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Öğe Alveolar bone changes after asymmetric rapid maxillary expansion(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2015) Akin, Mehmet; Baka, Zeliha Muge; Ileri, Zehra; Basciftci, Faruk AyhanObjective: To quantitatively evaluate the effects of asymmetric rapid maxillary expansion (ARME) on cortical bone thickness and buccal alveolar bone height (BABH), and to determine the formation of dehiscence and fenestration in the alveolar bone surrounding the posterior teeth, using cone-beam computed tomography (CBCT). Materials and Methods: The CBCT records of 23 patients with true unilateral posterior skeletal crossbite (10 boys, 14.06 +/- 1.08 years old, and 13 girls, 13.64 +/- 1.32 years old) who had undergone ARME were selected from our clinic archives. The bonded acrylic ARME appliance, including an occlusal stopper, was used on all patients. CBCT records had been taken before ARME (T1) and after the 3-month retention period (T2). Axial slices of the CBCT images at 3 vertical levels were used to evaluate the buccal and palatal aspects of the canines, first and second premolars, and first molars. Paired samples and independent sample t-tests were used for statistical comparison. Results: The results suggest that buccal cortical bone thickness of the affected side was significantly more affected by the expansion than was the unaffected side (P < .05). ARME significantly reduced the BABH of the canines (P < .01) and the first and second premolars (P < .05) on the affected side. ARME also increased the incidence of dehiscence and fenestration on the affected side. Conclusions: ARME may quantitatively decrease buccal cortical bone thickness and height on the affected side.Öğe Asymmetric rapid maxillary expansion in true unilateral crossbite malocclusion: A prospective controlled clinical study(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2015) Ileri, Zehra; Basciftci, Faruk AyhanObjective: To investigate the short-term effects of the asymmetric rapid maxillary (ARME) appliance on the vertical, sagittal, and transverse planes in patients with true unilateral posterior crossbite. Materials and Methods: Subjects were divided into two groups. The treatment group was comprised of 21 patients with unilateral posterior crossbite (mean age = 13.3 +/- 2.1 years). Members of this group were treated with the ARME appliance. The control group was comprised of 17 patients with Angle Class I who were kept under observation (mean age = 12.3 +/- 0.8 years). Lateral and frontal cephalograms were taken before the expansion (T1), immediately after expansion (T2), and at postexpansion retention (T3) in the treatment group and at preobservation (T1) and postobservation (T2) in the control group. A total of 34 measurements were assessed on cephalograms. For statistical analysis, the Wilcoxon test and analysis of covariance were used. Results: The ARME appliance produced significant increases in nasal, maxillary base, upper arch, and lower arch dimensions (P < .01) and a clockwise rotation of the occlusal plane (P = .001). Conclusion: The ARME appliance created asymmetric increments in the transversal dimensions of the nose, maxilla, and upper arch in the short term. Asymmetric expansion therapy for subjects with unilateral maxillary deficiency may provide satisfactory outcomes in adolescents, with the exception of mandibular arch expansion. The triangular pattern of expansion caused clockwise rotation of the mandible and the occlusal plane and produced significant alterations in the vertical facial dimensions, whereas it created no displacement in maxilla in the sagittal plane.Öğe Attention-deficit/hyperactivity disorder symptoms in children with traumatic dental injuries(WILEY-BLACKWELL, 2015) Herguner, Arzu; Erdur, Aybuke Emire; Basciftci, Faruk Ayhan; Herguner, SabriAim: The aim of this study was to compare the symptoms of attention-deficit/hyperactivity disorder (ADHD) in children with TDIs withto non-injured children. Material and methods: Children between 7 and 16 years old who were admitted to the Selcuk University, Faculty of Dentistry, for treatment of dental trauma were included in the study group (SG). As a control group (CG), children with no reported history of dental trauma were recruited. The Conners' Parent Rating Scale-Revised: Short Form (CPRS-R:S) was used to assess ADHD symptoms. Results: Both groups, SG and CG, composed of 55 children. There were no significant differences in age, gender, and duration of education between SG and CG. Children with TDIs had significantly higher CPRS-R: S Hyperactivity scores. Hyperactivity level was positively correlated with the history of previous dental trauma. There were no associations between number of injured teeth, type of injury, and ADHD symptoms. Conclusions: These findings suggest that children with TDIs have more hyperactive symptoms than children without dental trauma. Clinicians should screen ADHD symptoms in children with TDIs and refer them for treatment when necessary.