Enver Yetkiner

Ege University · Department of Orthodontics

Objective: The aim of this prospective study was to evaluate the re-colonisation pattern of Streptococcus mutans (MS) in high-level MS-colonised patients with fixed orthodontic appliances following 40% chlorhexidine varnish application prior to bracket placement. Materials and methods: The subjects of this single-blinded clinical trial were 13-14-y...

Background One of the most unfavorable side effects of fixed orthodontic treatment is white spot lesions (WSLs). Although the most important approach is prevention of WSLs, it is also essential to evaluate the efficacy of the remineralization agents. However, there is no concurrence in the literature with respect to the remineralization process of...

Objective: The aim of this in vivo study was to evaluate the efficacy of low-viscosity light-cured resin infiltration on postorthodontic white spot lesions (WSLs) on incipient and advanced lesions using quantitative light-induced fluorescence (QLF). Methods: The study subjects were patients with clinically diagnosed postorthodontic WSLs (n=57)....

The upper airway is one of the essentials for healthy respiration. Anatomically, it can be evaluated in three sections; nasopharynx, oropharynx and laryngopharynx. These structures are affected by several factors such as growth and development, gender variability and body-mass index. In this chapter; normal dimensions of the upper airway, methods f...

Background Lateral Cephalometric Radiographs (LCR) are a common decision-making aid in orthodontic treatment planning and are routinely used in clinical practice. The aim of this present study was to test the null hypothesis that LCR evaluation does not alter specific components of orthodontic treatment planning in Class II patients. Materials and...

Purpose To compare the volumetric changes in successfully treated clefts with secondary alveolar grafting using recombinant human bone morphogenic protein-2 delivered in ß-tricalcium phosphate scaffold versus autogenous grafts obtained from the iliac crest and the mandibular symphysis. Materials and Methods A retrospective cohort study comprising...

Objective: To evaluate patients' and parents' perception of removable, fixed rigid, and fixed hybrid functional appliances and to compare their impacts on anxiety and discomfort during treatment in different age groups and genders. Methods: Data were gathered by means of a questionnaire that included items presumed to be associated with orthodon...

Objective: To investigate the influence of diagnostic data derived from lateral cephalometric radiographs (LCR) on treatment preferences of specialists planning skeletal open-bite treatment. Methods: Diagnostic records of 25 patients who had been treated at the University of Zurich, Department of Orthodontics, between 1988 and 2007 comprised the...

The advent of three-dimensional (3D) imaging technology has caused a significant change in the diagnostic approach practiced in dentistry, and in particular, orthodontics. Although conventional imaging methods such as orthopantomography and lateral cephalometric and anteroposterior graphs provide sufficient information in mild to moderate orthodont...

Objective: To compare the facial anteroposterior projection parameters of unilateral complete cleft lip and palate (UCCLP) patients with non-cleft (NC) individuals having well-balanced faces using Arnett and Gunson Module and determine the capability of modified true vertical line (mTVL) to depict the true extent of retrognathism in UCCLP patients...

This study investigated the effect of particle types with different morphology and surface properties on the wettability and adhesion of resin cement to zirconia. Zirconia specimens (5 × 5 × 1 mm3) were wet polished. Specimens were randomly assigned to one of the following protocols (N = 36, n = 9 per group): Group CON: Control, no surface conditio...

Objective: To assess the range of social smile reproducibility using 3-D stereophotogrammetry and reverse engineering technology. Materials and methods: Social smile images of white adolescents (N = 15, mean age = 15.4 ±1.5 years; range = 14-17 years) were obtained using 3dMDFlex (3dMD, Atlanta, Ga). Each participant was asked to produce 16 soci...

INTRODUCTION: Impacted third molars increase the risk of cystic follicular tissue changes. The presence of impacted third molars and bone defects caused by cysts increase the risk of mandibular angle fractures during surgical procedures. The aim of this case presentation was to describe an alternative method for the extraction of an impacted third...

Objective: To test the stability of two conventional adhesives when combined with a low-viscosity caries infiltrant used for sealing sound enamel against toothbrush abrasion and acid challenge in vitro. Materials and methods: Bovine enamel discs (Ø = 3 mm) randomly assigned to three groups (n = 10/group) were etched with 37% phosphoric acid for...

Summary background/objectives: White spot lesions (WSLs) are unwelcome side effects of fixed appliances that compromise the treatment outcome. Recently, infiltration of WSLs has been introduced as a viable treatment alternative. The objective was to evaluate the colour improvement of WSLs and their stability against discolouration following infilt...

