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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Maxillofacial Plastic and Reconstructive Surgery
Journal Basic Information
Journal DOI :
Korean Association of Maxillofacial Plastic and Reconstructive Surgeons
Editor in Chief :
Volume & Issues
Volume 30, Issue 6 - Nov 2008
Volume 30, Issue 5 - Sep 2008
Volume 30, Issue 4 - Jul 2008
Volume 30, Issue 3 - May 2008
Volume 30, Issue 2 - Mar 2008
Volume 30, Issue 1 - Jan 2008
Selecting the target year
FINITE ELEMENT ANALYSIS OF RECONSTRUCTION OF MANDIBULAR SYMPHYSIS DEFECTS USING RECONSTRUCTION PLATES
Oh, Jung-Hwan ; Han, Jung-Soo ; Min, Jee-Hyun ; Mun, Sung-Jun ; Lee, Baek-Su ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 513~517
Purpose: This study aimed to evaluate distribution and maximal value of mechanical stresses on the reconstruction plate, bridging mandibular symphysis defect, and to optimize the most appropriate locations of the plate to distribute the stress causing the fracture of the plate. Materials and methods: Four types of reconstruction were constructed by different number and location of the reconstruction plates on the 3 D finite element model (FEM) of a human edentulous mandible; Type I: one plate on the inferior border of the anterior mandible, Type II: one plate on the middle of the anterior mandible, Type III: one plate on the superior border of the anterior mandible, and Type IV: two plates on the inferior and superior border of the anterior mandible. Results: The results showed that the maximal stress of type I (234.29 Mpa) was lower than that of type II (260.91 Mpa) and type III (247.37 Mpa), but higher than that of type IV (186.64 Mpa). We could also observe that the stresses are tending to focus on the inner side and inferior part of the plate which connected proximal segment from the vertical load. Conclusions: On the basis of the findings, it was concluded that using a plate on the inferior border of mandible or two plates on the inferior and superior border of mandible are more favorable to distribute mechanical stresses, which could reduce the fracture of the plate.
THE INFLUENCE OF THE INITIAL STABILITY AFTER DENTAL IMPLANT INSTALLATION ON THE OSSEOINTEGRATION
Lee, Young-Hoon ; Kim, Yeo-Gab ; Choi, Byung-Jun ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 518~528
Purpose: The long-term experience of using osseointegrated implants for prosthetic rehabilitation of the edentulous patients shows that high success rates can be predictably achieved. Primary implant stability has been identified to be a prerequisite to achieve osseointegration. In this study, we set up the amount of removed bone so that it differed on implant installation site for each group. The influence of each initial stability on secondary stability and osseointegration was compared with time lapse using resonance frequency analysis and histomorphometric analysis. Materials and methods: A total 27 US
(Osstem, Korea) implants were placed in the mandibular edentulous area of 3 beagle dogs. The implant site was prepared by the conventional technique with drills, and three experimental groups were divided into under-drilling group, normal-drilling group and over-drilling group. The Implant Stability Quotient (ISQ) was measured at intervals of immediately, 4, 8, 12 weeks after placement using
mentor RFA. After the animals were sacrificed, histomorphometric evaluation was executed for measuring BIC and BD. Results: 1) The under-drilled group showed most high ISQ value for whole experiment period. 2) Bone-to-implant-contact(BIC) showed the tendency to be increased gradually as the experiment period passed except the 8 weeks of the normal group. 3) The under-drilled group showed most high bone density(BD) level for whole experiment period, and it was expressed the aspect to be increased gradually according to an experiment period passage in the average of all group. 4) Resonance frequency analysis and histomorphometric analysis are presumed by generally proportional. Conclusions: As this research result, it seems that there are some correlation between resonance frequency analysis and histomorphometric analysis. As are accomplished osseointegration stably so that more superior at the region which the overpressure comes to add, it will be applicable method in clinical field.
