The shaping effects of three nickel-titanium rotary instruments on preparing curved canals in posterior teeth / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 333-335, 2002.
Artigo
em Inglês
| WPRIM
| ID: wpr-347383
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the shaping effects of three nickel-titanium rotary instruments on preparing curved canals in posterior teeth.</p><p><b>METHODS</b>64 curved mesial canals of extracted lower molars, embedded in the Branmante models, were randomly assigned to four groups (1) Flexofile; (2) LightSpeed; (3) ProFile; (4) Qantec SC. Apical preparation was carried out till size 30. The area of dentine removal, least remaining dentine thickness and transportation of canal center were measured.</p><p><b>RESULTS</b>Flexofile resulted in more dentine removal and canal center transportation than LightSpeed and ProFile (P < 0.05) at the apical and mid-root levels. In the mid-root sections, Flexofile left the thinnest dental wall in the distal aspect; 87% of the canal centers in the Flexofile group were transported in a distal direction as compared with one third in other groups.</p><p><b>CONCLUSIONS</b>LightSpeed and ProFile exhibited better shaping ability than Flexofile in preparing curved canals.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Padrões de Referência
/
Titânio
/
Preparo de Canal Radicular
/
Ligas Dentárias
/
Instrumentos Odontológicos
/
Dente Molar
/
Níquel
Limite:
Humanos
Idioma:
Inglês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2002
Tipo de documento:
Artigo
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