Homa Farhadifard; Mohammad Ali Keshvad; Aryan Hesamarefi; Elahe Soltan Mohammadi
Abstract
Self-ligating brackets are ligature-less brackets with the mechanical device built into them to close edgewise slot. It was claimed that self-ligating brackets (SLBs) have advantages over conventional-ligating brackets brackets (CLBs). The most claimed advantageous feature is reduced friction between ...
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Self-ligating brackets are ligature-less brackets with the mechanical device built into them to close edgewise slot. It was claimed that self-ligating brackets (SLBs) have advantages over conventional-ligating brackets brackets (CLBs). The most claimed advantageous feature is reduced friction between the archwire and the bracket and full archwire engagement, resulting in faster alignment and space closure. Greater arch expansion with less incisor proclination, also faster ligation, reduced number of visits and less pain is mentioned as the beneficial features of SLBs in different articles. In this review article, we compared SLBs with CBs in aspect of resistance to sliding, speed of archwire ligation, quality of alignment and amount of pain during treatment base on the most recent articles published in literature. We concluded that although self-ligating brackets are proved to have some advantages over conventional brackets, but more studies are needed to discard doubts about using them, routinely.
Hamed Mahmoud Hashemi; Manouchehr Rahmati Kamel; Siamak Hemmatpour
Abstract
The purpose of this review was to address the question whether mandibular distractionostegenesis (DO) has any effect on temporomandibular joint (TMJ). A literature survey from the pub Med database used the medical subject heading terms osteodistraction, T.M.J and 13 articles written in English were obtained. ...
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The purpose of this review was to address the question whether mandibular distractionostegenesis (DO) has any effect on temporomandibular joint (TMJ). A literature survey from the pub Med database used the medical subject heading terms osteodistraction, T.M.J and 13 articles written in English were obtained. mandibular DO may accompany with some resorption & remodeling of TMJ but apparently if correctly used produces less TMJ problems compared with conventional mandibular osteotomies and even according to some studies, It is beneficial to structure and position of TMJ. This technique has been proposed for advancement of mandible in patients with TMJ problem and for ramus lengthening for prevention of relaps and TMJ problems. Mandibular Do can be a valuable technique for reconstruction of ramus and condyle in severe mandibular deformities such as TMJ ankylosis and hemifacial microsomia. Transverse distraction of mandible may accompany with TMJ problems and should be used cautiously.