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Treatment of congenital true bottom prognathia (micrognathia)
562 Free Papers—Poster Presentations prognathism. We planned a two stage procedure rather than bimaxillary orthognathic surgery. Following Le fort I osteotomy, intraoral distractors were correctly placed to the both sides of the maxilla since they had been previously adopted in the patient’s scull model. Maxilla was distracted for 15 days (0.5 mm × 2 per day). After a consolidation period, bilateral sagittal split osteotomy was performed to locate the mandible back to the desired position to maintain the occlusal relationship. Distractors were removed during the same operation. The postoperative period was uneventful, except the slight paresthesia and difficulty in mouth opening which disappeared within a couple of weeks. Conclusion: This combined orthognathic surgical procedures appear to be a good method for the treatment of the severe discrepancies, such as the mandibular prognathism in combination with hypoplastic maxilla, to prevent relapse. doi:10.1016/j.ijom.2009.03.577
P105 Treatment of congenital true bottom prognathia (micrognathia) A. Glinnik, I. Khomich ∗ , S. Khomich Department of Maxillofacial Surgery, Belarussian State Medical University, Minsk, Belarus
Background and Objectives: Surgical treatment of anomalies of development and deformations of jaws is done by various ways with use of own tissues, transplants and implants. We performed surgeries on the bottom jaws with their distal displacement. Methods: Before the surgery we performed roentgenography of skulls in two projections, anthropometrical measurements of the face. Plaster models of jaws were created on which the condition of occlusion was defined at supposed change of position of the mandible. Splints were placed on teeth of these patients. The intubation narcosis was performed through a nose cavity. One-stage bilateral slanting sliding osteotomy of branches of the mandible was performed, mandible body distal displacement with fixing it with splints and wire sutures, screws. Results: Patients with splinted mandible were observed for 30–40 days. Then splints were removed and the patients underwent physiotherapy. After the surgery the appearance of the face of all patients gradually changed, biting and food chewing
became possible for them. Teeth were arranging into normal occlusion. Conclusion: Considering good aesthetic result, creation of optimum functionality, relative simplicity and safety of performance of operations, we consider that this method is the most suitable for treatment. doi:10.1016/j.ijom.2009.03.578
P106 Hemimandibular hyperplasia—a case report H. Mahendra ∗ , M. Kohli, N. Sharma, L.C. Gupta Department of Oral and Maxillofacial Surgery, Saraswati Dental College and Hospital, Rajendra Nagar, Lucknow, Uttar Pradesh, India
Introduction: Obwegesser and Makek in 1986 differentiated hyperplasia of condyle into hemimandibular hyperplasia, hemimandibular elongation and condylar hyperplasia. Case Report: A case of a 22-year-old male presented at the Saraswati Dental College, Lucknow, India, with chief complaint of left side facial asymmetry was treated alone with lower border shaving of the mandible and repositioning the nerve, hence preserving the enlarged condylar head. Excellent aesthetic results were achieved. Conclusion: In hemimandibular hyperplasia generally orthognathic surgery like Le Fort I osteotomy, bilateral sagittal split osteotomy, genioplasty is done, but in this case since the smile of the patient was normal, only by doing lower border shaving of the mandible and repositioning the nerve, good results were achieved. doi:10.1016/j.ijom.2009.03.579
P107 Panorametry: a method for measurement of the mandible on panoramic radiographs E. Puricelli ∗ , D. Ponzoni, G.L. Martins, C.E. Baraldi Department of Orthopaedics and Surgery, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
There is a lack of cephalometric measurements for the mandible itself. This kind of measurement is useful to diagnostic asymmetries among the body and ramus, as well as among dental and mandibular midlines. Orthopantomography (panoramic radiography) has been used for the study
of measurements involving particularly the prediction of the eruption of impacted lower third molars and analyses of measurements of the ramus and head of mandible. The discrepancies involved with the projection of this radiographic image has stimulated the search for further ways to use it, particularly in orthodontic treatments and oral and maxillofacial surgeries. The author proposes a graphimetric method for the mandible, named panorametry, for mandibular tracing on panoramic radiographs. The tracing is performed to achieve linear bone, dental and bone-dental measurements. Horizontal and vertical planes are used. Using this method the clinical may establish proportionality among bone and dental structures, individually and comparing both sides. The information obtained can guide diagnosis and treatment of different kind of mandibular abnormalities. doi:10.1016/j.ijom.2009.03.580
P108 Postural cranio-cervicobrachialis re-equilibrium as effect of the orthognathic surgery A. Corbacelli, S. Scarsella ∗ , T. Cutilli Department of Maxillofacial Surgery, San Salvatore Hospital L’Aquila, L’Aquila, Italy
Background and Objectives: From many years we observed that in subjects with facial asymmetries, especially when vertical and/or transversal dimensions are involved, a high incidence of craniocervical-brachialis disorders associated with painful syndromes and functional limitations are present. Methods: We have planned a research based on anatomical study, clinical observations, diagnostic analysis by imaging (computed tomography [CT], CT-3D and magnetic resonance) and electrophysiological plans. These studies, revealed in these subjects a constant cranio-cervical musculoskeletal alteration that involve skull-base, cranio-axial junction and cervical spine, causing postural modifications and, in a documentable temporal succession, inflammatory-degenerative disorders of the small inter-somatic joints. The patients underwent orthognathic surgery (maxillary, mandibular or bimaxillary osteotomies) with some surgical expedient as correction with limited displacement of the bones, wide para-osteotomic periosteal detachments, semi-rigid mandibular fixation.
