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.

Estimation and comparative evaluation of tip and torque values of Saudis for bracket prescription.

Objectives: The present study aimed at determining the tip and torque values of the teeth of Saudi adults with normal occlusion to develop orthodontic bracket prescription. In addition, we proposed to compare the results with published data of varied geographical distribution.

Materials And Methods: The study sample consisted of 60 upper and lower study models of Saudi adults (30 males and 30 females) with normal occlusion and a balanced facial profile.

Estimation and comparative evaluation of teeth prominence values of Saudis for bracket prescription.

Background: The racial and ethnic disparities in tooth morphology and alignment indicate the need for different orthodontic prescriptions.

Purpose: This study aimed at utilizing the 3D digital models to measure the teeth prominence of Saudi adults and compare the results to previously published data.

Materials And Methods: The sample included 60 sets of 3D digital dental models of subjects who presented with non-orthodontic normal occlusion and balanced profile.

Using bonding agent prior to pits and fissure sealant application enhances the microtensile bond strength and the interface morphology.

Background: A pits and fissures sealant is an effective method for preventing dental caries. Using a bonding agent before applying the sealant may increase its retention. This study aimed to compare the microtensile strength (µTBS) of a fissure sealant with and without a bonding agent and to characterize the enamel-sealant interface using confocal laser scanning microscopy (CLSM).

Assessment of Occupational Stress Among Oral and Maxillofacial Surgeons and Residents in Saudi Arabia: A Cross-Sectional Study.

Purpose: Considering the important role of oral and maxillofacial surgeons in healthcare services and the stressful nature of their job, this study aimed to assess the occupational stress among oral and maxillofacial surgeons and residents in Saudi Arabia.

Materials And Methods: Cross-sectional questionnaires were developed, and they included the perceived stress scale and questions about potential sources of stress. A sample size of 180 was determined using a 0.

Occupational Stress among Orthodontists in Saudi Arabia.

Aim: The aim of this study was to identify potential occupational stressors among orthodontists practicing in Saudi Arabia, and to evaluate their relationship to personal and professional characteristics.

Materials And Methods: Using a validated occupational stress assessment (OSA) questionnaire, demographic information and data pertaining to potential occupational stressors and professional characteristics of the participants were collected. The OSA questionnaire was adopted and modified based on Cooper classification of potential stressors.

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.

Comparison of two analgesics used for pain relief after placement of orthodontic separators.

Objective: The purpose of this study was to assess the possible effect of two analgesics: paracetamol (500 mg) and ibuprofen (400 mg) on pain and routine life of the patients after placement of orthodontic separators.

Methodology: Ninety patients aged 11-41 years undergoing fixed comprehensive orthodontic treatment requiring placement of different orthodontic separators participated in the study. Following placement of separators, the participants were randomly assigned to 1 of 3 groups: paracetamol (500 mg) given every 6 h for 3 days, ibuprofen (400 mg) given every 8 h for 2 days and control group in which no analgesic was given.

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.

An assessment of job satisfaction: A cross-sectional study among orthodontists of Saudi Arabia.

Aim Of The Study: The main objective of the present study was to investigate the level of job satisfaction among professional orthodontists in relation to some significant intrinsic and extrinsic factors that generally affect their performance.

Materials And Methods: A cross-sectional study was conducted among orthodontists working in the Kingdom of Saudi Arabia using an online survey questionnaire through Survey Monkey. A total of 161 responses were received; among those, 57.

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.

Learning preferences among dental students using the VARK questionnaire: A comparison between different academic levels and gender.

Objective: To examine the learning style preferences of undergraduate dental students and determine the influence of gender on their selection.

Methods: This descriptive, cross-sectional study was conducted at the College of Dentistry, King Saud University, in Riyadh, Saudi Arabia, from September 2016 to January 2017.The Arabic version of visual, audio, read/write, and kinaesthetic questionnaire was administered to students from the first to the fifth academic year.

Cephalometric Soft Tissue Characteristics of Unilateral Cleft Lip and Palate Patients in Relation to Missing Teeth.

Objective: This study aimed to evaluate cephalometric soft tissue characteristics in individuals with unilateral complete cleft lip and palate (UCCLP) both with and without missing teeth.

Design: A retrospective investigation of patient records, who are being treated at the cleft lip and palate (CLP) clinics at the College of Dentistry. Ninety-six consecutive records of nonsyndromic UCCLP subjects were recruited (33 subjects without missing teeth and 63 subjects with missing teeth).

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.

Computational fluid dynamics analysis of the upper airway after rapid maxillary expansion: a case report.

Background: Assessment of the upper airway volume, morphology, and mechanics is of great importance for the orthodontic patient. We hypothesize that upper airway dimensions have significant effects on the dynamics of the airway flow and that both the dimensions and mechanics of the upper airway are greatly affected by orthodontic and orthopedic procedures such as rapid maxillary expansion (RME). The aim of the current study was to assess the effect of RME on the airway flow rate and pattern by comparing the fluid dynamics results of pre- and post-treatment finite element models.

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.