Anterior Teeth Measurement among Subjects in the University of Port Harcourt as a Sex Indicator and Aid to Maxillofacial Reconstruction

Background: The aim of this study is to determine sexual dimorphism using anterior teeth measurements and its use as an ancillary tool for sexual determination. Methods:In this study, the measurements of the anterior teeth were carried out on one hundred and forty students (80M: 60F) of the University of Port-Harcourt ranging from 15-30 years. The mesiodistal diameter of the central and lateral incisors, right and left canines and their inter-canine distance were measured. These measurements were done with the aid ofa digital Vernier caliper. Also, the percentages of sexual dimorphism were calculated. The values were subjected to statistical analysis.Results:The mean mesiodistal central incisor (MDCI) value for males was 9.78 ± 0.47mm while that of the females was 9.29±0.46mm. The mean mesiodistal lateral incisor (MDLI) value for males was 7.80 ±0.54mm while that of the females was 7.40±0.54mm. The mean mesiodistal right canine (MDRC) value for males was 7.43±0.49mm while that of the females was 7.04±0.40mm. The mean mesiodistal left canine (MDLI) value for males was 7.39±0.51mm while that of the females was 7.03±0.55mm. The mean mandibular inter-canine distance (MICD) value for males was 33.73±1.15mm while that of the females was 32.23±0.98mm. They were all statistically significantat p<0.05.Conclusion:It can be concluded that the incisors and the canines are useful tools in sex determination. The data obtained can be useful in maxillofacial reconstructive surgery

Twisting Effect on Supermicroanastomosis of the Superficial Inferior Epigastric Artery in a Rat Model

Prelaminated free flap for the reconstruction of maxillary defects

BACKGROUND In contrast to defects of the mandible and mouth floor region, in the defect of maxilla, the availability of firmly attached oral and nasal mucosal linings is needed. In addition to it, in consider of operation field, operating convenience, and esthetics, reconstruction using prelaminated flap is strongly recommended. Therefore we consider the prelaminated flap through the cases that is reconstructed using prelaminated forearm flap and prelaminated scapular flap. PATIENTS AND METHODS From 2001 to 2008, in OMFS SNUDH, there were 6 cases that had reconstruction using prelaminated forearm free flap and other 3 cases that had reconstruction using prelaminated scapular flap of maxilla. The average age of patients that were reconstructed using prelaminated forearm free flap was 47.5 years, the average prelaminated period (after 1st operation ~ until 2nd operation) was 51.8 days and the average follow-up period after 2nd operation was 35.3 months. As well, the average age of patients that were reconstructed using prelaminated scapular free flap was 37 years, the average prelaminated period (after 1st operation ~ until 2nd operation) was 57 days and the average follow-up period after 2nd operation was 42.3 months. RESULTS Except 1 case that were reconstructed using prelaminated scapular flap, we could get firmly attached oral and nasal stable skin(mucosal like) lining, more adequate thickness flap than any other flap and improved esthetic and functional results in the other 8 cases that were reconstructed using prelaminated flap. The complications of the prelaminated forearm flap cases were inconvenient swallowing, sputum, limitation of mouth opening and difficult mastication. It came from flap shrinkage of the flap in some aspect, as well as other combined operations such as mass resection or RND. The difficult point of the reconstruction of prelaminated scapular flap was the possibility of vascular damage at preparation of flap in 2nd surgery. The damage could cause the failure of the prelaminated scapular flap. And the skin-lining of the prelaminated flap had limitations, so it is needed to study about the cultured oral epithelium-lining flap instead of the skin-lining flap. CONCLUSION We considered about advantages, complications and notable things of prelaminated flap through maxillary reconstruction cases using prelaminated forearm flap and prelaminated scapular flap so far. Furthermore, we should go on studying for functional reconstruction of prelaminated fasciomucosal flap using cultured oral epithelium.

