Because of the quadrangular configuration of the plates, they provided good stability and resistance to torsional forces. Author information Copyright and License information Disclaimer. Review of 39 cases. Postoperative OPG showing reduction and fixation of right parasymphysis fracture with 2. In Group II patients, fixation of conventional 2-D miniplates was done along the osteosynthesis lines as described by Champy. Also, as the symphysis fractures are under greater degree of torsional strain than any other area of the mandible, 3-D plates provide higher stability in this region. Farmand and Dupoirieux[ 6 ] presented 3-D plates with quadrangular shape formed by joining two mini-plates with interconnecting crossbars.
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Footnotes Source of Support: Exclusion criteria for study were comminuted, malunited, and infected fractures as well as mandibular coronoid and condylar fractures. In Group I patients, fixation of the 3-D plates was done in the following manner: The multi-functional display device may include a display for displaying broadcast programs or data, a network interface configured to receive event information associated with a social network service SNS account for an individual or entity, a storage device configured to store at least one channel number and at least one SNS account information assigned to the at least one channel number, and a controller for controlling the multi-functional display device.
Fixation of mandibular angle fractures with a 2. Compression plates rigidly fixed the fractured bone segments sufficiently to prevent inter-fragmentary movement and provide healing by primary intention.
Kruger E, Schilli W, editors. Table 2 Gender distribution of patients. Preoperative OPG show right parasymphysis fracture between right lateral incisior and canine with fracture line runs downward and forward. Postoperative intermaxillary fixation was avoided and done only if required or when occlusion was deranged.
It consisted of mono-cortical, juxta alveolar, and subapical osteosynthesis without compression and bipi fixation using miniaturized malleable plates. Table 3 Distribution of fracture site, favorability of fracture site, methods of fixation of fracture site.
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Also, 2-mm, 4-hole with gap conventional 2-D and 6-hole with gap 3-D stainless steel miniplates were used. This article has been cited by other articles in PMC.
In the body region, difference was not significant, average time of 7 min more was taken by 3-D plates; whereas, in the symphysis and parasymphysis region, 20 min more was taken for 3-D plate fixation than for 2-D miniplates.
National Center for Biotechnology InformationU. The only probable limitations of 3-dimensional plates were excessive implant material due to the extra vertical bars incorporated for countering the torque forces. According to Champy, when only one linear conventional plate is applied at the external oblique ridge in cases of mandibular angle fracture, torsional and bending forces usually cause movement along the axis of the plate with bucco-lingual splaying and gap formation at the inferior border, respectively.
Conventional 2.0 mm miniplates versus 3-D plates in mandibular fractures
In the angle region where horizontal and vertical rami of mandible meet and where powerful elevator muscles are attached to the ramus, strong distractive forces are created; therefore, to counteract these forces, a strong fixation device is required. Concept of rigid fixation: An analysis of factors contributing to bi;in complications.
Also, an infection rate of 6. Use of straight and curved 3-dimensional titanium miniplates for 33d fixation of mandibular angle. J Oral Maxillofac Surg.
This is in accordance with the study by Bormann et al [ 7 ] [ Table 1 ]. Rigid internal fixation of fracture in angular region of mandible: This male dominance was also reported by Haug et al.
23 3D images for Bipin
One patient treated by 3-dimensional plates had tooth damage. Duration of surgery was nipin from incision to closure of wound. This was a prospective study consisting of a sample size of 28 patients 18 males and 10 females with undisplaced as well as displaced mandible fractures conducted at Govt.
Preoperative photograph of patient with right parasymphysis fracture between right lateral incisior and canine showing anterior and left-posterior open bite. Among patients in Group II, in 1 patient, there bipln intraoral exposure of plate and intraoral pus discharge at left lower-third molar region. Five-year retrospective study of mandibular fractures in Freiburg, Germany: Based on the above, it can be concluded that, to minimize the rate of postoperative complications, for fractures of symphysis, displaced parasymphysis and angle and bilateral mandible fractures, 3-D plates could be a better option than conventional 2-mm miniplates.
Also, 3-D plates, because of a box-like configuration, provide rigid fixation of fractures that prevent bucco-lingual splaying and gap formation at the fracture site and subsequent occlusal discrepancy; this is the advantage of 3-D miniplates over 2-D miniplates.