EXPRESSIONS OF METASTASIS-RELATED FACTORS IN ORTHOTOPIC TUMOR MODELS OF ORAL SQUAMOUS CELL CARCINOMA
Park, Young-Wook ; Lee, Jong-Won ; Kim, So-Hee ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 529~539
Background and Purpose : Oral squamous cell carcinoma (OSCC) is one of the most aggressive tumors of the head and neck area. OSCC is known to preferentially metastasize via lymphatic system, and resulting cervical lymph node metastasis is the most reliable of treatment failure. But the biological mechanism of the regional nodal metastasis is not clear. So, we determined metastasis-related factors in orthotopic nude mouse models of OSCC. Experimental Design : Two cell lines-KB and YD-10B cells, established from human oral mucosal squamous cell carcinoma, were xenografted into the tissue space of athymic murine mouth floor. The mice were followed for tumor development and growth, the murine tumors were examined histopathologically for local invasion or regional or distant metastasis. Finally, we performed immunohistochemical assays with antiepithelial growth factor (EGF), EGF receptor (EGFR), phosphorylated EGFR (pEGFR), and anti-vascular endothelial growth factor (VEGF), VEGF receptor (VEGFR)-2, phosphorylated VEGFR-2/3 (pVEGFR-2/3) antibodies. We also determined the microvessel density. Results : Transplantation of human OSCC tumor cells into the mouth floor successfully resulted in the formation of orthotopic tumors. KB cell line showed significantly higher tumor proliferation and higher nodal metastatic potential than YD-10B cell line. Furthermore, immunohistochemical staining demonstrated higher expression of EGFR/pEGFR, VEGF, and pVEGFR-2/3 as well as higher microvessel density in KB murine tumors than in YD-10B murine tumors. Conclusion : An orthotopic model of OSCC in athymic mice was established which copies the cervical lymph nodal metastasis of human OSCC. Our mouth floor model should facillitate the understanding of the molecular pathogenesis of cervical nodal metastasis of OSCC.
ER: YAG LASER IRRADIATED IMPLANT SURFACE OBSERVATION WITH SCANNING ELECTRON MICROSCOPY
Choi, Jung-Goo ; Choi, Su-Jin ; Min, Seung-Ki ; Oh, Seung-Hwan ; Kwon, Kyung-Hwan ; Choi, Moon-Ki ; Lee, June ; Oh, Se-Ri ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 540~545
Since mid 20th century, dental treatments with laser have been introduced and improved a lot. Because early
, Nd:YAG, diode, argon, and holmium lasers are used for dealing soft tissue, so it applied just limited field. But, in 1997 the lasers of erbium family that able to dealing soft and hard tissue also were introduced, laser application fields are enlarged. In today, the application fields reach on implantation treatment, so clinicians can use the laser to make holes for implantation, and flap elevation, even though treating peri-implantitis. So our class want to discover the optimal setting of Er:YAG laser when treating peri-implantitis. We observed the surface that initially treated by RBM and TPS passion and laser with varied options of exposure time and power with SEM image. For this we conclude the optimal setting range that does not alter the implant surface structure and report it.
VALIDITY OF POSTERIOR ANTERIOR CEPHALOMETRIC AND 3D-CT FOR ORBITAL CANTING ANALYSIS
Kim, Jin-Wook ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 546~553
Purpose: The purpose of this study was to estimate validity of posterior anterior cephalometric and 3D-CT for orbital canting analysis. Materials and methods: Three trained observers classified two patients group using standardized frontal photographs of facial asymmetry patients. Group A consisted of patients with facial asymmetry and orbital canting(n=19), and group B consisted of patients with only facial asymmetry(n=43). Orbital canting was measured with line of bilateral inferior orbitale. Orbital canting measurement was done with posterior anterior cephalometric and 3D-CT. Each horizontal reference line was established by bilateral GWSO(cephalometric), FZS(3D-CT). Maxillary canting and mandibular deviation angle were also measured and analyzed with orbital canting. Results: The mean orbital canting was
in Group A and
in Group B in frontal photograph. The mean orbital canting was
in group A and
in group B by cephalometric analysis(p>0.05). In 3D-CT, orbital canting was almost paralleled with horizontal reference line. The orbital canting, maxillay canting and mandibular deviation between two groups showed no significant differences except madibular deviation in 3D-CT. Conclusion: Common analysis of posterior anterior cephalometric and 3D-CT is not valide method to evaluate orbital canting for facial asymmetry patients with orbital canting.
