AutoCOR: Autonomous condylar offset ratio calculator for post-operative total knee arthroplasty radiographs.

Background: This study aims to automate the measurement process of posterior condylar offset ratio (PCOR) and anterior condylar offset ratio (ACOR) to improve the Total Knee Arthroplasty (TKA) evaluation. Accurate calculation of PCOR and ACOR, performed manually by orthopedic surgeons, is crucial for assessing postoperative range of motion and implant positioning. Manual measurements, however, are time-consuming, prone to human error, and subject to variability.

Evaluation of ChatGPT-4o's answers to questions about hip arthroscopy from the patient perspective.

Objectives: This study aimed to evaluate the responses provided by ChatGPT-4o to the most frequently asked questions by patients regarding hip arthroscopy.

Materials And Methods: In this cross-sectional survey study, a new Google account without a search history was created to determine the 20 most frequently asked questions about hip arthroscopy via Google. These questions were asked to a new ChatGPT-4o account on June 1, 2024, and the responses were recorded.

Performance and durability of additively and subtractively manufactured resin-based onlay restorations after thermomechanical aging.

Purpose: To evaluate the effect of material type on dimensional stability, occlusal surface wear, fracture resistance, and failure behavior of resin-based onlay restorations.

Material And Methods: A mandibular right first molar typodont was prepared and digitized using an intraoral scanner to virtually design an onlay restoration with the minimum occlusal thickness of 1.5 mm.

Impact of scanning interruptions on accuracy of implant-supported full-arch scans: An in-vitro pilot study.

Purpose: To assess the impact of involuntary interruptions (simulating tracking loss by moving the scanner out of its focal distance) and voluntary interruptions (pressing the scanner's turn-on button) on the accuracy of implant-supported full-arch scans using an intraoral scanner (TRIOS 5, version 22.1.10; 3Shape; Copenhagen, Denmark).

Breast Cancer Recurrence in Initially Clinically Node-Positive Patients Undergoing Sentinel Lymph Node Biopsy After Neoadjuvant Chemotherapy in the NEOSENTITURK-Trials MF18-02/18-03.

Background: This study aims to identify factors predicting recurrence and unfavorable prognosis in cN+ patients who have undergone sentinel lymph node biopsy (SLNB) following neoadjuvant chemotherapy (NAC).

Methods: The retrospective multi-centre "MF18-02" and the prospective multi-centre cohort registry trial "MF18-03" (NCT04250129) included patients with cT1-4N1-3M0 with SLNB+/- axillary lymph node dissection (ALND) post-NAC.

Results: A total of 2407 cN+ patients, who later achieved cN0 status after NAC and subsequently underwent SLNB, were studied.

Flexural strength, surface roughness, and color stability of various CAD-CAM denture teeth materials.

Purpose: To assess the flexural strength (FS), surface roughness, and color stability of additive manufactured (AM) and subtractive manufactured (SM) denture teeth materials, as well as the effect of thermocycling on these properties.

Materials And Methods: Eighty strips (20/material type; 64×10×3.3 mm) and 60 discs (15/material type; 12×4 mm) were fabricated from four different denture teeth materials (Straumann, Flexcera, Ivoclar, and Candulor).

Surface properties and biofilm formation on resins for subtractively and additively manufactured fixed dental prostheses aged in artificial saliva: Effect of material type and surface finishing.

Statement Of Problem: Additive manufacturing (AM) and subtractive manufacturing (SM) have been widely used for fabricating resin-based fixed dental prostheses. However, studies on the effects of material type (AM or SM resin) and surface finishing (polishing or glazing) on the surface properties and biofilm formation are lacking.

Purpose: The purpose of this in vitro study was to investigate the effects of material type and surface finishing on the surface roughness, wettability, protein adsorption, and microbial adhesion of the AM and SM resins marketed for fixed restorations under artificial saliva-aged conditions.

Comparison of trueness and margin quality of additively and subtractively manufactured definitive resin-based laminate veneers.

