When oral cancer develops in the maxilla, oro-nasal communication occurs after surgical treatment including removal of the primary site. Restoration through an obturator is necessary to prevent food from storing due to non-oral opening, and to ensure proper pronunciation and aesthetic restoration. In this case, the patient was treated with right hemi-maxillectomy due to oral cancer and has residual abutment and poor periodontal support due to the effect of head and neck radiotherapy. The obturator was treated with a hybrid telescopic double crown denture. Reporting a successful prognosis in 18 months of follow-up.
Crowns ; Dentures ; Follow-Up Studies ; Friction ; Head ; Humans ; Maxilla ; Mouth Neoplasms ; Neck ; Prognosis ; Radiotherapy ; Rehabilitation

Hybrid telescopic double crown have ever been good treatment option for patient with periodontally unfavorable few remaining teeth for successful prognosis. Tooth and implant combined telescopic double crown can be used for improving retention and support for denture with strategically placed implants on edentulous ridge. In this case, an 55-year-old female patient had chronic periodontitis with few remaining teeth on maxilla and fixed partial prosthodontics on mandible. Treatment of hybrid telescopic double crown with friction pin lasted 9.5 years only with natural teeth. After 9.5 years, additional implants was installed due to fracture of cast-posted abutment teeth. After implantation, tooth and implant combined double crown had fabricated. Through re-treatment, no complications of new denture has been found during 2 years follow up. This case presents fair prognosis of tooth and implant combined double crown denture in periodontally unfavorable condition.
Chronic Periodontitis ; Crowns* ; Dental Implants* ; Dentures* ; Female ; Follow-Up Studies ; Friction ; Humans ; Mandible ; Maxilla ; Middle Aged ; Prognosis ; Prosthodontics ; Rehabilitation* ; Tooth*

No abstract available.

PURPOSE: The objective of this literature review was to analyze the cumulative survival rates (CSRs) of rigid and non-rigid double-crown-retained removable dental prostheses.MATERIALS AND METHODS: Screening of the literature published from January 1995 to December 2019 was performed by using electronic data base (Pubmed) and manual search. The CSRs of rigid and non-rigid double crown removable dental prostheses were investigated.RESULTS: A total of 403 articles were reviewed and 56 relevant articles of them were selected. Subsequently, 25 articles were included for data extraction. These articles were classified according to rigid and non-rigid type double crowns and further subdivided into teeth, implants, and teeth-implant combination types. The CSRs of rigid type double crown ranged from 68.9% to 95.1% of 5 to 10 years in tooth abutments, 94.02% to 100% over a 3-year mean observation periods in implant abutments, and 81.8% to 97.6% in tooth-implant combination. Non-rigid type double crowns had various CSR ranges from 34% to 94% maximum during 10 years observation in teeth abutment. The CSRs of non-rigid type had over 98% in implant abutments, and ranged from 85% to 100% in tooth-implant combination.CONCLUSION: The CSRs of double crowns varies according to types. With accurate evaluation of the remaining teeth and plan of the strategic implant placement, it could be successful treatment alternatives for partially or completely edentulous patients.
Crowns ; Dental Prosthesis ; Humans ; Mass Screening ; Survival Rate ; Tooth

Posttraumatic pseudoaneurysms of the sphenopalatine artery are rare. Only a few cases have been reported. We report two cases of hemorrhage due to pseudoaneurysm of the sphenopalatine artery. The hemorrhage was uncontrollable. It required embolization. Two patients visited our hospital for treatment of zygomaticomaxillary complex fracture. At the emergency room, patients presented with massive nasal bleeding which ceased shortly. After reduction of the fracture, patients presented persistent nasopharyngeal bleeding. Under suspicion of intracranial vessel injury, we performed angiography. Angiograms revealed pseudoaneurysms of the sphenopalatine artery. Endovascular embolization was performed, leading to successful hemostasis in both patients. Due to close proximity to pterygoid plates, zygomaticomaxillary complex fracture involving pterygoid plates may cause injury of the sphenopalatine artery. The only presentation of sphenopalatine artery injury is nasopharyngeal bleeding which is common. Based on our clinical experience, although pseudoaneurysm of maxillary artery branch after maxillofacial trauma has a low incidence, suspicion of injury involving deeply located arteries and early imaging via angiogram are recommended to manage recurrent bleeding after facial trauma or surgery.
Aneurysm, False ; Angiography ; Arteries ; Embolization, Therapeutic ; Emergency Service, Hospital ; Epistaxis ; Hemorrhage ; Hemostasis ; Humans ; Incidence ; Maxillary Artery

In July 2010, we identified an outbreak of vancomycin-resistant enterococci (VRE) in our 26-bed neonatal intensive care unit. We performed an epidemiological investigation after clinical cultures of 2 neonates were positive for VRE. Identification, susceptibility testing, and molecular characterization were performed. Cultures of 3 surveillance stool samples of inpatients and 5 environmental samples were positive for VRE. All isolates were identified as Enterococcus faecium containing the vanA gene. Two distinct clones were identified by performing pulsed-field gel electrophoresis. The 2 clones exhibited different pulsotypes, but they represented identical Tn1546 types. Two sequence types, ST18 and ST192, were identified among all of the isolates with multilocus sequence typing. Our investigation determined that the outbreak in the neonatal intensive care unit was caused by 2 genetically different clones. The outbreak may have occurred through clonal spread and horizontal transfer of the van gene.
Anti-Bacterial Agents/pharmacology ; Bacterial Proteins/genetics ; Bacterial Typing Techniques ; Carbon-Oxygen Ligases/genetics ; DNA, Bacterial/analysis ; *Disease Outbreaks ; Electrophoresis, Gel, Pulsed-Field ; Enterococcus faecium/drug effects/*genetics/isolation & purification ; Feces/microbiology ; Genotype ; Gram-Positive Bacterial Infections/diagnosis/epidemiology/*microbiology ; Humans ; Infant, Newborn ; Intensive Care Units, Neonatal ; Male ; Multilocus Sequence Typing ; Vancomycin/pharmacology ; *Vancomycin Resistance

