Assessment of nasal respiration and three-dimensional airway volume changes in orthognathic surgery patients.

Objectives: The aim of this study was to evaluate the effect of maxillary movements in orthognathic surgery on nasal airway volume change and its correlation with airflow and resistance.

Materials And Methods: This study included 25 patients (8 male, 17 female) with Class II (6 patients) or Class III (19 patients) malocclusion. All patients underwent Le Fort I and bilateral sagittal split ramus osteotomy.

Analysis of Gull in Flight Appearance and Related Parameters Following Le Fort I Osteotomy.

The present study aimed to investigate how "Gull in Flight" appearance and alar-columellar relationship change following maxillary surgery. Thirty-three patients who underwent Le Fort I osteotomy with or without mandibular osteotomy were included in this retrospective study. Measurements which were angle of columella triangle, alar-rim angle, columella lobular angle, and distance of points forming "Gull in Flight" appearance were evaluated on pre and postoperative frontal and lateral photos of patients.

Comparison of scleral show alterations following Le Fort I osteotomy with either maxillary impaction or lengthening.

This study aimed at evaluating changes in scleral show following Le Fort I osteotomy with either impaction or lengthening of the mid face. Patients who underwent Le Fort I osteotomy were included. The patients were divided according to the direction of the movement: group 1 underwent maxillary advancement and impaction, while group 2 underwent maxillary advancement and lengthening.

Evaluation of Dental Age in Individuals of Different Ages with Unilateral Cleft Lip and Palate.

Objective: This study aimed to evaluate the dental age of unilateral cleft lip and palate (UCLP) patients aged 7-12 and 12-16 years using Demirjian's method and to compare these results with a control group.

Methods: We evaluated the panoramic radiographs of 54 individuals with UCLP and 54 age- and gender-matched individuals without UCLP (control). The UCLP and control groups were divided into two groups: 7-12 and 12-16 years of age.

Changes of Stress Distributions Around Pterygomaxillary Junction With Different Osteotome Angulations.

The aim of this study was to investigate how the alteration of the angulation of osteotome at pterygomaxillary junction affects lateral pterygoid plate, maxillary tuberosity, palatal surface of maxilla, palatine bone and body of sphenoid bone. Following reconstruction of 3D modelling of maxilla, Osteotomes' tip was angulated 45 and 90 to sagittal plane to simulate pterygomaxillary osteotomy. Finite element analyses (FEA) was performed and Von Misses stress distributions were analyzed for two different angulations.

Effect of Fluoride Releasing Bonding Materials on Shear Bond Strength of Orthodontic Brackets.

Objective: The aim of the present study was to compare the shear bond strength (SBS) of three different fluoride-releasing bonding agents with a conventional adhesive system.

Methods: Eighty-four extracted human premolar teeth were separated into four groups and embedded in acrylic molds consisting of 21 teeth in each group. Brackets were bonded with Transbond XT in group 1, Clearfil SE Protect Bond in group 2, LED Proseal in group 3, and Opalseal in group 4.

Relationship between the prevalence of soft tissue radiopacities on panoramic radiographs and medical conditions.

Background: This study aimed to describe radiographic characteristics and the prevalence of selected anatomical structures and soft tissue radiopacities on panoramic radiographs and their relationship to medical conditions.

Methods: A retrospective cross-sectional study was conducted with 814 consecutive patients aged 35-88 years and their panoramic radiographs. Soft tissue calcifications found in the mandibular angle area were recorded according to gender, age, and bilaterally.

Assessment of Reliability of YouTube Videos on Orthodontics.

Objective: In addition to being an entertainment channel, YouTube is also one of the most popular visual information sources today. People search YouTube to consult also on orthodontics, as well as on many other topics. The objective of the present study was to analyze the quality and reliability of information of the videos on YouTube about orthodontics.

Comparison of the Effects of Various Methods Used to Remove Adhesive from Tooth Surfaces on Surface Roughness and Temperature Changes in the Pulp Chamber.

Objective: The purpose of the present study was to compare the effects of three methods of removing adhesive on enamel surface roughness and dental pulp temperature.

Methods: Ninety human maxillary premolars were randomly divided into three groups (n=30) according to the type of adhesive clean-up procedure: aluminum oxide-based burs, erbium-doped yttrium aluminum garnet (Er:YAG) laser, and tungsten carbide bur. The surface roughness of enamel was measured using a non-contact optical profilometer.

Impact of Orthodontic Treatment Complexity on Oral Health-Related Quality of Life in Turkish Patients: A Prospective Clinical Study.

Objective: The study aimed to evaluate the relationship between orthodontic treatment complexity and oral health-related quality of life (OHRQoL) and to assess the impact of malocclusion and orthodontic treatment on OHRQoL in orthodontic patients with regard to gender and age.

Methods: This prospective clinical study included 102 patients aged 13-35 years who were referred to the orthodontic department. The impact of orthodontic treatment complexity was assessed using the Index of Complexity, Outcome and Need (ICON).

Comparative determination of skeletal maturity by hand-wrist radiograph, cephalometric radiograph and cone beam computed tomography.

Objectives: The purpose of this study is to assess the stages of skeletal maturity in cone beam computed tomography (CBCT), hand-wrist radiography (HWR) and cephalometric radiography (CR) techniques of orthodontic patients, and associate skeletal maturity stages with chronological age, in a Turkish subpopulation.

