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Öğe Complex and compound odontomas : analysis of 69 cases and a rare case of erupted compound odontoma(Wolters Kluwer Medknow Publications, 2015) Bereket, Cihan; Çakır-Özkan, Nilüfer; Şener, İsmail; Bulut, Emel; Tek, MustafaObjective: The purpose of this study was to analyze clinic and radiologic features of the 69 odontoma cases and present a rare case of erupted compound odontoma in the oral cavity. Material and Methods: The 69 cases were analyzed with regard to the following parameters: age, gender, location, associated unerupted teeth, missing teeth, radiological and histopathological features and treatment protocols. Results: Of the 69 cases, 49 were compound odontoma and 20 were complex odontoma. There was a female predilection for both compound and complex odontomas. Compound odontoma occurred more often in the anterior region of the jaws; complex lesions occurred more often at the posterior mandible. The most common clinical manifestations were the retention of permanent teeth. Conclusion: Compound odontomas rarely erupt into the mouth. The presented case is the 13th case of erupted compound odontoma reported in the literature. The treatment of choice is surgical removal of the odontoma. In the case of odontomas associated to impacted teeth, the teeth should be preserved in wait of spontaneous eruption, or alternatively fenestration followed by orthodontic traction is indicated. Regular follow-up period is crucial to evaluate the prognosis of these teeth.Öğe The effect of implant therapy on maximum bite force in edentulous elderly patients: An in vivo study(2015) Şener, İsmail; Aslan, M. Ali; Tek, Mustafa; Bereket, Cihan; Arıcı, SelimIntroduction: The purpose of the present study was to compare the bite force differencesbetween conventional complete denture prostheses and implant retained overdentures. Materials and Method: The study group consisted of 15 complete denture patients. Three months after insertion of conventional dentures, the first bite force measurements were madewith a Dental Prescale sheet (Fuji Film, Tokyo). After 5 and 7 weeks, two implants were placedin the mandibular symphysis region. Three months after implant surgery, implant retained overdentures were fabricated. Three months after the insertion of implant retained overdentures, asecond set of bite force measurements was made and the values were recorded. Bite forces were compared between conventional complete dentures and implant retained overdentures andthe chewing satisfaction obtained from patients in both groups was measured using visual analogue scale. All results were evaluated statistically using a paired t-test and values of p<0.05 were considered as statistically significant.Results: Bite forces and chewing satisfaction increased in all patients after the implant retained overdenture insertion. The mean bite force values before and after implant therapy were found 194.03 ± 95.08 Newton and 302.91 ± 119.84 Newton respectively. According to the paired ttest, a statistically significant difference were found in bite forces and chewing satisfaction before and after implant therapy (p<0.05). Conclusions: The present study showed increased bite forces and chewing satisfaction after insertion of implant retained overdentures.Öğe Effects of different local haemostatic agents on facial swelling after the third molar surgery(2015) Şener, İsmail; Metin, Murat; Bereket, Mehmet Cihan; Tek, Mustafa; Arıcı, SelimIt was aimed to investigate the effects of three different local haemostatic agents (oxidized regenerated cellulose, gelatin sponge and collagen sponge) on the facial swelling after surgical removal of impacted the third mandibular molar teeth, in this study. Sixty-six healthy patients (mean age, 21.21±3.14 years) requiring bilateral impacted third molar extractions were included in this double-blind, randomized, controlled clinical study. All teeth were removed bilaterally in the same operation by one surgeon. The left side of the mandible served as the test side for local haemostasis and the right side as the control side in all patients. After removal, the primary closure of surgical wound was provided with silk sutures, in the control side. One of the absorbable haemostatic agents, oxidized regenerated cellulose (ORC), gelatin sponge (GS) and collagen sponge (CS) was placed in the extraction cavities following gauze packing for 5 minutes to prevent bleeding and after that the wound was sutured. Data was collected regarding the operating time, mouth opening, and facial swelling. Facial swelling was measured by "point counting technique" on standard posteroanterior skull radiographs. The comparisons of differences belonging to ORC, GS and CS applications on preoperative and postoperative edema showed that the differences were not statistically significant according to analysis of variance (ANOVA) (p>0.05). This study has shown that the haemostatic local agents do not have any significant effect in the facial edema.Öğe Effects of the topical hemostatic agent Ankaferd Blood Stopper on the incidence of alveolar osteitis after surgical removal of an impacted mandibular third molar(Wolters Kluwer Medknow Publications, 2014) Tek, Mustafa; Akkaş, İsmail; Toptaş, Orçun; Özan, Fatih; Şener, İsmailBackground: Alveolar osteitis (AO) is a commonly seen post-operative complication during the wound-healing period after permanent tooth extraction or surgical removal of impacted third molar teeth. Objectives: The aim of this clinical study was to evaluate the effects of administration of the topical hemostatic agent Ankaferd Blood Stopper (ABS) into the socket on AO formation after impacted mandibular third molar extraction. Patients and Methods: Bilaterally, 100 half-impacted mandibular third molars were extracted in 50 patients. Then, 1.0 mL ABS was administered to achieve hemostasis in one half of the sockets and as a control, the other half was irrigated with 1.0 mL physiological serum after surgery. Results: There was no statistically significant difference in terms of AO formation (P > 0.05) between the extraction sites. However, the postoperative pain in ABS administration sites was higher than in the other sites for the first 2 days after surgery (P < 0.05). Conclusions: The results showed that ABS administration did not increase the incidence of AO formation. Thus, ABS can be used safely for hemostasis after impacted mandibular third molar surgery.