Effect of Type of Resin Composite Material on Porosity, Interfacial Gaps and Microhardness of Small Class I Restorations.

Aim: This study aimed to compare the best restorative approach for the conservative class I cavity by comparing flowable and nanohybrid composites versus the placement technique regarding surface microhardness, porosity, and presence of interface gaps.

Materials And Methods: Forty human molars were divided into four groups ( = 10). Standardized class I cavities were prepared and restored using one of the following materials: Group I - Flowable composite placed by incremental technique; group II - Flowable composite placed in one increment; group III - Nanohybrid composite placed by incremental technique; and group IV - Nano-hybrid composite placed in one increment.

Oral health knowledge, attitude and practice among adolescents in Kuwait.

Objectives: Adequate knowledge about oral health at a young age is essential in establishing good oral health related behaviors and in developing a positive attitude towards oral health. This study aims to assess the oral health knowledge, attitude and practice of adolescent children aged 15-17 years in Kuwait.

Methods: This cross-sectional survey was conducted in 12 randomly selected public schools in Kuwait using a two-stage cluster sampling method.

The impact of ICDAS on occlusal caries treatment recommendations for high caries risk patients: an in vitro study.

Background: The diagnostic criteria and tools used in caries lesion detection have been shown to affect the decision-making for caries treatment. Compared to other diagnostic criteria/classifications, ICDAS has been shown to provide a more accurate method for the detection of occlusal caries lesions. The influence of using ICDAS on caries treatment recommendations has received increasing attention in recent years.

Impact of Magnifying Loupes on Interexaminer Agreement in the Detection of Noncavitated Occlusal Carious Lesions.

Purpose: This study aimed to assess the impact of using magnifying loupes on interexaminer agreement in the detection of noncavitated occlusal carious lesions.

Materials And Methods: A total of 155 permanent molars with no frank cavitation were selected for the study. Five examiners with different specialties and experience each examined the occlusal surfaces twice using International Caries Assessment and Detection System (ICDAS) criteria.

Layered Base Plate Blocks and Operative Dentistry Skills.

Aim: Preclinical dental training is essential for the development of psychomotor skills necessary for clinical practice. The study aimed to investigate the impact of teaching with a layered base plate blocks on cavity preparations and students' self-perceived confidence, readiness, and ability.

Materials And Methods: A cross-sectional study recruited 52 dental students into two groups; one trained (test) with layered base plate and the other without (control).

Stress Level of Dental and Medical Students: Comparison of Effects of a Subject-Based Curriculum versus a Case-Based Integrated Curriculum.

The aim of this study was to investigate the stress level of medical and dental students at Kuwait University after a case-based integrated curriculum replaced the former subject-based curriculum. A modified version of the Dental Environment Stress questionnaire was used to measure possible stressors for both medical and dental students. The investigators administered the questionnaire for the first time in 2008, when Kuwait University medical and dental schools followed a subject-based curriculum (group A).

Variables affecting the inter- and intra-examiner reliability of ICDAS for occlusal caries diagnosis in permanent molars.

Objectives: The aims of this study were to assess the validity and reproducibility of the International Caries Detection and Assessment System (ICDAS) in detecting occlusal caries in permanent molars and to investigate variables that can affect the reproducibility of ICDAS.

Methods: Five experienced, trained, and calibrated investigators examined the occlusal surfaces of 142 extracted permanent molars, ranging from sound to cavitated dentine caries. All visual examinations were conducted under standard conditions.

Restorative treatment thresholds: factors influencing the treatment thresholds and modalities of general dentists in Kuwait.

Objectives: This study investigated the thresholds at which general dentists in Kuwait would restore approximal and occlusal carious lesions and examined the demographic characteristics of the dentists in relation to their decision making.

Subjects And Methods: The study population consisted of a random sample of 185 general dentists practicing in the Ministry of Health of Kuwait. A survey questionnaire was administered.

Factors relating to usage patterns of amalgam and resin composite for posterior restorations--a prospective analysis.

Objectives: This study prospectively analyzed the use of amalgam and resin composite posterior restorations placed by general dentists in relation to dentist, patient and cavity factors.

Methods: One thousand posterior restorations placed by a representative sample of general dentists working in the Ministry of Health (MOH), Kuwait, during routine clinical practice were included. Information about the restorations was recorded using a survey questionnaire.

Caries experience among children with type 1 diabetes in Kuwait.

Purpose: The purpose of this study was to determine the association among type 1 diabetes mellitus (DM), caries experience, and salivary glucose in 12- to 15-year-olds in Kuwait.

Methods: A cross-sectional design was chosen involving 53 DM patients and 53 nondiabetic controls, group-matched by age and sex to the experimental group. The DM patients comprised 2 groups: (1) 14 controlled DM children (glycated haemoglobin, HbA1c=<8); and (2) 39 children with uncontrolled DM (HbA1c>8).

Effect of C-factor and LED Curing Mode on Microleakage of Class V Resin Composite Restorations.

Objectives: To investigate the effects of cavity C-factor and LED curing mode on microleakage of class V resin composite restorations.

Methods: Eighty extracted human maxillary premolars were divided into four groups. In groups I and II, V-shaped class V cavities (C-factor ≈ 1.

Clinical evaluation of posterior resin composite restorations placed by dental students of Kuwait University.

Objective: To investigate the survival rate over a 3-year period of posterior resin composite restorations placed by dental students of Kuwait University.

