Automated detection and labeling of posterior teeth in dental bitewing X-rays using deep learning.

Standardized tooth numbering is crucial in dentistry for accurate recordkeeping, targeted procedures, and effective communication in both clinical and forensic contexts. However, conventional manual methods are prone to errors, time-consuming, and susceptible to inconsistencies. This study presents an artificial intelligence (AI)-powered system that uses a deep learning-based object detection approach to automate tooth numbering in bitewing radiographs (BRs).

Integrating virtual-reality into restorative dentistry training: A study on the acceptability and effectiveness of tooth preparation simulations.

Statement Of Problem: Digital education using virtual-reality simulators is essential for precise learning in modern education.

Purpose Of Study: This study aimed to develop a virtual-reality dental system for tooth preparation training and assess pre-virtual-reality experiences and perceptions of its potential benefits. We evaluated the post-virtual-reality experience in terms of the effectiveness of the virtual-reality system.

The Use of Artificial Intelligence in Caries Detection: A Review.

Advancements in artificial intelligence (AI) have significantly impacted the field of dentistry, particularly in diagnostic imaging for caries detection. This review critically examines the current state of AI applications in caries detection, focusing on the performance and accuracy of various AI techniques. We evaluated 40 studies from the past 23 years, carefully selected for their relevance and quality.

Comparing the reliability of inter- and intra-grader using digital scanning vs. traditional visual method for evaluating preclinical class II composite preparation.

Objective: This study aimed to evaluate the intra- and inter-grader reliability of four evaluators using three different digital intraoral scanners and visual methods for typodontic Class II composite preparations.

Materials And Methods: Ninety-five typodont teeth of Class II composite preparations were evaluated using traditional visual grading methods (VGM) and digital grading methods (DGM) using the same rubric. Three intraoral scanners were used to scan the Class II cavity preparation for the composite: i700 (Medit, Korea), Trios 4 (3Shape, Denmark), and Shinning 3D (Shinning 3D, China).

The Quality of AI-Generated Dental Caries Multiple Choice Questions: A Comparative Analysis of ChatGPT and Google Bard Language Models.

Statement Of Problem: AI technology presents a variety of benefits and challenges for educators.

Purpose: To investigate whether ChatGPT and Google Bard (now is named Gemini) are valuable resources for generating multiple-choice questions for educators of dental caries.

Material And Methods: A book on dental caries was used.

Mapping the Landscape of the Digital Workflow of Esthetic Veneers from Design to Cementation: A Systematic Review.

The purpose of this systematic review was to map all the existing literature on digitally designed and fabricated esthetic veneers. We aimed to compare the accuracy of digitally designed preparation and cementation guides for esthetic indirect veneers with the conventional workflow. We evaluated studies comparing the accuracy and predictability of workflows between digitally fabricated indirect-esthetic veneers and conventional indirect veneers.

Artificial intelligence in the detection and classification of dental caries.

Statement Of Problem: Automated detection of dental caries could enhance early detection, save clinician time, and enrich treatment decisions. However, a reliable system is lacking.

Purpose: The purpose of this study was to train a deep learning model and to assess its ability to detect and classify dental caries.

Mechanical Properties of Three-Dimensional Printed Provisional Resin Materials for Crown and Fixed Dental Prosthesis: A Systematic Review.

The emergence of digital dentistry has led to the introduction of various three-dimensional (3D) printing materials in the market, specifically for provisional fixed restoration. This study aimed to undertake a systematic review of the published literature on the Mechanical Properties of 3D- Printed Provisional Resin Materials for crown and fixed dental prosthesis (FDP). The electronic database on PubMed/Medline was searched for relevant studies.

Maxillary and mandibular complete-arch implant rehabilitation using a complete digital workflow: A case report.

This article summarizes the clinical steps involved in maxillary and mandibular complete-arch implant rehabilitation using a complete digital workflow. The maxillary arch was recorded using the double digital scan technique, and the mandibular arch using the triple digital scan technique. The digital protocol used in this case report allowed the recording of implant positions via scan bodies, soft tissues, and, most importantly, the interocclusal relationship in the same visit.

Evaluation of the trueness and precision of conventional impressions versus digital scans for the all-on-four treatment in the maxillary arch: An in vitro study.

Purpose: To compare the accuracy of digitizing conventional impressions to intraoral surface scans for all-on-four treatment in the maxillary arch.

Materials And Methods: An edentulous maxillary arch model with four implants placed in an all-on-four design was fabricated. Intraoral surface scans (n = 10) were obtained using an intraoral scanner after scan body insertion.

