Ceyda Özçakır Tomruk

Endodontic and surgical management of a maxillary lateral incisor with type III dens invaginatus: a 12-month follow-up

This article reports the endodontic and surgical management and 12-month follow-up of a maxillary lateral incisor diagnosed as type III dens invaginatus. A 21-year-old male patient presented to our clinics with complaints of pain and swelling in the right maxillary region. Intraoral and radiographical examination disclosed the presence of a peg-shaped maxillary right lateral incisor diagnosed as type III dens invaginatus. Root canal treatment combined with periapical surgery was initiated. After the completion of root canal treatment for both maxillary right central and lateral incisors, periapical surgery was scheduled. During the surgery, periapical granulation tissue was curreted and bovine-derived hydroxil apatite (Unilab-Surgibone, Mississauga, Ontario, Canada) covered with collagen membrane (Unilab-Surgibone) was placed in the resorptive areas. ProRoot MTA (Dentsply, Tulsa, OK) was placed as a root end filling material. Postoperative 12-month follow-up revaled a satisfactory healing process.

Histopathological evaluation of the effect of systemic thymoquinone administration on healing of bone defects in rat tibia

ABSTRACT The aim of the present study was to assess the systemic effect of thymoquinone (TQ) on bone healing by starting TQ administration, either 40 days before, or on the day of the surgical procedure and continuing during the healing period of 28 days. Eighteen experimental rats were divided into three groups and defects were created in their tibias. The following procedures were performed for each group: Control group (C): No systemic drug administration (n = 6); Test group 1 (T1): Systemic TQ was administered daily starting 40 days before creation of the defect and additionally during the post-operative healing period of 28 days (n = 6); Test group 2 (T2): Systemic TQ was administered daily after creation of the defect and during the healing period of 28 days (n = 6). Quantitative measurement for new bone formation, osteoblast lining and semi-quantitative measurement of capillary intensities were examined and statistically analysed. There was a significant increase in the ratio of new bone per total defect area and new bone trabeculae lined by active osteoblasts in both test groups (T1 and T2) compared to control group (p < 0.05). However the difference between T1 and T2 was not statistically significant. TQ-administered groups also showed an increase in capillary intensity in the defect area compared to the control group (p < 0.05). Systemic administration of TQ either starting 40 days before or on the day of surgery accelerated new bone formation in a rat model and can be advocated as an adjunct to expedite bone healing.

Evaluation of Significant Radiographic Findings and Their Impact on the Oral Health–Related Quality of Life of Patients with Complete Dentures

PURPOSE The aim of this study was to assess the frequency and location of positive radiographic findings in edentulous patients and to evaluate the oral health-related quality of life (OHRQoL) and complacency of patients with positive radiologic findings. MATERIALS AND METHODS A total of 1,349 asymptomatic edentulous patients were retrospectively evaluated using a digital panoramic system for the presence of retained root fragments, impacted teeth, foreign bodies, radiolucencies, radiopacities, mental foramen at or near the alveolar crest, and maxillary sinus pneumatization. The patients with positive findings were called for a follow-up to take a new panoramic radiograph. The functional status and symptoms of participants were measured with the Oral Health Impact Profile (OHIP-14). RESULTS At least one or more of the radiographic findings were observed in 35.21% of the evaluated radiographs. The most frequent finding was sinus pneumatization (20.9%). The mean total OHIP score was 9.74 ± 8.34. There was no statistically significant difference observed for gender, age, education levels, marital status, or having surgical interventions for total OHIP-14 scores (P > .05). CONCLUSION The results of this study suggest that routine radiographic examination of edentulous patients may not be crucial before rehabilitation, and using a total percentage of positive radiographic findings may result in the exaggeration of the disease risk in edentulous patients.

