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    Bacteremia after piezocision
    (MOSBY-ELSEVIER, 2014) Ileri, Zehra; Akin, Mehmet; Erdur, Emire Aybuke; Dagi, Hatice Turk; Findik, Duygu
    Introduction: The aim of this study was to investigate the presence of transient bacteremia after a piezocision procedure. Methods: The sample consisted of 30 subjects (24 women, 6 men; mean age, 19.6 +/- 0.7 years; range, 18.1-22.4 years) with the American Society of Anesthesiologists' physical status I. All patients had Class I skeletal and dental relationships and had fixed orthodontic treatment with the Damon system. The piezocision surgery was performed 1 week after the placement of the orthodontic appliances in all patients. Two 20-mL venous blood samples were collected before and 30 to 60 seconds after the first microincision using an aseptic technique. The samples were inoculated into BACTEC Plus aerobic and anaerobic blood culture bottles and were assessed in the BACTEC blood culture analyzer (Becton Dickinson Diagnostic Instrument Systems, Sparks, Md). The results were analyzed statistically using the McNemar test, with P = 0.05 indicating statistical significance. Results: No significant difference between the preoperative and postoperative samples was determined with respect to transient bacteremia (P < 0.250). No bacteremia was detected in the pretreatment samples, although Gemella sanguinis, Streptococcus pluranimalium, and Streptococcus mitis/oralis were detected in 3 postoperative blood samples. Conclusions: The piezocision procedure might be related to transitory bacteremia. Hence, orthodontists should consider the possibility of bacterial endocarditis in at-risk patients when piezocision is part of the treatment plan.
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    Effect of Ti:sapphire laser on shear bond strength of orthodontic brackets to ceramic surfaces
    (WILEY, 2015) Erdur, Emire Aybuke; Basciftci, Faruk Ayhan
    Background and ObjectivesWith increasing demand for orthodontic treatments in adults, orthodontists continue to debate the optimal way to prepare ceramic surfaces for bonding. This study evaluated the effects of a Ti:sapphire laser on the shear bond strength (SBS) of orthodontic brackets bonded to two ceramic surfaces (feldspathic and IPS Empress e-Max) and the results were compared with those using two other lasers (Er:YAG and Nd:YAG) and conventional' techniques, i.e., sandblasting (50 mu m) and hydrofluoric (HF) acid. Materials and MethodsIn total, 150 ceramic discs were prepared and divided into two groups. In each group, the following five subgroups were prepared: Ti:sapphire laser, Nd:YAG laser, Er:YAG laser, sandblasting, and HF acid. Mandibular incisor brackets were bonded using a light-cured adhesive. The samples were stored in distilled water for 24hours at 37 degrees C and then thermocycled. Extra samples were prepared and examined using scanning electron microscopy (SEM). SBS testing was performed and failure modes were classified. ANOVA and Tukey's HSD tests were used to compare SBS among the five subgroups (P<0.05). ResultsFeldspathic and IPS Empress e-Max ceramics had similar SBS values. The Ti:sapphire femtosecond laser (16.761.37MPa) produced the highest mean bond strength, followed by sandblasting (12.79 +/- 1.42MPa) and HF acid (11.28 +/- 1.26MPa). The Er:YAG (5.43 +/- 1.21MPa) and Nd:YAG laser (5.36 +/- 1.04MPa) groups were similar and had the lowest SBS values. More homogeneous and regular surfaces were observed in the ablation pattern with the Ti:sapphire laser than with the other treatments by SEM analysis. ConclusionsWithin the limitations of this in vitro study, Ti:sapphire laser- treated surfaces had the highest SBS values. Therefore, this technique may be useful for the pretreatment of ceramic surfaces as an alternative to conventional' techniques. Lasers Surg. Med. 47:512-519, 2015. (c) 2015 Wiley Periodicals, Inc.