Öğe Biomechanical evaluation of chincup treatment with various force vectors(MOSBY-ELSEVIER, 2008) Basciftci, Faruk Ayhan; Korkmaz, Hasan Huesnue; Uesuemez, Serdar; Eraslan, OguzThe aim of this study was to evaluate the biomechanical effects of chincup treatment by using a 3-dimensional finite element model. Methods: Three-dimensional models of the mandible and the temporomandibular joint were modeled and analyzed. The final mesh consisted of 1572 solid elements with 5432 nodes. The chincup with 500 g of force was applied in a direction from the chin toward the mandibular condyle, the coronoid process, and a point anterior to the coronoid process. Then, the mechanical responses in terms of displacement and von Mises stresses are evaluated. Results: The mandible was displaced backward and downward with the vector passing through the condyle. Forward and upward displacement was recorded with the force vector passing through or anterior to the coronoid process. The mandibular condyle and the coronoid process showed minimal displacement for all force vectors. The highest stress levels were observed in the condylar and posterior ramus regions and increased as the force vector was transferred away from the condyle. Conclusions: With the limitations of modeling, boundary conditions, and solution assumptions, chincups applied in various directions produce different force vectors, which induce different stress locations and displacements. The force vector is an important determinant of the orthopedic effects of the chincup and therefore should be carefully considered. (Am J Orthod Dentofacial Orthop 2008; 134: 773-81)Öğe Can demineralized enamel surfaces be bonded safely?(TAYLOR & FRANCIS LTD, 2014) Akin, Mehmet; Baka, Zeliha Muge; Ileri, Zehra; Basciftci, Faruk AyhanObjective. To evaluate and compare the effects of enamel demineralization, microabrasion therapy and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) application on the shear bond strength (SBS) of orthodontic brackets bonded to enamel surfaces and enamel color. Materials and methods. Eighty freshly extracted human maxillary premolar teeth were allocated to one of the four groups. Brackets were bonded directly to non-demineralized enamel surfaces in Group I (control group), directly to the demineralized enamel surfaces in Group II, to demineralized enamel surfaces after CPP-ACP application in Group III and to demineralized enamel surfaces after microabrasion therapy in Group IV. The samples were stored in water for 24 h at 37 degrees C and then underwent thermocycling. The SBS in megapascals (MPa) was determined by a shear test with 0.5 mm/min crosshead speed and failure types were classified with modified adhesive remnant index scores. The data were analyzed with one-way analyses of variance (ANOVA), Tukey and chi-square tests at the alpha = 0.05 level. Results. Significant differences were found among the four groups (F = 21.57, p < 0.01). No significant difference was found between Group I and III (17.12 +/- 2.84 and 15.08 +/- 3.42 MPa, respectively) or between Group III and IV (12.82 +/- 2.64 MPa). The lowest SBS value was determined in Group II (5.88 +/- 2.12 MPa). Enamel demineralization, microabrasion therapy and CPP-ACP application affected enamel color significantly. Conclusion. CPP-ACP application and microabrasion therapy are able to increase the decreased SBS of orthodontic brackets because of enamel demineralization.Öğe Can white spot lesions be treated effectively?(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2012) Akin, Mehmet; Basciftci, Faruk AyhanObjective: To compare the effects of sodium fluoride mouth rinse, casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), and the microabrasion technique in treating white spot lesions. Materials and Methods: The study population consisted of 80 patients (46 females, 34 males; 966 affected teeth) who had developed multiple decalcified enamel lesions after fixed orthodontic therapy. The study population was divided into four groups of 20 patients each. The control group (group I) participants were to just brush their teeth, the fluoride group (group II) participants were instructed to use 20 ml of neutral 0.025% sodium fluoride rinse, the participants in the CPP-ACP group (group III) were instructed to use tooth mousse twice a day in addition to fluoride