P105 Treatment of congenital true bottom prognathia (micrognathia) A. Glinnik, I. Khomich ∗ , S. Khomich Department of Maxillofacial Surgery, Belarussian State Medical University, Minsk, Belarus
Background and Objectives: Surgical treatment of anomalies of development and deformations of jaws is done by various ways with use of own tissues, transplants and implants. We performed surgeries on the bottom jaws with their distal displacement. Methods: Before the surgery we performed roentgenography of skulls in two projections, anthropometrical measurements of the face. Plaster models of jaws were created on which the condition of occlusion was defined at supposed change of position of the mandible. Splints were placed on teeth of these patients. The intubation narcosis was performed through a nose cavity. One-stage bilateral slanting sliding osteotomy of branches of the mandible was performed, mandible body distal displacement with fixing it with splints and wire sutures, screws. Results: Patients with splinted mandible were observed for 30–40 days. Then splints were removed and the patients underwent physiotherapy. After the surgery the appearance of the face of all patients gradually changed, biting and food chewing
became possible for them. Teeth were arranging into normal occlusion. Conclusion: Considering good aesthetic result, creation of optimum functionality, relative simplicity and safety of performance of operations, we consider that this method is the most suitable for treatment. doi:10.1016/j.ijom.2009.03.578
P106 Hemimandibular hyperplasia—a case report H. Mahendra ∗ , M. Kohli, N. Sharma, L.C. Gupta Department of Oral and Maxillofacial Surgery, Saraswati Dental College and Hospital, Rajendra Nagar, Lucknow, Uttar Pradesh, India
Introduction: Obwegesser and Makek in 1986 differentiated hyperplasia of condyle into hemimandibular hyperplasia, hemimandibular elongation and condylar hyperplasia. Case Report: A case of a 22-year-old male presented at the Saraswati Dental College, Lucknow, India, with chief complaint of left side facial asymmetry was treated alone with lower border shaving of the mandible and repositioning the nerve, hence preserving the enlarged condylar head. Excellent aesthetic results were achieved. Conclusion: In hemimandibular hyperplasia generally orthognathic surgery like Le Fort I osteotomy, bilateral sagittal split osteotomy, genioplasty is done, but in this case since the smile of the patient was normal, only by doing lower border shaving of the mandible and repositioning the nerve, good results were achieved. doi:10.1016/j.ijom.2009.03.579
P107 Panorametry: a method for measurement of the mandible on panoramic radiographs E. Puricelli ∗ , D. Ponzoni, G.L. Martins, C.E. Baraldi Department of Orthopaedics and Surgery, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
There is a lack of cephalometric measurements for the mandible itself. This kind of measurement is useful to diagnostic asymmetries among the body and ramus, as well as among dental and mandibular midlines. Orthopantomography (panoramic radiography) has been used for the study
of measurements involving particularly the prediction of the eruption of impacted lower third molars and analyses of measurements of the ramus and head of mandible. The discrepancies involved with the projection of this radiographic image has stimulated the search for further ways to use it, particularly in orthodontic treatments and oral and maxillofacial surgeries. The author proposes a graphimetric method for the mandible, named panorametry, for mandibular tracing on panoramic radiographs. The tracing is performed to achieve linear bone, dental and bone-dental measurements. Horizontal and vertical planes are used. Using this method the clinical may establish proportionality among bone and dental structures, individually and comparing both sides. The information obtained can guide diagnosis and treatment of different kind of mandibular abnormalities. doi:10.1016/j.ijom.2009.03.580
P108 Postural cranio-cervicobrachialis re-equilibrium as effect of the orthognathic surgery A. Corbacelli, S. Scarsella ∗ , T. Cutilli Department of Maxillofacial Surgery, San Salvatore Hospital L’Aquila, L’Aquila, Italy
Background and Objectives: From many years we observed that in subjects with facial asymmetries, especially when vertical and/or transversal dimensions are involved, a high incidence of craniocervical-brachialis disorders associated with painful syndromes and functional limitations are present. Methods: We have planned a research based on anatomical study, clinical observations, diagnostic analysis by imaging (computed tomography [CT], CT-3D and magnetic resonance) and electrophysiological plans. These studies, revealed in these subjects a constant cranio-cervical musculoskeletal alteration that involve skull-base, cranio-axial junction and cervical spine, causing postural modifications and, in a documentable temporal succession, inflammatory-degenerative disorders of the small inter-somatic joints. The patients underwent orthognathic surgery (maxillary, mandibular or bimaxillary osteotomies) with some surgical expedient as correction with limited displacement of the bones, wide para-osteotomic periosteal detachments, semi-rigid mandibular fixation.