1.Clinicopathologic parameters in predicting cervical nodal metastasis in early squamous cell carcinoma of the oral cavity.
Hyoun Chull KIM ; Jingo KUSUKAWA ; Tadamitsu KAMEYAMA
Journal of the Korean Association of Oral and Maxillofacial Surgeons 1992;18(3):90-97
No abstract available.
Carcinoma, Squamous Cell*
;
Mouth*
;
Neoplasm Metastasis*
2.SINGLE TOOTH IMPLANT RESTORATION USING COMBINATION IMPLANT CROWN : A CASE REPORT.
Rae Gyoung KIM ; Eon Hee SONG ; Byeong Gap CHOI ; Hyoun Chull KIM ; Hyun Jeong AHN
The Journal of Korean Academy of Prosthodontics 1999;37(3):375-382
The purpose of this article is to present the clinical and laboratory procedures for single tooth restoration using "Combination Implant Crown". It is cemented on implant abutment and that abutment is screw-retained over implant body. This type of implant restorations has the advantages of cement-retained restoration while being antirotational and retrievable. And, more esthetic and functional result can be achieved by minimizing the size of access hole. The results were as follow : 1. Preparation of abutment below the cuffline should be avoided 2. Axial reduction of implant abutment should not be excessive because it may weaken the abutment 3. More esthetical and functional occlusal surface was achieved with a minimal access hole which is slightly larger than the diameter of hex driver to enable future total retrievability. 4. Combination Implant Crown has the advantages of both the cement-retained and screw-retained type implant restoration. 5. Cementation between implant crown and abutment reduces screw loosening through even force distribution.
Cementation
;
Crowns*
;
Tooth*
3.Clinical Evaluation of Bleeding Tendency in Childhood.
In Chull YOO ; Gill Hyoun KIM ; Sang Man SHIN ; Sang Jhoo LEE
Journal of the Korean Pediatric Society 1988;31(12):1641-1649
No abstract available.
Hemorrhage*
4.Study on the Platelet Survival Time in the Patients with Coronary Artery Disease.
Hie Chull SON ; Yeong Chun LEE ; Yeong Sook RHA ; Ja Cheon KIM ; In Soon KWON ; Yung LEE ; Jeong Hyoun PARK ; Hyoun Chan CHO
Korean Circulation Journal 1985;15(4):625-632
To evaluate the platelet activation in vivo in the patients with coronary artery disease Indium-111 labeled autologus platelet survival time was measured. Platelet survival determinations were made according to a modified method for radioisotope platelet survival studies recommended by the Panel on Diagnostic Application of Radioisotopes in Hematology of the International Committee for Standardization in Hematology. Autologous platelets were labeled with 111 In-oxine utilizing a similar method used at the Mallinckrodt Institute of Radiology. The results are summarized as follows : 1) In the patients with coronary artery disease, especially acutemyocardial infarction, the mean platelet survival time was significantly shorter than that of the normal controls(P<0.05). 2) The mean platelet survival time did not differ significantly between patients with acute myocardial infarction and angina pectoris. 3) The mean platelet survival time did not differ significantly between nonsmoker and smoker in the patients with coronary artery disease.
Angina Pectoris
;
Blood Platelets*
;
Coronary Artery Disease*
;
Coronary Vessels*
;
Hematology
;
Humans
;
Infarction
;
Myocardial Infarction
;
Platelet Activation
;
Radioisotopes
5.Oral Bisphosphonates Induced Osteonecrosis of the Mandible : a Case Report.
Hyo jeong SON ; Ho yeol JANG ; Yun seon KEUM ; Jang yeol LEE ; Hyoun Chull KIM ; Sang chull LEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2009;35(2):106-111
Bisphosphonates have been approved for Paget's disease, cancer - related hypercalcemia, bone involvement in multiple myeloma or solid tumors and osteoporosis. Although, underlying pathophysiological mechanisms remain unclear, it seems that bisphosphonates inhibit osteoclast precursor cells, modulate migratory and adhesive characteristics and induce apoptosis of osteoclasts. Furthermore impacts on angiogenesis, microenvironment and signal transduction between osteoclasts and osteoblasts. In this report, we present a case of oral bisphosphonates induced osteonecrosis of the mandible in a 84-year-old patient who received for two years. Two tapered screw vent implants(Zimmer, USA) were placed in the area of first and second molar. Two weeks later after crowns restored, some inflammatory signs and symptoms were observed on the second molar area. Sequestrum was formed and the sequestrum was removed with the implant. Frequent follow-up checks and oral hygiene maintenances were done and the first molar implant was restored. There is insufficient evidence suggests that duration of oral bisphosphonate therapy correlates with the development and severity of osteonecrosis. Therefore, dentists should not overlook the possibility of development of bisphosphonate induced osteonecrosis in patients who have taken oral forms of medication for less than three years.
