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Influence of orthodontic bracket block-out materials on superimposition errors when substituting scanned dental imaging data onto computed tomography images.
Imaging Sci Dent
December 2024
Department of Oral and Maxillofacial Surgery, College of Dentistry, Yonsei University, Seoul, Korea.
Purpose: The study was performed to examine the error associated with image superimposition when computed tomography (CT) images of the dental region are substituted with dental scan data, according to the block-out material used in dental impressions.
Materials And Methods: A typodont model was created by bonding orthodontic brackets to teeth on plaster dental stones using melted dental base-plate wax. In the experiment, 2 groups were compared: one using wax and the other using putty as the block-out material to prevent tearing of the impression material during the acquisition of dental impressions.
Bilateral Symmetry in the Aesthetic Area Achieved by Digital Smile Design on 3D Virtual Patient and Conventional Diagnostic Wax-Up-A Comparative Study.
Dent J (Basel)
November 2024
Department of Prosthetic Dentistry, Faculty of Dental Medicine, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria.
: Digital diagnostic waxing is a contemporary alternative to the conventional wax-up method. This study aims to evaluate the impact of both techniques on the perceived frontal symmetry in aesthetic treatment planning. Dental symmetry significantly influences smile perception and, consequently, the acceptance of treatment outcomes, highlighting its clinical importance in restorative dentistry.
View Article and Find Full Text PDF[Comparative study of iRoot SP and AH Plus on root canal sealing ability in periodontally compromised teeth].
Shanghai Kou Qiang Yi Xue
October 2024
Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Oral Tissue Regeneration; Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration; Shandong Provincial Clinical Research Center for Oral Diseases. Jinan 250012, Shandong Province, China. E-mail:
Purpose: This study was aimed to compare the difference between iRoot SP and AH Plus on root canal sealing ability for teeth extracted due to severe periodontitis and explore whether the dentin tubule pathway plays an important role in the development of endodontic-periodontic lesions(EPL), in order to provide a theoretical basis for selection of proper time for root canal therapy and suitable root canal sealants in patients with EPL.
Methods: Fifty single-root anterior teeth extracted due to severe periodontitis were selected. The roots were completely debrided to remove the calculus, dental plaque and cementum.
Esthetic and Functional Rehabilitation: Retreatment of Anterior Fixed Dental Prothesis With Biologically Oriented Preparation Technique and Digital Workflow.
J Esthet Restor Dent
December 2024
Analysis of Techniques, Material and Instruments Applied to Digital Dentistry and CAD/CAM Procedures Research Group, University Complutense of Madrid, Madrid, Spain.
Objective: This clinical case describes a multidisciplinary retreatment of a patient with anterior fixed dental prostheses (FDPs) using minimally invasive restorations and a biologically oriented preparation technique (BOPT).
Clinical Considerations: A 56-year-old female patient, treated 30 years ago with a metal-ceramic FDP due to dental agenesis, presented a misfit prosthesis at the gingival margin, black spaces, and food retention at the pontics. Notably, tooth number 2.
Straightforward replication of digital wax-up design into direct composite resin restorations in adolescents using a custom 3-dimensionally printed index.
Restor Dent Endod
November 2024
Department of Prosthetic Dental Sciences, College of Dentistry, Qassim University, Al-Mulaydah, Qassim, Saudi Arabia.
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.
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