toothpaste for 6 months, and the participants in the microabrasion group (group IV) were to undergo treatment by the microabrasion technique, which is a commonly used mixture of 18% hydrochloric acid. Data were analyzed with the generalized linear mixed model and Tukey HSD at the P < .05 level. Results: The area of the white spot lesions decreased significantly in all groups. Inter group differences in the treatment success rates were significant. The highest success rate was observed for group IV (97/0). The success rate of group III (58%) was significantly higher than that of groups II (48%) and I (45%). Conclusions: The use of CPP-ACP can be more beneficial than fluoride rinse for postorthodontic remineralization. Microabrasion is an effective treatment for cosmetic improvement of long-standing white spot lesions. (Angle Orthod. 2012;82:770-775.)Öğe Comparison of the outcomes of the lower incisor extraction, premolar extraction and non-extraction treatments(OXFORD UNIV PRESS, 2012) Ileri, Zehra; Basciftci, Faruk Ayhan; Malkoc, Siddik; Ramoglu, Sabri IlhanThe aim of this retrospective study was to evaluate the treatment outcome of lower incisor extraction and to compare it with premolar extraction and non-extraction treatment. The sample consisted of 60 subjects with Class I malocclusion and moderate crowding. The sample was separated into three groups: extraction of a lower incisor group, extraction of a four first premolar group and a non-extraction group. All groups involved 13 girls and 7 boys with a total of 20 patients. The Peer assessment rating (PAR) index was applied to a patient's pre-treatment (T1) and post-treatment (T2) dental casts. T1 dental casts were also used for determining Bolton discrepancy. One-way analysis of variance and post hoc Tukey HSD tests were used for statistical analysis. For the mean percentage PAR score reduction for each group, there was one significant difference seen between the lower incisor extraction group and the non-extraction group (P = 0.047). For the mean anterior ratios, there were significant differences among premolar extraction group versus non-extraction group (P = 0.042) and non-extraction group versus lower incisor extraction group (P = 0.000). For the mean overall ratios, there were significant differences among the premolar extraction group versus lower incisor extraction group (P = 0.048) and the non-extraction group versus lower incisor extraction group (P = 0.001). Orthodontic treatment without extraction has a better treatment outcome than the four-first premolar extraction and single lower incisor extraction protocols in Class I cases with moderate to severe mandibular anterior crowding.Öğe Conventional and high intensity halogen light effects on water sorption and microhardness of orthodontic adhesives(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2008) Uysal, Tancan; Basciftci, Faruk Ayhan; Sener, Yagmur; Botsali, Murat Selim; Demir, AbdullahObjective: To test the null hypothesis that when the equivalent total light energy is irradiated to three orthodontic adhesive resins, there is no difference between the microhardness and water sorption values regardless of the curing light sources. Materials and Methods: Samples were divided into six groups according to the combination of three orthodontic adhesives (Kurasper F, Light-Bond, Transbond XT) and two light intensities (quartz tungsten halogen [QTH] and high intensity quartz tungsten halogen [HQTH]). One half of each of the 40 samples of three adhesive pastes was polymerized for 20 seconds by a QTH light source, and the other half was polymerized for 10 seconds by a HQTH light source. Water sorption was determined and Vickers hardness was established with three measurements per sample at the top, center, and bottom. Statistical analysis was performed using two-way analysis of variance (ANOVA) with multiple comparisons (Tukey-HSD). Results: Statistically significant differences were found among all adhesives for water sorption and hardness values cured with QTH and HQTH. The HQTH curing unit resulted in higher values than did the QTH. The highest water sorption values were observed for Kurasper F cured with HQTH and the lowest value was observed for Transbond XT cured with QTH. For microhardness Light-Bond cured with HQTH produced the highest values, and Transbond XT cured with QTH produced the lowest. Conclusions: When the equivalent total light energy is irradiated to three orthodontic adhesive resins, there are significant differences between the microhardness and water sorption values cured with the QTH and HQTH light source. The null hypothesis is rejected.