RESONANCE FREQUENCY ANALYSIS IN NON-SUBMERGED, INTERNAL TYPE IMPLANT WITH SINUS AUGMENTATION USING DEPROTEINIZED BOVINE BONE MINERAL
Lee, Ju-Hyon ; Min, Hyun-Gi ; Lee, Jin-Sook ; Kim, Myung-Rae ; Kang, Na-Ra ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 554~560
In posterior maxilla, it is difficult to achieve primary stability of implants due to sinus pneumatization, alveolar bone loss, and low bone quality. The accurate and objective primary stability assessment is important for good prognosis of implants. Purpose: The aim of this study was to assess the primary stability of the non-submerged, internal type implants with maxillary sinus augmentation using deproteinized bovine bone mineral by a resonance frequency analyzer, when residual alveolar bone height is under 8mm Materials and methods: A total of 20 implants was placed into 5 grafted maxillary sinuses in 5 patients. Deproteinized bovine bone mineral (Bio-
) was used as graft material. SS II implants (diameter 4.1mm, and length 11.5mm, SLA suface)) were placed. All of the patients received maxillary sinus graft procedure by 1-step technique. Residual bone height was
(mean 4.4mm) measured by panorama radiography. After implant placement, RFA was measured at 4,8,12,20 weeks. The results were divided into 2 groups; RFA value under 4mm and over 5mm of bone height. It was statistically analyzed. Results: 1. The primary stability of implants was increased with time 2. The RFA value was above 65 ISQ at 12 weeks 3. There was no correlation between RFA and residual alveolar bone height in maxillary sinus augmentation by 1-step technique. Conclusion: 1-step surgical procedure is a feasible option for patients with as little as 4mm residual alveolar bone height, when utilizing non-submerged, internal type implants with xenografts.
A CLINICAL STUDY ON THE EMERGENCY PATIENTS OF ORAL AND MAXILLOFACIAL SURGERY VISITING SANG-GYE PAIK HOSPITAL EMERGENCY ROOM.
Baik, Jee-Seon ; Yoon, Kyu-Ho ; Park, Kwan-Soo ; Cheong, Jeong-Kwon ; Shin, Jae-Myung ; Choi, Min-Hye ; Kwon, Jun ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 561~566
This is a retrospective clinical study on 2,955 patients who had visited the Emergency Room of Sang-gye Paik Hospital and then been treated in the Department of Oral and Maxillofacial Surgery during recent 4 years from Aug. 2002 to Dec. 2006. The obtained results were as follows. The total number of patients was 2,955 and the ratio of male to female was 1.72:1. The age distribution peak was the 1st decade (30.8%), followed by the 3rd decade (14.3%) and the 4th decade (14.0%). Trauma (62.3%) was the most frequent cause in dental emergency patients, pulpitis (13.0%) and infection patients were next in order of frequency. In trauma patients group, facial bone injury, tooth injury, soft tissue injury were included and soft tissue injury group was most prevalent, followed by tooth injury group and facial bone group. In total patient, the ratio of admission was 3.5%. We obtained the results of the distribution of primary emergency care in the traumatic injury, causal distribution of the jaw fracture, distribution of related medical department in multiple associated injuries, distribution of emergency care in infection, causal distribution and control methods of oral bleeding, distribution of TMJ disorder. The trauma patient group was major in the dental patients who had visited the emergency room, but other various groups were included. So we should analyze the pattern and the variation of the dental emergent patient to provide the proper treatment.
