Straightforward replication of digital wax-up design into direct composite resin restorations in adolescents using a custom 3-dimensionally printed index.

This case report introduces a straightforward, noninvasive approach for the esthetic rehabilitation of malformed anterior teeth in adolescents using direct composite restorations. The universal composite resin restorations are applied within a transparent 3-dimensionally printed rigid-resin index, which is individually customized from a digital wax-up. Compared to other methods, this technique streamlines the restoration process, significantly reducing chairside time while enhancing the predictability, accuracy, and patient acceptance of the aesthetic outcome.

Association between maxillary incisor width and craniofacial measurements: A cone beam computed tomography study.

Statement Of Problem: Accurate prediction of maxillary central incisor width (CIW) is essential in prosthodontics for selecting appropriately sized denture teeth. While traditional methods exist, the digital era may offer more reliable techniques for anterior tooth selection.

Purpose: The purpose of this study was to investigate the correlation between CIW and craniofacial measurements derived from cone beam computed tomography (CBCT) scans to identify predictors for CIW and examine possible sexual dimorphism.

Esthetic Rehabilitation of Congenitally Peg-Shaped Lateral Incisors Using the Injectable Composite Resin Technique: A Clinical Report.

This report details the esthetic dental rehabilitation of a patient with peg-shaped and malformed lateral incisors, conditions that stem from congenital anomalies in tooth formation, using the injectable composite resin technique (ICRT). The ICRT clinical workflow initiates with a smile analysis and precise shade matching, followed by the construction of a diagnostic wax-up crafted according to esthetic and functional guidelines. Subsequently, a mock-up is developed to ensure that the planned restorations fulfill the patient's functional requirements and esthetic expectations.

Light Polymerization through Glass-ceramics: Influence of Light-polymerizing Unit's Emitted Power and Restoration Parameters (Shade, Translucency, and Thickness) on Transmitted Radiant Power.

Background: This study assessed light transmission through ceramic discs varying in shade, translucency, and thickness using light-polymerizing units with different radiant power/flux (RP) outputs.

Methods: Disc-shaped specimens (0.5 mm, 1.

Evaluating the impact of scan body angulation and geometric attachments on the accuracy of complete-arch digital implant impressions: A comparison of two intraoral scanners.

Purpose: To investigate the effects of scan body (SB) angulation and geometric attachments (GAs) on the deviations of complete-arch digital implant impressions obtained using intraoral scanners (IOSs), in relation to the gold-standard desktop scanner.

Material And Methods: Two IOSs (iTero and Omnicam), two SB angulations (0 degrees and 30 degrees), and GAs for the SBs were investigated. SBs were attached to an edentulous maxillary cast with the following implant analogs: parallel 0-degree at positions #13, #23, and #26, and 30-degree posteriorly tilted at position #16.

Thickness-Dependent Light Transmittance and Temperature Rise in Dual-Cure Bioactive and Light-Cure Bulk-Fill Composite Resins.

This study aimed to assess the light transmittance (T) and temperature increase through different increments of dual-cure bioactive bulk-fill restorative material (ACTIVA), light-cure bulk-fill, and conventional composite resin materials. Cylindrical specimens with a diameter of 8 mm and heights of 1, 2, 3, and 4 mm of ACTIVA, Tetric-N-Ceram bulk-fill (TBF), Filtek One bulk-fill (FBF), and Filtek Z250 (FZ) (n = 6 per group, 96 in total) were light-cured with a visible blue low-intensity light-emitting diode (LED) (650-800 mW/cm irradiance). T, and the temperature increase, were measured using an optical power meter and a digital thermometer during curing.

Evaluation of separating media for autopolymerizing acrylic resin fabricated on 3D-printed acrylate-based resin dental casts.

Statement Of Problem: Limited data are available regarding the most suitable separating medium for fabricating dental acrylic resin prostheses or appliances on 3-dimensional (3D)-printed resin casts.

Purpose: The purpose of this in vitro study was to investigate and evaluate different separating media in terms of the ease of removal and detail reproduction of an autopolymerizing acrylic resin fabricated on acrylate-based 3D-printed resin casts.

Material And Methods: A cube-shaped cast was designed with a built-in truncated cone-shaped hole and a V-shaped groove at the base.

Knowledge and Attitudes of Saudi Medical Students about Emergency Management of Traumatic Dental Injuries.

