Perception and Knowledge of Oral and Facial Piercings among Dental Students: Web-based Survey.

Aim: The aim of this web-based questionnaire was to survey dental students to obtain their perception and knowledge of oral and facial piercings.

Materials And Methods: The participants comprised 240 students enrolled in the dental school who were asked to complete 20 close-ended, yes/no, yes/no/do not know, and multiple responses questions. The questionnaire covers general information concerning oral/facial piercing, triggers why youths and early adults get it, probable complications, their appreciation of the possibility of related health conditions, and their knowledge and perception.

A new implicit high-order iterative scheme for the numerical simulation of the two-dimensional time fractional Cable equation.

In this article, we developed a new higher-order implicit finite difference iterative scheme (FDIS) for the solution of the two dimension (2-D) time fractional Cable equation (FCE). In the new proposed FDIS, the time fractional and space derivatives are discretized using the Caputo fractional derivative and fourth-order implicit scheme, respectively. Moreover, the proposed scheme theoretical analysis (convergence and stability) is also discussed using the Fourier analysis method.

Surface Treatments on Repair Bond Strength of Aged Resin Composites.

Aims: The aim was to evaluate the effect of different surface treatments on the repair shear bond strength of aged resin composites.

Materials And Methods: Forty cylindrical-shaped specimens were treated from each material: Tetric Evo Ceram, Neo Spectra, and Filtek Ultimate Universal Restorative and allocated into four groups according to the surface treatment planned to use: Group 1: diamond, Group 2: silica coating, Group 3: carbide burs, and Group 4: control group. Following the surface treatment, composites were repaired with flowable resins.

Numerical Solution of Two-Dimensional Time Fractional Mobile/Immobile Equation Using Explicit Group Methods.

In this paper, we shall present the development of two explicit group schemes, namely, fractional explicit group (FEG) and modified fractional explicit group (MFEG) methods for solving the time fractional mobile/immobile equation in two space dimensions. The presented methods are formulated based on two Crank-Nicolson (C-N) finite difference schemes established at two different grid spacings. The stability and convergence of order are rigorously proven using Fourier analysis.

Incidental Radiographic Detection of a Foreign Body in the Nose of a Child.

Foreign bodies in the nasal cavity are common in children, possibly due to their curiosity to explore body openings. The purpose of this report was to describe a case of an undetected nasal foreign body in a 10-year-old girl who presented to a pediatric dentistry clinic for a routine dental examination. A foreign body in the nasal cavity was discovered during a panoramic radiographic examination.

Comparison of Fracture Resistance of Primary Incisors Restored with Different Intracanal-Reinforcement Materials.

Aim: To evaluate the effects of placing short posts made of different restorative materials on the fracture resistance of root canals in primary incisors of primary teeth.

Materials And Methods: The root canals of 40 extracted primary incisors were prepared and filled with Vitapex and randomly divided into five groups of 8 each. In Groups 1-4, a post space was created and filled with different restorative materials (Tetric N-Ceram Bulk Fill, AeliteFlo, Filtek Z250 XT, and GC Fuji II LC capsule), while Group 5 was kept filled with Vitapex as a control.

Clinical Efficacy of Single Use of Three Different Mouthrinses on the Level of in Saliva.

Aim And Objective: The aim of this cross-sectional population-based clinical study was to assess the effect of single use of three different mouthrinses on the level of salivary of 8 to 10-year-old Saudi children.

Materials And Methods: Convenient samples of 52 Saudi children aged 8-10 years were randomly allocated into four groups of 13 each. Saliva samples were collected to assess the level of at baseline before rinsing with the assigned mouthrinse or control.

Effect of Whitening Toothpastes and Brushing on Microhardness of Esthetic Restorative Materials.

Objective: Whitening toothpastes are widely used. Hence, it is important to understand their effect on the surface properties of restorative materials. To evaluate the effect of three over-the-counter whitening toothpastes and toothbrushing simulation on microhardness of three restorative materials.

Shear Bond Strength of a Resin Composite to Six Pulp Capping Materials Used in Primary Teeth.

Aim: The purpose of this in vitro study was to assess the shear bond strength (SBS) and bond failure types of a resin-composite to six pulp-capping materials used in primary teeth.