Öğe Effect of menstrual cycle on orthodontic pain perception A controlled clinical trial(URBAN & VOGEL, 2016) Ileri, Zehra; Baka, Zeliha Muge; Akin, Mehmet; Apiliogullari, Seza; Basciftci, Faruk AyhanThe aim of this prospective, single-center, controlled clinical trial was to evaluate the effects of menstrual cycle phases on orthodontic pain perception. A total of 48 women between 16 and 20 years old with regular menstrual periods who were scheduled to undergo extraction of two upper first premolars for orthodontic treatment were enrolled in this study. Laceback ligatures were used to move canines distally. After activating the laceback ligatures, each patient completed a questionnaire in order to assess pain and quality of life. Pain perception was recorded by patients on a visual analogue scale (VAS) and a verbal rating scale-4 (VRS) immediately after activation (T1) and 24 h after activation (T2). During the appointment, each patient's menstrual-cycle phase (follicular or luteal) was determined by asking some questions about her cycle. For statistical analysis of data, the Mann-Whitney U, independent t test, and Wilcoxon tests were applied. Mean orthodontic pain score was 1.96 +/- 0.80 and 47.08 +/- 21.68 in the follicular phase, 1.92 +/- 0.82 and 46.25 +/- 18.92 in the luteal phase at T1 using the VRS and VAS, respectively. Orthodontic pain scores were worse in those patients in the luteal phase than those in the follicular phase (p < 0.05) in terms of both VRS (p = 0.025) and VAS (p = 0.046). No significant difference between pain scores at T1 and those at T2 in both luteal and follicular phases (p > 0.05) were observed. The menstrual phase has an influence on the perception of orthodontic pain which is higher in the luteal phase following the activation of laceback ligatures. In clinical practice, the phases of the menstrual cycle may have a significant role in how women perceive orthodontic pain.Öğe Effect of Nd:YAG Laser Bleaching and Antioxidizing Agents on the Shear Bond Strength of Brackets(MARY ANN LIEBERT, INC, 2013) Akin, Mehmet; Ozyilmaz, Ozgun Yusuf; Yavuz, Tevfik; Aykent, Filiz; Basciftci, Faruk AyhanObjective:The aims of this study were to evaluate the effect of hydrogen peroxide bleaching agents, both nonactivated and activated by a neodymium:yttrium-aluminum-garnet (Nd:YAG) laser, and of antioxidant treatment on the shear bond strength (SBS) of orthodontic brackets. Background data:Nd:YAG laser activation is expected to accelerate the bleaching therapy without decrease shear bond strength. Materials and methods: Ninety extracted maxillary central incisors were divided into two experimental groups and a control group. Group I was the control group, Group II was bleached with 35% hydrogen peroxide and had no photoactivation, and Group III was bleached with 35% hydrogen peroxide with activation by a Nd:YAG laser (4.0 W, 60 Hz frequency, 1mm distance, 20 sec). Each group was divided into two subgroups:Subgroup A was immersed in artificial saliva for 2 weeks, and then bonded using the total etch system, whereas subgroup B was treated with an antioxidant agent (10% sodium ascorbate) and then bonded using the same system. The samples were stored in water for 24 h at 37 degrees C, and thermocycled. The SBS in megapascals (MPa) was determined by a shear test with 1mm/min crosshead speed, and failure types were classified with modified adhesive remnant index scores. The data were analyzed with two way analyses of variance, Tukey, and chi(2) tests at the alpha = 0.05 level. Results:In both Groups II and III, the SBSs of brackets bonded after bleaching (Group II 15.16, Group III 17.50 MPa) were significantly lower than those of brackets in the bonded unbleached group (Group I 22.13MPa); however, sodium ascorbate treatment significantly increased the SBSs of brackets in the bleached groups (Group II 21.52, Group III 22.43MPa), but had an insignificant effect on the SBS of the control group (Group I 23.66MPa). Conclusions: Hydrogen peroxide bleaching agents reduce the SBSs both with and without Nd:YAG laser activation; however, treatment of the bleached enamel surface with 10% sodium ascorbate prior to bonding negates the effect.Öğe Effect of Ti:sapphire laser on shear bond strength of orthodontic brackets to ceramic surfaces(WILEY, 2015) Erdur, Emire Aybuke; Basciftci, Faruk AyhanBackground 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.Öğe Effect of Ti:Sapphire-femtosecond Laser on the Surface Roughness of Ceramics(WILEY-BLACKWELL, 2015) Erdur, Emire Aybuke; Basciftci, Faruk AyhanBackground 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.