Materials And Methods: Posterior resin composite restorations placed by 5th-, 6th- and 7th-year dental students between 2004 and 2005 were evaluated. All patients with posterior composite restorations placed during this period of time were recalled.

A randomized clinical trial of in-office dental bleaching with or without light activation.

Aim: The study aimed to evaluate the effect of four in-office dental bleaching methods on shade change, color stability, patient satisfaction and postoperative sensitivity.

Methods And Materials: Forty patients were randomly divided into four groups (n=10) according to the method of in-office bleaching used: Group A-35% hydrogen peroxide (HP); Group B-35% HP plus BriteSmile and a blue curing light; Group C-35% HP plus QuickSmile and an LED curing light; Group D-35% HP and a Zoom2 metal halide curing light. For all groups, there was only one session of bleaching with three 20-minute applications of bleaching gel.

Re-Treatment Decisions for Failed Posterior Restorations among Dentists in Kuwait.

Objectives: To compare re-treatment choices for MOD amalgam or resin composite restorations with or without cusp fracture among dentists in Kuwait.

Methods: A random sample of 158 dentists completed a questionnaire designed to obtain socio-demographic, educational and work-related information and their choices for re-treatment of four scenarios of failed restorations on lower first molars: 1. MOD amalgam restoration; 2.

Three-dimensional finite element analysis of the effect of incomplete seating of cemented fixed dental prostheses.

This study investigated the stress distribution patterns of two finite element models of a stylized fixed dental prosthesis-cement-abutment tooth system, one with the prosthesis completely seated and the other manipulated to be incompletely seated. Maximum equivalent von Mises stress varied according to direction and location of load, with vertical loading of the pontic of the completely-seated FDP (2.9 MPa) and oblique loading of the premolar of the incompletely-seated FDP (80.

Factors associated with postoperative sensitivity of amalgam restorations.

Unlabelled: Postoperative sensitivity is a common clinical problem with restorative treatments.

Study Aims: To identify factors that may be predictive of reported postoperative sensitivity to cold following placement of class I and II amalgam restorations in primary carious lesions.

Materials And Methods: One hundred and twenty patients were recruited.

Recurrent caries at crown margins: making a decision on treatment.

Objective: To evaluate dentists' treatment choices for a crowned tooth with varying degrees of recurrent caries.

Materials And Methods: A total of 158 dentists participated in the study. A paper patient case (PPC) depicting a radiograph showing varying degrees of recurrent caries at the crown margin was used: PPC1 = small carious lesion away from crown margin; PPC2 = small carious lesion at crown margin; PPC3 = small carious lesion at crown margin extending onto the root, and PPC4 = large carious lesion at the margin; PPC5-PPC8 had the same carious conditions as PPC1-PPC4, respectively, but the teeth were non-vital.

Effect of LED curing modes on postoperative sensitivity after Class II resin composite restorations.

Purpose: The aim of this study was to compare postoperative sensitivity following placement of posterior composite restorations using the fast- or step-curing modes of an LED curing light.

Materials And Methods: Thirty patients participated, with each having two homologous contralateral posterior teeth with Class II carious lesions. One restoration was cured using the fast-curing mode of the LED curing light (Mini LED), and the contralateral restoration cured using the step mode of the same curing light.

Dental health attitudes and behaviour among dental students in Jordan.

Objective: Examine and compare differences in oral health attitudes and behaviour among Jordanian dental students.

Basic Research Design And Participants: Cross-sectional study of 314 dental students was conducted to compare differences in oral health behaviour and attitudes among these students in different levels of academic education.

Setting: Jordan University of Science and Technology.

Effect of cavity disinfection on postoperative sensitivity associated with amalgam restorations.

This clinical study assessed the postoperative cold sensitivity reported by patients following the Class I and Class II amalgam restoration of primary carious lesions after different cavity treatments. One hundred and twenty patients, each with a previously untreated tooth requiring an amalgam restoration due to the presence of a carious lesion, were included. Sixty teeth had lesions that were radiographically judged to be located in the middle third of dentin, and another 60 were located in the inner third of dentin.

Smoking prevalence and its effect on dental health attitudes and behavior among dental students.

Objective: To determine smoking prevalence and its effect on dental health attitudes and behavior among dental students in Jordan.

Subjects And Methods: A cross-sectional study of 314 dental students was conducted at Jordan University of Science and Technology. Subjects were surveyed using a modified version of the Hiroshima University Dental Behavior Inventory (HU-DBI) questionnaire.

Effect of LED curing modes on cusp deflection and hardness of composite restorations.

This in vitro study measured cusp deflection associated with MOD resin composite restorations in maxillary premolars with different curing light modes. Soft-start polymerization may reduce cusp deflection by reducing polymerization shrinkage stress. Forty maxillary premolars were mounted in stone and slot MOD cavities were prepared.

Gender-specific oral health attitudes and behavior among dental students in Jordan.

The aim of this study was to determine the difference in oral health attitudes and behavior between male and female dental students at Jordan University of Science and Technology (JUST). A self-administered questionnaire based on a modified version of the Hiroshima University Dental Behavior Inventory (HU-DBI) was distributed among 375 dental students. The response rate was 83.

Shade-match perception of porcelain-fused-to-metal restorations: a comparison between dentist and patient.

Background: Patient satisfaction with the shade match of restorations has not been appraised carefully in the dental literature. This study compared patients' and a prosthodontist's satisfaction with the shade o f existing porcelain-fused-to-metal, or PFM, restorations.

Methods: The authors selected a convenience sample of 212 patients for this study.