Study Design: Eight-disc specimens from each pulp-capping material (6 groups) to bond to Filtek™ Z350 XT Flowable using a standard PVC tube (2×2mm). All groups were prepared according to the instruction of the manufacturer.

Effect of Probiotic Mouthrinses on Surface Microhardness of Esthetic Restorative Materials.

Aim: To assess the influence of three probiotic mouthrinses on the microhardness of three esthetic materials used for teeth restorations.

Materials And Methods: Thirty specimens of each material: conventional glass ionomer cement (GIC), resin-modified glass ionomer, and resin composite were randomly assigned to three groups. Surface microhardness was measured at baseline.

A Comparative Evaluation of the Antimicrobial Effects of Different Mouthrinses against Oral Pathogens: An Study.

Aim: To assess the antimicrobial effects of natural and semi-natural mouthrinses on isolates of , and obtained from the saliva samples and their reference strains.

Materials And Methods: Natural and semi-natural mouthrinses included in this study were herbal mix mouthrinse, cranberry mouthrinse, chlorhexidine digluconate mouthrinse, cranberry extract mixed with chlorhexidine digluconate mouthrinse, chlorhexidine digluconate mouthrinse with alcohol (positive control), and distilled water (negative control). The microbiological examination tests were minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and zone of inhibition test for the saliva isolates of , , and while zone of inhibition test only for their reference strains.

Qualitative Evaluation of the Bracket-Adhesive-Enamel Junction of Metal Orthodontic Brackets: A Preliminary Report.

Objectives: The purpose of this in vitro investigation was to evaluate qualitatively the surface topography at the bracket-adhesive-enamel junction, bonded to the buccal and lingual surfaces of premolars with composite resin and resin-modified glass-ionomer orthodontic adhesives, using two methods of adhesive removal: a dental explorer and a micro brush.

Methods: Forty premolar surfaces were allocated to four groups of 10/ each, 20/buccal and 20/lingual surfaces. The brackets were bonded to the surface of the enamel and any extra adhesive was removed with a dental explorer or a micro brush.

Effects of fruit drinks on surface roughness of two esthetic restorative materials.

Objectives: Restorative materials may be exposed in the oral cavity to chemical agents found in beverages, which may lead to their biodegradation. The purpose of this in vitro study was to evaluate the effect of two fruit drinks commonly used by children on surface roughness of two esthetic restorative materials.

Materials And Methods: One resin composite (RC), one resin-modified glass ionomer (RMGI) and two fruit drinks (orange and cocktail) were used in this study.

Comparative Evaluation of the Antimicrobial Effects of Different Mouthrinses against Streptococcus Mutans: An Study.

To assess the antimicrobial effects of different natural and semi-natural mouthrinses on isolates of S. mutans obtained from the saliva of Saudi children and reference strains of S mutans (ATCC 25175). Saliva samples were collected from 20 children.

Effect of Remineralizing Agents on Bond Strength of Resin-Composites to Primary Enamel.

The purpose of this in vitro investigation was to assess the effect of three remineralizing agents (Voco Remin Pro, Uncle Harry's remineralization kit, Sunshine remineralization gel) on the shear bond strengths of two resin-composites (Tetric N-Ceram and Filtek Z250 Universal Restorative) to enamel of primary molars. Ninety-six enamel specimens were prepared and randomly distributed to eight groups according to the control, remineralizing agents, and resin composite used. Shear bond strength was measured at a crosshead speed of 0.

Effectiveness of educational intervention of oral health for special needs on knowledge of dental students in Saudi Arabia.

Background: It is critical to educate dental students on the essential aspects of oral care for persons with special health care needs (shcn) as they acquire more dental diseases and 80% not receiving routine dental care.

Objective/hypothesis: To evaluate awareness and knowledge of dental students concerning oral-health care for persons with shcn, and to assess the effectiveness of an educational intervention in improving their knowledge.

Methods: Students completed an evaluation in the form of pre-post questionnaires that were answered before and immediately after the 30- minute dvd educational intervention regarding the oral health care of persons with shcn.

A Comparative Evaluation of Six Prophylaxis Pastes, Cups, and Brushes on the Gloss of Three Restorative Materials.

