Comparison of mechanical properties and color stability of various vacuum-formed orthodontic retainers: An in vitro study.

Unlabelled: Vacuum-formed retainer (VFR) is the most used retainer due to its higher aesthetic properties and lower cost, their mechanical properties of are important in determining the stability and long-term use of appliances made out of them.

Aim: This study aimed to evaluate and compare the flexural modulus, surface hardness, and color stability of three different VFR materials.

Methods: Three different VFR materials, namely Duran, Keystone, and Zendura, of 1 mm thickness, were tested after thermoforming for flexural modulus, hardness, and color stability.

Students' Perceptions of their Dental Curriculum and Education.

Objective: To evaluate the satisfaction of dental students toward their dental curriculum and education at dental colleges in the central region of Saudi Arabia.

Methods: Two forms of the questionnaire were established, a paper version and an electronic internet-based survey (Google online form). Paper versions were distributed to interns graduated from universities in Riyadh.

Parents' Awareness of Early Orthodontic Consultation: A Cross-Sectional Study.

Objective: The aim of this paper is to assess parents' knowledge about early orthodontic consultation and treatment, and to determine the association of this knowledge with number of children, monthly income, children's age and perceived dental problems.

Methods: A questionnaire was distributed to 3000 school children aged 6-11 years. The children were asked to take the questionnaire to their parents and bring it back the next day.

Evaluation of the airway space changes after extraction of four second premolars and orthodontic space closure in adult female patients with bimaxillary protrusion - A retrospective study.

Background & Objectives: Previous studies have found that first premolar extractions during orthodontic treatment may alter the upper airway dimensions. The objective of this study is to investigate the effects of second premolar extraction during orthodontic treatment on the dimensions of the upper airway in a sample of female adults.

Methods: Twenty-nine female adult patients with ages between 18 and 30 years old and incisor bimaxillary protrusion were included in this study.

Changes in the mandibular dental arch during the late mixed dentition stage: Experimental study.

Objective: To determine the dimensional changes in the mandibular arch of untreated subjects during the late mixed dentition stage.

Methods: The cross-sectional study was conducted over three years starting March 2013 at the College of Dentistry, King Saud University, Riyadh, Saudi Arabia, and comprised consecutive models taken annually of subjects seeking dental treatment. They were aged 9 years at baseline and dimensional changes were calculated at 9, 10 and 11 years of age.

Dento-skeletal characteristics of cleft patients with missing teeth.

Objective: The objective of this study was to compare the cephalometric skeletal and dental characteristics of unilateral complete cleft lip and palate (UCCLP) subjects with and without missing teeth.

Design: A retrospective records review was conducted for patients who are being treated at the cleft lip and palate (CLP) clinics in the College of Dentistry.

Methods: Ninety-six consecutive records of non-syndromic UCCLP subjects were recruited (33 subjects without missing teeth, 50 subjects with only one missing tooth, and 13 subjects with two or more missing teeth).

The characteristics of dental occlusion in patients with moderate to severe obstructive sleep apnea in Saudi Arabia.

Objectives: To evaluate characteristics of dental occlusion among non-obese Saudi adult patients suffering from moderate to severe obstructive sleep apnea(OSA).

Methods: Following ethical approval, a cross-sectional study was conducted at Sleep Disorders Center, King Khalid University Hospital, Riyadh, Kingdom of Saudi Arabia, between January and March 2017. Non-obese adult Saudi patients with moderate/severe OSA (apnea-hypopnea index more than 15) and without history of malocclusion or edentulism were included with an estimated sample size of 50.

Elementary school staff knowledge about management of traumatic dental injuries.

Aim: This study investigated the knowledge of elementary school staff regarding the management of traumatic dental injuries (TDIs) in children.

Methods: The present cross-sectional study analyzed data collected between September 2016 and April 2017. The sample consisted of 2,027 elementary school staff members in Riyadh, Saudi Arabia.

Knowledge on management of traumatic dental injuries among Saudi mothers.

Objective: This study investigated the knowledge of Saudi mothers regarding the management of traumatic dental injuries (TDIs) in children.

Materials And Methods: A cross-sectional study using structured questionnaires was employed for mothers chosen by stratified-cluster random sampling technique from primary health care centers in Riyadh, Saudi Arabia, over a period of 12 months (July 2016-June 2017). The questionnaire surveyed mothers' background and knowledge on management of tooth fracture and avulsion using photographs of TDI cases.

Learning style preferences of dental students at a single institution in Riyadh, Saudi Arabia, evaluated using the VARK questionnaire.

Background: Students differ in their preferred methods of acquiring, processing, and recalling new information. The aim of this study was to investigate the learning style preferences of undergraduate dental students and examine the influence of gender, Grade Point Average (GPA), and academic year levels on these preferences.

Methods: The Arabic version of the visual, aural, read/write, and kinesthetic (VARK) questionnaire was administered to 491 students from the first- to the fifth-year academic classes at the College of Dentistry, King Saud University.

Retention practices and factors affecting retainer choice among orthodontists in Saudi Arabia.

Objectives: To identify the retention protocols practiced by orthodontists in Saudi Arabia, and the factors affecting retainer choice. 

Methods: This cross-sectional study took place between February and March of 2015 at the College of Dentistry, University of Dammam, Dammam, Saudi Arabia. A previously tested electronic survey of 34 items was sent to all 1,200 orthodontic members of the Saudi Orthodontic Society.