Adhesives
;
Aged, 80 and over
;
Apoptosis
;
Crowns
;
Dentists
;
Diphosphonates
;
DNA-Directed DNA Polymerase
;
Follow-Up Studies
;
Humans
;
Hypercalcemia
;
Mandible
;
Molar
;
Multiple Myeloma
;
Oral Hygiene
;
Osteoclasts
;
Osteonecrosis
;
Osteoporosis
;
Signal Transduction
6.A Case of Actinomycosis of the Inguinal Area.
Ji Hyun YI ; Hyoun Sung CHOI ; Han Uk KIM ; Chull Wan IHM
Korean Journal of Dermatology 2005;43(1):67-70
Actinomycosis is a chronic bacterial infection characterized by suppurative, fibrosing inflammation, and sinus tracts draining sulfur granules. It usually involves the head, neck, thorax and abdomen. Actinomycosis involving the inguinal area is extremely rare. A 55-year-old man presented with an asymptomatic, erythematous, hard, nontender nodule in his left inguinal area. A biopsy taken from the nodule showed an abscess and sulfur granules in the dermis. Gram staining and methenamine silver staining demonstrated a mesh of branching rods. Cultures of the pus and tissue specimens failed to grow any organisms. Based on the histopathologic findings, we diagnosed this case as actinomycosis of the inguinal area and treated it with a surgical method.
Abdomen
;
Abscess
;
Actinomycosis*
;
Bacterial Infections
;
Biopsy
;
Dermis
;
Head
;
Humans
;
Inflammation
;
Methenamine
;
Middle Aged
;
Neck
;
Sulfur
;
Suppuration
;
Thorax
7.A Case of Primary Cutaneous CD30 (Ki-1) Positive Lymphoproliferative Disorder: Borderline Type.
Hyoun Sung CHOI ; Seok Kweon YUN ; Han Uk KIM ; Chull Wan IHM
Korean Journal of Dermatology 2005;43(12):1656-1659
No abstract available.
8.A Case of Papillary Eccrine Adenoma.
Hyoun Sung CHOI ; Ji Hyun YI ; Seok Kweon YUN ; Han Uk KIM ; Chull Wan IHM
Korean Journal of Dermatology 2004;42(3):353-355
Papillary eccrine adenoma is a rare benign sweat gland neoplasm. It occurs most often as a solitary nodule in women and is located predominantly on the distal portion of the extremities. This tumor is similar to tubular apocrine adenoma in histological and clinical aspects, so distinction of these tumors is still controversial. We report a case of two papillary eccrine adenomas developed on the left popliteal and calf area of a 58-year-old-man, this is the first report of the multiple papillary eccrine adenomas in Korea.
Adenoma*
;
Extremities
;
Female
;
Humans
;
Korea
;
Sweat Gland Neoplasms
9.A Statistical Study of Dermatoses in the Jeonbuk Province (1979-1980, 1987-2002).
Hyoun Sung CHOI ; Seok Kweon YUN ; Han Uk KIM ; Chull Wan IHM
Korean Journal of Dermatology 2005;43(5):606-618
BACKGROUND: Occurrence of dermatoses are influenced by various environmental factors in the area people live. Jeonbuk province, as well as other parts of Korea, has developed industrially for the past three decades. Until now, no statistical survey on dermatoses in Jeonbuk province has been made. OBJECTIVE: To compare the prevalence and trend of dermatoses by patients' age and time in Jeonbuk province over last 30 years. METHODS: The survey was conducted via the medical records of 55, 335 patients seen in Chonbuk National University Hospital from 1979 to 2002. RESULTS: The study results are summarized as follows: 1. Among the 55, 335 new patients (male 47.2%, female 52.8%), the 15 most common dermatoses were as follows (in order of frequency): dermatophytosis (7.8%), urticaria (7.7%), acne (5.2%), atopic dermatitis (4.9%), alopecia (4.4%), seborrheic dermatitis (4.3%), herpes zoster (4.0%), other eczema (3.9%), vitiligo (3.8%), psoriasis (2.6%), pruritus (2.5%), benign epidermal tumor (2.4%), verruca (2.2%), allergic contact dermatitis (1.7%), and irritant contact dermatitis (1.5%). These comprise 58.9% of the total outpatients. 2. The incidences of atopic dermatitis, alopecia, vitiligo and benign epidermal tumor had increase d (about 5 times), while dermatophytosis and urticaria had decreased (about 0.64 times) during the period. 3. The most frequent dermatoses during the summer season were dermatophytosis and vitiligo. In winter season, they were acne, atopic dermatitis, seborrheic dermatitis, psoriasis, pruritus, benign epidermal tumor and verruca. 