DENTAL PATIENTS’ KNOWLEDGE AND AWARENESS ABOUT TRANSMISSION WAYS OF ACQUIRED IMMUNE DEFICIENCY SYNDROME (AIDS)

Purpose: The aim of this study was to evaluate the patients’ attitude, knowledge and awareness about HIV/AIDS. And secondary aim was to assess the need for further education about HIV/AIDS. Materials and Methods: A questionnaire of 39 items was used to evaluate the patients’ knowledge. 301 patients were included (mean age 37.12±7.85 years, 41.5% male, 58.5% female) in the study. Results were calculated by Students t-test, Chi-square test, Fisher’s exact test. Results: Most of the patients had accurate knowledge about transmission ways, however transmission through breastfeeding (31.6%), public restrooms (44.9%), and insects and mosquitos bite (47.2%) were less recognized. Saliva (32.2%), urine (36.9%), tears (58.5%), sweat (54.5%), breast milk (30.6%), feces (36.9%) and cerebrospinal fluid (7.3%) were less recognized body fluids. Generally university and postgraduate educated patients had more accurate knowledge than other groups. 63.1% of patients thought that they need further education about HIV/AI DS. Conclusion: The results of this study showed that the knowledge level about HIV/AIDS was almost agreeable. However, the patients had deficiencies with respect to their knowl-edge. Therefore the authors of this study believe that there must be education programs related to HIV/AIDS.

Prevalence of sinus floor elevation procedures and survival rates of implants placed in the posterior maxilla

ABSTRACT The aim of this study was to assess the prevalence of sinus-lifting procedures and survival rates of implants placed in the posterior maxilla. This retrospective chart review examined consecutive patients with tooth/teeth loss in the posterior maxilla between 2008 and 2012 treated with sinus lift, when needed, and implant insertion. Demographic variables, health status, residual alveolar bone height, augmentation types, the implant position, diameter and height, and implant failure, prosthesis types, and the marginal bone loss were recorded. The study included 302 patients at a mean age of 5.2 years, who received a total of 609 dental implants. A total of 380 (62.3%) implants were inserted in native areas, 203 (33.3%) ones in external sinus-lifted areas and 26 (4.4%) ones in internal lifted areas. The survival rate in native or internal lifted areas were 100% and 95.6% in external sinus lifted ones (10 implant failures/203 implants). Almost half of the implants were examined radiologically with a mean duration of 30 months and the mean marginal bone loss was 0.64 ± 1.2 mm. The results showed that the survival rates of native bone and the internal sinus lifting were slightly higher than that of external sinus lifting. Implants placed with sinus augmentation exhibited more marginal bone loss than implants in native bone.

Preventive effect of doxycycline sponge against bisphosphonate-related osteonecrosis of the jaws: an animal study

ABSTRACT The aim of this study is to investigate the effect of doxycycline collagen sponge on bisphosphonate-related osteonecrosis of the jaw (BRONJ) and the level of serum biomarkers as an indicator of osteonecrosis. Twenty-four rats were divided into four groups. Animals in the control group were injected with saline and animals in Groups I, II and III were injected with zoledronate three times a week for eight weeks. After eight weeks, the following procedures were performed in each group. In Group I: extraction of maxillary first molar, in Group II: extraction of maxillary first molar and mucoperiosteal coverage was performed and in Group III: extraction of maxillary first molar and mucoperiosteal coverage with doxycycline collagen sponges was performed. At the end of 16 weeks, all animals were sacrificed. Serum collagen type I C-telopeptide (CTx), tartrate-resistant acid phosphatase (TRACP 5b) and alkaline phosphatase (ALP) levels’ analysis, clinical examination, histological and histomorphometrical analysis were performed. As a result no significant difference in CTx, TRACP 5b and ALP levels was observed between groups. Complete mucosal healing was observed in all animals in the control group and 66.7% of animals in Group III. The necrotic bone area in Group III was significantly lower than the other groups (p < 0.01). Statistically significant difference was observed between groups in terms of detached osteoclast number (p < 0.01). In conclusion, local application of doxycycline could have a positive effect in reducing the risk of BRONJ in rats.

