2,857 results match your criteria: "Dental Displaced Tooth"

Background: Odontogenic cysts of the jaws are pathologies that require timely recognition and management. The initial diagnosis is based on clinical and radiographic appearance and dental history. A variety of surgical treatments are used for odontogenic keratocyst (OKC) depending on the clinical and radiographic presentation.

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Maxillary protraction anchored on miniplates versus miniscrews: three-dimensional dentoskeletal comparison.

Eur J Orthod

December 2024

Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, 1011 N University Ave, Ann Arbor, MI 48109, United States.

Objective: This retrospective study aimed to compare the three-dimensional (3D) outcomes of the novel miniscrew-anchored maxillary protraction (MAMP) therapy and the bone-anchored maxillary protraction (BAMP) therapy.

Methods: The sample comprised growing patients with skeletal Class III malocclusion treated with two skeletal anchored maxillary protraction protocols. The MAMP group comprised 22 patients (9 female, 13 male; 10.

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Dental avulsion, the complete displacement of a tooth from its socket, presents a significant challenge in dental practice due to its potential impact on aesthetics, function, and child well-being. This case presentation, reports the management of a traumatic dental avulsion in a 11-year-old male patient, detailing the clinical presentation, diagnostic process, treatment protocol, and follow-up outcomes. The case underscores the importance of prompt intervention for the avulsed tooth, and timely replantation to optimize treatment outcomes.

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Facemask Application With Fixed Orthodontic Appliances: 3-Dimensional Finite Element Stress Analysis.

J Stomatol Oral Maxillofac Surg

December 2024

Gazi University, Faculty of Dentistry, Department of Orthodontics, Ankara, Turkiye. Electronic address:

Introduction: Facemask(FM) is an orthopedic appliance with extraoral and intraoral anchoring units used in treatment of maxillary retrognathia. Aim of this study was to assess effects of tooth-supported FM application via fixed orthodontic appliances on craniofacial structures with finite element stress analysis.

Materials And Methods: A model was constructed on maxillary teeth with Roth brackets (0.

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Three-dimensional finite element analysis of maxillary molar distalization treated with clear aligners combined with different traction methods.

Prog Orthod

December 2024

State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.

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Background: Computer-aided design/manufacturing (CAD/CAM) materials are widely used in resin-bonded fixed partial dentures (RBFPDs), but their suitability across different designs has not been fully assessed. This study compares the stress distribution and failure probability of mandibular incisors restored by RBFPDs with various CAD/CAM materials.

Materials And Methods: Finite-element models of single- and double-ended RBFPDs were created using cone-beam computed tomography (CBCT) data.

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This pilot two-arm, parallel group, randomized clinical trial aimed to compare the efficacy of tooth movement and patient comfort during orthodontic leveling and alignment with the BRIUS™ lingual system (BR) versus labial full fixed appliances (LFFAs). Patients in the permanent dentition with mild to moderate crowding were recruited at the University at Buffalo and randomly assigned into the BR group (seven patients) or LFFAs group (six patients). The patients' dental arches were scanned before bonding (T1) and after 18 weeks (T2).

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Mechanical Effect of an Implant Under Denture Base in Implant-Supported Distal Free-End Removable Partial Dentures.

Dent J (Basel)

November 2024

Department of Oral Functional Prosthodontics, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University, Kita13, Nishi7, Kita-ku, Sapporo 060-8586, Japan.

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Background: Reconstruction of maxillofacial defects is challenging due to the region's complex anatomy. During the COVID-19 era, many patients lost their maxilla and chewing efficiency as a result of Mucormycosis. In such cases, custom-designed implants offer a graftless solution for seemingly hopeless situations.

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Aim: The aim of this study was to evaluate the expression levels of vascular endothelial growth factor (VEGF), Peroxiredoxin 1 (PRX1), glucose transporter 1 (GLUT1) and type I collagen (COL1) and the rate of tooth movement comparing 3 accelerated tooth movement (ATM) methods: Corticopuncture (CP), photobiomodulation (PBM) and the combined technique (CP + PBM) on days 1, 3, 7 and 14.

