5 mm. Six of the hemimandibles were fixed with four-hole extended titanium miniplates and titanium screws, and the other six were fixed with four-hole extended absorbable plates and absorbable screws. At[ specimens were mounted in a servohydraulic testing unit, and a range of forces (0-140 N) was applied. Displacement of each proximal segment was recorded at 1 ON increments from 0 to 140 N. Values for the two groups were compared using the Mann-Whitney U-test, and significant differences in displacement were seen only at loads between 10 and 50 N. The results indicate that when absorbable miniptates are used intermaxillary fixation may be necessary to stabilise the bony fragments in the early postoperative period. (C) 2003 The British Association of Oral. and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.Öğe Intraosseous screw-supported upper molar distalization(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2004) Gelgor, IE; Buyukyilmaz, T; Karaman, AIY; Dolanmaz, D; Kalayci, AThe aims of the present study were to investigate (1) the efficiency of intraosseous screws for anchorage in maxillary molar distalization and (2) the sagittal and vertical skeletal, dental, and soft tissue changes after maxillary molar distalization using intraosseous screw-supported anchorage. Twenty-five subjects (18 girls and seven boys; 11.3 to 16.5 years of age) with skeletal Class 1, dental Class 11 malocclusion participated in the study. An anchorage unit was prepared for molar distalization by placing an intraosseous screw behind the incisive canal at a safe distance from the midpalatal suture following the palatal anatomy. The screws were placed and immediately loaded to distalize upper first molars or the second molars when they were present. The average distalization time to achieve an overcorrected Class I molar relationship was 4.6 months. The skeletal and dental changes were measured on cephalograms and dental casts obtained before and after the distalization. In the cephalograms, the upper first molars were tipped 8.8degrees and moved 3.9 mm distally on average. On the dental casts, the mean distalization was five mm. The upper molars were rotated distopalatally. Mild protrusion (mean 0.5 mm) of the upper central incisors was also recorded. However, there was no change in overjet, overbite, or mandibular plane angle measurements. In conclusion, immediately loaded intraosseous screw-supported anchorage unit was successful in achieving sufficient molar distalization without major anchorage loss.Öğe Persistent painful swelling in the posterior mandible(W B SAUNDERS CO-ELSEVIER INC, 2004) Oz, G; Dolanmaz, D; Uckan, S; Gunhan, M; Armstrong, AW[Abstract not Available]Öğe Superoxide dismutase and glutathione peroxidase enzyme activities in larynx carcinoma(TAYLOR & FRANCIS AS, 2005) Kalayci, A; Ozturk, A; Ozturk, K; Karagozoglu, E; Dolanmaz, DConclusions. It can be concluded that these changes are related to damage at the DNA level or to the inhibitory effects of tumor promoters. Increases in GSH-Px activities may be related to the independence of this enzyme from the suppressive effects of tumor promoters. This study and others in the literature show that it is not possible to generalize the activities of SOD and GSH-Px in cancer. Objective. There has been growing interest in the role of free radicals as a cause of cancer. It has been suggested that an increase in activated forms of oxygen in cells due to overproduction and/or the inability to destroy them may lead to severe damage of cell structures. As a result of these changes, some chromosomal aberrations and carcinogenesis may develop. Superoxide dismutase ( SOD) and glutathione peroxidase (GSH-Px) are two important antioxidant enzymes involved in enzymatic antioxidant defense mechanisms. To our knowledge there have been no previous studies in the literature investigating the activities of SOD and GSH-Px in laryngeal cancer. Material and methods. The study subjects comprised 10 male patients (age range 43-76 years) with laryngeal carcinoma and 10 healthy controls ( 4 males, 6 females; age range 40-69 years) with intraoral hyperplastic fibrous tissue. Homogenate SOD and GSH-Px activities were measured using commercially available kits. Results. GSH-Px levels were significantly increased in the cancerous tissues compared with cancer-free adjacent tissues and fibrous hyperplasia tissues (p < 0.05), whereas there was no significant difference between SOD activities (p > 0.05). There was also no significant difference between GSH-Px activity in cancer-free adjacent tissues and fibrous hyperplasia tissues (p > 0.05).Öğe Use of pedicled buccal fat pad in the closure of oroantral communication: Analysis of 75 cases(QUINTESSENCE PUBL CO INC, 2004) Dolanmaz, D; Tuz, H; Bayraktar, S; Metin, M; Erdem, E; Baykul, TObjective: This report evaluates the use of pedicled buccal fat pad for closure of oroantral communications. Method and materials: Seventy-five patients were treated with pedicled buccal fat pad. Fifty-two were treated immediately after tooth extractions. The remaining 23 had chronic oroantral communication and were treated similarly after irrigation of the maxillary sinus with saline for 7 days. Results: The 6-month follow-up revealed uneventful healing in all of the patients. Though partial necrosis of the flap was observed in three patients, this did not effect the final healing. Total necrosis of the flap was not noted. Conclusion: The use of pedicled buccal fat pad is an acceptable and reliable alternative in acute or chronic oroantral communications management and may even be used as a first treatment choice by experienced surgeons.
