Ahmet Yalcin Gungor

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Acoustic rhinometry (AR) evaluates the geometry of the nasal cavity with acoustic reflections and provides information about nasal cross-sectional areas (CSA) and nasal volume within a given distance. The accuracy of the information obtained by AR was compared with that of magnetic resonance imaging (MRI) of the nasal cavity. Five healthy subjects were(More)
A disassembly process plan (DPP) is a sequence of disas-sembly tasks which begins with a product to be disassembled and terminates in a state where all the parts of interest are disconnected. Disassembly process planning is critical for minimizing the resources invested in disas-sembly and maximizing the level of automation of the disassembly process and(More)
OBJECTIVE To evaluate effectiveness of 5 mW laser irradiation in the treatment of chronic tinnitus. STUDY DESIGN Prospective, randomised, double-blind study. METHODS This investigation included 66 ears in 45 patients with chronic unilateral or bilateral tinnitus. A 5 mW laser with a wavelength of 650 nm, or placebo laser, was applied transmeatally for(More)
The volume of air passing through the nose and nasopharinx is limited by its shape and diameter. Continuous airflow through the nasal passage during breathing induces a constant stimulus for the lateral growth of maxilla and for lowering of the palatal vault. Maxillary morphological differences exist between patients with airway problems and control groups,(More)
Acoustic rhinometry is an appropriate method for detecting and recording the nasal cycle in normal subjects in terms of the cross-sectional areas and volume of the nasal cavity. In this study, we tried to detect and to define the nasal cycle in normal subjects so that we might develop a reliable and reproducible technique to be used in conjunction with(More)
OBJECTIVES To evaluate the effects fluorosis and self etching primers (SEP) on shear bond strengths (SBS) of orthodontic brackets. METHODS A total of 48 (24 fluorosed and 24 non-fluorosed) non-carious freshly extracted human permanent premolar teeth were used in this study. Fluorosed teeth were selected according to the modified Thylstrup and Fejerskov(More)
OBJECTIVE This study aimed to compare the cephalometric characteristics of obstructive sleep apnea (OSA) patients with those of healthy subjects and to determine possible relationships between cephalometric measurements of OSA patients and control subjects. METHODS Standardized lateral cephalograms of 16 OSA patients and 16 healthy controls were obtained.(More)
OBJECTIVE The aim of this study was to evaluate the applicability of Greulich and Pyle (GP) method for Southern Turkish population. MATERIALS AND METHODS Hand and wrist radiographs of 535 patients (276 females, 259 males aged from 10 to 18 years) selected retrospectively from the archive. Skeletal age (SA) estimation was performed according to GP atlas.(More)
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