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Subband and shallow donor binding energies are calculated. The emphasis is given on the electric field effects for wires of different shapes. It is shown that the donor binding energy is sensitive to the interplay of the electric field and geometrical effects.

The surface treatments applied to porcelain materials can be different overglaze methods, chemical interactions and polishing techniques. The aims of these methods are the most durable restoration and the smoothest surface. The smoothness attained with these processes is important due to the following reasons: reduction of the bacteria remaining in the pores of a surface, improvement of gingival health and esthetic view, and prevention of an abrasion of the opposite canal. The aim of this study is to assess different surface-finishing operations that are applied to widely used porcelains in prosthetic dentistry using SEM (a scanning electron microscope). In the experiments seven different surface finishing operations (sandpaper, rubber, Sof-Lex, HP paste, autoglaze, overglaze and ion exchange) were applied to four different commercial porcelains (IPS d. SIGN, Antagon, Ceramco 3, Vitadur Alpha). The effects of various surface-finishing operationson porcelain are micro-morphologically evaluated (a SEM analysis). The results showed that the smoothest surfaces were obtained with the overglaze and autoglaze, followed by HP paste, rubber, Sof-Lex and sandpaper. In addition, the smoothness values of HP paste proved that it can be safely used in clinical surface-finishing operations. Pri obdelavi površine porcelanskih materialov lahko uporabljamo različne metode: glaziranje v peči, kemijske interakcije in tehnike poliranja. Namen teh metod je največja zdržljivost, kot tudi najbolj gladka površina. Gladkost, dobljena pri teh postopkih, je pomembna zaradi naslednjih razlogov: zmanjšanje števila bakterij, ki ostajajo v porah na površini, izboljšanje zdravja obzobnega tkiva, boljši estetski videz, preprečevanje obrabe. Namen te študije je oceniti površine pri različnih postopkih obdelave porcelana, ki se uporablja v protetičnem zobozdravstvu, z metodo SEM (vrstična elektronska mikroskopija). Pri eksperimentih je bilo uporabljeno sedem različnih operacij obdelave površine (brusni papir, guma, Sof-Lex, HP-pasta, samoglaziranje, preglaziranje in izmenjava ionov) pri štirih različnih komercialnih porcelanih (IPS d. SIGN, Antagon, Ceramco 3, Vitadur Alpha). Učinek različnih operacij obdelave površine na porcelanih je bil mikro-morfološko ocenjen s SEM-analizo. Rezultati so pokazali, da je bila najbolj gladka površina dosežena s prepoliranjem in z avtoglaziranjem, nato s HP-pasto, gumo, softlexom in brusnim papirjem. Dodatno je gladkost pri uporabi HP-paste pokazala njeno varno uporabo pri klinični obdelavi površine.

The surface treatments applied to porcelain materials can be different overglaze methods, chemical interactions and polishing techniques. The aims of these methods are the most durable restoration and the smoothest surface. The smoothness attained with these processes is important due to the following reasons: reduction of the bacteria remaining in the pores of a surface, improvement of gingival health and esthetic view, and prevention of an abrasion of the opposite canal. The aim of this study is to assess different surface-finishing operations that are applied to widely used porcelains in prosthetic dentistry using SEM (a scanning electron microscope). In the experiments seven different surface finishing operations (sandpaper, rubber, Sof-Lex, HP paste, autoglaze, overglaze and ion exchange) were applied to four different commercial porcelains (IPS d. SIGN, Antagon, Ceramco 3, Vitadur Alpha).The effects of various surface-finishing operations on porcelain are micromorphologically evaluated (a SEM analysis). The results showed that the smoothest surfaces were obtained with the overglaze and autoglaze, followed by HP paste, rubber, Sof-Lex and sandpaper. In addition, the smoothness values of HP paste proved that it can be safely used in clinical surface-finishing operations.