Öğe Effects of 2 bracket and ligation types on plaque retention: A quantitative microbiologic analysis with real-time polymerase chain reaction(MOSBY-ELSEVIER, 2013) Baka, Zeliha Muge; Basciftci, Faruk Ayhan; Arslan, UgurIntroduction: The aim of this study was to evaluate the effects of self-ligating brackets and conventional brackets ligated with stainless steel ligatures on dental plaque retention and microbial flora. Methods: Twenty boys (mean age, 14.2 +/- 1.5 years) underwent bonding with self-ligating bracket systems and conventional standard edgewise bracket systems ligated with stainless steel ligatures with a split-mouth design. Clinical measurements, including plaque index, probing pocket depth, and bleeding on probing, were obtained before bonding, 1 week after bonding, and 3 months after bonding. Supragingival plaque samples were obtained at baseline and 3 months after bonding for the detection of bacteria. A quantitative analysis for Streptococcus mutans, Streptococcus sobrinus, Lactobacillus casei, and Lactobacillus acidophilus was performed using real-time polymerase chain reaction. The Mann-Whitney U test and the Hotelling T-2 multivariate test were used for statistical comparisons of the groups. Results: The numbers of S mutans, S sobrinus, L casei, and L acidophilus were not statistically different between self-ligating brackets and conventional brackets ligated with stainless steel ligatures (P>0.05). The 2 archwire ligation techniques showed no statistically significant differences in plaque index, bleeding on probing, and probing pocket depth values of the bonded teeth (P>0.05). All clinical parameters and the numbers of all microorganisms showed statistically significant increases from baseline to 3 months after bonding in both groups (P<0.001). Conclusions: Self-ligating brackets and conventional brackets ligated with stainless steel ligatures do not differ with regard to dental plaque retention.Öğe The effects of rapid maxillary expansion on voice function(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2017) Yurttadur, Gizem; Basciftci, Faruk Ayhan; Ozturk, KayhanObjective: To evaluate the effects of rapid maxillary expansion (RME) on vocal function in patients with bilateral maxillary crossbite. Materials and Methods: We designed our research as a prospective, controlled, clinical study. The treatment group and the control group each had 20 subjects for a total of 40 subjects. Acoustic voice samples were recorded from all patients at T-1 and T-2 by the Multi-Dimensional Voice Program (MDVP Model 5105) for acoustic analysis in Computerized Speech Lab (CSL). Results: No statistically significant differences were found between the treatment and control groups in the means of any parameters. Conclusions: RME does not change vocal quality or resonance, so it can be safely used with patients.Öğe Effects of remineralization procedures on shear bond strengths of brackets bonded to demineralized enamel surfaces with self-etch systems(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2016) Baka, Zeliha Muge; Akin, Mehmet; Ileri, Zehra; Basciftci, Faruk AyhanObjective: To compare the effects of different remineralization procedures on the surface roughness of teeth, shear bond strengths (SBSs), and Adhesive Remnant Index scores of sel-fetching primer (SEP) used to bond orthodontic brackets to previously treated demineralized enamel surfaces. Materials and Methods: A total of 140 extracted human premolar teeth were randomly divided into seven equal groups. Group I was the control group. A demineralization procedure was performed in the other six groups. A remineralization procedure was performed before bonding by using casein phosphopeptide-amorphous calcium phosphate, fluoride, a microabrasion mixture (18% hydrochloric acid-fine pumice), a microabrasion agent, and resin infiltration in groups III to VII. Brackets were bonded using a self-etching primer/ adhesive system. The specimens were tested for SBS. The roughness and morphology of the enamel surfaces were analyzed using profilometer and scanning electron microscopy. Data were analyzed with analysis of variance, Tukey, and G-tests at the alpha = .05 level. Results: Significant differences were found in the SBS values among the seven groups (F = 32.69, P = .003). The lowest SBS value was found in group II (2.62 +/- 1.46 MPa). No significant differences were found between groups I, III, and VII, between groups III and IV, or between groups V and VI. The differences in the roughness values were statistically significant among the groups (P = .002). Conclusions: Remineralization procedures restore the decreased SBS of orthodontic brackets and decrease surface roughness caused by enamel demineralization. SEPs provide clinically acceptable SBS values for bonding orthodontic brackets to previously treated demineralized enamel surfaces.