Several studies indicate that physicians lack emergency management knowledge concerning traumatic dental injuries (TDIs), emphasizing the fact that medical students are not taught about this topic. This study aimed to assess the basic knowledge and attitudes of medical students in Saudi Arabia about emergency TDI management. This cross-sectional study recruited a convenience sample of medical students in their clinical years through social networking sites and asked them to answer a pretested internationally accepted questionnaire that included demographic questions, two case scenarios about crown fractures and avulsion of permanent teeth, and self-assessment questions.

Evaluation of the marginal and internal fit of CAD/CAM crowns designed using three different dental CAD programs: a 3-dimensional digital analysis study.

Objectives: The purpose of this in vitro study was to assess and compare the marginal and internal fit of machine-milled crowns designed using three different CAD software programs.

Materials And Methods: Digital impressions of the master zirconia casts containing the prepared molar were obtained using an intraoral scanner. The obtained standard tessellation language (STL) files were imported into three CAD software programs (Multi-CAD, Blue-Sky CAD, and InLab), and crown designs were generated.

Levels and correlates of knowledge of teething among Saudi Arabian families.

Background: Parental knowledge of teething has been repeatedly investigated; however, little emphasis has been made on the associated sociodemographic factors with good knowledge of the parents and whether or not good knowledge is translated into adopting proper pain-relieving practices. The present study aims to firstly assess the knowledge level and practices of Saudi parents regarding teething and then explore associated sociodemographic variables with good knowledge of teething to determine the relation between parents' knowledge of teething and their adoption of pain-relieving practices.

Methods: This cross-sectional study recruited parents from the social networking sites Facebook, Twitter, Instagram, and WhatsApp, and they were asked to answer a pretested three-part internationally accepted questionnaire.

Reduction of aerosols and splatter generated during ultrasonic scaling by adding food-grade thickeners to coolants: an in-vitro study.

Objective: The effectiveness of using food-grade coolant thickener solutions on the amount of aerosols generated and splatter contamination spread distance during simulated ultrasonic scaling was examined.

Materials And Methods: The study was performed using a phantom lower jaw placed on a black box. Simulated ultrasonic scaling was performed for 2 min using four coolant solutions: distilled water (control), 2% wt.

Oral Health-Related Quality-of-Life According to Dental Caries Severity, Body Mass Index and Sociodemographic Indicators in Children with Special Health Care Needs.

This study aimed to assess the impact of dental caries' severity, body mass index (BMI), and sociodemographic factors on oral health-related quality of life (OHRQoL) for special health care needs (SHCN) children and the suitability of their caregivers as proxies to determine OHRQoL. This cross-sectional study recruited 107 pairs of SHCN children and their caregivers and asked them to complete a questionnaire on sociodemographic issues as well as the Arabic version of the early childhood oral health impact scale (A-ECOHIS). This was followed by a dental examination.

Pediatric Obstructive Sleep Apnea: Knowledge and Attitudes of Medical and Dental Students and Fresh Graduates from Saudi Arabia.

This study aimed to assess the knowledge level and attitudes of graduating Saudi medical and dental students and fresh graduates from those faculties about pediatric obstructive sleep apnea (OSA), and the relation of their knowledge level to sociodemographic variables. In this cross-sectional study, 722 graduating students and fresh graduates were requested to answer a questionnaire pretested for validity and reliability. The data were analyzed statistically.

Electrolyzed Water Generated On-Site as a Promising Disinfectant in the Dental Office During the COVID-19 Pandemic.

Electrolyzed water is a safe, broad-spectrum bactericidal and viricidal agent, which can be used as a potent and effective alternative disinfectant in case of supply shortages. This report describes the on-site production of slightly acidic electrolyzed water (EW) from diluted salt solution and vinegar at a dental office using a portable EW generator unit. Such measures can ensure the safe continuity of important dental service provision for our patients during the coronavirus disease 2019 (CoVID-19) pandemic.

Risk Factors of Early Childhood Caries Among Preschool Children in Eastern Saudi Arabia.

This study aimed to determine the risk factors of early childhood caries (ECC) among preschool children from eastern Saudi Arabia. In this cross-sectional study, 241 carers and their children from 10 daycares were recruited and asked to complete a questionnaire aimed at assessing their sociodemographic profile and oral health-related behaviors. This was followed by a dental examination of the children by two calibrated dentists.

Effect of ambient lighting conditions on tooth color quantification in cross-polarized dental photography: A clinical study.

Statement Of Problem: Limited data are available in the dental literature regarding the effect of ambient lighting on the consistency of color quantification in cross-polarized photography.

