The association between blood groups and maxillofacial deformities
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ABSTRACT Background: Blood group is a genetic characteristic which is associated with some diseases and deformities. Multifactorial characteristics of facial development make it difficult to predict a genetic pattern in a specific maxillofacial deformity, but epidemiological evaluations can reveal relationships between such deformities and some genetic characteristics or accompanied diseases, and this will help to recognise and treat them. The aim of this study is evaluation of the relationship between blood groups and maxillofacial deformities. Materials and Methods: In this study, blood groups of 190 patients with maxillofacial deformities who had had orthognathic surgery in Alzahra hospital, Isfahan, were compared with the general Iranian population. Results: Among 190 patients, 93 cases (49%) were men and 97 cases (51%) were women. Fifteen cases (8%) were < 20 years old, 130 cases (68%) were 20-30 years old, and the others (45 cases, 24%) were > 30 years old. The blood group distribution in our samples was as follows: blood group O = 76 cases (40%), blood group A = 58 cases (30%), blood group B = 41 cases (22%), and blood group AB = 15 cases (8%). Among these patients, 31 cases (16%) had maxillary deformities and 27 cases (14%) suffered from mandibular deformities while the other 132 cases (70%) had bimaxillary problems. The Chi-square test showed statistically significant differences between the blood group distribution of the patients of this study and the normal Iranian population ( P < 0.001). Conclusion: It was shown that among different blood groups; those with blood group B have a greater likelihood of association with maxillofacial deformities. On the other hand, the probability of the association of such deformities was the least with blood group A.Keywords:
Facial deformity
Facial deformity
Complex fracture
Facial trauma
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When orthognathic surgery is performed to produce functional improvement of the maxillomandibular complex, additional esthetic corrections to harmonize facial proportions are often necessary as well as desired by the patient. Simultaneous profile corrections occur with orthognathic surgery, but rhinoplasty requires a second intubation after the correction of the maxillomandibular complex. In the case of an asymmetric facial deformity, a two-stage procedure is recommended because positioning of the soft tissues is more easily planned after the jaws have healed and are functioning in their new positions. Several examples of soft tissue changes and their respective orthognathic procedures are described.
Facial deformity
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Abstract Facial deformity associated with jaw malalignment and malocclusion can be addressed with orthognathic surgery to reposition the maxilla or mandible, or both, in combination with dental alignment with orthodontic treatment. Careful assessment of facial proportion and treatment planning allows precise repositioning of the facial skeleton and teeth to restore appearance and occlusion.
Facial skeleton
Mandible (arthropod mouthpart)
Facial deformity
Dentofacial Deformity
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Introduction: The position of facial bones contribute great impact to the shape of the face. Shape of these underlying facial bones responsible for a person facial proportions, angles and contours. Facial deformity can either be congenital or acquired. Functional impairment related to facial deformity include chewing problems, breathing problems, speech impairments and temporomandibular joint pathology. Orthognathic surgery is a procedure involving incision and manipulation using instrument to align the jaws. Performing cosmetic surgery seems to change the creation of Allah and the original law of changing Allah creation is prohibited. Materials and Methods: The approach use in this study is based on analysis of Quran, Sunnah, views of ulama and contemporary fatwas. Results: In assessing the orthognathic surgery law for patients with this dentofacial defect, the researcher found that the main issues that need to be investigated are the difficulties existed (Masyaqqah) and the level of patient harm in addition to the intention or purpose of performing orthognathic surgery. However, according to the principles of the Islamic jurisprudence, orthognathic surgery is permitted based on the principles such as ad-darar yuzal, almusyaqqah tajlibu al-taisir, al-darurat tuqaddiru biqadaruha, Irtikab Akhaf Al-Dhararain and aldarurat tubihu mahzurat serta al-Umur bimaqasidiha. Conclusion(s): Orthognathic surgery is permissable because the purpose is not to alter the original look but as measurement to treat defects and to restore function. This objective is very consistent with the fiqh rules that stated, every harm and distress should be eliminated.
Dentofacial Deformity
Facial deformity
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The case of a child treated for globulomaxillary cyst is presented. He first consulted because of progressive deformity of the face and upper gum, starting several months before. He had a history of facial contusion at the time the deformity began.
Facial deformity
Facial trauma
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Objective: Quality of life assessment of Kurdish patients with dentofacial deformities after orthognathic surgery to compare their results with those of patients who have no dentofacial deformity by applying the orthognathic quality of life questionnaire (OQLQ).
Materials and Methods: Three groups of patients were interviewed, and orthognathic quality of life questionnaires (OQLQ) was used to assess generic health-related quality of life. They were asked to complete the Kurdish version of the 22-item orthognathic quality of life questionnaire (OQLQ) for control, preoperatively and postoperatively patient. Responses at these different time points were compared using paired t-tests, with the significance level set to P<0.05.
Results: There were statistical differences in the satisfaction of four domains (oral function, facial aesthetics, psychological, and social aspects) by these indicated that quality of life was significantly improved by orthognathic surgery (all P<0.001). Results showed statistical differences between groups and suggested that patients with no deformity and those subjected to orthognathic surgery have a better quality of life compared to those with a facial deformity.
Conclusion: Dentofacial correction by orthognathic surgery seems to have a positive effect on the quality of life.
Dentofacial Deformity
Facial deformity
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Objective To explore the effects of Medpor in surgical treatment of craniofacial de-pressed deformities. Methods Combining with other surgical methods, 37 patients with craniofacial de-pressed deformities were treated with Medpor. Of them, 29 cases of craniofacial depression and defects subjected to trauma, 6 cases were progressive facial hemiatrophy and 2 case were angle of mandible de-formity. All were followed up from three months to four year. Results Facial configurations and func-tions of all the 37 cases were greatly improved after the treatment, without any complication of infection or rejection;patients were all very satisfactory or relatively satisfied with the results. Conclusion Med-por is an ideal implant material to correct the deformity of earaniofacial, and combining with others methods, the treatment of earaniofacial deformity can obtain good results.
Key words:
Craniofacial bone; Deformity; Defect; Medpor
Facial deformity
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Facial deformity
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Facial deformity
Surgical Planning
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Objective:To investigate the application of Computer-assisted three dimensional planning and simulation system for orthognathic surgery in the treatment of maxillofacial deformity. Method:On the basis of Windows 98,the system was developed by 3-D visualization technique and VisualC++6.0. 8 maxillofacial deformity cases were treated by using the system. Result:The orthognathic osteotomies of 8 cases were performed in our system interactively and the clinical results were satisfactory. Conclusion:The system can be used to raise the level of clinical diagnosis and treatment of maxillofacial deformity,and promote the communication and cooperation between patients and doctors.
Surgical Planning
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