• The Journal of Korea Assosiation for Disability and Oral Health
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• v.10 no.2
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• pp.78-83
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• 2014

The objective of this study was to confirm the validity of classification of dental disability by measuring the dental treatment time required for disabled patients and identify the disability type that requires more of chair time. As a result of measuring a total of 123 patients who were admitted to the Seoul dental hospital for the disabled on Oct. 2014, I was able to make the following conclusions: 1. For dental counseling and check-up, the chair time did not show significant differences between the different types of disability. 2. For periodontal treatment, restorative treatment, root canal treatment, and surgical treatment, the difference of the chair time for dentally disabled patients was significantly longer than that of non-dentally disabled patients. 3. The difference in the total chair time for prosthetic treatment was statistically insignificant. However, each of the prosthetic treatment steps did show statistically significant differences.

• Journal of Veterinary Clinics
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• v.17 no.1
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• pp.298-298
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• 2000

Seven years old male lion in Everland Zoo has three fractured canine tooth. To avoid the risk of a possible fracture with pulp exposure after restroration of largest abration defects, endodontic therapy was performed. The pulp chamber was filled with calcium hydroxide, zinc oxide cement and gutta percha. We also installed the Crown prosthesis was installed in fractured canine tooth to protect the tooth and to improve the cosmetics and function of the tooth. The lion could eat in one day and there were no any signs of dental problem. It is the obvious prophylactic procedure for wild animal is the inclusion of an oral examination at every opportunity to handle the animal. It is considered that crown prosthesis after endodontic therapy was useful for maintaining normal physiological function and for provention of additional fracture or complication.

• The Journal of the Korean dental association
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• v.48 no.11
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• pp.803-812
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• 2010

Regenerative endodontic procedure (REP) is a treatment option to replace damaged pulp tissue with the viable tissue which restores the normal function of the pulp-dentin complex. Possible reason for doing REP is not clearly known, however, clinicians perform REP in order to recover the histological structure as well as function of the traumatized and diseased tooth so that this tooth can restore its original root shape and thickness. This REP can be explained by the concept of revascularization or revitalization after induction of blood clot formation in the canal space. For this purpose, several treatment strategies have been suggested. In this regard, the rationale for the application of triantibiotics, calcium hydroxide or mineral trioxide aggregate is discussed in this paper. As a result, we will try to find the best method for REP by reviewing each available technique and their advantages and disadvantages.

• Journal of Korean Neurosurgical Society
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• v.47 no.3
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• pp.232-234
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• 2010

Gas pseudocysts are a rare cause of lumbar radiculopathy and most symptomatic gas pseudocysts are found within the confines of the spinal canal. A gas pseudocyst in the foramen causing lumbar radiculopathy is very rare. We present a case of a 67-year-old woman suffering from severe pain in the right leg. Computed tomography and magnetic resonance imaging revealed a gas pseudocyst compressing the L2 root at the right L2-3 foramen. The patient underwent cyst excision using the lateral transmuscular approach and her leg pain was improved after the operation.

• Applied Microscopy
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• v.24 no.4
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• pp.98-106
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• 1994

The corneal formation of compound eye of Pieris rapae L., which was mostly made during pupal stage, was morphologically investigated with light microscope, scanning electron microscope and transmission electron microscope. The regeneration of the microvilli were found on the surface membranes of corneagen cells and retinular pigment cells of preommatidium after apolysis pupal cuticle. The microvilli were finally differentiated to corneal nipples of the ommatidium. The corneal cuticle was generated on the superficial layer of the preommatidium from corneagen cells and retinular pigment cells. The corneal process was also formed under the cuticular layer from the corneagen cells. The pore canal was appeared within the cuticular layer and connected with the retinular pigment cell as if the root of interommatidial hair was connected. The interommatidial hair was projected randomly among the ommatidial facets and cornal nipple was arrayed regular on the ommatidial facets. The cornea was convex lens and the refracting power by its convex shape was 4 diopter.

• The Journal of the Korean dental association
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• v.38 no.6 s.373
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• pp.567-569
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• 2000

Many teeth have been mistakenly extracted or endodontically treated because of an incorrect diagnosis of orofacial pain including toothache, A case report of persistent toothache originating from a malignant lymphoma of left maxilary sinus is presented. Root canal therapy and extraction of left upper quadrant teeth from canine to second molar did not resolve the chief complaint. The patient was referred to a neurologist and was diagnosed with a malignant lymphoma, a rare lesion of the maxillary sinus. The case stresses the importance of malignant neoplasms of maxillary sinus as a potential etiologic factor in the differential diagnosis of orofacial pain.

• Journal of Korean Neurosurgical Society
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• v.52 no.6
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• pp.567-569
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• 2012

Synovial cysts of the lumbar spine are an uncommon cause of back and radicular pain. These cysts most frequently present as back pain, followed by chronic progressive radiculopathy or gradual onset of symptoms secondary to spinal canal compromise. Although less common, they can also present with acute spinal cord or root compression symptoms. We report of a case in which hemorrhaging into a right L2-3 facet synovial cyst caused an acute onset of back pain and radiculopathy, requiring surgical excision.

• Journal of Korean Neurosurgical Society
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• v.48 no.5
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• pp.465-468
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• 2010

Vertebral artery loop formation causing encroachment on cervical neural foramen and canal is a rare cause of cervical radiculopathy. We report a case of 61-year-old woman with vertebral artery loop formation who presented with right shoulder pain radiating to her arm for 2 years. Plain radiograph and computed tomography scan revealed widening of the right intervertebral foramen at the C5-6 level. Magnetic resonance imaging and angiogram confirmed the vertebral artery loop formation compressing the right C6 nerve root. We had considered microdecompressive surgery, but the patient's symptoms resolved after conservative management. Clinician should keep in mind that vertebral artery loop formation is one of important causes of cervical radiculopathy. Vertebral artery should be visualized using magnetic resonance angiography in suspected case.

• Proceedings of the KACD Conference
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• 2001.11a
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• pp.583.1-583
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• 2001

One fifth dilution of formocresol is usually used for pulpotomy of primary teeth and emergency pulpotomy of permanent teeth. Recently Depulpin (VoCo., Germany) gains popularity as devitalizing agent during root canal therapy in spite of high concentration of 49% paraformaldehyde. But there are not enough publications about the reaction of dental pulp and periapical tissue caused by Depulpin. Therefore, This study was performed to evaluate the histological changes in pulp and periapical tissue of rat after pulpotomy using formocresol and Depulpin.(omitted)

• Proceedings of the KACD Conference
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• 2001.11a
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• pp.584.2-584
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• 2001

The purpose of the present study were to evaluate microleakage of a fourth generation dentin-bonding agent following a walking bleaching treatment, to determine the effect of temporary postbleaching dressing with calcium hydroxide on microleakage and to investigate the effect of delayed intracoronal restoration on micro leakage. Forty extracted non-carious incisors were selected and conventional root canal treatment was performed. The teeth were randomly divided into 4 groups of 10 specimens each.(omitted)