Prevalence of halitosis and evaluation of etiological factors in a Turkish subpopulation

Aim: The purpose of this study was to estimate the prevalence of halitosis in an adult Turkish subpopulation and to assess the relationship between halitosis and sociodemographics, self reported halitosis, etiological factors, by employing standardized procedures for measurement of halitosis. Methods: The study included 459 subjects who referred to oral diagnosis clinic of Gazi University Faculty Of Dentistry. The questionnaire including the questions of sociodemographic data, halitosis complaints, oral hygiene practices, extrinsic causes and extra-oral causes. In the clinical examination, dentition and soft tissues were evaluated. Tongue coating status, periodontal index, gingival index and plaque index were recorded. Values for halitosis were assessed by measurement of volatile sulfur compounds (VSC) using portable sulphide monitor. Results: The questionnaire revealed that 46.6% of the subjects suffered from halitosis and females sufferred from halitosis more frequently than males. The prevalence of halitosis was 50.7% . A significant correlation was found between halitosis and tongue coating, periodontitis, gingivitis though PI did not affect halitosis. There were not significant correlations between halitosis and oral hygiene practices, extrinsic causes and extra-oral causes. Conclusion: This study showed that there was a high prevalence of halitosis in the Turkish population and the most important factors that influence halitosis were intra-oral causes

Comparative evaluation of shear bond strength of three flowable compomers on enamel of primary teeth: an in-vitro study

Background: The aim of the present study was to determine Shear bond strength (SBS) of different flowable compomers on the enamel surface of primary teeth. The null hypothesis to be tested was that none of the flowable compomer would differ significantly from the other two with respect to SBS. As a result, the tested materials that have the easiest application on child patient is preferred. Material and Methods: Sixty newly extracted non carious primary molars were selected. The buccal surface was cleaned and polished to obtain a flat enamel surface. The specimens were randomly divided into three groups of 20 teeth each, based on the flowable compomers applied, as follows: group I: Dyract Flow® (Dentsply, Konstanz, Germany); group II: Twinky Star Flow® (Voco, Cuxhaven, Germany); and group III: R&D Series Nova Compomer Flow® (Imicryl, Konya, Turkey). Results: SBS in group II (6.78± 0.45 MPa) were significantly lower than groups I and III (8.30 ± 0.29 and 8.43 ± 0.66 MPa, respectively) ( P <.001). No significant difference was found between groups I and III ( P <.05). Conclusions: Significant differences existed between the SBS of the groups. Therefore, the null hypothesis was rejected. Flowable compomers can provide adequate SBS with self-etching system at restoration of primary teeth. Thus, successful restorations in pediatric patients can be done in a practical way

Primer ve nüks pterjium cerrahisinde intraoperatif mitomisin C ile fibrin yapıştırıcılı konjonktival otogreft tekniklerinin karşılaştırılması

Amaç: Pterjium cerrahisinde çıplak sklera yöntemi ve intraoperatif mitomisin C (MMC) uygulamasının sonuçlarının fibrin yapıştırıcı ile konjonktival otogreft uygulanan hastalarla karşılaştırılması. Gereç ve Yöntem: Ocak 2009 ve Aralık 2014 tarihleri arasında kliniğimizde opere edilen primer ve sekonder pterjiumlu 234 hasta çalışma kapsamında retrospektif olarak değerlendirildi. Hastalar, intraoperatif MMC ile kombine çıplak sklera metoduyla opere edilen 145 hasta Grup 1, fibrin yapıştırıcılı konjonktival otogreft uygulanan 89 hasta Grup 2 olmak üzere iki gruba ayrıldı. Bulgular: Ortalama takip süresi Grup 1’de 48,95 ±70,79 hafta, Grup 2’de 32,98±39,55 hafta idi. Takip süresi açısından gruplar arasında istatistiksel olarak anlamlı fark vardı (p=0,028). Grup 1’deki bütün hastalar primer pterjium, Grup 2’deki 7 hasta sekonder pterjium tanılı idi. Grup 1’deki hastaların yaş ortalaması 61,68±12,5 yıl, Grup 2’de 51,59±11,73 yıl olarak bulundu. Grup 1’deki 145 hastanın 5’inde (%3,4), Grup 2’deki 89 hastanın 5’inde (%5,6) rekürans saptandı. İki grup arası fark istatistiksel olarak anlamlı değildi (p=0,426). Sonuç: Pterjium eksizyonu sonrasında intraoperatif uygulanan MMC özellikle ileri yaştaki, primer pterjiumlu hastalarda etkin bir yöntemdir ve düşük komplikasyon oranına sahiptir. Fibrin yapıştırıcı ile kombine konjonktival otogreft tekniği güvenilir, hasta konforunu arttıran bir yöntem olmakla birlikte nüks pterjiumlu ve genç yaştaki hastalarda nüksü önlemekte yetersiz kalabili

