Assessment of shear bond strength and microleakage of fissure sealant following enamel deproteinization : an in vitro study

To evaluate the effect of two different deproteinizing agents (5.25% sodium hypochlorite and Papacarie®) prior to acid etching on the shear bond strength and microleakage of a fissure sealant material. A total of 123 extracted noncarious human third molar teeth were randomly divided into three groups for each test: acid etching alone (control) (C), sodium hypochlorite (NaOCl), and Papacarie Duo® (PC). The shear bond strength tests were performed using a universal testing machine, and microleakage was evaluated using a dye penetration method. The mean shear bond strength values obtained in Group C were significantly lower than those of Group NaOCl and Group PC (p=0.0001). There were no significant differences between Group NaOCl and Group PC (p>0.05). No statistically significant difference was observed among the groups in terms of microleakage (p>0.05). Papacarie Duo® and 5.25% sodium hypochlorite treatments before etching increased the shear bond strength of the fissure sealant. However, pre-treatment with these agents did not decrease the microleakage between teeth and sealant

Influence of maternal attitudes and parenting style on children`s dental caries experience

Objective: The aim of this study was to evaluate the effect parental attitudes have on the dental caries experience in children. Methods: Cross-sectional observational data was collected via clinical examinations and questionnaires. The study included 258 mothers of children who came to Yeditepe University, Faculty of Dentistry, Department of Paediatric Dentistry for the treatment of their children. Multi-variable Poisson regression model was run to predict prevalence of dental caries (DMFT + dmft: decayed, missing, filled teeth in permanent and primary teeth, respectively). Mothers’ attitudes in family were measured by the Parental Attitude Research Instrument [PARI] questionnaire scores.. Results: Among the five factors of PARI scores, PARI Factor 3 (Rejection of Traditional House-Wife Role) and PARI Factor 5 (Level of Discipline) exhibited a statistically significant negative correlation with prevalence of caries. PARI Factor 4 (Level of Marital Conflict) had a statistically significant positive correlation with prevalence of caries. Conclusion: A healthy family environment and an empowering parental style have positive effects on the oral health of children. Continuous..

Uluslararası Çürük Belirleme ve Değerlendirme Sistemi (ICDAS) - Uluslararası Çürük Sınıflaması ve Yönetim Sistemi (ICCMS)

Bir çürük lezyonuna erken aşamada tanı konulması, diş dokusunun olabildiğince korunmasına katkıda bulunabilecek en uygun tedavi planının oluşturulmasına olanak sağlar. Diş çürüğünün belirlenmesinde ve kaydedilmesinde kullanılan sistemler arasında tutarsızlıkların olması, epidemiyolojik ve klinik çalışmalarda elde edilen sonuçların karşılaştırılabilmesini zorlaştırmaktadır. Bu nedenle; diş hekimliği eğitiminde, klinik uygulamalarda ve araştırmalarda kullanılabilecek, çürüğün tüm aşamaları ile değerlendirilmesini sağlamak amacı ile bir klinik çürük skorlama sistemi olan Uluslararası Çürük Belirleme ve Değerlendirme Sistemi (ICDAS) geliştirilmiştir. Yapılan toplantılar sonucunda ICDAS kriterleri tekrar gözden geçirilmiş ve bazı değişiklikler yapılarak ICDAS II kriterleri ortaya konulmuştur. ICDAS II baz alınarak çürüğün doğru şekilde tedavi edilebilmesi ve hastanın çürük risk grubunun belirlenerek ağız hijyeninin en iyi şekilde sürdürülebilmesi amacıyla da Uluslararası Çürük Sınıflaması ve Yönetim Sistemi (ICCMS) geliştirilmiştir. Günümüzde bu sistemler yaygın bir şekilde kullanılmaya başlanmıştır ve bu sayede diş hekimliğinde girişimsel uygulamaların azalacağı düşünülmektedir.  Anahtar kelimeler: diş çürükleri, erken teşhis, ICDAS, ICCM

