Using digital image correlation to measure displacement and strain during involving distal movement of anterior teeth with clear aligner.
Dent Mater J
; 42(4): 493-500, 2023 Aug 02.
Article
em En
| MEDLINE
| ID: mdl-37121736
ABSTRACT
To investigate methods to suppress the bowing effects of lingual inclination and anterior tooth extrusion, digital image correlation (DIC) was used to evaluate aligner displacement in three-dimensions through comparing the distal movement of six and four anterior teeth. Computed tomography scans were used to measure aligner thickness and shape. Based on displacement direction and magnitude, a desirable deformation mode with minimal lingual inclination and extrusion was observed during distal movement of four anterior teeth. The aligner had a rigid "constriction zone" between the lateral incisor and the canine, facilitating control localized to the anterior teeth and minimizing the reaction of the molars. The mechanical behavior of aligners was greatly affected by the method of anterior teeth movement and the shape of aligners. DIC-based displacement measurements are useful in investigating correction directionality.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aparelhos Ortodônticos Removíveis
/
Incisivo
Idioma:
En
Revista:
Dent Mater J
Ano de publicação:
2023
Tipo de documento:
Article