https://oak.chosun.ac.kr/handle/2020.oak/18945 2025-08-29T04:36:53Z 2025-08-29T04:36:53Z Dong-kie Kim Kyong-mi Goo Ka-young Kim https://oak.chosun.ac.kr/handle/2020.oak/18991 2024-04-29T07:26:49Z 2015-12-31T15:00:00Z

Title: Analysis on Korean academic journals on oral health education for elementary school students under the Strengthening the reporting of observational Studies in Epidemiology (STROBE) Author(s): Dong-kie Kim; Kyong-mi Goo; Ka-young Kim Abstract: The purpose of this study is to analyze Korean academic journals on oral health education for elementary school students, by applying `Strengthening the Reporting of Observational Studies in Epidemiology (STROBE)`. Based on the reporting guidelines, this study seeks to explore ways to improve the observational quality of a study report. A total of 316 potential relevant papers on oral health for elementary school students, published in domestic articles from the 1970s to July 2016, were screened. Of these, 35 articles were selected according to the eligibility criteria. The selected papers were analyzed by the 27 evaluation items in 6 areas of the STROBE, categorized into three groups - inclusion (yes), partial inclusion (partly), and exclusion (no). The item-specific report guidelines were qualitatively analyzed by introducing a 5-point scale form to the scope of inclusion. Of the 27 items analyzed in total, 14 (51.9%) STROBE items were categorized at least 50% (fair) or higher in the 5-point scale. Five (18.5%) items showed 20~49% (insufficient) inclusion: these include data source and analysis method, study size, and variable-explanation in the methods area; descriptive data in the result area; and conclusion-generalization or suggestion in the discussion area. Qualities in 8 (29.6%) items had less than 20% (much insufficient) inclusion: criteria for participant selection, and source and method (Item 6a) in the method area; bias-source and disruption variable (Item 9), statistical methods- analysis plan according to study purpose (Item 12a), number of participants in the result area - systematic classification (Item 13a) and flow diagram (Item 13c), final results (Item 16a), continuous variable-categorization (Item 16b) and funding in the other information area (Item 22). Based on the above findings, it is necessary that in future, observational study reports that require improvement need to be described according to the STROBE, and thus elevate the quality of a research report.

2015-12-31T15:00:00Z Ha-young Cho Sung-hoon Lim Ji-su Oh Sung-nam Gang https://oak.chosun.ac.kr/handle/2020.oak/18992 2024-04-29T07:26:49Z 2015-12-31T15:00:00Z

Title: The correction of roll-type asymmetry using surgery first approach and minimal orthodontic treatment Author(s): Ha-young Cho; Sung-hoon Lim; Ji-su Oh; Sung-nam Gang Abstract: Conventionally, pre-surgical orthodontic treatment has been considered mandatory to eliminate transverse dental compensations in patients with severe facial asymmetry. Recently, surgery-first approach has been gaining popularity. However, this approach requires 3-D simulation of movements of bony segments during surgery because the occlusion before decompensation cannot be used as a guide for surgical planning. In some roll-type asymmetries, transverse dentoalveolar compensation can be resolved by the roll correction of both jaws. Antero-posterior dentoalveolar compensation also can be resolved by the clockwise rotation of both jaws. In this case report, we described a surgery-first approach including 3-D surgical simulation, fabrication of CAD/CAM surgical splint, and minimal postsurgical orthodontic treatment in a patient with roll-type asymmetry and mandibular prognathism. To select this kind of approach, the possibility of decompensation using roll correction and clockwise rotation should be evaluated using 3-D simulation of the surgery.

2015-12-31T15:00:00Z Hyun-chun Park Su-gwan Kim Ji-su Oh Jae-seek You Won-gi Kim Hyung-seop Lim Bo-su Shin https://oak.chosun.ac.kr/handle/2020.oak/18993 2024-04-29T07:26:49Z 2015-12-31T15:00:00Z

Title: Early removal of mini-plate for correction of condyle position in patient of orthognathic surgery Author(s): Hyun-chun Park; Su-gwan Kim; Ji-su Oh; Jae-seek You; Won-gi Kim; Hyung-seop Lim; Bo-su Shin Abstract: Orthognathic surgery has recently increased in patients with maxillofacial deformity. However, it has several post-operative complications, such as neurosensory changes of the lower lip, mandibular condylar displacement, and facial asymmetry. Studies show that the condylar position often changes after bilateral sagittal split ramus osteotomy (BSSRO), due to various factors, including inadequate mandibular movement during the operation, methods used for internal fixation, and masticatory muscle function. Condylar displacement can cause abnormal condylar movement, which can induce temporomandibular disorder or relapse due to condylar resorption. This study was conducted to evaluate changes in the condyle position after removal of the mini-plate at 2 or 4 weeks after orthognathic surgery.

2015-12-31T15:00:00Z Kyu-ree Sim Ji-hye Jung Hoon-sang Chang https://oak.chosun.ac.kr/handle/2020.oak/18990 2024-04-29T07:26:49Z 2015-12-31T15:00:00Z

Title: Color evaluation of composite resin using dental colorimeter according to the specimen size Author(s): Kyu-ree Sim; Ji-hye Jung; Hoon-sang Chang Abstract: The purpose of this study was to evaluate the color of a single shaded composite resin of various specimen sizes, using a dental colorimeter. Four separate transparent acrylic plates were prepared, 40 mm × 20 mm in size and 2 mm in thickness, and two holes of 6.5 mm, 8.5 mm, 10.5 mm, or 12.5 mm in diameter were drilled on each different plate. The holes were filled with A3 shade flowable composite resin (DenFil Flow), and lightly cured (n = 10). After separation of the specimens from the plates, CIE L*a*b* values of the resin specimens were measured with a dental colorimeter (ShadeEye NCC). Data were analyzed with one-way ANOVA and Tukey HSD (p<0.05). The color difference (ΔE) between the resin specimens was also calculated. The L* values and b* values were significantly different between 6.5 and 8.5 mm specimens, and between 10.5 and 12.5 mm specimens. The a* values significantly differed among the various specimen sizes. The ΔE between pairs of various-sized specimens ranged from 0.3 to 2. The highest ΔE difference was observed between 6.5 mm and 12.5 mm specimens. CIE L*a*b* values of single-shade composite resin specimens were significantly different for various specimen sizes when measured with a colorimeter. Also, the color difference (ΔE) between pairs of various-sized specimens (ranging from 0.3 to 2) is indicative of perceptible differences among resin specimens. Therefore, when using a dental colorimeter, the specimen size of a composite resin needs to be carefully monitored for consistent CIE L*a*b* values.

2015-12-31T15:00:00Z