Öğe The effects of zoledronic acid on mandibular fracture healing in an osteoporotic model : a stereological study(Lippincott Williams & Wilkins, 2013) Şener, İsmail; Bereket, Cihan; Köşker, Hüseyin; Türer, Akif; Tek, MustafaThe aim of this study was to evaluate the effect of zoledronic acid (ZA) in the ovariectomized rat on mandibular fracture. Corpus osteotomies were performed on the mandible of ovariectomized rats. Miniplates were placed on these rats, which were randomly divided into 4 groups. After 7 days, groups 3 and 4 were injected with 0.1 mg/kg ZA. Groups 1 and 2 were control groups, so they were injected 0.1 mg/kg saline solution. Animals in groups 1 and 3 were killed at 4 weeks, whereas groups 2 and 4 were killed 8 weeks after operation. The new bone volume of the fracture gap was examined stereologically. Although the difference was not statistically significant compared with the other groups (groups 1 and 3), more bone formation was found in ZA-treated groups (groups 2 and 4) (P < 0.05).Öğe Periapikal granulomların aerop ve anaerop mikrobiyolojik incelemesi(2012) Tek, Mustafa; Metin, Murat; Şener, İsmail; Bereket, Mehmet Cihan; Karadağ, AdilAmaç: Modern laboratuar teknikleri kullanarak periapikal granulomlardaki mikroorganizmaları tespit etmek ve güncel literatür ışığında tartışmaktır. Gereç ve Yöntem: 15’i erkek, 20’si kadın toplam 35 hastadan, apikal küretaj yöntemi ile periapikal granulom örnekleri alındı. Daha sonra, her bir örneğin aerop ve anaerop mikrobiyolojik kültürleri oluşturuldu. Sonuçlar istatistiksel olarak değerlendirildi. Bulgular: 35 klinik materyalin 11 tanesinden (% 31,42) mikroorganizma izole edildi. İzole edilen mikroorganizmaların yüzde sıklık sırası: Streptococcus sanguis (% 20), Streptococcus anginosus (% 13,3), Streptococcus constellatus (% 13,3), Streptococcus milleri (% 13,3), Propionibacterium acnes (% 6,6), Bacteroides capillosus (% 6,6), Staphylococcus xylosus (% 6,6), Actinomyces meyeri (% 6,6), Candida albicans (% 6,6) tır. Sonuç: İzole edilen mikroorganizmalar içerisinde en sık streptokok türü bakteriler olduğu belirlendi. Bu sonuçlara göre periapikal granulomların doğası gereği polimikrobiyal olabileceği gözlemlendi.Öğe The predominant bacteria isolated from radicular cysts(Bmc, 2013) Tek, Mustafa; Metin, Murat; Şener, İsmail; Bereket, Cihan; Tokaç, MuratPurpose: To detect predominant bacteria associated with radicular cysts and discuss in light of the literature. Material and methods: Clinical materials were obtained from 35 radicular cysts by aspiration. Cultures were made from clinical materials by modern laboratory techniques, they underwent microbiologic analysis. Results: The following are microorganisms isolated from cultures: Streptococcus milleri Group (SMG) (23.8%) [Streptococcus constellatus (19.1%) and Streptococcus anginosus (4.7%)], Streptococcus sanguis (14.3%), Streptococcus mitis (4.7%), Streptococcus cremoris (4.7%), Peptostreptococcus pevotii (4.7%), Prevotella buccae (4.7%), Prevotella intermedia (4.7%), Actinomyces meyeri (4.7%), Actinomyces viscosus (4.7%), Propionibacterium propionicum (4.7%), Bacteroides capillosus (4.7%), Staphylococcus hominis (4.7%), Rothia denticariosa (4.7%), Gemella haemolysans (4.7%), and Fusobacterium nucleatum (4.7%). Conclusions: Results of this study demonstrated that radicular cysts show a great variety of anaerobic and facultative anaerobic bacterial flora. It was observed that all isolated microorganisms were the types commonly found in oral flora. Although no specific microorganism was found, Streptococcus spp. bacteria (47.5%) - especially SMG (23.8%) - were predominantly found in the microorganisms isolated. Furthermore, radicular cysts might be polymicrobial originated. Although radicular cyst is an inflammatory cyst, some radicular cyst fluids might be sterile.Öğe Propolis accelerates the consolidation phase in distraction osteogenesis(Lippincott Williams & Wilkins, 2014) Bereket, Cihan; Özan, Fatih; Şener, İsmail; Tek, Mustafa; Altunkaynak, Berrin ZuhalWe evaluated the effect of propolis on new bone formation after distraction osteogenesis (DO). This study examined 3 groups: control group, P100, and P200. Rabbits underwent DO of the left mandible after an osteotomy between the first molar and the mental foramen. Bone mineral content and bone mineral density were evaluated using dual-energy x-ray absorption 1 and 4 weeks after the procedure. The volume of connective tissue and new bone and the number of capillaries were measured using stereologic analysis after the subjects were killed. Dual-energy x-ray absorption showed that the bone mineral content and bone mineral density were higher in the groups treated with propolis by week 4, and these parameters were higher in the P200 group. Stereologic analysis showed no significant differences in connective tissue volume and number of capillaries among the groups. New bone volume was lowest in the P200 group. We concluded that propolis accelerates bone formation and may shorten the consolidation phase with DO.