Evaluation the oral hygiene conditions, oral Candida colonization and salivary Streptococcus mutans and Lactobacilli density in a group of ?-thalassemic children and adolescence

In this study, the prevalence and distribution of dental caries and oral hygiene conditions in a group of patients with ?-TM are evaluated and the results compared to age-and gender-matched healthy patients. In addition, oral candida colonization and the density of Streptococcus mutans (S.mutans) and Lactobacilli in the total saliva are assessed. This study involved 59 ?-TM patients between 6-16 years old (mean:11.59±3.22), who applied to the Department of Pedodontics, Faculty of Dentistry, Akdeniz University, with ongoing follow-up, treatment and regular blood transfusions. All enrolled patients were diagnosed with ?-TM by the Department of Pediatric Hematology and Oncology, Faculty of Medicine, Akdeniz University. As a control group, age-and gender-matched healthy 50 patients were included to the study. Plaque (p=0.001), DMFT (p=0.009) and DMFS (p=0.039) indices were significantly higher in the ?-TM patients, whereas, the oral hygiene status was significantly lower (p=0.004). Saliva buffering capacity average was insignificantly but slightly more in ?-TM patients(p=0.131). While S.mutans values were significantly higher in the ?-TM patients (p=0.002), no significant difference was found in the Lactobacillus (p=0.131) and Candida values (p=0.33). DMFT, DMFS, Plaque and oral hygiene indices and S.mutans values were found significantly different in ?-TM patients than healthy, control group patients, in this study

Avrupa entegrasyon sürecinde baltık ülkelerinde etnik Ruslar ve azınlık hakları.

This thesis examines the impact of the Baltic states of Estonia, Latvia and Lithuania’s European accession process on the Russian oriented citizenship policies and laws of these states from a comparative perspective. The thesis also explores the impact of communist heritage and the construction of the post-communist state order within the context of minority rights; in addition to the consistency of the citizenship laws in the Baltic states with the European Union norms, which require the respect for and protection of minorities. The main argument of this thesis is that notwithstanding the fact that the European accession process has promoted minority rights in the three Baltic states significantly, the ethnic Russians in the Baltic states have been partially accommodated during the Baltic states’ accession into the EU. The ethnic Russians have not been entirely accommodated due to Baltic states’ fear from potential influence of the Russian Federation over the ethnic Russians in these Baltic states.M.S. - Master of Scienc

Purification of catalase from celery (apium graveolens).

TEZ11401Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 2015.Kaynakça (s. 43-47) var.viii, 49 s. : res. (bzs. rnk.), tablo ; 29 cm.Bu çalışmada katalaz enzimi ilk kez kerevizden saflaştırılmış ve karakterizasyonu yapılmıştır. Saflaştırılan katalaz enziminin molekül ağırlığının 237 kDa olduğu ve 58 kDa ağırlığında 4 eşit alt birimden oluştuğu belirlenmiştir. Kereviz (Apium graveolens) katalazının optimum sıcaklığının 30 °C ve optimum pH’ının 7,5 olduğu bulunmuştur. Katalaz enziminin depolama kararlılığı için belirli derişimlerde gliserol çözeltisi hazırlanmış ve enzim bu çözeltilerde bekletilmiştir. En yüksek kararlılığın % 20 gliserol çözeltisi içinde olduğu belirlenmiştir. Katalazın termal kararlılığının da 25 °C’ de daha iyi olduğu bulunmuştur (% 28). Km ve Vmax değerleri Hidrojen peroksit substratı için sırasıyla 27,5 mM ve 87 U/mg protein olarak bulunmuştur.In this study, catalase enzyme was purified from celery leaves and characterizated. The molecular weight of the purified enzyme was estimated as 236 kDa and the enzyme was consist of four identical subnits with the molecular weight of 59 kDa each. The optimal temperature and pH were found 30°C and 7,5, respectively. Different glycerol solutions were prepared for storage stability of this enzyme and it was incubated in this solutions. The highest storage stability of this enzyme was determined in 20 % glycerol solution. Catalase enzyme showed beter thermal stability (28 %) at 25°C than 40°C. Km and Vmax values were 27,5 mM and 87 U/mg protein respectively towards hydrogen peroxide.Bu çalışma Ç.Ü. Bilimsel Araştırma Projeleri Birimi tarafından desteklenmiştir. Proje No: FYL-2014-3262

