Clinical modification in root correction phase in segmented arch technique.
The segmented arch technique uses the differential moment/force ratio in the anterior and posterior segments so that the extraction space in cases of critical anchorage can be closed with minimal or no anchorage loss. The objective of this article is to discuss the root correction phase, the force system involved, and the clinical problem of the tendency of space reopening during this phase. It also presents the use of a closed NiTi spring as a clinical alternative for this phase, concluding that this device can be used to avoid space reopening.
Alpha Smile Dentistry Courses and Research Center, Campinas, Brazil. hcamp@terra.com.br
Daniel Ianni
DI
Filho
Klaus Fernando Cardoso
KF
Bernardo
Adriana Prado
AP
Calheta
Eduardo Serpa
ES
Vieira
D001696:Biomechanical Phenomena; D003722:Dental Alloys; D003799:Dental Stress Analysis; D006801:Humans; D009532:Nickel; D052280:Orthodontic Anchorage Procedures; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances; D019516:Orthodontic Space Closure / Q000295:instrumentation* / Q000379:methods*; D055502:Secondary Prevention; D014025:Titanium; D014087:Tooth Movement Techniques / Q000295:instrumentation* / Q000379:methods; D014092:Tooth Root / Q000502:physiology*
D003722:Dental Alloys; C040654:titanium nickelide; D009532:Nickel; D014025:Titanium