In this study performed during 1997-1998, surveys were done to Erzincan, Erzurum, Gümüşhane, Kars, Ağrı and Iğdır to determine fungal pathogens causing severe diseases on apple, pear, cherry, peach, and walnut trees. The results showed that the fungal pathogens causing to dry, root rot (Armillaria mellea), branch canker (Leucostomacincta) [Cytospora cincta (anamorph)], monilia (Monilinia laxa), cedar rust (Gymnosporangium fuscum), apple scab (Venturia inaequalis), antracnose (Gnomonia leptostyla), leaf curl (Taphrina deformans), and shot hole (Wilsonomyces carpophilus) [Stigmina carpophila (anamorph)], Bu çalışmayla Erzincan, Erzurum, Gümüşhane, Kars ve Iğdır illerinde 1997 ve 1998 yıllarında elma, armut, kiraz, şeftali ve ceviz ağaçlarında sorun olan fungal etmenlerin belirlenmesine çalışılmıştır. Bu etmenlerin bölgelerdeki bulunuş ve yayılış oranları tespit edilmiştir. Çalışmalar sonucu meyve ağaçlarında kurumalara neden olan kök çürüklüğü (Armillaria mellea), dal kanseri (Leucostomacincta) [Cytospora cincta (anamorph)], monilya (Monilinia laxa), memeli pas (Gymnosporangium fuscum), elma karalekesi (Venturia inaequalis) , antraknoz (Gnomonia leptostyla), yaprak kıvırcıklığı (Taphrina deformans), ve yaprak delen (Wilsonomyces carpophilus) [Stigmina carpophila (anamorph)] hastalıkları önemli bulunmuştur.

The Treatment of Isolated Nasal Fractures with Closed ReductionNose is prone to trauma because of its prominent position. Although nasal fractures are usually seen with other facial fractures, they also may be isolated. Early and late complication of nasal fractures are important both aesthetically and functionally. Isolated nasal fractures are usually treated by closed reduction.Between 1993 and 1995, 12 patients with isolated nasal fractures were treated by closed reduction. During the 6 to 24 months follow up, no complication has been seen. Burun, çıkıntılı pozisyonundan dolayı travmaya yatkındır. Burun kırıkları genellikle diğer yüz kırıkları ile birlikte görülmesine rağmen, aynı zamanda izole de olabilir. Burun kırıklarının erken ve geç komplikasyonlan estetik ve fonksiyonel yönden önemlidir. Burun kırıklan genellikle kapalı redüksiyonla tedavi edilir.1993 ile 1995 yıllan arasında izole burun kırığı olan 12 hasta kapalı redüksiyon ile tedavi edildi. 6-24 aylık takip döneminde hiçbir komplikasyon gözlenmedi.

Comparation of Effects of Pentoxfylline and Nitroderm on Skin Flap ViabilityFlap necrosis is still a significant problem in flap surgery. Nitroglycerin is a direct-acting vascular smooth muscle relaxant whereas pentoxifylline is a hemorrheologic agent. In this experimental study, we attempted to compared the effect of topical nitroglycerin and parenteral pentoxifylline on skin flap survival in rats.Necrotic flap area was calculated to be 789±216 mm square, in the control group, 580+161 mm square in pentoxfylline treated group, and 493+160 mm square in the nitroglycerin treated group. Living flap length was measured as 6.26±0.72 cm in control group, 7.0+0.57 cm in the pentoxfylline treated group, and 7.3+0.70 cm in the nitroglycerin treated group.It has been found that topical nitroglycerin and parenteral pentoxifylline is effective on skin flap survival in the rats. Flep nekrozu cerrahide hala önemli bir problemdir. Nitrogliserin direk düz adele gevşeticisidir, buna karşın pentoksifilin hemoreolojik bir ajandır.Bu çalışmada ratlardaki flep yaşayabilirliği üzerine topikal nitrogliserin ve parenteral pentoksifilinin etkileri karşılaştırılmıştır. Nekrotik flep alanı kontrol grubunda 789+216, pentoksifilinle tedavi edilen grupta 580+161, ve nitrogliserinle tedavi edilen grupta 493±160 milimetre kare bulunmuştur. Canlı flep uzunluğu kontrol grubunda 6.26±0.72 cm, pentoksifilinle tedavi edilen grupta 7.0±0.57 cm, ve nitrogliserinle tedavi edilen grup¬ta ise 7.3±0.70 cm ölçülmüştür.Topikal nitrogliserinin ve parenteral pentoksifilinin ratlarda flep yaşayabilirliği üzerine et-kili olduğu sonucuna varılmıştır.