Audiovestibular signs of connective tissue diseases

YÖK Tez ID: 351320Bu çalışmanın amacı bağ dokusu hastalıklarından RA (Romatoid artrit) ve PEX (psödoeksfoliyasyon sendromu) hastalarında odyovestibüler sistemin ne kadar etkilendiğini araştırmak ve bu hastalıkların birbirleriyle yapısal temelde benzerliklerinin olup olmadığını ortaya koymaktır.Çalışmamızda 30 RA hastası 23 PEX hastası ve KBB'a kulak şikayetleri dışındaki nedenlerle başvuran 30 olgu kontrol olarak çalışmaya alınmıştır. Hastalara saf ses odyometri, timpanometri, akustik refleks, otoakustik emisyon (OAE) ve vestibüler uyarılmış miyojenik potansiyel (VEMP) testleri uygulanmıştır.Çalışmamızda RA grubunda; saf ses odyometrisinde hava yolu 500, 1000, 4000 Hz frekanslarında, kemik yolu 500, 4000 Hz frekanslarında; PEX grubunda ise hava ve kemik yolunda tüm frekanslarda kontrol grubuna göre daha fazla işitme azlığı saptanmıştır. PEX grubunda işitme azlığının RA grubuna göre tüm frekanslarda artmış olduğu görülmüştür. Timpanometride basınç ve gradient değerlerinin her iki hastalık grubunda da artmış olduğu saptanmıştır. PEX grubunda ipsilateral kulakta tüm frekanslarda, kontralateral kulakta ise 500, 1000, 4000 Hz frekanslarında kontrol grubuna göre akustik refleks daha az alınmıştır. VEMP testinde RA hastalarında N1 latansının ve P1N1 amplitüdünün kontrol grubuna göre daha uzun olduğu görülmüştür. RA ve kontrol grubu OAE değerleri karşılaştırıldığında 1000, 2000 Hz frekanslarında TEOAE amplitüd değerlerinin ve 1000 Hz frekansta DPOAE değerlerinin RA grubunda daha düşük olduğu görülmüştür. PEX grubunda TEOAE amplitüd değerlerinin 1000, 1500, 2000, 3000 Hz frekanslarında kontrol grubuna göre daha düşük olduğu görülmüştür. Kontrol grubu ile karşılaştırıldığında, 1500, 2000, 3000, 4000 Hz frekanslarında DPOAE amplitüd değerlerinin PEX hastalarında daha düşük olduğu saptanmıştır.PEX ve RA'in etyopatogenezleri ve sistemik etkileri göz önüne alındığında odyovestibüler sisteminde bu şekilde etkilenmiş olabileceği kanaatine varılmıştırThe purpose of this study is to show audiovestibular signs in patients affected by the connective tissue diseases which include RA (rheumatoid arthritis) and PEX (pseudoexfoliation syndrome) and to find out the similarities of structural basis with each other.In our study, the study group included 30 RA patients and 23 patients with PEX. 30 patients included as control group which had no ear disorder. All patients had audiovestibular evaluations that include pure tone audiometry, tympanometry, acoustic reflexes, otoacoustic emissions (OAE) and vestibular evoked myogenic potential (VEMP). In RA group pure tone audiometry; air conduction at 500, 1000, 4000 Hz frequencies, bone conduction at 500, 4000 Hz frequencies were having more hearing loss. than the control group. PEX group at all frequencies were having more hearing loss than the control group. In PEX group hearing loss was more than RA group at all frequencies. Tympanometry testing results showed that pressure and the gradient were increased in both disease groups compared with control group. In acoustic reflex test; all frequencies in PEX group?s ipsilateral ear and 500, 1000, 4000 Hz frequencies in RA group?s contralateral ear, the amplitude values were less than the control group. In RA patients VEMP testing; N1 latency and P1N1 amplitude was longer than the control group. When the RA group compared with control group in OAE testing, amplitüde values of TEOAE testing was decreased in RA group at 1000, 2000 Hz frequencies, and at 1000 Hz frequency, the amplitüde value was decreased in DPOAE testing. In PEX group the amplitüde values of TEOAE testing were decreased at 1000, 1500, 2000, 3000 Hz frequencies and at DPOAE testing in PEX group that compared to control group, the amplitüde values were decreased at 1500, 2000, 3000, 4000 Hz frequencies.When the systemic effects and etiopathogenesis of RA and PEX was thought; it was concluded that and audiovestibular system may be affected by this way

Bağ dokusu hastalarında odyovestibüler bulgular

Tez (Tıpta Uzmanlık) -- Kırıkkale Üniversitesi87309