Statement Of Problem: Currently available 3-dimensional (3D) additively manufactured (AM) resins used for definitive restorations have different chemical compositions and viscosities. The fabrication trueness and margin quality of laminate veneers additively manufactured with different resins have not been extensively studied.

Purpose: The purpose of this in vitro study was to evaluate the fabrication trueness and margin quality of AM and subtractively manufactured (SM) definitive resin-based laminate veneers.

Effect of build orientation on the fabrication trueness of additively manufactured implant-supported complete arch interim fixed prostheses.

Purpose: To evaluate how build orientation affects the fabrication trueness of additively manufactured implant-supported complete arch prostheses by comparing them to subtractively manufactured high-impact polymer-based prostheses.

Materials And Methods: An edentulous maxillary model with four implants at canine and first molar regions bilaterally was digitized (ATOS Core 80 5MP) to design a reference implant-supported complete arch prosthesis standard tessellation language file (RF-STL). The STL file was used to manufacture prostheses additively in five different orientations according to the build platform (AM-0, 0-degree; AM-15, 15-degree; AM-30, 30-degree; AM-45, 45-degree; AM-90, 90-degree) or subtractively (SM-HIP, control) (n = 10).

Scan accuracy of wireless intraoral scanners while digitizing a combined scan body-healing abutment system.

Objectives: To investigate the accuracy (trueness and precision) of wireless and wired intraoral scanners (IOSs) when scanning an implant with the combined healing abutment-scan body (CHA-SB) system.

Methods: A partially edentulous mandibular model with a CHA-SB at the right first molar site was digitized with 2 wireless (NeoScan 2000 (NW) and TRIOS 4 wireless (T4 W)) and 2 wired (NeoScan 1000 (N) and TRIOS 4 wired (T4)) IOSs 44 times in total (n = 11). The reference scan file was generated by digitizing the same master model and CHA-SB with an industrial-grade optical scanner.

Idiopathic Granulomatous Mastitis as a Benign Condition Mimicking Inflammatory Breast Cancer: Current Status, Knowledge Gaps and Rationale for the GRAMAREG Study (EUBREAST-15).

Background: Idiopathic granulomatous mastitis (IGM) is a rare, benign inflammatory breast condition often mistaken for inflammatory breast cancer and, therefore, requires a biopsy for accurate diagnosis. Although not cancerous, IGM can cause emotional distress because of severe pain and ensuing breast deformity. Differentiating IGM from other breast inflammations caused by infections is essential.

Can deep learning-designed anterior tooth-borne crown fulfill morphologic, aesthetic, and functional criteria in clinical practice?

Objectives: This study aimed to compare the design outcomes of anterior crowns generated using deep learning (DL)-based software with those fabricated by a technician using conventional dental computer-assisted design (CAD) software without DL support, with a focus on the evaluation of crown morphology, function, and aesthetics.

Methods: Twenty-five in vivo datasets comprising maxillary and mandibular arch scans of prepared maxillary central incisors were utilized to design anterior crowns by using three methods: 1) a DL-based method resulting in as-generated outcome (DB), 2) a DL-based method further optimized by a technician (DM), and 3) a conventional CAD-based method (NC, control). Evaluations were conducted for crown morphology (total discrepancy volume (TDV), root mean square (RMS), positive average (PA) and negative average (NA) deviations), functional aspects (incisal path: deviations, length, and mean inclination), and aesthetics (crown width, height, width-to-height ratio, angular radius of mesioincisal line angle, proximal contact length, and tooth axis angle).

Additive manufacturing trueness and internal fit of crowns in resin modified with a commercially available ceramic composite concentrate.

Statement Of Problem: Inorganic fillers can be incorporated into additively manufactured (AM) resins to improve their properties, and a ceramic composite concentrate has been recently marketed for this purpose. However, knowledge on the printability of AM resins modified with this concentrate is lacking.

Purpose: The purpose of this in vitro study was to evaluate the manufacturing trueness and internal fit of AM crowns in a dental resin modified with a commercially available ceramic composite concentrate.

