Objective: To acquire the 3D point-cloud of the dental casts of intercuspal position and rebuild it in computer.
Methods: A special scanning method was used to acquire the point-cloud of dental cast by using the D.02-L-3D SCANNER and rebuild the model by computer.
Results: The method could acquire a 3D model with high resolving power and clear-cut dental anatomic configuration for the dental casts of intercuspal position.
Conclusion: This is a viable method of scanning with many advantages, such as precision, simplicity, high efficiency. It could satisfy the requirements of clinical practice, teaching and scientific research.
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Dent J (Basel)
November 2024
Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA 02115, USA.
Occlusion plays a crucial role in the long-term success and functionality of dental restorations. The purpose of this study was to investigate the changes in occlusal contacts upon the cementation of zirconia crowns with different cement spacer settings in computer-aided design and computer-aided manufacturing (CAD-CAM) software (3Shape Dental System version 2.102.
View Article and Find Full Text PDFTissue Cell
December 2024
Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Natural Sciences, West Kazakhstan Marat Ospanov Medical University, Aktobe, Kazakhstan. Electronic address:
Addressing mandibular defects poses a significant challenge in maxillofacial surgery. Recent advancements have led to the development of various biomimetic composite scaffolds aimed at facilitating mandibular defect reconstruction. This study aimed to assess the regenerative potential of a novel composite scaffold consisting of polylactic acid (PLA), hydroxyapatite nanoparticles (n-HA), gelatin, hesperidin, and human dental pulp stem cells (DPSCs) in a rat model of mandibular bone defect.
View Article and Find Full Text PDFAnn Ital Chir
December 2024
Department of Orthodontics, Dental Disease Prevention and Treatment Institute of Huangpu District, 200002 Shanghai, China.
Aim: Class II Division I malocclusion is common in pediatric orthodontics, and is often associated with malocclusion and poor muscle functionality. However, research on post-treatment changes in maxillomandibular dimensions, excluding normal development influences, is limited. Therefore, this study aimed to investigate the effects of Myobrace® appliance and targeted muscle functional training on maxillomandibular dimensions in children with Class II Division I malocclusion, compared to directed oral muscle training alone.
View Article and Find Full Text PDFShanghai 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.
J Orofac Orthop
December 2024
Department of Orthodontics, Saarland University, 66424, Homburg/Saar, Germany.
Background And Aim: Treatment effects of a combined rapid maxillary expansion (RME) and Delaire facemask (DFM) therapy have so far only been scientifically investigated through cephalometric analyses. The combination of cephalometric, dental cast and cone-beam computed tomography (CBCT) scan analysis was not yet used for investigating morphologic changes of the tooth-bearing palate. The aim of the present study was to determine whether patient age at treatment begin has an influence upon palatal length changes after RME/DFM therapy, and to what extent transverse palatal sutures contribute to these.
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