Yeditepe Üniversitesi Diş Hekimliği Fakültesi öğrencilerinin, kan ve vücut sıvılarıyla bulaşan enfeksiyonlar, enfeksiyon kontrolü ve hepatit B enfeksiyonu ile ilgili bilgi düzeylerinin, tutumlarının ve hepatit B aşılanma ve serolojik durumlarının değerlen

Amac: Bu calismanin amaci Yeditepe Universitesi Dis Hekimligi Fakultesi ogrencilerinin kan ve vucut sivilariyla bulasan enfeksiyonlar, enfeksiyon kontrol yontemleri ve hepatit B virusu (HBV) enfeksiyonu ile ilgili bilgi duzeylerini ve tutumlarini degerlendirmek, ve HBV asilanma ve serolojik durumlarini incelemektir. Gerec ve Yontem : Yeditepe Universitesi Dis Hekimligi Fakultesi’nde, 2010-2011 yilinda egitim goren 261 ogrenciye, HBV bilgi duzeyleri, asilanma durumlari ve enfeksiyon kontrolu konusundaki 52 sorudan olusan anket formlari dagitildi. Sonuclar, tanimlayici istatistiksel metodlar, Student t testi, Ki-Kare testi ve Fisher’s Exact Ki-Kare testi kullanilarak degerlendirildi. Veriler p<0,05 anlamlilik duzeyinde degerlendirildi. Bulgular: Yas ortalamasi 21,29 olan ogrencilerin 123’u (%47,1) kendilerini HBV acisindan risk grubunda gormekteydi. Ogrencilerin 207’sinin (%79,3) HBV asisi yaptirdigi, 142’sinin (%54,4) HBV serolojilerini kontrol ettirdikleri saptandi. 7 (%2,7) ogrenci HBV tasiyicisi oldugunu bildirdi. Kiz ogrencilerin HBV serolojilerini kontrol etme, asi dozlarini tamamlamis olma ve koruyucu yanit gelisme oranlarinin erkek ogrencilerden anlamli sekilde yuksek oldugu belirlendi (p<0,01). Sinif yukseldikce ogrencilerin kendilerini risk grubunda gorme, asi dozlarini tamamlamis olma, titre olcturme islemi yapmis olma ve koruyucu yanit gelisme oranlarinin anlamli sekilde arttigi gozlendi (p<0,01). Kan ve vucut sivilari ile bulasan enfeksiyonlar ile ilgili genel bilgi duzeyleri incelendiginde preklinik ve klinik siniflar arasinda anlamli bir fark bulunurken, riskli islemler ve koruyucu onlemler ile ilgili bilgi duzeyleri incelendiginde preklinik ve klinik ogrenciler arasinda anlamli bir fark bulunmadi. Sonuc: Dis hekimligi ogrencilerinin HBV’ye karsi 1.siniftan itibaren asilanmasi zorunlu hale getirilmeli, kan ve vucut sivilariyla bulasan enfeksiyonlar ve HBV ile ilgili bilgi duzeyleri duzenli olarak olculmeli, yururlukte olan sterilizasyon ve dezenfeksiyon islemlerini uygulatmaya yonelik egitimler arttirilmalidir. Aim: The aim of this study was to evaluate the dental students knowledge and attitude about infections transmitted by blood and body fluids, infection control measures, hepatit B virus infection and their serological and hepatitis B vaccination status. Material and Method: A questionnaire prepared to measure the knowldge levels about infections transmitted by blood and body fluids, infection control measures, hepatit B virus infection , serological and hepatitis B vaccination status of 261 students, educating at University of Yeditepe, Faculty of Dentistry in 2010-2011 academic year was distrubuted. Results: The mean age of the students were 21,29 and 123 of them (%47,1) tought that they were at risk in terms of Hepatitis B virus (HBV). It was determined that 207 students vaccined against to HBV, and of them 142 (%54,4) had controlled their HBV serologies. Seven students stated that they are HBV carrier. It was determined that the ratio of female students that control their HBS serologies and completion of HBV vaccination are significantly higher than male students (p<0.01). It was observed that the number of students who perceived themselves at risk, got tested and developed a protective immune response showed a significant increase in the upper grades (p<0,01). While there was a significant difference between the preclinic students and clinic students in terms of the level of general information on infections that are transmitted by blood and othe body fluids, there was no significant difference among the two groups of students in terms of the level of information on risky procedures and preventive care. Conclusion: Dental students must be completed their hepatitis B virus vaccination in the first year, and their knowledge about infections transmitted by blood and body fluids and hepatitis B virus should be measured regularly and the number of education programs about current sterilisation and disinfection procedures must be increased. Key Words: Hepatit B virus, infection, knowledge level, dental students