Hydradenitis Supurativa (Case Report)Hydradenitis Supurativa is a chronic, recurrent and inflamatuar disease of apocrin glands. Etiology is unknown but genetic disposition, bacterial infections and hormonal factors are contributory factors, if medical treatment is inadequate, surgical treatment is performed.33 year old male patient with hidradenitis supurativa was presented in this paper. Patient was treated with surgical excision and skin grefting and followed two year. Recurrens was not seenHldradenitis Supurativa apokrin ter bezlerinin kronik rekürrent ve inflamatuar bir has-talığıdır. Etiyoloji bilinmemektedir fakat genetik yatkınlık, bakteriyel enfeksiyonlar ve hormonal nedenler katkıda bulunan faktörlerdir. Eğer tıbbi tedavi yetersiz olursa cerrahi tedavi yapılır.Bu yazıda hidradenitis supurativalı 33 yaşında bir erkek hasta sunuldu. Hasta cerrahi eksizyon ve deri grefti ile tedavi edildi ve 2 yıl süreyle takip edildi. Rekürrens görülmedi

Macroglossia: Case ReportMacroglossia is a relatively uncommon condition characterised by enlargement of the tongue disproportionate to the rest of the dentoalveolar structures. It may cause significant symptoms in children. Currently wedge resection, side marginal resection, tip amputation, or combinations of die three are used in partial glossectomies for macroglossia. In this paper, we presented a five year old case with a true macroglosssia due to cavernous lymphangioma. We devised the reduction surgery for his difficulty in speech and alimentation. We performed vertical elliptical excision in the front and similar horizontal excision in the back of the tongue. Histopathological examination revealed excessive presence of dilated lymphatics. Our cases speech and eating were improved satisfactory at two months postoperatively.Makroglossi; istirahat halindeki dilin büyüklüğü nedeni ile, dentoalveoler yapılar üzerinden taşması ile karakterize nadir bir durumdur. Çocuklarda önemli semptomlara sebep olabilirler. Günümüzde makroglossinin cerrahi tedavisi için kama tarzı eksizyon, serbest kenar eksizyonlan, tip amputasyonu veya bu üç yöntemin kombinasyonu kullanılır. Bu makalede kavernöz lenfanjioma bağlı gerçek makroglossi olan bir olgu sunduk. Hastanın konuşma ve beslenme güçlüğü nedeni ile küçültme cerrahisi önerdik. Dilin ön kısmından vertikal eliptik eksizyon ve arka kısmından horizontal eliptik eksizyonlar yaptık. Histopatolojik olarak sayıca artmış dilate lenfatikler olarak değerlendirildi. Olgumuzun ameliyat sonrası ikinci ayda konuşması ve yemek yemesi tatminkar olarak düzeldi.

Skin Necrosis Induced by Meningococcemic Septicemia: Case ReportMeningococcemic septicemia is a severe life threatening illness. It is associated with systemic thromboembolic complications, as well as with extensive tissue necrosis throughout the body and the development of peripheral gangrene.Our case was a six years old girl, had extensive skin necrosis on whole body due to meningococcemic septicemia. She was treated appropriate debridement and dressings. Large areas of tissue necrosis were grafted after debridement. Conservative management sufficed in remaining minor areas of tissue necrosis. Wound healing was normal at two months post-operatively.In this paper, we presented a case with extensive skin necrosis induced by meningococcemic septicemia and discussed surgical treatment modalities of meningococcemic septicemia.Meningokoksemik septisemi, hayatı tehdit eden ciddi bir hastalıktır. Bu hastalık, vücudun her yerinde oluşabilen geniş cilt nekrozları ve periferik kangren gelişimi gibi, sistemik trom-bo-embolik komplikasyonlarla beraberdir.Altı yaşında kız çocuğu olan olgumuzun meningokoksemik septisemiye bağlı tüm vücudunda yaygın cilt nekrozları mevcuttu. Debritman ve pansumanlar ile olgu takip edildi. Doku nekrozunun fazla olduğu bölgelerde debritmam takiben cilt grefti ile defektler kapatıldı. Doku nekrozunun az olduğu bölgelerde konservatif yaklaşım yeterli oldu. Ameliyat sonrası ikinci ayda yara iyileşmesi normal sınırlar içerisinde idi.Bu yazıda meningokoksal septisemi sonrası yaygın cilt nekrozları olan bir olguyu sunarak, meningokoksal septiseminin cerrahi tedavi yöntemlerini gözden geçirdik.