Radiographic examination is considered 'justified' only when detection of a condition that would change the mechanisms and timing of treatment is possible. Radiographic safety guidelines have restricted the indication of lateral cephalometric radiographs (LCRs) to presence of distinct skeletal Class II or Class III. However, they are taken routinel...

Objective:The aims of this study were (1) to determine orthodontic treatment need, self-esteem, and oral health-related quality of life (OHRQoL) of primary schoolchildren and (2) to investigate possible influences of orthodontic treatment need on self-esteem and OHRQoL.Methods:The subjects of this cross-sectional study were 219 children aged 13–14...

To analyze the fatigue resistance, debonding force, and failure type of fiber-reinforced composite, polyethylene ribbon-reinforced, and braided stainless steel wire lingual retainers in vitro. Roots of human mandibular central incisors were covered with silicone, mimicking the periodontal ligament, and embedded in polymethylmethacrylate. The specim...

The aim of this prospective study was to evaluate the re-colonisation pattern of Streptococcus mutans (MS) in highlevel MS-colonised patients with fixed orthodontic appliances following 40% chlorhexidine varnish application prior to bracket placement. The subjects of this single-blinded clinical trial were 13-14year-old adolescents (N = 14) with si...

Purpose: This study investigated the effect of a low-viscosity adhesive resin (Icon) applied after either hydrochloric (HCl) or phosphoric acid (H3PO4) on the adhesion of metal brackets to enamel. Failure types were analyzed. Materials and methods: The crowns of bovine incisors (N = 20) were sectioned mesio-distally and inciso-gingivally, then r...

Objective: To assess the chemical and mechanical wear resistance of two conventional adhesives combined with a low-viscosity caries infiltrant used as surface sealants on sound enamel in vitro. Method: Bovine enamel discs (n=30) with a diameter of 3 mm were randomly assigned to 3 groups (n=10). They were etched with 37% phosphoric acid for 30 s a...

Objective: This study compared the effect of deposition of different particles on the surface wettability and adhesion of resin cement to zirconia after aging. Methods: Zirconia specimens (Emax ZirCAD, Ivoclar) were obtained (5x5x1mm3) (N=60, n=15 per group). Their surfaces were ground finished to 1200-grit silicone carbide paper. After ultrasoni...

OBJECTIVE: To test the null hypothesis that combining low-viscosity caries infiltrant with conventional adhesive resins would not improve sealing of sound enamel against demineralization in vitro. MATERIALS AND METHODS: Bovine enamel discs (N = 60) with diameter of 3 mm were randomly assigned to six groups (n = 10). The discs were etched with 37% p...

OBJECTIVE: To investigate the effect of chlorhexidine applications in various forms and concentrations on adhesion and failure modes of metal brackets in vitro. MATERIAL AND METHODS: Ninety bovine enamel specimens were allocated to six groups (n=15). Metal brackets were bonded on all specimens after chlorhexidine pre-treatments forming the followin...

Objectives: To investigate the effect of low-viscosity adhesive resins applied after hydrochloric or phosphoric acid application on the enamel adhesion of metal brackets. Methods: Eighty bovine incisors were embedded in polyethylene cylinders and assigned to 4 groups (N=20). Mandibular incisor brackets were bonded to enamel surfaces under 500 g l...

TMJ movements are influenced by many anatomic and physiologic factors. Articular eminence is an important anatomic structure affecting the condyle movements. The purpose of the study is to evaluate the effect of articular eminence morphology on TMJ movements using computerized axiography (Denar® Cadiax Compact). The study material consisted of axio...

Supernumerary teeth are relatively common in the oral cavity and are characterized by an excessive number of teeth. The term "mesiodens" refers to a supernumerary tooth located in the midline of the maxilla between the central incisors. Mesiodens may cause a variety of pathological complications such as impaction of the maxillary central incisors,...

Localized infection in the primary teeth was reported as an etiological factor in the formation of a hypoplastic defect in the underlying permanent teeth. The purpose of this report is to present the case of a 10-year-old girl with an unusual local hypoplasia in the mandibular left permanent canine and emphasize the importance of multidisciplinary...

In case of growth hormone deficiency, periodontal problems may accompany due to the abnormal formation of teeth making plaque accumulation easier. The purpose of this report is to describe dental management of a 14-year old female patient with isolated growth hormone deficiency. She was referred to the Department of Periodontology for treatment of...