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Brazilian Journal of Craniomaxillofacial Surgery
Revista Oficial da Associação Brasileira de Cirurgia Crânio-maxilo-facial.

 Volume 7
Number 1   June 2004
 
TÍTULO
THE POSITION OF THE TEMPOROMANDIBULAR JOINT ARTICULAR DISC IN PROGNATHIC PATIENTS SUBMITTED TO SURGICAL CORRECTION - MAGNETIC RESONANCE ASSESSMENT
AUTOR
Elisa Cruz, DS1; Jacob Szenfeld, MD, PhDZ; Angela Borri Wolosker, MD3; Sergio Luiz de Mi
  The purpose of this study was to assess the position of the temporomandibular joint articular disc through magnetic resonance imaging in patients with prognathism submitted to orthognathic surgev. Twenty temporomandibularjoints of 10 prognathic patients were assessed by magnetic resonance, with oblique sagittal TI planes and mouth open and closed, and with oblique sagittal T2planes and mouth closed. The patients were assessed before and affer surgery for the comparison of articular disc position. All patients were submitted to sagittal split osteotomy of the mandible and were assessed 6 months postoperatively (at minimum). In the preoperative assessments, eight joints presented normally positioned discs, 10 presented anterior disc displacement with reduction, and two had anterior disc displacement without reduction. In the postoperative assessments, the disc was normally positioned in eight join6 10 presented anterior disc displacement with reduction, and two presented anterior disc displacement without reduction. In conclusion, 80% of the articular discs maintained their preoperative position, 10% improved from anterior disc displacement with reduction to a normal position, and 10% presented anterior disc displacement with reduction in contrast with an orignally normally positioned disc.
KEY WORDS
Temporomandibular joint; articular disc, temporomandibular; orthodonticsc, correctiv oral surgical procedures; magnetic resonance imagingl
TÍTULO
BODY IMAGE IN FACIAL TRAUMA PATIENTS - A STUDY BASED ON SELF-EVALUATION
AUTOR
Maria Teresa Sarnpaio Jordlo de Ca~alho';S andra Farago Magrini, MScl; Dov Charles Goldenberg,
  The purpose of the present study was to investigate body image through self-evaluation in patients presenting facial trauma and being followed at the Division of Plastic Surgery; Hospital das Clinicas, Universidade de SBo Paulo, Brazil. Twenty patients (males and females) with agesranging from 18 to 52 years were assessed. Facial trauma affected the patients'lives both physically and psychologically, making social readjustment more dificult.
Body scheme alterations led to changes in body image. Patients showed high expectations in relation to reconstructive procedures; this situation contributed to maintain the high level of anxiety obsewed prior to surgery
KEY WORDS
Body image; facial trauma; plastic surgery; anxiety
TÍTULO
COMPARATIVE STUDY OF TISSUE EXTRACTION IN ALVEOLAR BONE GRAFTS
AUTOR
Wagner Lopes da Silva Junior, MD'; Celso Luiz Buzzo, MD2; JoHo Henrique Modolo, MD'; Rafael de Campos Ferreira Basso, MD3; Andre Luiz Petineli Reda, MD3; Rafael Guiselli Lopes, MD'; Fabiana
Duarte Mendes, MD4; Tatiana Novaes, MD
  Currently: several centers of craniofacial surgery advocate the use of secondary alveolar tissue grafts forpatients aged 9 to 11 years, since this would be the most appropate time in tfe for tooth migration and eruption. Alveolar bone (sponge bone) is the preferred tissue for the performance of the gmft, andone ofthe main donorsites is the iliac crest,
which offers a great amount oftissue. A study was canied out at our institution (SOBRAPAR) to compare two surgical techniques used to remove bone tissue from the iliac west: one via an osteotome and the other via a bone extractor developed at our institution. Both procedures were compared in terms of operating time, intraoperat~veh emohage,
size of the scar; postoperative duration of pain andparesthesia. The iliac crest revealed to be an excellent donor site of sponge bone both in quantiiy and qualiiy me use of the bone extractorrevealed to be practical, efficient, safe and associated with befferfum7onaland aestheticresults when cornparedto the usualslugicaltechnique (with an osteotome).
KEY WORDS
Bone graft; tissue; craniofacial surgery
TÍTULO
HYPERBARIC OXYGEN THERAPY IN MANDIBULAR BONE LOSS RECONSTRUCTION
AUTOR
Sylvio Luiz Costa de Moraes, MD, DDS, FAO-1'; Luiz Francisco Souza da Fontoura, MD, DDSZ; Alexandre Maurity de Paula Afonso, DDS3; Alexandre A. de Oliveira, MD3; Roberto Gomes dos Santos, DDS3; Ricardo Pereira Mattos, DDS3; Williams Gil Rodriguez,
  This article aims at describing the authors'experience with hyperbaric oxygen therapy (HBOn as an important resource in mandibularbone loss reconstruction, mainly in cases that require correction of great defects caused by resections camed out to treat benign but highly invasive diseases. The protocol for the use of oxygen under
pressure is presented and the indications and limitations of HBOT are discussed.
KEY WORDS
Mandible, facial reconstruction, hypehalie oxygen therapy
TÍTULO
APPLICATION OF BIODEGRADABLE MATERIALS IN PEDIATRIC CRANIOFACIAL SURGERY
AUTOR
Clarissa Leite Turrer, MD'; Ricardo Lopes Cruz
  Biodegradable materials, mainly polylactide and polygycolide polymers and copolymers, are currently used in craniomaxillofacial surgery as fixation materials. Several research groups have shown that such materials adequately work in the fixation of osteotomies and fractures in the craniofacial skeleton. The main advantage of these materials in pediatric craniofacial surgery is related to the grovdh of the facial bones. This article presents an overview of the development of biodegradable materials, their characteristics and different applications in
craniofacial surgery.
KEY WORDS
Absohable materials; pediatric craniofacial surgery; trauma; tumors; craniostenosis