China
Africa
Explore chapters and articles related to this topic
Head and neck
Published in Tor Wo Chiu, Stone’s Plastic Surgery Facts, 2018
Selected fractures can be adequately treated by conservative means; a simple protocol may be as follows, if there is: No malocclusion – soft diet and analgesia (25%) observe for developing malocclusion, which then requires IMF (with elastics, see below).Malocclusion – closed reduction (IMF, ~50%) except for lateral anterior open bite, which probably requires ORIF, especially if displaced, if bilateral or if there are panfacial fractures (see below).
Temporomandibular Joint Disorders
Published in John C Watkinson, Raymond W Clarke, Terry M Jones, Vinidh Paleri, Nicholas White, Tim Woolford, Head & Neck Surgery Plastic Surgery, 2018
Initial management is often with mobilization and analgesia as this injury can affect the secondary growth plate in the condyle, causing undergrowth, overgrowth or fusion of the joint surfaces (ankylosis). Intermaxillary fixation (holding the teeth together with elastics or wires) for a 2–4-week period may be considered where the occlusion is deranged. Occasionally, internal fixation may be considered with resorbable plates.
Intermaxillary Fixation Techniques
Published in Jeffrey R. Marcus, Detlev Erdmann, Eduardo D. Rodriguez, Essentials of CRANIOMAXILLOFACIAL TRAUMA, 2014
Jeffrey R. Marcus, Mark D. Walsh
A variety of techniques allow application of IMF. Most rely on a combination of wire, screw, or apparatus to be applied to the maxilla and mandible independently, and then secured to one another. (The methods are described in detail later in this chapter.) The most common method currently used employs the Erich arch bar, which is wired to the dentition of each arch separately (Fig. 7-2, A). Opposing tabs on each arch bar allow the surgeon to apply a wire loop at two or more sites to bind the jaws together in proper occlusion. The snug wire loops provide effective immobilization; this is called rigid IMF(Fig. 7-2, B). Rigid IMF is needed for fractures F being treated by IMF alone. Some micromovement occurs at the fracture site, but, when stable, the construct allows fracture healing after formation of an initial callus. The opposing arch bars also allow the application of elastic bands to draw the arches together into occlusion; this is called elastic IMF (Fig. 7-2, C). The strength of elastic IMF depends on the number of bands used. If one elastic band is used per side, the tension gently guides the arches together (guiding elastics). In contrast, if three or four bands are used per side, the effect is similar to rigid IMF.
Successful and stable orthodontic camouflage of a mandibular asymmetry with sliding jigs
Published in Journal of Orthodontics, 2018
Dauro Douglas Oliveira, Bruno Franco de Oliveira, Carolina Morsani Mordente, Gabriela Martins Godoy, Rodrigo Villamarim Soares, Paulo Isaías Seraidarian
Since the patient refused the use of mini-plates or mini-implants, the treatment was conducted with the use of SJ and intermaxillary elastics. This mechanism was described years ago (Wallshein 1974), promote more efficient forces to move individual tooth, producing potentially fewer side effects than when only intermaxillary elastics are used. Although a greater office time may be required for their manufacture, prefabricated alternatives are available in the market and may eliminate this requirement. Nevertheless, patient’s cooperation is fundamental and should be carefully discussed and considered for its use. The significant lower costs involved with the use of SJ are a major advantage of this type of mechanics when compared to those related to TADs and orthognathic surgeries. Moreover, the knowledge and application of adequate and well-controlled orthodontic mechanics completely overcame the advantages of using TADs. The satisfactory functional results obtained showed that the unsuitability for using TADs was fully overcome.
Evaluation of latex and non-latex intermaxillary elastics strength degradation when submitted to the use of chlorhexidine
Published in Orthodontic Waves, 2021
Mauro Macedo, Giovana Cherubini Venezian, José Guilherme Neves, Vívian Fernandes Furletti de Goés, Mário Vedovello-Filho, Lourenço Correr-Sobrinho, Ana Rosa Costa
Orthodontic elastics have been used by orthodontists for their practicality, effectiveness, low cost, and comfort for patients [1]. Orthodontic elastics may be latex (natural rubber) or synthetic rubber (non-latex), thus presenting different characteristics. Latex elastic has high flexibility, low cost and the ability to return to their original dimensions after deformation, compared to non-latex elastic [2]. On the other hand, due to allergic reaction to latex, synthetic elastic or plastic elastomers (without latex) have often been used in patients who are allergic to latex, in order to maintain their mechanical properties [3–5].