Management of an unerupted dilacerated maxillary central incisor: a case report

A case with a dilacerated maxillary permanent central incisor, treated with forced eruption technique is illustrated and the results of the 4-year follow up are presented. After the successful eruption of the tooth, the root development was completed and the root canal was obliterated. The 4-year follow up results revealed the tooth to be still functional and the radiographic evaluation showed that the periodontal and periapical tissues were intact and healthy. In conclusion, the impacted dilacerated incisor diagnosed in the early mixed dentition should be treated with the aid of orthodontic traction. The long-term follow up showed that once the tooth is placed in the occlusion properly it may function well esthetically and preserve its periodontal and periapical health

Antibacterial Efficacy of Diode and Er:YAG Laser Irradiation in Experimentally Contaminated Primary Molar Root Canals

Objective: In vitro comparison of the antibacterial efficacy of Diode and Er: YAG laser irradiation with that of NaOCl irrigation in contaminated primary molar root canals. Study Design: 96 root canals prepared from 32 extracted primary molar teeth were mechanically enlarged and the teeth were randomly divided into 4 subgroups. The roots were inoculated with an overnight culture of Enterococcus faecalis in tryptic soy broth for 24 hours. The root canals irradiated with diode and Er: YAG laser and irrigated with NaOCl (5.25%) were experimental groups and untreated canals served as positive control group. Bacterial growth was analysed by counting viable E.faecalis on tryptic soy agar plates. Results: The number of bacteria was significantly reduced in experimental groups in comparison with the control group. Diode laser was determined to be more effective in reducing the number of bacteria when compared to Er: YAG laser. NaOCl irrigation was found significantly most effective. Conclusions: Diode laser irradiation and 5.25 % NaOCl application provided a significant antibacterial effect in vitro, in contaminated primary molar root canals

The Effect of Two Different Light-Curing Units and Curing Times on Bulk-Fill Restorative Materials

This study aimed to evaluate the effect of two different light-curing units and curing times on the surface microhardness (SMH), compressive strength (CS), and volumetric shrinkage (VS) of four restorative materials (FiltekTM Z250, FiltekTM Bulk Fill Posterior, Beautifil® Bulk Restorative, ACTIVATM BioACTIVE). For all tests, each material was divided into two groups depending on the curing unit (Woodpecker LED-E and CarboLED), and each curing unit group was further divided into two subgroups according to curing time (10 s and 20 s). SMH was evaluated using a Vickers hardness tester, CS was tested using a universal testing machine, and VS was measured using video imaging. In all the restorative materials cured with Woodpecker LED-E, the 20 s subgroup demonstrated significantly higher SMH values than the 10 s subgroup. In both light-curing time subgroups, the CarboLED group showed significantly higher CS values than the Woodpecker LED-E group for all restorative materials except FiltekTM Bulk Fill Posterior cured for 20 s. ACTIVATM BioACTIVE showed significantly greater volumetric change than the other restorative materials. A higher curing light intensity and longer curing time had a positive effect on the SMH and CS of the restorative materials tested in this study. On the other hand, curing unit and time did not show a significant effect on the VS values of restorative materials

Effect of two different polishing systems on fluoride release, surface roughness and bacterial adhesion of newly developed restorative materials

ObjectivesTo evaluate the effects of two different polishing systems on fluoride release, surface roughness and bacterial adhesion of five restorative material

Evaluation of the fluoride release from orthodontic band cements

Purpose: To compare the fluoride levels released from a polyacid-modified resin composite (Ultra BandLok), a resin-modified glass-ionomer cement (Multicure) and a conventional glass-ionomer cement (Meron). Metho : Fluoride concentration in the deionized water was measured at 1, 2, 3, 7, 14 and 28 days. Fluoride measurement was undertaken using a fluoride ion selective electrode connected to an ion-analyzer. Friedman test was used in the repeated measurements of multiple groups. Kruskal-Wallis test was used to compare the groups. Dunn's multiple comparison test was applied for the comparison of subgroups. Results: The fluoride release pattern of the three materials was similar. The highest level of fluoride was obtained at the 24-hour measurement from all samples. According to comparisons among materials, Ultra BandLok released significantly less fluoride than Multicure and Meron (P 0.05)