The aim of this paper is to present an unusual suicide attempt with intramuscular thinner injection.A single case report.Second suicide attempt of a 19 years old female with thinner injection is presented. The first attempt was by ingestion of pills.We believe that the patients who attempted suicide should be followed up closely for recurrent suicide ideation. Teaching skills on coping with stress and providing appropriate psychiatric treatment must be the goal in preventing possible repeating suicide attempts.Olağan Dışı Bir İntihar Girişimi: İntramüsküler Tiner Enjeksiyonu Olağan dışı bir yöntem olan intramüsküler tiner enjeksiyonu ile gerçekleştirilen bir intihar girişimi olgusunun sunulması. Tek olguluk bir sunum. 19 yaşında bayan hasta ikinci kez gerçekleştirdiği intihar girişiminde intramüsküler tiner enjeksiyonunu özellikle ölümcül olabileceği için tercih etmiştir. İlk girişiminde ise ağız yolu ile ilaç atanını kullanmıştır. İntihar girişimde bulunan hastaların tekrarlayan intihar düşüncesi yönünden takibinin önemli olduğu kanısındayız. Aynca bu hastalara başa çıkma becerilerinin kazandırılması ve uygun psikiyatrik tedavinin verilmesi muhtemel olan ölümcül intihar girişimi riskini azaltacaktır.

Treatment of inguinal post-burn contractures is a difficult problem. Multiple operations have been described for treatment of inguinal contractures. Seven flap-plasty and medial thigh fasciocutaneous flaps are among these techniques. In this paper, we report two patients with inguinal contractures, which have treated by seven flap-plasty and medial thigh fasciocutaneous flaps. The cases followed up one year. The results were satisfactory.

PubMed: 12560727 [No abstract available]

The aim of this paper is to present an unusual suicide attempt with intramuscular thinner injection. A single case report. Second suicide attempt of a 19 years old female with thinner injection is presented. The first attempt was by ingestion of pills. We believe that the patients who attempted suicide should be followed up closely for recurrent suicide ideation. Teaching skills on coping with stress and providing appropriate psychiatric treatment must be the goal in preventing possible repeating suicide attempts.

Meningococcemic septicemia is a severe life threatening illness. It is associated with systemic thromboembolic complications, as well as with extensive tissue necrosis throughout the body and the development of peripheral gangrene. Our case was a six years old girl, had extensive skin necrosis on whole body due to meningococcemic septicemia. She was treated appropriate debridement and dressings. Large areas of tissue necrosis were grafted after debridement. Conservative management sufficed in remaining minor areas of tissue necrosis. Wound healing was normal at two months post-operatively. In this paper, we presented a case with extensive skin necrosis induced by meningococcemic septicemia and discussed surgical treatment modalities of meningococcemic septicemia.

Macroglossia is a relatively uncommon condition characterised by enlargement of the tongue disproportionate to the rest of the dentoalveolar structures. It may cause significant symptoms in children. Currently wedge resection, side marginal resection, tip amputation, or combinations of the three are used in partial glossectomies for macroglossia. In this paper, we presented a five year old case with a true macroglosssia due to cavernous lymphangioma. We devised the reduction surgery for his difficulty in speech and alimentation. We performed vertical elliptical excision in the front and similar horizontal excision in the back of the tongue. Histopathological examination revealed excessive presence of dilated lymphatics. Our cases speech and eating were improved satisfactory at two months postoperatively.

PubMed: 11743450 [No abstract available]

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