4. The occurrence of scabies decreased rapidly from the early 90's and remained at a decreased level. Leprosy and tuberculosis had often occurred during the 80's and then became rare from the 90's. 5. The distribution of patients' age was as follows: The 3rd decade (22.0%), 2nd decade (15.8%), 1st decade (15.5%), 4th decade (14.7%), 5th decade (12.0%), 6th decade (10.3%), 7th decade (2.6%), 8th and above (0.4%). 6. Atopic dermatitis was found to be the most frequent dermatosis in the 1st decade. Vitiligo, benign epidermal tumor, and verruca were the most frequent in the 2nd decade, and urticaria, acne, alopecia, seborrheic dermatitis, psoriasis, allergic contact dermatitis and irritant contact dermatitis in the 3rd decade. Herpes zoster and pruritus were the most frequent in the 6th and 7th decade. CONCLUSION: From medical records between 1979 and 2002, we surveyed kinds, prevalence rates and trends of dermatoses in the Jeonbuk Province. During this period we observed changes in the incidence of the dermatoses with years and seasons. We also found that prevalence rates of the dermatoses were influenced by the time, environment and living conditions of the patients. To the best of our knowledge, this is the first survey on the occurrence of dermatoses Jeonbuk Province of Korea.
Acne Vulgaris
;
Alopecia
;
Dermatitis, Allergic Contact
;
Dermatitis, Atopic
;
Dermatitis, Contact
;
Dermatitis, Seborrheic
;
Eczema
;
Epidemiology
;
Female
;
Herpes Zoster
;
Humans
;
Incidence
;
Jeollabuk-do*
;
Korea
;
Leprosy
;
Medical Records
;
Outpatients
;
Prevalence
;
Pruritus
;
Psoriasis
;
Scabies
;
Seasons
;
Skin Diseases*
;
Social Conditions
;
Statistics as Topic*
;
Tinea
;
Tuberculosis
;
Urticaria
;
Vitiligo
;
Warts
10.Proper Concentration of Diphenylcyclopropenone Solution according to the Anatomical Location and Application Time Interval for the Treatment of Warts.
Chin Ho RHEE ; Han Uk KIM ; Seok Kweon YUN ; Chull Wan IHM ; Hyoun Sung CHOI
Korean Journal of Dermatology 2009;47(5):524-530
BACKGROUND: Topical diphenylcyclopropenone (DPCP) application on a daily or weekly basis has been used for the treatment of warts that affect different sites of the body. The concentration of DPCP for the treatment of warts needs to be determined according to the body site. In addition, the therapeutic response to DPCP application intervals needs to be evaluated for the treatment of warts. OBJECTIVE: The purpose of this study was to determine the minimal DPCP concentration required to induce an elicitation reaction in different body sites of patients with warts and to assess the therapeutic response of wart treatment with daily and weekly applications of DPCP. METHODS: Thirty patients with warts were divided into two groups. Each patient in the two groups was sensitized with 0.1% or 0.2% DPCP. After sensitization, in the first group of patients, DPCP was applied to warts daily. In the second group of patients, DPCP was applied to warts weekly. The initial concentration of DPCP was 0.01% for warts located on the palmoplantar area, periungual area and the dorsum of the hand, knee and upper arm. The initial concentration of DPCP was 0.004% for warts on the face. If no reaction was observed, the DPCP concentration (0.01%, 0.025%, 0.05%, 0.1%, 0.25%, 0.5%, 1% and 2%) was increased stepwise. The minimal concentration of DPCP to induce an elicitation reaction and treatment results were evaluated. RESULTS: The minimal concentrations of DPCP to induce an elicitation reaction were as follows: 0.004~0.01% for the face, 0.01~0.025% for the dorsum of the hand, 0.25~1% for the periungual area and 0.5~2% for the palmoplantar area. The results of weekly application of DPCP were similar as compared to the daily application of DPCP for the treatment of warts. CONCLUSION: Although further studies are needed, our study suggests that the DPCP concentration needs to be adjusted according to the body site and that the weekly use of DPCP may be a convenient alternative to daily use to treat warts.
Arm
;
Cyclopropanes
;
Hand
;
Humans
;
Knee
;
Warts