Objectives: This prospective clinical trial aimed to examine the predictability of maxillary canine transplantation as compared to biological canine eruption. Additional objectives were to examine hard and soft tissue outcomes, including aesthetic outcome compared to outcomes with the contralateral canines.
Settings And Sample Population: The sample comprised 17 consecutively transplanted maxillary canines in 17 patients (mean age at surgery, 18 years; range, 11-29 years). Minimal follow-up time was 12 months post-transplantation. Clinical and radiographic parameters were recorded for the transplanted and contralateral canines, showing a natural eruption pattern.
Material And Methods: The Maxillary Canine Aesthetic Index (MCAI) and the Autotransplanted Maxillary Canine Radiological Index (AMCRI) were scored for all upper canines. Successful transplantation was considered as the absence of pathology during intermittent clinical and radiographic controls and a good-to-excellent outcome compared to the contralateral biological erupted canine, as defined by the MCAI and AMCRI.
Results: The mean follow-up period was 28 months (±9; range, 12-40 months). The overall survival rate was 100%, and the success rate reached 68% at 1 year post-operatively. Significant predictors of success were the extra-oral time during transplantation, amount of damage to the root surface, quality of surrounding tissues and immediate post-operative oral hygiene.
Conclusion: Standardized measurements demonstrated clinically satisfactory outcomes with maxillary canine autotransplantation compared to outcomes with the contralateral canine during 1-3 years of follow-up. The potential predictors of success identified here should be confirmed with long-term follow-up studies.
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http://dx.doi.org/10.1111/ocr.12422 | DOI Listing |
A 10.2-year-old girl, accompanied by her parents, came to the Department of Jaw Orthopedics at the Clinic for Dental Medicine. Based on the initial orthopantomography, multiple tooth impactions were diagnosed.
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January 2025
Nathaniel C Lawson, DDS, PhD, director of Master of Science in Dental Biomaterials program and associate professor, Department of Clinical and Community Sciences, University of Alabama at Birmingham School of Dentistry, Birmingham, AL, USA.
Objective: This study aimed to assess the fracture resistance of chairside computer assisted design and computer assisted manufacturing (CAD-CAM) lithium disilicate partial and full-coverage crowns and veneers for maxillary canines.
Methods And Materials: Forty-eight restorations for maxillary right canines (12 per group) were designed as follows: (1) partial crown with finish line in the upper middle third; (2) partial crown with finish line in the lower middle third; (3) traditional labial veneer; and (4) traditional full-coverage crown. Restorations were fabricated out of lithium disilicate (Amber Mill, Hassbio) using a chairside CAD-CAM system (Cerec Dentsply Sirona).
Clin Oral Investig
January 2025
Orthodontic Section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
Introduction: This randomized clinical trial compared arch dimensional changes, dentoskeletal changes, and the rate of overbite correction in deep bite adults treated with fixed appliances and either maxillary incisor bite turbos (IBT) or canine bite turbos (CBT).
Materials And Methods: Forty-six deep bite subjects treated with fixed appliances were randomized into IBT (n = 23) and CBT (n = 23) groups. Changes in intercanine width (ICW), arch height (AH), and Little's Irregularity Index (LII) were analyzed from before treatment (T) to 3 months after aligning with 0.
J Craniofac Surg
January 2025
Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina.
Background: Children with cleft lip ± palate (CL/P) may undergo nasoalveolar molding (NAM) before surgery to achieve arch alignment and tension-free closure, yet the endpoint of arch dimensions has not been defined.
Objective: To characterize the size and shape of infant palates using anatomic landmarks on magnetic resonance imaging in infants without CL/P.
Methods: Magnetic resonance imaging of infants without cleft palate younger than 3 months were reviewed and 13 measurements were taken to define palatal shape: distance between incisive foramen (IF) and incisors (IN), IF and middle of canines (MOC), between MOCs, between first molars (FM), 2 depth and 4 angle measurements.
J Prosthodont Res
January 2025
Department of Masticatory Function and Health Science, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
Purpose: To compare the stress distribution in loaded zirconia resin-bonded fixed dental prostheses (RBFDPs) and periodontal tissue using finite element analysis, considering reduced alveolar bone levels and the number of retainers.
Methods: A human skull was micro-CT scanned. Three framework designs were tested: a 2-unit RBFDP using the maxillary left central incisor (#21) as an abutment, another using a canine (#23), and a 3-unit RBFDP using both #21 and #23.
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