• 한국치위생학회지
• /
• 제7권2호
• /
• pp.189-196
• /
• 2007

A study of the J health college dept of dental hygiene practice vistant a total of 35 supragingival calculus and subgingival calculus picking SEM observation and bacteria identification of the result are followings. 1. As observed by dental calculus SEM, the surface roughness appeared as peaks, valleys, and pits. 2. About bacteteria morphology blood agar plate small green zone partial hemolysis colony streptococcus observation 3. Isolated colony gram stain gram are positive display 4. Supragingival calculus at Lactococcus lactis spp. Leuconostoc spp. Streptococcus mitis, Aerococcus viridans bacteria 1, 3, 3, 16 species detection 5. Subgingival calculus at Aerococcus viridans, Leuconostoc spp. bacteria 5, 1 species detection.

• 대한치과의사협회지
• /
• 제52권9호
• /
• pp.541-549
• /
• 2014

The restorative treatment using titanium implants has become a standard procedures in everyday clinical practice. However, there are several concerns about the use of titanium as a materials. Above all, the grayish metal color provokes esthetic problems when the soft tissue around the implants is not optimal. Recently, zirconia has been emerging as an alternative to titanium due to its white color and superior physicochemical properties. In this paper, the current findings about zirconia implants was reviewed based on the results from animal and clinical experiments. In addition, the immediate implantation protocols using the natural tooth form zirconia implants was introduced as a novel procedures and future perspectives were discussed.

• 한국임상보건과학회지
• /
• 제1권2호
• /
• pp.11-20
• /
• 2013

Purpose. A huge proportion of adults in korea, workers chronic disease risk factors have been growing every year, these are closely related to oral health. thus, through the study of the relationship between workers oral health behavior and chronic disease risk factors. Methods. The subjects were 4,600 workers volunteering at the oral health education program part of the industrial health education of some area work places. Data were analyzed by descriptive statistics, chi-square test, Rogistic regression analysis. Results. The results of chronic disease risk factor according to oral health practice behaviors show that currently drinking and smoking, not visiting to the dentist for last year, fewer toothbrushing were associated with chronic disease risk factors. This result was statistically significant as well.(p<0.05). Risk factors influencing chronic disease were gender, age, job period, dental clinic visiting, the number of toothbrushing, perceived oral health state, smoking, and drinking, these were statistically significant as well(p<0.05). Conclusions. Chronic disease that could threaten workers health was related with the oral health practice behavior. Therefore through factors identification affecting general health and oral health, dental care providers aims to increase workers awareness of health care behavior and lifestyle and to suggest periodical health education promotion program for high risk workers who exposed to risk factors of disease within workplace.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제41권
• /
• pp.33.1-33.7
• /
• 2019

Background: The concept of the ideal morphology for the alveolar bone form is an important element to reconstruct or restore the in maximizing esthetic profile and functional alveolar bone restoration. The purpose of this preliminary study is to evaluate the normal alveolar bone structure to provide the standard reference and guide template for use in diagnosing for implant placement, determining the correct amount of bone augmentation in actual clinical practice and producing prostheses based on three-dimensional imaging assessment of alveolar bone. Methods: This study was included 11 men and 11 women (average age, 22.6 and 24.5 years, respectively) selected from among 127 patients. The horizontal widths of alveolar bone of maxilla and mandible were measured at the crestal, mid-root, and root apex level on MDCT (multi-detector computed tomography) images reconstructed by medical imaging software. In addition, tooth dimensions of the central incisors, canines, second premolars, and first molars of maxilla and mandible, including the horizontal width of the interdental alveolar bone crest, were also measured and statistically analyzed. Results: The horizontal alveolar bone width of the palatal side of maxilla showed a distinct increment from the alveolar bone crest to the apical region in both anterior and posterior areas. The average widths of the maxillary alveolar ridge were as follows: central incisor, 7.43 mm; canine, 8.91 mm; second premolar, 9.57 mm; and first molar, 12.38 mm. The average widths of the mandibular alveolar ridge were as follows: central incisor, 6.21 mm; canine, 8.55 mm; second premolar, 8.45 mm; and first molar, 10.02 mm. In the buccal side, the alveolar bone width was not increased from the crest to the apical region. The horizontal alveolar bone width of an apical and mandibular border region was thinner than at the mid-root level. Conclusions: The results of the preliminary study are useful as a clinical guideline when determining dental implant diameter and position. And also, these measurements can also be useful during the production of prefabricated membranes and customized alveolar bone scaffolds.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제35권2호
• /
• pp.107-111
• /
• 2013

Careful examination of the oral cavity may reveal findings indicative of an underlying systemic condition, and allow for early diagnosis and treatment. Examination should include evaluation for mucosal changes, periodontal inflammation and bleeding, and general condition of the teeth. A 12-year-old man visited for molar pain during 3 months. He was diagnosed with having a possibility of hematopoietic malignancy, showing the loss of lamina dura, destruction of bony crypt, and high attenuation in the bone marrow. He was referred to department of pediatrics, additional study, including peripheral cell morphology and bone marrow exam, were performed, and diagnosed as acute lymphoblastic anemia. Despite chemotherapy to cure leukemia, he was expired 8 months after initial diagnosis. The purpose of this report is to promote and evoke the awareness regarding an initial examination of the dentist to make an effort to acquire accurate knowledge and information about life-threatening disease in usual dental practice.