Validity of moyers mixed dentition analysis for Saudi population.

Objectives: To evaluate the applicability of Moyers probability tables and to formulate more accurate mixed dentition prediction tables in the Saudi population.

Methods: A cross-sectional study was conducted at the College of Dentistry, Kind Saud University, Saudi Arabia. The data were collected from 410 (203 males and 207 females) orthodontic study models, which had erupted mandibular permanent incisors, maxillary, mandibular canines and premolars.

Evaluation of the fit of preformed nickel titanium arch wires on normal occlusion dental arches.

Aim: To determine the fits of preformed nickel titanium (NiTi) archwires on dental arches with normal occlusion.

Methods: Forty sets of upper and lower plaster models were obtained from men and women with Class I occlusions. Preformed 0.

Live demonstration versus procedural video: a comparison of two methods for teaching an orthodontic laboratory procedure.

Background: To measure the effectiveness of procedural video compared to live demonstration in transferring skills for fabricating orthodontic Adam's Clasp.

Materials And Methods: Forty-nine fourth-year undergraduate male dental students were randomly assigned to two groups. The students in group A (n = 26) attended a live demonstration performed by one faculty, while students in group B (n = 23) watched a procedural video.

Influence of bimaxillary protrusion on the perception of smile esthetics.

Objectives: To evaluate the impact of bimaxillary protrusion on smile esthetics as perceived by dental professionals and laypersons.

Methods: One hundred and fifty evaluators, equally distributed into their respective panels (orthodontists, general dentists, and laypersons), participated in this cross-sectional study conducted in April to December 2012 in Riyadh, Saudi Arabia. The patient sample consisted of 14 female patients divided equally into 2 groups: bimaxillary protrusion patients, and patients who have had 4-premolar extraction treatment.

Is Tanaka-Johnston mixed dentition analysis an applicable method for a Saudi population?

Objectives: To test the applicability of the Tanaka and Johnston prediction method in a Saudi population.

Methods: The current study was conducted at the College of Dentistry, King Saud University, Riyadh, Saudi Arabia from September 2013 to January 2014, on a sample of 409 pairs of orthodontic study models. The mesiodistal width of the mandibular permanent incisors, permanent canines, and permanent premolars were measured using an electronic digital caliper with an accuracy of 0.

Perception of pain and discomfort from elastomeric separators in Saudi adolescents.

Objective: To examine the patient's perception of pain and discomfort following the placement of elastomeric separators in Saudi adolescents.

Methods: The study was conducted on 38 adolescent patients who received fixed orthodontic treatment. The data was collected through the use of a self-administrated questionnaire that was distributed to the patients by one investigator in a non-clinical setting.

Career characteristics and postgraduate education of female dentist graduates of the College of Dentistry at King Saud University, Saudi Arabia.

Objectives: The aims of this study were to investigate the number of female bachelor of dental surgery graduates who earned postgraduate education degrees from King Saud University, their specialties, degrees of qualification, and countries of graduation.

Methods: A questionnaire survey was conducted through face-to-face or phone interview among 677 female dentists who graduated from the College of Dentistry at King Saud University between 1984 and 2006.

Results: Five hundred forty-five (81%) graduate female dentists responded, of whom 54% had completed postgraduate dental education.

Soft tissue facial profile of adult Saudis. Lateral cephalometric analysis.

Objective: To develop cephalometric measurements of soft tissue facial profile for a sample of adult Saudi males and females and compare it with European-Americans` norms for any significant differences.

Methods: Sixty-one lateral cephalometric radiographs (31 males and 30 females; mean age 23 years) were selected from the archives of cephalometric radiograph files at College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia between June 2009 and June 2010. Thirteen cephalometric parameters were analyzed electronically using the Dolphin version 10 software according to Legan and Burstone analysis.

Orthognathic surgical norms for a sample of Saudi adults: Hard tissue measurements.

Objective: The aim of the study is to establish hard tissue cephalometric norms for orthognathic surgery for a sample of Saudi adults.

Materials And Methods: Sixty-two lateral cephalometric radiographs for 31 females and 31 males, age range of 22-24 years, were analysed. The mean values of the hard and dental measurements were compared with those of European-American adults using Burstone analysis, as well as comparison between Saudi males and females.

Appointments failure among female patients at a dental school clinic in Saudi Arabia.

The aim of the study was to assess the factors and reasons responsible for failed appointments among female patients attending a dental school clinic. A cross-sectional survey was conducted at the College of Dentistry in Riyadh city on 200 patients who failed to keep their appointments at least one time. The data were collected using a structured, pretested questionnaire through a telephone interview method from January through May 2007.

Cephalometric soft tissue profile analysis between two different ethnic groups: a comparative study.

The aim of this investigation was to study and compare the cephalometric soft tissue profile analysis between Saudis and Caucasian Americans. The study was carried out using standardized cephalometric radiographs of 56 Saudi subjects (30 males and 26 females) with pleasant and balanced facial profiles, competent lips, normal overjet and overbite, and showing no craniofacial deformities. Subject ages ranged from 22 to 23 years.

Growth status of Saudi patients with cleft lip and palate.

Objective: The purpose of this study was to determine if the type of cleft had any influence on the growth achievement of the affected patients.

Methods: The height, weight and head circumference of 63 cleft patients attending the Orthodontic clinic at the College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia between the year 2000-2001, were compared with each other according to the type of cleft present. In addition, a comparison was made between the height and weight of cleft subjects with that of the normal population.