Impact of magnesium on intraperitoneal adhesion in an experimental rat model.

Background: Intraperitoneal adhesions are fibrous bands that form between tissues and organs in the abdominal cavity, which can result from the body's healing process after surgery, leading to pain, bowel obstruction, and infertility in severe cases. Magnesium (Mg), known for its anti-inflammatory and anticoagulant properties, has been hypothesized to influence adhesion formation.

Objectives: This study is designed to explore the hypothesized benefits of Mg, known for its anti-inflammatory and anticoagulant properties, on the prevention of intraperitoneal adhesions that commonly occur following abdominal surgeries.

Digital analysis of fabrication accuracy and fit in additively and subtractively manufactured implant-supported fixed complete dentures.

Objectives: To digitally evaluate the trueness and fit of additively and subtractively manufactured fixed complete dentures in materials intended for definitive use.

Methods: An edentulous maxillary model with implants at the left first molar, left canine, right canine, and right first molar site was digitized and a fixed complete denture was designed. This design was used to fabricate fixed dentures in an additively manufactured resin for definitive use (AM), a high-impact polymer composite (SM-CR), and a strength gradient zirconia (SM-ZR) (n = 10).

Can nonhazardous postprocessing cleaning solutions enable adequate surface properties for printed dental casts in different resins?

Statement Of Problem: Printed casts and dental devices and prostheses are increasingly being used, and the ecological impact of additive manufacturing should be considered in addition to the fabrication accuracy and surface properties of the printed object. To overcome the ecological drawbacks of alcohol postprocessing, water-washable, 3-dimensionally (3D) printable cast resins and postprocessing cleaning solutions that do not include alcohol have been introduced. However, whether using only water rather than chemical solvents would enable the surface smoothness and hardness required for accurate diagnostic and prosthetic procedures is unknown.

Antibiotic Prophylaxis in Breast Cancer Surgery: A Multicontinental Survey Study.

Introduction: Prophylactic antibiotic (PPA) usage is a common practice in breast cancer surgery. However, there is limited information on the global patterns of antibiotic usage in this setting. This study aimed to investigate the prevalence and preferences of PPA usage in breast cancer surgery among surgeons across different continents.

Bond strength of recently introduced computer-aided design and computer-aided manufacturing resin-based crown materials to polyetheretherketone and titanium.

Statement Of Problem: Several additively and subtractively manufactured resin-based materials indicated for interim and definitive fixed dental prostheses have been launched. However, knowledge of the bond strength of these materials to different implant abutment materials is limited.

Purpose: The purpose of this in vitro study was to evaluate the shear bond strength (SBS) of additively and subtractively manufactured resin-based materials to different implant abutment materials.

Trueness and fit of complete-arch implant-supported frameworks in new-generation additively and subtractively manufactured polymers: An in-vitro study.

Background: There is limited knowledge on the fabrication trueness and fit of additively or subtractively manufactured complete-arch implant-supported frameworks in recently introduced polymers.

Purpose: To evaluate the trueness and marginal fit of additively or subtractively manufactured polymer-based complete-arch implant-supported frameworks, comparing with those of strength gradient zirconia frameworks.

Materials And Methods: A typodont model with 4 implants (left first molar (abutment 1), left canine (abutment 2), right canine (abutment 3), and right first molar (abutment 4)) was digitized (ATOS Core 80 5MP) and an implant-supported complete-arch framework was designed.

Cameo and intaglio surface stability and variability of additively, subtractively, and conventionally manufactured occlusal devices after long-term storage.

Statement Of Problem: Additive and subtractive manufacturing have become alternative technologies for fabricating occlusal devices. However, knowledge of the long-term stability of occlusal devices fabricated using these recent technologies is limited.

Purpose: The purpose of this in vitro study was to evaluate the cameo and intaglio surface stability and variability of additively, subtractively, and conventionally manufactured occlusal devices after 18 months of storage.