Classification of maxillectomy in edentulous arch defects, algorithm, concept, and proposal classifications: A review.

Objectives: Aramany's classification of postsurgical maxillectomy defects was introduced for partially edentulous situations, and has been widely used for education and effective communication among practitioners. Numerous classifications of maxillofacial defects, based on surgical procedure, resultant defects, or prosthodontist's perspective after rehabilitation, exist in the literature. However, no single classification has incorporated all these factors.

Evaluation of split-cast techniques for remounting casts on a dental articulator: A survey and an in vitro study.

Introduction: This study aimed to investigate the difference between senior dental students and prosthodontic faculty members regarding their opinions, attitudes and adoption of six split-cast techniques for remounting complete dentures. The accuracy of each technique for measurements of the vertical and the anteroposterior dimensions was assessed.

Materials And Methods: Six split-cast techniques to remove the casts were compared.

Fit of tooth-supported zirconia single crowns-A systematic review of the literature.

Purpose: The purpose of this study is to systematically map all the factors that influence the fit and adaptation of zirconia crowns and/or copings.

Materials And Methods: The investigational strategy involved carrying out an electronic search between December 1, 2009 and September 1, 2019 through the Embase and Medline databases using Boolean operators to locate appropriate articles.

Results: A total of 637 articles were discovered after the removal of duplicates, and 46 of these were selected for evaluation.

Managing Excessive Gingival Display Using a Digital Workflow.

This technique article describes an approach to managing excessive gingival display by lengthening of the clinical crowns using a digital workflow. An intraoral scanner was used to obtain a template to be used for the crown lengthening surgical procedure considering the patient-desired diagnostic setups while fully seating the template on the patient's teeth during surgery. Using a digital approach for lengthening the clinical crowns decreased the likelihood of the need for postsurgical modifications, thus shortening the treatment duration.

Dimensional Changes of Yttria-stabilized Zirconia under Different Preparation Designs and Sintering Protocols.

Purpose: To evaluate the linear and volumetric dimensional changes that occur throughout the fabrication process of monolithic 4.5-6% yttria-stabilized zirconia copings under the influence of different preparation designs and two sintering protocols.

Materials And Methods: A titanium master die was fabricated using Atlantis core file implant-abutment.

Maxillary complete-arch implant-supported restoration: A digital scanning and maxillomandibular relationship workflow.

Intraoral scanners are increasingly used as a replacement for conventional impressions, including the capturing of edentulous arches, although their use may be clinically challenging. This technique article describes the fabrication and use of a custom scanning device to scaffold an intraoral complete-arch scan of at least 6 implant scan bodies in the edentulous maxilla while simultaneously capturing the maxillomandibular relationship for the purpose of establishing a digital workflow to fabricate a maxillary complete-arch implant-supported prosthesis.

The influence of altering sintering protocols on the optical and mechanical properties of zirconia: A review.

Objective: As a result of advancements in chairside technology and speed sintering techniques and increased esthetic demands of patients, efforts have been made to produce monolithic zirconia restorations that are highly translucent, strong, and dense. While methods for processing zirconia are well known, there is a tendency to modify the process parameters with the aim of decreasing the overall processing time and, in particular, the sintering time. This review provides clinicians with scientific evidence of the effects of altering sintering parameters used for dental zirconia on its microstructure, phase transformation, and mechanical and optical properties.

Marginal Discrepancies of Monolithic Zirconia Crowns: The Influence of Preparation Designs and Sintering Techniques.

Purpose: The marginal fit is an essential component for the clinical success of prosthodontic restorations. The aim of this study was to investigate the influence of different abutment finish line widths and crown thicknesses on the marginal fit of zirconia crowns fabricated using either standard or fast sintering protocols.

Materials And Methods: Six titanium abutments were fabricated for receiving zirconia molar crowns.

Avian Test Battery for the Evaluation of Developmental Abnormalities of Neuro- and Reproductive Systems.

Most of the currently used toxicity assays for environmental chemicals use acute or chronic systemic or reproductive toxicity endpoints rather than neurobehavioral endpoints. In addition, the current standard approaches to assess reproductive toxicity are time-consuming. Therefore, with increasing numbers of chemicals being developed with potentially harmful neurobehavioral effects in higher vertebrates, including humans, more efficient means of assessing neuro- and reproductive toxicity are required.

Royal jelly attenuates azathioprine induced toxicity in rats.

In the present study, we investigated the potential protective effects of royal jelly against azathioprine-induced toxicity in rat. Intraperitoneal administration of azathioprine (50 mg/kgB.W.