Methods: Hand-wrist radiographs, cephalometric radiographs and CBCT of 105 patients were evaluated. For evaluation of HWR, the "Hand Bone Age A Digital Atlas of Skeletal Maturity" of Vicente Gilsanz and Osman Ratib (2005) was used.

Comparative Evaluation of Conventional and OnyxCeph™ Dental Software Measurements on Cephalometric Radiography.

Objective: Cephalometry can be measured with traditionally conventional analysing methods (hand tracing), as well as using computers. Many dental softwares have been developed for this purpose. The reliability of these programs are often compared with the conventional method.

Evaluation of Orthodontic Patients at State and Foundation Universities According to the ICON Index.

Objective: In Turkey, orthodontic treatments of individuals aged <18 years are covered by the Social Security Institution (SSI) according to the Index of Complexity, Outcome, and Need (ICON) index at contracted healthcare providers. The aim of this study was to determine treatment needs and difficulties of patients applying to orthodontic clinics in state and foundation universities in Istanbul according to the ICON and to evaluate the extent of treatment coverage by the SSI.

Methods: Pre-treatment study casts of 831 patients were evaluated in terms of treatment needs and difficulties according to the ICON.

Comparison of alveolar ridge splitting and autogenous onlay bone grafting to enable implant placement in patients with atrophic jaw bones.

To compare alveolar ridge splitting (ARS) and autogenous onlay bone grafting (AOBG) in atrophic jaw bones.  Methods: Forty patients were included in this retrospective, parallel-group study conducted at the Istanbul Medipol University School of Dentistry, Istanbul, Turkey, between 2012-2015. The initial bone thickness was measured by cone beam computed tomography (CBCT).

Conservative surgical treatment of the jaw cysts in children: Case study of five patients.

Aims: Conservative treatment of jaw cysts establishes low surgical complication risk and protects vital anatomical structures such as inferior alveolar nerve, maxillary sinus and permanent tooth germs. Marsupialization and decompression have been widely used in children. The aim of this study was to evaluate the results of the conservative treatment of jaw cysts in five children.

Effect of V-Y plasty on lip lengthening and treatment of gummy smile.

The aim of this study was to assess the effect of isolated V-Y plasty on lip lengthening and the treatment of gummy smile. An isolated V-Y plasty was performed on 14 patients with a gummy smile. In each case, measurements of upper lip length and gingival display were recorded from posed-smile photographs taken preoperatively and at 1, 3, and 6 months postoperatively.

Evaluation of the morphology of the canalis sinuosus using cone-beam computed tomography in patients with maxillary impacted canines.

Purpose: The nasopalatine canal is a well-known, important anatomical structure in the anterior maxilla, but this region contains many accessory canals. The canalis sinuosus (CS) is one of these canals; it contains the anterior superior alveolar nerve, along with veins and arteries. The purpose of this study was to evaluate the CS using conebeam computed tomography (CBCT) in patients with maxillary impacted canines.

Various Contemporary Intraoral Anchorage Mechanics Supported with Temporary Anchorage Devices.

The aim of this review was to provide an overview of the various types of contemporary intaroral anchorage mechanics that are being used with temporary anchorage devices (TADs) and to briefly mention the design and clinical use of these appliances. Original articles on "mini-implants in orthodontics, temporary anchorage devices, orthodontic miniscrews, mini-implants, and skeletal anchorage" were searched for on the PubMed database. Articles published between 2004 and May 2015 were used.

Effects of leukocyte-platelet rich fibrin on postoperative complications of direct sinus lifting.

Background: Blood products have been widely used in soft tissue and bone regeneration in oral and maxillofacial surgery. The purpose of this study is to evaluate the effects of leukocyte-platelet rich fibrin (L-PRF) following direct sinus lifting procedure.

Methods: Twenty-eight patients were included in the study.

The Effect of Finishing and Polishing Techniques on the Surface Roughness and the Color of Nanocomposite Resin Restorative Materials.

Background: Rough, poorly polished surfaces contribute to staining, plaque accumulation, gingival irritation and recurrent caries. Finishing and polishing techniques are critical factors contributing to the longevity of the direct composite resin restorations.

Objectives: The aim of this in vitro study was to evaluate the effects of finishing and polishing systems on surface roughness of six nanocomposite restorative resins.

Evaluation of articular eminence pneumatization using cone beam computed tomography.

Aim: Knowledge about the anatomy of the temporomandibular joint (TMJ) and its surrounding structures is mandatory for success in surgical interventions and for understanding the pathway of spread of infections in this region. This study aims to investigate the anatomy and morphology of pneumatized articular eminence (PAT) using cone beam computed tomography (CBCT) imaging in a group of patients.

Methods: A retrospective study on 825 patients (377 males, 448 females) aged between 18 and 91 years was performed using sagittal and coronal CBCT images.

Comparison of piezosurgery and conventional rotative instruments in direct sinus lifting.

Objectives: The purpose of this study was to compare the intraoperative and postoperative effects of Piezosurgery and conventional rotative instruments in direct sinus lifting procedure.

Patients And Methods: Twenty-three patients requiring direct sinus lifting were enrolled. The osteotomy and sinus membrane elevation were performed either with Piezosurgery tips or rotative diamond burs and manual membrane elevators.