Publications by authors named "Amal I Linjawi"
Objectives: Approaches for combining scores have been based on weighted mean (WM) without consideration for psychometric characteristics of each individual assessments. This study evaluates consequences of WM and composite score (CS) approach.
Methods: Data from two longitudinal cohorts (n = 219) were utilized for performance in three Operative Dentistry courses as basis to compare the two score-combining methods.
Background: This study investigated the effect of using different agents for protecting enamel proximal surfaces against acidic attack after interproximal reduction (IPR) using the trans micro radiography technique.
Methods: Seventy-five sound-proximal surfaces were obtained from extracted premolars for orthodontic reasons. All teeth were measured miso-distally and mounted before being stripped.
Background: We aim to evaluate the effect of surface conditioning, bonding agents and composite types on surface roughness (SR) and shear bond strength (SBS) of clear aligner composite attachments bonded to ceramics. Methods: One hundred and eighty IPS e.max CAD specimens were prepared.
View Article and Find Full Text PDFObjectives: To analyze adaptational changes in clear aligner fit after intraoral usage at different sets of time.
Materials And Methods: Eight Invisalign appliances (Align Technology, San Jose, California, USA) were collected after intraoral usage. Acrylic imprints of the lower incisor region were constructed for each appliance at T0 (unused appliance).
E-learning Readiness among Dental Students and Faculty Members Pre-COVID-19 Pandemic.
J Microsc Ultrastruct
November 2020
Purpose: The purpose was to assess students' and faculty readiness toward online dental education in Saudi Arabia.
Materials And Methods: This is a cross-sectional study using a 5-point Likert scale questionnaire distributed to students (undergraduates and postgraduates) and faculty at King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia, in 2018. It assessed individual characteristics, system competency needs, social influence, institutional support, overall readiness, and the needed technical support in using e-learning for personal as well as teaching and learning (T&L) purposes.
Background: The aim of this cross-sectional study was to compare the dimensions of mandibular symphysis (MS) between gender and the different sagittal and vertical skeletal relationships.
Material And Methods: Pre-treatment records of orthodontic patients were divided according to gender, sagittal (Class I, II and III) and vertical (decreased, average and increased mandibular plane [MP] angle) skeletal relationships. Measurements of MS parameters were performed on lateral cephalograms using IMAGEJ software.
Background/purpose: Increasing the bond strength between the orthodontic brackets and all-ceramic materials is one of the challenges facing orthodontists. The purpose of this study is to assess the shear bond strength (SBS) of metal brackets to two types of all ceramic materials using various surface mechanical and chemical conditioning methods.
Materials And Methods: Sixty ceramic blocks were prepared using two types of all ceramic materials (IPS e.
Effect of Extract (Miswak) on the Dentinal Tubules of Sound Root Dentin: Scanning Electron Microscope Study.
J Microsc Ultrastruct
November 2020
Background/purpose: Root dentin is vulnerable to a higher risk of demineralization than coronal enamel. This study aimed to evaluate the effect of miswak extract on the dentinal tubules of sound root dentin.
Materials And Methods: Twenty bovine root dentin blocks, approximately 2 mm × 3 mm × 3 mm (width × length × depth) in dimensions, were prepared from freshly extracted sound bovine incisors.
To evaluate the preference of young adult patients and their willingness to pay for the different approaches accessible to accelerate orthodontic tooth movement. A cross-sectional survey was conducted in Jeddah, Saudi Arabia from September to December 2019. Young adult orthodontic patients from 18 to 45 years old were interviewed via online survey regarding their perception to the extent of treatment, acceptability of non-invasive (customized appliances and medications) and invasive (surgery) approaches accessible to accelerate orthodontic treatment and increase in fees they were willing to pay.
View Article and Find Full Text PDFAim: This literature review aims to update the evidence for prevention of white spot lesion (WSL) using orthodontic sealants among patients with fixed orthodontic appliances.
Background: As a major issue among orthodontists, prolonged treatment duration increases the risk of plaque development around orthodontic brackets and bands. In consequence, this can lead to heightened risk for caries development and higher possibility of WSL development around fixed orthodontic brackets.
Aim: To compare the angulation of maxillary left (UL) and right (UR) incisors and the width of alveolar bone.
Materials And Methods: This study was conducted using archived cone-beam computed tomography (CBCT) images of 50 male and 50 female patients. The UL and UR incisors were compared in terms of incisor/palatal plane angle, collum angle, labiopalatal crown-root position, and alveolar bone width (ABW).
Objective: To assess the prevalence of malocclusion and orthodontic treatment needs in a Saudi sample of Jeddah city.
Materials And Methods: A cross-sectional (descriptive) study was performed in 2017 among 3016 subjects (1507 females and 1509 males) selected according to stratified random sampling design. The inclusion criteria were Saudi students aged between 14-18 years with no craniofacial deformities or syndromes and no orthodontic treatment carried out.
Unlabelled: Pursuing an esthetically-pleasing orthodontic outcome, orthodontic patients must consider and choose from the different available options of orthodontic appliance. Practitioners need to be better informed of their customers' preferences to make better practice management decisions and satisfy their patients' needs.
Purpose: To explore adult laypeople's perceptions of the attractiveness, acceptability, preference and economic value of different orthodontic appliances when they consider these appliances for themselves and for their children.