Öğe Evaluation of antibacterial effects of contemporary orthodontic bonding materials(TAYLOR & FRANCIS LTD, 2017) Baka, Zeliha Muge; Eldeniz, Ayce Unverdi; Guneser, Mehmet Burak; Basciftci, Faruk AyhanAim: The aim of this study was to evaluate the antibacterial effects of five orthodontic bonding materials commonly used in orthodontics. Materials and Methods: The antibacterial effects of five orthodontic bonding materials were evaluated against Streptococcus mutans and Streptococcus salivarius by direct contact test (DCT). Using the DCT technique, quintet specimens of Transbond XT, Blugloo, Grengloo, Light Bond, and Opal Bond were applied to the bottom and the walls of the five wells of a 96-microtiter plate with a height of 2 mm. Samples were prepared in two sets: 1-day samples and 7-day samples. Ten microliters of bacterial suspension were added to each well for direct contact with each material for 1h at 37 degrees C. Bacterial growth was then measured in a microplate spectrophotometer hourly at 600 nm for 24h. Five uncoated wells with identical inoculum sizes served as positive controls. The data obtained at the end of 24h was statistically analyzed with one-way ANOVA, and post hoc comparisons were done using Tamhane's T2 test. Results: Blugloo generally showed better antibacterial activity than the other materials. Transbond XT did not show any antibacterial activity. There was a statistically significant difference between Transbond XT and Light Bond in the 1-day sample against S. mutans (p<0.05). No statistically significant differences were found among the other groups (p>0.05). Conclusion: Blugloo had the most potent antibacterial activity against S. salivarious.Öğe Maxillary and mandibular mesiodistal tooth sizes among different malocclusions in a sample of the Turkish population(OXFORD UNIV PRESS, 2011) Malkoc, Siddik; Basciftci, Faruk Ayhan; Nur, Metin; Catalbas, BulentThe purpose of this study was to establish normative data for mesiodistal tooth crown dimensions with respect to malocclusions and gender differences in Turkish sample. The subjects were randomly selected and assigned to three malocclusion groups according to Angle's classification. Each group consisted of 100 individuals between the ages of 13 and 18 years with the following distribution: Class I, 42 males and 58 females; Class II, 52 males and 48 females; and Class III, 51 males and 49 females. An electronic digital calliper was used to measure the mesiodistal tooth width from the right second permanent molar to the left second permanent molar on both upper and lower study casts. For statistical evaluation, one-and two-way analyses of variance and post hoc Tukey's honestly significant difference (HSD) tests were performed. There were statistically significant differences for the maxillary canine (P < 0.001), first premolar (P < 0.05), second molar (P < 0.05), and mandibular canine (P < 0.01) for males, and for all maxillary teeth and the mandibular central (P < 0.05), canine (P < 0.001), and first premolar (P < 0.05) teeth in females among the malocclusion groups. When Angle's classification was evaluated, significant differences were determined, except for the first and second mandibular molars. All mesiodistal widths were also found to be statistically different according to gender dimorphism. A significant relationship was found between mesiodistal tooth size, Angle's classification, and gender. Therefore, tooth dimensions may play a crucial role in treatment planning and in achieving satisfactory interdigitation of the upper and lower dentition following the completion of orthodontic treatment.Öğe New regression equations for mixed-dentition arch analysis in a Turkish sample with no Bolton tooth-size discrepancy(MOSBY-ELSEVIER, 2009) Uysal, Tancan; Basciftci, Faruk Ayhan; Goyenc, YasarIntroduction: Our objectives were to establish new regression equations derived from 228 Turkish patients (100 boys, 128 girls) with no intermaxillary tooth-size discrepancy that would give the greatest correlation coefficient for the sum of permanent tooth widths of the canines and the premolars of both jaws, according to sex, and to compare our new data with those from other studies. Methods: Mesiodistal tooth widths were measured from dental casts. Student t tests were carried out to compare tooth sizes between the sexes and the right and left sides of the arches. The constants a and b in the standard linear regression equation (y = a + bx), the correlation coefficients (r), the coefficients of determination (r(2)), and the standard errors of the estimates (SEE) were calculated. Results: Statistically