Methods: Orthodontic tooth movement was induced in 24 male Wistar rats. CP procedure included three perforations: two in the palate and one mesial to the molars.

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  • The study aimed to evaluate and compare the effectiveness of Biodentine and Portland cement in repairing mid-root perforations in single-rooted mandibular premolars by analyzing stress distribution and fracture resistance.
  • Using finite element analysis (FEA) and a physical testing approach, researchers created 3D models of various tooth conditions to assess how each repair method performed under stress.
  • Results showed that Biodentine and Portland cement had similar stress distributions and that the highest stress was observed in the endodontically treated teeth, indicating that both materials were effective in ensuring structural integrity after repair.
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Periodontal phenotype modification in surgically facilitated orthodontics: A case report.

Clin Adv Periodontics

November 2024

Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA.

Background: Orthodontic treatment in adults with thin periodontal phenotype presents challenges such as lengthy treatment time and increased risk for gingival recessions. In this case, surgically facilitated orthodontic treatment (SFOT) was proposed to accelerate orthodontic tooth movement while modifying the periodontal phenotype.

Methods: An orthodontic patient was referred for periodontal evaluation of lower anterior teeth, which presented a thin gingival phenotype and bone dehiscence.

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  • Efficient treatment for patients with replanted teeth is challenging due to damage to periodontal tissue; this study evaluates the effectiveness of enamel matrix derivative (EMD) in improving clinical outcomes after replantation.
  • Analysis of 375 replanted teeth from 329 patients revealed that EMD did not significantly enhance normal periodontal ligament (PDL) healing but was associated with a lower risk of tooth extraction and improved survival rates in teeth with root resorption.
  • The study concludes that while EMD may not increase normal PDL healing, it could help prevent tooth loss in early resorption cases; further high-quality research is needed to confirm these findings.
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Aims: This work examines and describes dental health among people seeking asylum and refugees (PSAR) who are evaluated by the Respond service. This includes access to and use of oral health products, access to dental care, and experience of dental pain.

Materials And Methods: The Respond service pilot offered holistic health assessments to PSAR in temporary accommodation within North Central London between July 2021 and March 2023.

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  • The study aims to explore how different shapes of attachments on maxillary anterior teeth affect tooth movement when using clear aligners, looking to offer valuable information for orthodontic clinical design.
  • Various attachment shapes (no attachment, rectangular, wedge-shaped, and curved arc) were analyzed using 3D finite element simulations to observe their biomechanical effects on lateral incisors and other dental structures under load.
  • Results indicated that rectangular and curved arc attachments enhance coronal and vertical control during tooth movement, showing that the shape of the attachment impacts efficiency and distribution of stress on the periodontal ligament significantly.
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Background: An adequate amount of water is necessary to maintain the shape of collagen fibrils while excess water hampers dentin-resin bonding. Air-drying lacks control while blot-drying displaces water in a controlled manner. Solvents in adhesives affect the configuration of collagen fibrils.

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  • The study aimed to evaluate how different shapes and sizes of attachments affect tooth movement in clear aligner therapy, using computer models of human canines.
  • Finite element analysis was applied to assess stress and displacement of these attachments under a constant force during simulated tooth movements.
  • Results revealed that the geometry and size of the attachments significantly influence tooth movement, with specific shapes excelling in different types of movements, suggesting that orthodontists can enhance treatment efficiency with better-designed attachments.
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Impact of botulinum toxin type A on tooth movement and bone remodeling in male Wistar rats.

Arch Oral Biol

January 2025

Graduate Program in Dentistry, Orthodontics, Pontifícia Universidade Católica do Paraná, School of Medicine and Life Sciences, Rua Imaculada Conceição, 1155, Prado Velho, Curitiba, Paraná 80215-901, Brazil. Electronic address:

Objective: We evaluated whether the use of botulinum neurotoxin type A (BTX-A) in masticatory muscles influences tooth movement and bone remodeling.

Design: Seventy-seven male Wistar rats were allocated to the groups: S - Saline (n=20); SM - Saline with movement (n=20); BT - Botulinum toxin (n=18); BTM - Botulinum toxin with movement (n=19). On day 1, 0.

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