Patients' Perceptions To Reduced Orthodontic Treatment Time In Saudi Arabia.
Patient Prefer Adherence
November 2019
Purpose: To evaluate patients' perceptions regarding orthodontic treatment duration, cost, and willingness to undergo different procedures and techniques available to accelerate orthodontic tooth movement in Saudi Arabia.
Patients And Methods: A cross-sectional survey was conducted in Saudi Arabia from January to March 2019. Patients from multiple centers were electronically surveyed regarding their perception of orthodontic treatment duration, acceptance of appliances and techniques available to shorten the duration of orthodontic treatment, and how much increase in fees they were willing to pay for those appliances and techniques.
Aim: The aim of this study is to assess the impact of dental visits on oral health awareness among the Saudi population.
Materials And Methods: A cross-sectional survey was conducted in Saudi Arabia. An online self-administered questionnaire was distributed from January 2011 to June 2013.
Purpose: The purpose of this study was to assess students' perception, attitudes, and readiness toward online dental education in Saudi Arabia.
Materials And Methods: This is a longitudinal study using a 5-point Likert scale questionnaire distributed to a cohort group of undergraduate dental students at King Abdulaziz University, Faculty of Dentistry, Jeddah, Saudi Arabia, during their fourth year (T1) and internship year (T2). It assessed technological access, computer skills, online skills, and motivation level in using e-learning for personal and learning purposes; and overall readiness for e-learning adoption in dental education.
Objective: The aim of this systematic review and meta-analysis is to quantitatively compare previous studies that evaluated skeletal and dentoalveolar effects of the Forsus™ Fatigue Resistance Device (FRD) in the treatment of Class II malocclusion with a matched untreated control group.
Materials And Methods: Four electronic searches PubMed, Web of Science, Cochrane Library, and Science Direct that were limited to articles on human studies comparing the effect of Forsus appliance with a matched control group in the treatment of Class II malocclusion from the year (2000-2017). An additional manual search was carried out by examining the references of the included articles, SEARCH terms included; Forsus and Class II malocclusion.
Objective: To explore the potential, challenges and needs for internship research activities in achieving scholar outcomes among graduates.
Methods: A qualitative general needs assessment and evaluation of an internship research program was conducted at King Abdulaziz University, Faculty of Dentistry (KAUFD), KSA, from December 2014 to February 2015 using focus groups and interviews. The participants included: administrates, faculty, and internship students.
Age- and gender-related incisor changes in different vertical craniofacial relationships.
J Orthod Sci
January 2016
Objective: To investigate the age- and gender-related changes in upper and lower incisors' position and inclination in different vertical craniofacial relationships.
Materials And Methods: A retrospective study on patients' records of age 8-48 years. The sample was divided based on Frankfort mandibular plane angle into three groups; normal, high, and low angle groups.
Objectives: To investigate the effects of nicotine on orthodontic tooth movement and accompanying histological and immunohistochemical changes in rats.
Methods: An experimental study conducted at King Abdulaziz University, Jeddah, Saudi Arabia between 2013 and 2014. Thirty-two rats randomly divided into 4 groups.
First molar health status in different craniofacial relationships.
Clin Cosmet Investig Dent
July 2016
Objective: To investigate the association between the health status of permanent first molars and different craniofacial relationships among adolescents.
Study Design: This is a retrospective study on patients' records aged 11-15 years. Sex, skeletal relationship, vertical growth pattern, malocclusion, overjet, and overbite were assessed.
Objectives: To assess in vitro the quantitative and qualitative debonding behavior of the AEZ debonding plier, compared to shear debonding force, in debonding orthodontic metal brackets.
Materials And Methods: Thirty-two extracted premolars bonded with metal brackets were randomly divided into two equal groups according to the type of simulated debonding method; compressive bond strength (CBS) group using AEZ debonding plier (Ormco Corporation, USA) attached to the Instron machine, and shear bond strength (SBS) group using regular Instron attachments. All teeth were subjected to debonding forces, and debonding strength was assessed.
Objectives: To systematically review the literature to assess the quality of evidence related to corticotomy-assisted orthodontic treatment (CAOT) as adjunctive treatment in orthodontics.
Methods: The study was conducted in the Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia between 2013 and 2014. Various electronic databases were searched and abstracts were retrieved.
Introduction: The objective was to assess the effects of different orthodontic treatment needs on the oral health-related quality of life (OHRQoL) of Saudi children seeking orthodontic treatment as perceived by the children and their parents.
Methods: A cross-sectional evaluation of orthodontic patients and their attending parents was conducted to assess the relationship between orthodontic treatment needs and the OHRQoL. The study sample comprised 120 young orthodontic patients (36 boys, 84 girls; age range, 12-15 years).
Objectives: To investigate the knowledge, attitude, and barriers using evidence based practice (EBP) by future Saudi dentists and physicians.
Methods: A questionnaire adapted from an EBP questionnaire was distributed to dental and medical final year students and new graduates at King Abdulaziz University, Jeddah, Saudi Arabia during the 2012 to 2013 academic year. The questionnaire consisted of 14 multiple-choice questions, and 2 open ended questions and was divided into 5 sections assessing different categories.