THE USE OF BISPECTRAL ANALYSIS AND HEMODYNAMIC MONITORING IN PATIENTS UNDERGOING INTRAVENOUS SEDATION FOR MINOR ORAL SURGERY
Shin, Jung-Sub ; Min, Hyun-Gi ; Lee, Ju-Hyon ; Lee, Dong-Hyun ; Kim, Myung-Rae ; Kang, Na-Ra ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 567~571
Purpose: The purpose was to assess the usefulness of midazolam in patients undergoing minor oral surgery under conscious sedation. Materials and methods: Bispectral index was examined in 20 patients receiving oral minor surgery with conscious sedation supplemented with local anesthesia. All patients included were ASA I and had no contraindications to the study medications. The patients were escorted to the day surgery operation room where, before the commencement of the sedation and surgical procedures, routine monitoring was applied, including the noninvasive monitoring of arterial blood pressure, arterial oxygen saturation, and 3-lead electrocardiogram (Electrocardiogram). Bispectral index electrodes were applied on the frontotemporal region after cleansing the skin with alcohol. Bispectral index was calculated with the Electrocardiogram monitor (A-2000; Aspect Co.). Midazolam was then titrated (initially 3mg wait 2min and 2mg). Vital sign and Bispectral index checked every 5 minute until the end of the procedure. The results were then compared. Results: The Bispectral index index values throughout the sedation study period alter many level. The index was dropped at 5 minutes after administration, but raised at injection and odontomy procedure. During the operation, mean Bispectral index index was higher than conscious sedation index range(
). The amnesic effect was shown 17 cases out of 20 cases(85%). Conclusion: Conscious sedation technique using midazolma is a safe and effective method of controlling behavior in oral and maxillofacial surgery.
GORHAM-STOUT DISEASE OF THE MANDIBLE: A CASE REPORT
Ji, Young-Min ; Song, Gin-Ah ; Shin, Jung-Hyun ; Pang, Kang-Mi ; Kim, Soung-Min ; Myoung, Hoon ; Seo, Byoung-Moo ; Choi, Jin-Young ; Lee, Jong-Ho ; Choung, Pill-Hoon ; Kim, Myung-Jin ; Hwang, Soon-Jung ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 572~576
Gorham-Stout disease is a rare skeletal disease which is progressive and spontaneous and idiopathic resorption of whole body bone. In the initial stage, the osteolytic site is replaced by histologically benign vascular proliferation without new bone formation and finally by dense fibrous tissues. We encountered with a patient involving the mandible with attention by the clinical, radiographic, scintigraphic, angiographic, and computed tomography. We resected the mandibular lesion which was reconstructed with a fibular free flap. We report literature review with a mandibular lesion involved with Gorham-Stout disease.
LANGERHANS CELL HISTIOCYTOSIS IN THE JUVENILE MANDIBLE
Kang, Yeon-Hee ; Park, Se-Hyun ; Seo, Dong-Jun ; Cha, In-Ho ; Yi, Choong-Kook ; Kim, Hyun-Sil ; Kim, Jin ; Kim, Hyung-Jun ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 577~583
Langerhans cell histiocytosis (LCH) is characterized by proliferation of pathological Langerhans cells within different organs. It mainly affects children, but adult cases also occur, with an incidence rate of one to two per million. LCH results from the clonal proliferation of Langerhans cells. And its etiopathogenesis is still unknown. The hypothesis that it is a neoplastic or inflammatory disease, as well as the existence or not of immunological, viral or genetic predisposing factors, has been widely discussed in the literature, but no conclusive proof has ever been provided. Although lesions may appear in tissues of various origins such as skin, hypothalamus, liver, lung, or lymphoid tissue, bone is the most common site of the disease. The head and neck are affected in almost 90% of cases. The maxillary and mandibular bones are affected in 5 to 10% of cases. In our report, we present four cases of LCH in patients aged 3, 4, 7 and 9 years respectively, with primary manifestation in maxillofacial area.
A CASE REPORT OF THE FACIAL ASYMMETRY BY INFANTILE MAXILLOFACIAL SURGERY
Choi, So-Young ; Kim, Jin-Wook ; Kwon, Tae-Geon ; Lee, Sang-Han ; Park, In-Suk ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 584~588
Facial asymmetry is particularly associated with mandible among other facial bones and it could be either congenital or acquired. Congenital factors are related to Treacher Collin syndrome, Pierre Robin syndrome, hemifacial microsomia and other various syndromes. Acquired factors are such as damaged or diseased growing condyles, hormonal disorder, oral mal-habit, muscular force, tumor, infection and so on. Diagnosis and treatment of facial asymmetry are complicated due to differences in sizes and positions of mandibles. The aspects of facial asymmetry is various and complicated upon each individual. Depending on causes of the facial asymmetry, there also are morphological differences. For such reasons, precise anatomical analysis and diagnosis of the facial asymmetry are essential before any surgical procedure followed by the appropriate treatment plan. This case is regarding a 21-year old patient diagnosed as the facial asymmetry due to an infantile maxillofacial surgery. Employing various morphological evaluations, potential problems during the procedure are predicted beforehand. This case reports a favorable result of sagittal split ramus osteotomy performing the oblique vertical bone cutting in posterior-superior of the mandibular second molar.