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    Effect of Ti:Sapphire-femtosecond Laser on the Surface Roughness of Ceramics
    (WILEY-BLACKWELL, 2015) Erdur, Emire Aybuke; Basciftci, Faruk Ayhan
    Background and Objectives: Some of these adult patients have ceramic crowns, to which orthodontists have concerns about bonding brackets. The aim of the present study was to evaluate the effect of a Ti:Sapphire femtosecond (fs) laser (Integra-C-3.5, Quantronix, NY) on the surface roughness of two ceramic surfaces (feldspathic and IPS Empress e-Max) and to compare results with those of two other lasers (Er: YAG and Nd: YAG) and conventional techniques, i.e., sandblasting (50mm) and hydrofluoric (HF) acid. Materials and Methods: Ceramic discs were fabricated (n = 150) and divided into two groups, each of which was then divided into five subgroups prepared with Ti: Sapphire fs, Nd:YAG, or Er:YAG lasers, sandblasting, or HF acid (n = 15). The surface roughness of the ceramic discs was evaluated using a profilometer (Mitotoyo Surf Test SJ 201 P/M; Mitutoyo Corp, Japan) before and after each surface treatment. Three traces were recorded for each specimen at three different locations in each direction, providing nine measurements per sample, which were then averaged to obtain the surface roughness value. Data were analyzed using the Wilcoxon signed-rank test (P < <0.05), two-way ANOVA, and Tukey's HSD test (P < 0.05). Additional samples were prepared for each group and evaluated using atomic force microscopy (AFM; NTEGRA Solaris, NTMDT, Russia). Results: No significant difference was found between the feldspathic and IPS Empress e-Max ceramics. The Ti: Sapphire fs laser was associated with the highest mean roughness value. AFM images of the ceramic surfaces treated confirmed that the fs-laser-treated surfaces had the highest degree of irregularity. Conclusion: Within the limitations of this in vitro study, the Ti: Sapphire fs laser yielded the highest surface roughness and could be an alternative ceramic surface treatment to increase bond strength. Lasers Surg. Med. 47:833-838, 2015. (C) 2015 Wiley Periodicals, Inc.
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    Eruption of an impacted canine in an adenomatid odontogenic tumor treated with combined orthodontic and surgical therapy
    (MOSBY-ELSEVIER, 2016) Erdur, Emire Aybuke; Ileri, Zehra; Ugurluoglu, Ceyhan; Cakir, Mustafa; Dolanmaz, Dogan
    An adenomatoid odontogenic tumor is an uncommon asymptomatic lesion that is often misdiagnosed as a dentigerous cyst. It originates from the odontogenic epithelium. Enucleation and curettage is the usual treatment of choice. Marsupialization may be attempted instead of extraction of the impacted tooth, since it provides an opportunity for tooth eruption. This case report is the first to report on the eruption of an impacted canine in an adenomatoid odontogenic tumor treated with combined orthodontics and marsupialization. The impacted canine erupted uneventfully, with no evidence of recurrence 3 years after the treatment.
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    Evaluation of Enamel Surface Roughness after Various Finishing Techniques for Debonding of Orthodontic Brackets
    (AVES PRESS LTD, 2016) Erdur, Emire Aybuke; Akin, Mehmet; Cime, Leyla; Ileri, Zehra
    Objective: The aim of this study was to evaluate the surface roughness of enamel after debonding with various types of burs. Methods: The buccal surfaces of 20 mandibular incisors for each group of bur were subjected to profilometer analysis, and three parameters of surface irregularity were recorded. After bracket debonding, adhesive remnants were removed by tungsten carbide burs in low-speed, high-speed, and stainbuster settings. The samples were evaluated at pre-treatment (on sound enamel) (T1) and post-treatment (T2) by a profilometer. The specimens were measured twice, and the mean values were recorded. Results: The results were analyzed in intra-group comparisons with paired t-tests and in inter-group comparisons with one-way ANOVA and Tukey's HSD test. All resin removal techniques significantly increased enamel surface roughness (p<0.05). According to one-way ANOVA, there were significant differences in the effect of enamel surface roughness between all methods (p<0.05). The high-speed bur caused the maximum roughness values and the stainbuster bur caused the minimum roughness values in all the parameters (Ra, Rz, and Rq). Conclusion: The three types of burs used for finishing methods revealed significant differences in the enamel surface after debonding. However, the stainbuster bur created smoother surfaces than the other applied methods.
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    Risperidone-induced Gingival Bleeding in a Pediatric Case: A Dose-dependent Side Effect
    (KOREAN COLL NEUROPSYCHOPHARMACOLOGY, 2016) Herguner, Sabri; Ozayhan, Hatice Yardim; Erdur, Emire Aybuke
    There are several case reports on risperidone related bleeding; however, to our knowledge, there is no report about gingival bleeding associated with risperidone in the literature. We presented a case who experienced gingival bleeding when risperidone dose was increased to 0.5 mg/day, and subsided after decreasing the dose to 0.25 mg/day, suggesting a dose-dependent side-effect. The bleeding side effect of risperidone might be caused by several mechanisms, including 5-hydroxytryptamine 2A receptor antagonism. Although bleeding associated with risperidone is rarely reported, clinicians should be aware of this side effect.