A 19-year-old, woman who had been diagnosed as systemic lupus erythematosus (SLE) a year ago, was admitted because of fever, dizziness, and sustained postoperative bleeding after a hemorroidectomy. On admission, a CBC revealed pancytopenia (Hb 6.2 g/dL, WBC 1,200/microL, platelets 11,000/microL) with a shift to themicroLeft, and the FDP and D-dimer were positive. She was treated for sepsis and disseminated intravascular coagulation. Granulocyte colony-stimulating factor (G-CSF) was administrated twice for severe neutropenia. An increase in WBC and immature myeloid cells, mainly hypergranular promyelocytes on the peripheral blood followed and was considered to be the effect of G-CSF. To evaluate the cause of pulmonary infiltrates, bronchoalveolar lavage (BAL) was performed on the 5th day of admission. The BAL fluid revealed many promyelocytes and myelocytes with occasional structures recognized as Auer rods. Acute promyelocytic leukemia (APL) was confirmed on the bone marrow study and chromosome analysis. Unfortunately, the patient died of septic shock on the 9th day of admission. We report here a very rare case of APL diagnosed in a SLE patient, the diagnosis of which was somewhat delayed due to the use of G-CSF and superimposed sepsis.
Bone Marrow ; Bronchoalveolar Lavage ; Diagnosis ; Disseminated Intravascular Coagulation ; Dizziness ; Female ; Fever ; Granulocyte Colony-Stimulating Factor ; Granulocyte Precursor Cells ; Hemorrhage ; Humans ; Leukemia, Promyelocytic, Acute* ; Lupus Erythematosus, Systemic* ; Myeloid Cells ; Neutropenia ; Pancytopenia ; Sepsis ; Shock, Septic ; Young Adult

In this paper, a new superimposition scheme using a computer vision system was proposed with pairs of skull and ante-mortem photographs, which were already identified through other tests and DNA fingerprints at the Korea National Institute of Scientific Investigation. In this computer vision system, an unidentified skull was caught by video-camcoder with the MPEG and the other ante-mortem photograph was scanned by scanner. These two images were processed and superimposed using pixel processing. This recognition of individual identifications by anatomical references can be performed on the two superimposed images for many big cases like as Guam KAL accident in 1997.
Artificial Intelligence ; DNA Fingerprinting ; Guam ; Korea ; Skull

The present study was carried out in order to observe the changes in the expression of the sialoglycoconjugates of the rabbit sinus mucosa after inoculation of influenza A virus utilizing a biotin labeled lectins for light microscopy with four different lectins; Maackia amurensis(MAA), Wheat germ agglutinin(WGA), Sambucus nigra(SNA), and Peanut(PNA). A comparison of the affinity of these lectins demonstrated the different distribution of sialoglycoconjugates in the ciliary layer and goblet cells. The normal sinus mucosa stained with four types of lectins showed that the sialoglycoconjugates were mainly distributed in the ciliary layer and goblet cells. Moreover, the main sugar residues of the sialoglycoconjugates were figured out to be consisted of Neu5Ac(alpha2,3)Gal, GlcNAc and Neu5Ac. Influenza A virus infection decreased the staining intensity of the mucosa with MAA, but not with WGA. The staining intensity of PNA, however, was highly increased in the viral infected mucosa. These results suggest that Neu5Ac(alpha2,3)Gal sugar residues may be required as protecting factor or modulator for Influenza A virus infectivity.
Biotin ; Goblet Cells ; Influenza A virus* ; Influenza, Human* ; Lectins ; Maackia ; Maxillary Sinus* ; Microscopy ; Mucous Membrane* ; Sambucus ; Triticum

PURPOSE: Glufosinate ammonium poisoning can cause seizures, even after a symptom-free period. This study was conducted to evaluate the relationship between serum neuron specific enolase (NSE) level and the occurrence of seizures in patients with acute glufosinate ammonium poisoning. METHODS: For this retrospective observational study, data from patients diagnosed with acute glufosinate ammonium poisoning were collected between January 2016 and June 2016. Serum NSE was measured within 2 hours of arrival at the emergency department. The patients were divided into a seizure group and a non-seizure group. RESULTS: The seizure group included eight of the 15 total patients (53.3%). The serum NSE level was significantly higher in the seizure group than in the non-seizure group (32.4±11.9 ng/mL vs. 19.5±5 ng/mL, p=0.019). The amount of glufosinate ingested and initial and peak serum ammonia levels were significantly higher in the seizure group than in the non-seizure group. There was no significant difference in the area under the curve of the serum NSE level or the initial and peak serum ammonia levels in terms of predicting the occurrence of seizures. CONCLUSION: In acute glufosinate poisoning, initial serum NSE levels may help in prediction of seizures.
Ammonia ; Ammonium Compounds* ; Biomarkers ; Emergency Service, Hospital ; Herbicides ; Humans ; Neurons* ; Observational Study ; Phosphopyruvate Hydratase* ; Poisoning* ; Retrospective Studies ; Seizures*