Purpose: The purpose of this clinical study was to investigate the effects of ambient lighting conditions and postprocessing photograph calibration on color quantification in cross-polarized dental photography.

Material And Methods: Twelve volunteers with intact maxillary central incisors were recruited.

Fabrication of Custom Post-And-Core Using a Directly Fabricated Silicone Pattern and Digital Workflow.

This report introduces an alternative clinical and laboratory technique for the direct fabrication of a custom post-and-core pattern using poly (vinyl siloxane) (PVS) occlusal registration material, followed by a digital workflow. This technique decreases chairside time, eliminates the risk of locking the pattern into the postspace and improves accuracy of the custom post-and-core.

The use of sectional matrix in direct restoration of a structurally compromised posterior tooth: a clinical technique.

This report describes a clinical technique to facilitate the placement of direct composite resin restorations in structurally compromised posterior teeth, to restore proper anatomical contours and interproximal contacts using sectional matrix kit and thermoplastic impression material.

Effect of cooling water temperature on the temperature changes in pulp chamber and at handpiece head during high-speed tooth preparation.

Objectives: It was the aim of this study to evaluate the effect of cooling water temperature on the temperature changes in the pulp chamber and at the handpiece head during high-speed tooth preparation using an electric handpiece.

Materials And Methods: Twenty-eight intact human molars received a standardized occlusal preparation for 60 seconds using a diamond bur in an electric handpiece, and one of four treatments were applied that varied in the temperature of cooling water applied (control, with no cooling water, 10°C, 23°C, and 35°C). The temperature changes in the pulp chamber and at the handpiece head were recorded using K-type thermocouples connected to a digital thermometer.

A technique to facilitate ceramic veneer cementation.

This report describes a technique to facilitate ceramic veneer cementation. By stabilizing a ceramic veneer in its fully seated position with miniature wooden spring clips before resin polymerization, excess luting resin cement can be removed from ceramic veneer margins without the risk of veneer dislodgement or fracture.

A Radiographic Study of the Association between Apical Periodontitis and Technical Quality of Intraradicular Posts and Root Canal Fillings: A Cross-sectional Study in Qassim Region, Saudi Arabia.

Objectives: This study evaluates the association between the apical periodontitis (AP) and quality of intraradicular posts and the quality of root fillings assessed radiographically in Qassim region, Saudi Arabia.

Materials And Methods: Digital periapical radiographs of 327 teeth with post-retained restoration were retrieved randomly from the Qassim University screening clinic's digital archives and evaluated. The quality of the intraradicular post and root filling was evaluated according to the optimum criteria.

Microleakage of Glass Ionomer-based Provisional Cement in CAD/CAM-Fabricated Interim Crowns: An in vitro Study.

Aim: The aim of this study was to compare in vitro the marginal microleakage of glass ionomer-based provisional cement with resin-based provisional cement and zinc oxide non-eugenol (ZONE) provisional cement in computer-aided design and computer-aided manufacturing (CAD/CAM)-fabricated interim restorations.

Materials And Methods: Fifteen intact human premolars were prepared in a standardized manner for complete coverage of crown restorations. Interim crowns for the prepared teeth were then fabricated using CAD/CAM, and the specimens were randomized into three groups of provisional cementing agents (n = 5 each): Glass ionomer-based provisional cement (GC Fuji TEMP LT™), bisphenol-A-glycidyldimethacrylate (Bis-GMA)/ triethylene glycol dimethacrylate (TEGDMA) resin-based cement (UltraTemp® REZ), and ZONE cement (TempBond NE).

Technique to verify the accuracy of a definitive cast before the fabrication of a fixed dental prosthesis.

This report describes a straightforward technique for verifying the accuracy of a definitive cast by using a maximal intercuspation record fabricated from polyvinyl siloxane occlusal registration material. This precise verification method detects inaccurate casts before the dental prosthesis is fabricated, thus saving chairside and laboratory time while reducing the number of costly prosthesis remakes.

Agreement between digital image analysis and clinical spectrophotometer in CIEL*C*h° coordinate differences and total color difference (ΔE) measurements of dental ceramic shade tabs.

Objectives: The objectives of this in vitro study were: 1) to test the agreement among color coordinate differences and total color difference (ΔL*, ΔC*, Δh°, and ΔE) measurements obtained by digital image analysis (DIA) and spectrophotometer, and 2) to test the reliability of each method for obtaining color differences.

Materials And Methods: A digital camera was used to record standardized images of each of the 15 shade tabs from the IPS e.max shade guide placed edge-to-edge in a phantom head with a reference shade tab.