significant differences were found between the widths of teeth between the sexes in both the maxillary (P < 0.01) and mandibular (P < 0.001) arches. The r value was 0.956 to 0.989, with the higher coefficients in the girls. The r(2) values were 91% in boys and 98% in girls, and the SEE was better in the maxilla and the mandible (0.013 mm) for the girls. The regression equations produced predictions of mesiodistal width summations for the maxillary and mandibular canine and premolar segments that were much different from other reported studies. Conclusions: New regression equations were derived for Turkish people. The prediction equations and probability tables should be revised by using subjects with no tooth-size discrepancy. (Am J Orthod Dentofacial Orthop 2009;135:343-8)Öğe Occlusal Contact Changes with Removable and Bonded Retainers in a 1-Year Retention Period(E H ANGLE EDUCATION RESEARCH FOUNDATION, INC, 2009) Sari, Zafer; Uysal, Tancan; Basciftci, Faruk Ayhan; Inan, OzgurObjective: To test the hypothesis that there is no difference in the number of occlusal contacts in centric occlusion in patients treated with bonded and removable retention procedures and a control group during a 1-year retention period. Materials and Methods: Twenty-five patients received a removable Hawley retainer, and 25 patients received maxillary and mandibular bonded retainers. The retainer patients were compared with 20 control subjects with normal occlusions. Silicone-based impression bites were used to record occlusal contacts. Paired-sample t-test, analysis of variance (ANOVA), and Tukey tests were used to evaluate intragroup and intergroup differences. Results: An increased number of occlusal contacts were recorded in total-arch and posterior combined (actual/near) teeth during the retention period as compared with the control group. In the Hawley group, actual and total contacts on the first and second molar and actual contacts on the premolar and canine showed statistically significant increases. In the bonded retainer group, near and total contacts on the first and second molars and premolars showed statistically significant increases. Slight occlusal changes were seen in the control sample during the observation period, presumably from growth and development. ANOVA comparisons of total contacts of anterior and posterior teeth indicated statistically significant differences in the three groups on posterior segments. Conclusions: The hypothesis is rejected. Both retention procedures allowed relative vertical movement of the posterior teeth, but the number of contacts on the posterior segment was increased more in the bonded retainer group than in the Hawley and control groups at the end of retention. (Angle Orthod. 2009;79:867-872.)Öğe Occlusal contacts with different retention procedures in 1-year follow-up period(MOSBY-ELSEVIER, 2007) Basciftci, Faruk Ayhan; Uysal, Tancan; Sari, Zafer; Inan, OzgurIntroduction: The aim of this follow-up study was to evaluate the number of contacts in centric occlusion during a 1-year retention period in patients treated with 2 retention procedures and in a control sample. Methods: Twenty patients received modified wraparound Hawley retainers, and 20 received maxillary Jensen plates with mandibular fixed retainers. These retention patients were compared with a control group of 20 subjects with normal occlusions. Silicone-based impression bites were used to record occlusal contacts. Paired and independent-sample t tests were used to evaluate intragroup and intergroup differences. Results: Contacts increased in the total arch and the posterior combined (actual/near) during the retention period compared with the control group. In the Hawley retainer group, actual contacts on the second molars (P < .05), near contacts on the premolars (P < .05), and total contacts on the first molars (P < .05) and premolars (P < .01) had statistically significant increases. In the maxillary Jensen plate and mandibular fixed lingual retainer group, the number of actual contacts on the posterior segment increased. Actual contacts on the first molars (P < .01), second molars (P < .01), premolars (P < .05), and canines (P < .05), and total contacts on the first (P < .05) and second (P < .05) molars had statistically significant increases. During the observation period, some slight occlusal changes were seen in the control sample, presumably from growth and development. At the end of the study, during the 1-year follow-up period, no statistically significant occlusal contact differences were observed in the 3 groups. Conclusions: Retention procedures carried out in this study allowed relative vertical movement of the posterior teeth.