Prelaminated free flap for the reconstruction of maxillary defects

BACKGROUND In contrast to defects of the mandible and mouth floor region, in the defect of maxilla, the availability of firmly attached oral and nasal mucosal linings is needed. In addition to it, in consider of operation field, operating convenience, and esthetics, reconstruction using prelaminated flap is strongly recommended. Therefore we consider the prelaminated flap through the cases that is reconstructed using prelaminated forearm flap and prelaminated scapular flap. PATIENTS AND METHODS From 2001 to 2008, in OMFS SNUDH, there were 6 cases that had reconstruction using prelaminated forearm free flap and other 3 cases that had reconstruction using prelaminated scapular flap of maxilla. The average age of patients that were reconstructed using prelaminated forearm free flap was 47.5 years, the average prelaminated period (after 1st operation ~ until 2nd operation) was 51.8 days and the average follow-up period after 2nd operation was 35.3 months. As well, the average age of patients that were reconstructed using prelaminated scapular free flap was 37 years, the average prelaminated period (after 1st operation ~ until 2nd operation) was 57 days and the average follow-up period after 2nd operation was 42.3 months. RESULTS Except 1 case that were reconstructed using prelaminated scapular flap, we could get firmly attached oral and nasal stable skin(mucosal like) lining, more adequate thickness flap than any other flap and improved esthetic and functional results in the other 8 cases that were reconstructed using prelaminated flap. The complications of the prelaminated forearm flap cases were inconvenient swallowing, sputum, limitation of mouth opening and difficult mastication. It came from flap shrinkage of the flap in some aspect, as well as other combined operations such as mass resection or RND. The difficult point of the reconstruction of prelaminated scapular flap was the possibility of vascular damage at preparation of flap in 2nd surgery. The damage could cause the failure of the prelaminated scapular flap. And the skin-lining of the prelaminated flap had limitations, so it is needed to study about the cultured oral epithelium-lining flap instead of the skin-lining flap. CONCLUSION We considered about advantages, complications and notable things of prelaminated flap through maxillary reconstruction cases using prelaminated forearm flap and prelaminated scapular flap so far. Furthermore, we should go on studying for functional reconstruction of prelaminated fasciomucosal flap using cultured oral epithelium.

Reconstruction Of Oral And Maxillofacial Defects Using Temporal Muscle Flap

Temporal muscle flap is usefull for the reconstruction of tissue defect at the oral and maxillofacial area. This article reports 3 cases of temporal muscle flap for the soft tissue reconstruction of infraorbital, palatal and mandibular retromolar area after tumor ablation. The advantages and disadvantage, postoperative complications and technical variations were reviewed and our 3 cases were evaluated in this aspects.

A Clinical Evaluation of Hypotensive Anesthesia for Maxillofacial Reconstruction and Plastic Sugery / 대한마취과학회지

Deliberate hypotension reduces bleeding into a wound, thereby providing the surgeon with both better visilibility and technical freedom for a more definitive dissection and minimizes the need for blood transfusion, thereby reducing the risks of transfusion reasctions, hepatitis and acquired immunodeficiency syndrome (AIDS). In this study we evaluated the hypotensive anesthesia induced by sodium nitroprusside for maxillofacial reconstruction and plastic surgery performed at Seoul Paik Hospital from March 19S8 to February 1989: The results of our study were as follows: 1) Halothane and enflurane were used as the main anesthetics in 77 and 6 cases respectively. Nitroprusside was used for inducing hypotension and the mean amount infused was 10.5+/-7.7 mg. 2) The mean arterial pressure at 30min after inducing hypotension was 64.5+/-5.3mmHg. 3) The mean blood loss was 736.9+/-394.5ml and the mean amount of transfused blood was 497.1+/-451.1 ml. 4) The intraoperative arterial blood gas analysis shoueds no significant abnormality. 5) There were no significant perioperative and postoperative complications due to induced hypotension itself. In conclusion, the technique of using induced hypotension with inhalation anesthesia supplemented by nitroprusside under 10 head up position is relatively safe and useful one to use in performing maxillofacial reconstruction and plastic sugery.