Publications by authors named "N Mattheos"
Background/purpose: Many designs of static computer-assisted implant surgery (sCAIS) are available for clinician to achieve proper implant position. However, there were not any studies that approached the design alone to evaluate whether sleeve-in-sleeve or sleeve-on-drill design provided most accuracy implant position. The purpose of this study was to investigate the precision of implant placement with sleeve-in-sleeve and sleeve-on-drill static computer assisted implant surgery (sCAIS) designs.
View Article and Find Full Text PDFBackground/purpose: Computer-assisted implant surgery (CAIS) is increasingly performed to reduce deviations in implant position. Dynamic CAIS or navigation systems provide instant display of implant drilling instruments and patient positions directly on the computer monitor. Augmented reality (AR) technology allows operators to visualize real-time information projected onto the lenses of AR glasses.
View Article and Find Full Text PDFBackground/purpose: The increasing importance of computer assisted implant surgery (CAIS) in the practice of implant dentistry calls for adequate education and training of clinicians. However, limited evidence exists to support optimal educational strategies and best practices. This study aimed to investigate the effectiveness of distributed training with dynamic CAIS (d-CAIS) on the precision of freehand implant placement by inexperienced operators.
View Article and Find Full Text PDFArticle Synopsis
- This study developed and validated a convolutional neural network (CNN) called YOLOv5 to identify impacted mandibular third molars in panoramic radiographs and classify the difficulty of their extraction.* -
- The algorithm was trained on 1,300 images and tested on 430 images, showing a solid performance with precision-recall curves ranging from 72% to 89% and an AUC of 87% for classifying surgical difficulty levels.* -
- The YOLOv5 model demonstrated a strong agreement with human experts, suggesting it could enhance clinical decision-making and be useful in screening for third molar issues.*
Comparing Medium to Long-Term Esthetic, Clinical, and Patient-Reported Outcomes Between Freehand and Computer-Assisted Dental Implant Placement: A Cross-Sectional Study.
J Esthet Restor Dent
November 2024
Objective: The aim of the study was to compare medium to long-term clinical and patient-reported outcomes between implants placed with computer-assisted implant surgery (CAIS) and freehand protocols.
Materials And Methods: Thirty dental implants in the anterior maxillary region with an average of 4 years after loading were assessed by means of Pink Esthetic Scores (PESs), marginal bone level (MBL), and clinical and patient-reported outcomes.
Results: CAIS significantly outperformed freehand placement with regard to PES scores (p = 0.