Results 71 to 80 of about 209,614 (261)

Comparative analysis of mandibular changes after orthodontic treatment with and without extraction of four premolars: A digital cephalometric study

open access: yesActa Marisiensis - Seria Medica, 2022
Objective: To compare and evaluate the cephalometric hard and soft tissue changes of mandible after orthodontic treatment with and without extraction of four first premolar.
Alex Anithab   +5 more
doaj   +1 more source

Automatic Tooth Arrangement with Joint Features of Point and Mesh Representations via Diffusion Probabilistic Models [PDF]

open access: yesarXiv, 2023
Tooth arrangement is a crucial step in orthodontics treatment, in which aligning teeth could improve overall well-being, enhance facial aesthetics, and boost self-confidence. To improve the efficiency of tooth arrangement and minimize errors associated with unreasonable designs by inexperienced practitioners, some deep learning-based tooth arrangement ...
arxiv  

Postretention stability after orthodontic closure of maxillary interincisor diastemas

open access: yesJournal of Applied Oral Science, 2014
Anterior spaces may interfere with smile attractiveness and compromise dentofacial harmony. They are among the most frequent reasons why patients seek orthodontic treatment.
Juliana Fernandes de MORAIS   +4 more
doaj   +1 more source

Automatic Recognition of Landmarks on Digital Dental Models [PDF]

open access: yesarXiv, 2020
Fundamental to improving Dental and Orthodontic treatments is the ability to quantitatively assess and cross-compare their outcomes. Such assessments require calculating distances and angles from 3D coordinates of dental landmarks. The costly and repetitive task of hand-labelling dental models impedes studies requiring large sample size to penetrate ...
arxiv  

Do alcoholic beverages interfere in the force of orthodontic elastics?

open access: yesRevista de Odontologia da UNESP
Objective: To evaluate the effects of different alcoholic beverages on the decline in force of orthodontic elastics. Material and method: In a laboratory study, 6 groups of alcoholic beverages were tested.
Matheus Melo PITHON   +6 more
doaj   +1 more source

Mapping of proximal enamel thickness in permanent teeth

open access: yesBrazilian Journal of Oral Sciences, 2015
Aim: Knowledge of enamel thickness is relevant to perform stripping during orthodontic treatment. Thus, proximal enamel measurements of human permanent teeth were compared in this study.
Flávio Vellini Ferreira   +3 more
doaj   +1 more source

Comparison of conventional impression making and intraoral scanning for the study of unilateral cleft lip and palate

open access: yesCongenital Anomalies, Volume 63, Issue 1, Page 16-22, January 2023., 2023
Abstract Patients with cleft lip and palate (CLP) encounter various problems, including disorders related to feeding, esthetics, and pronunciation. We compared two impression methods, conventional impression making and intraoral scanning, to study unilateral cleft lip and palate (UCLP).
Tomoyo Okazaki   +2 more
wiley   +1 more source

A simulator for maxillo-facial surgery integrating cephalometry and orthodontia [PDF]

open access: yesComputer Aided Surgery 5(3) (2000) 156-165, 2006
Objectives : This paper presents a new simulator for maxillo-facial surgery, that gathers the dental and the maxillo-facial analyses together into a single computer-assisted procedure. The idea is first to propose a repositioning of the maxilla, via the introduction of a 3D cephalometry, applied to a 3D virtual model of the patient's skull.
arxiv  

Two‐piece zirconia implants in the posterior mandible and maxilla: A cohort study with a follow‐up period of 9 years

open access: yesClinical Oral Implants Research, Volume 33, Issue 12, Page 1233-1244, December 2022., 2022
Abstract Objectives Long‐term follow‐up observations of zirconia implants are rare. This study aimed at evaluating the clinical performance of two‐piece zirconia implants in the posterior jaws over 9 years. Materials and Methods Sixty partially edentulous patients were treated with two‐piece zirconia implants.
Giulia Brunello   +5 more
wiley   +1 more source

Bacterial endotoxin adhesion to different types of orthodontic adhesives

open access: yesJournal of Applied Oral Science
Bacterial endotoxin (LPS) adhesion to orthodontic brackets is a known contributing factor to inflammation of the adjacent gingival tissues. Objective The aim of this study was to assess whether LPS adheres to orthodontic adhesive systems, comparing two
Priscilla Coutinho ROMUALDO   +7 more
doaj   +1 more source

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