Stability of the miniscrew implant during healing period / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 226-227, 2006.
Artigo
em Chinês
| WPRIM
| ID: wpr-303383
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the stability of mini-screw implant during different healing periods in the unloaded conditions.</p><p><b>METHODS</b>Sixty titanium mini-screws were used in this study. A total of 10 New Zealand white rabbits were randomly divided into 5 groups according to different healing periods. The stability was evaluated biomechanically at different time points. One-way ANOVA and correlation analyses were used.</p><p><b>RESULTS</b>(1) After 4 weeks and 8 weeks of healing, maximal pull-out loads were (179.68 +/- 24.65) N and (212.06 +/- 42.51) N, respectively. The maximal torques were (0.47 +/- 0.13) N.m and (0.61 +/- 0.16) N.m, respectively. (2) Significant difference in maximal torque was found between 4 week and 8 week healing groups. (3) Both reverse torque and pull-out load significantly correlated with healing time.</p><p><b>CONCLUSIONS</b>Fourth-week is a critical time point in the progress of osseointegration. Within 8 weeks of healing process, the stability of implant was significantly correlated with healing time.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Fisiologia
/
Estresse Mecânico
/
Fatores de Tempo
/
Titânio
/
Cicatrização
/
Parafusos Ósseos
/
Implantes Dentários
/
Osseointegração
/
Torque
/
Implantação Dentária Endóssea
Limite:
Animais
Idioma:
Chinês
Revista:
Chinese Journal of Stomatology
Ano de publicação:
2006
Tipo de documento:
Artigo
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