CASE REPORT: A PLUNGING RANULA EXTENDED INTO THE PARAPHARYNGEAL SPACE
Shin, Jung-Hyun ; Park, Joo-Young ; Ji, Young-Min ; Song, In-Seok ; Pang, Kang-Mi ; Choi, Sung-Weon ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 589~592
Running title: A plunging ranula extended into parapharyngeal space Ranulas are lesion of sublingual gland origin, which occur in the floor of the mouth. Most ranulas, whether simple or plunging, are pseudocysts without and epithelial lining and ranulas have higher levels of salivary amylase and protein content. They can be classified into two types based on their extent: simple ranulas, confined to the sublingual space and plunging ranula which extend into adjacent spaces. Plunging ranula requires differential diagnosis with other lesions (neuroma, monomorphic adenoma, hemangioma, lipoma, dermoid cyst, lateral cervical cyst). The patient was diagnosed as plunging ranula. We experienced 17 years old male, visited to our department, who complain Rt. cervical swelling and in MRI view, this lesion involved sublingual, submadibular, parapharyngeal, skull base. We experienced a rare case of plunging ranula, extended into parapharyngeal space. We report the case.
OSTEOMYELITIS ON MAXILLA CAUSED BY ARSENIC TRIOXIDE
Choi, Bo-Young ; Yoo, Dae-Hyun ; Choi, Mun-Ki ; Choi, Jung-Goo ; Lee, Young-Jin ; Jo, Byung-Ho ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 593~598
Arsenic trioxide is one of the 'tooth pulp devitalizing agents' used through the dental history when anaesthesia was not available. But owing to its capacity to kill cells in surrounding tissues, the use of arsenic trioxide in vital pulpotomy has been reduced. Arsenic trioxide can cause necrosis of gingiva, bone which can cause osteomyelitis of the jaws. But some dentists still continue to use arsenic trioxide in their endodontic practices. The purpose of this article is to present arsenic trioxide induced osteomyelitis on maxilla and treatment process.
CALCIFYING ODONTOGENIC CYST ASSOCIATED WITH MAXILLARY SINUS - A CASE REPORT -
Choi, Bo-Young ; Lee, Jun ; Kim, Jin-Hwan ; Yoon, Dong-Hyun ; Lee, Young-Jin ; Jo, Byung-Ho ; Yoo, Dae-Hyun ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 599~603
Calcifying odontogenic cyst(COC) is comparatively rare in occurrence. COC represents about 1% of jaw cysts, and although it may occur in soft tissue, it is most commonly found within bone. Both the intraosseous and extraosseous forms occur with about equal frequency in the maxilla and mandible, mainly in the incisor and canine areas The most notable features of this pathologic entity are histopathological and include a cyst lining demonstrating characteristic "ghost" epithelial cells with a propensity to calcify and the occasional association of this finding with certain odontogenic tumors including the odontoma and the ameloblastoma. In this case, COC was associated with anterior wall of the maxillary sinus which appeared in the anterior maxilla of 64-year-old woman, was reported. We report that the clinical experience of COC with review of literatures.
SUBMENTAL INTUBATION IN PANFACIAL TRAUMA PATIENT : A CASE REPORT
Seo, Dong-Jun ; Kim, Nam-Kyun ; Park, Se-Hyun ; Kang, Yeon-Hee ; Lee, Sung-Jin ; Kim, Hyung-Jun ;
Maxillofacial Plastic and Reconstructive Surgery, volume 30, issue 6, 2008, Pages 604~607
The technique of submental intubation in patient with multiple facial fracture and skull base fracture was originally described by Altemir. Not only is intermaxillary fixation feasible when using this surgical technique but a good field of vision is acquirable, and postoperative complications due to tracheostomy can be prevented. After Altemir presented submental intubation, many modified techniques were reported, applicable not only to trauma patients but also to elective surgeries such as orthognathic surgery including Lefort II or III osteotomy. This technique is easy to use, rapid and free of complications compared to alternative intubation method especially tracheostomy for multiple facial trauma patients.