To compare the effect of different combination of prophylaxis-polishing pastes and cups/brushes on the surface gloss of three restorative materials (Filtek Z350, Tetric N-Ceram, and Ionofil Plus AC). Ninety disk-shaped specimens were prepared from each material, thermocycled, and randomly allocated into nine groups with 10 specimens each. Specimens were measured at baseline for gloss.

Analysis of Risk Factors of Pancreatic Injury during Elective Laparoscopic Splenectomy in Children.

Introduction: Laparoscopic splenectomy (LS) became the standard choice for splenectomy in children with benign hematological disease. There are few reports about pancreatic injury during LS. The purpose of this study is to spot on factors increasing the risk of pancreatic injury during LS in children.

Shear bond strength of new and rebonded orthodontic brackets to the enamel surfaces.

Objectives: The objective of this study was to compare the shear bond strength (SBS) of new and rebounded orthodontic brackets bonded to the buccal sound and cleaned enamel surfaces using two orthodontic adhesives: resin-modified glass-ionomer (RMGI) and resin-composite.

Materials And Methods: Forty premolars were randomly allocated into four groups, 10 teeth/group. New and rebonded brackets were bonded to sound and cleaned enamel surface, and then were subjected to thermocycling.

Retention and caries-preventive effect of glass ionomer and resin-based sealants: An 18-month-randomized clinical trial.

The objective of this study was to compare the retention and caries-preventive effect of glass ionomer (Fuji Triage) and resin-based (Clinpro) sealants among 6-9-year-old children. This split-mouth, randomized clinical trial covered 35 children/140 fully erupted permanent first molars. Evaluation was conducted by two independent examiners after 6, 12, and 18 months and the data were compared in relation to the children's caries risk and age groups.

A survey of pediatric dentists' caries-related treatment decisions and restorative modalities - A web-based survey.

Objective: To identify current practices and the preferred caries-related treatment decisions and restorative modalities of primary teeth among pediatric dental practitioners in Saudi Arabia.

Materials And Methods: This was a web-based cross-sectional survey conducted among licensed pediatric dental practitioners in Saudi Arabia. Following the retrieval of the email addresses from the Saudi Dental Council, an email explaining the purpose of the study and a link to SurveyMonkey electronic survey consisting of 23 questions was sent to all the members registered under the pediatric dentistry practitioners, starting in September till December 2013.

Effect of different intermediary bases on microleakage of a restorative material in Class II box cavities of primary teeth.

Introduction: The aim of this in vitro study was to assess and compare the effect of different intermediary bases on microleakage between tooth and a nanocomposite interface in Class II box cavities in primary teeth.

Methods: Standard Class II box cavities were prepared in 52 primary molars and randomly divided into 9 groups according to the intermediary base used (Multicore Flow, Fuji II LC, SDR, Smart Dentin Replacement, and Biodentine). All specimens were subjected to thermocycling and prepared for microleakage testing and evaluation.

Shear bond strength of different dentin substitute restorative materials to dentin of primary teeth.

This in vitro investigation compared the shear bond strength (SBS) of four dentin substitute/replacement materials to caries-affected dentin of primary teeth. Dentin surfaces were randomly divided into four groups of 12 each according to the material used as follows: SDR/Smart Dentin Replacement, Biodentine, Multicore Flow, and Fuji II LC. The SBS was measured and failure modes were determined.

Cone Beam Computed Tomography Evaluation of Inverted Mesiodentes.

A mesiodens is the most common type of supernumerary teeth. The purpose of this report is to present a rare occurrence of non-syndromic impacted inverted mesiodentes in an 8.5-year-old boy who presented with a chief complaint of delayed eruption of his permanent maxillary left central incisor.

Effect of Sandblasting and Type of Cement on the Bond Strength of Molar Bands on Stainless Steel Crowns.

Purposes: The purposes of this study were to: (1) compare the bond strength of molar bands cemented to stainless steel crowns (SSCs) using glass ionomer cement (GIC), resin-modified glass ionomer cement (RMGIC), or polycarboxylate cement (PXC); and (2) assess the influence of sandblasting molar bands on the mean bond strength between the band and the SSC.

Methods: Sixty SSCs and 60 molar bands were used. The inner surfaces of 30 molar bands were roughened by sandblasting prior to cementation.