https://oak.chosun.ac.kr/handle/2020.oak/18288 2025-08-28T14:03:28Z 2025-08-28T14:03:28Z Yeon-hee Park Ri Ryu Seung-geun Ahn Kyoung-a Kim Jae-min Seo https://oak.chosun.ac.kr/handle/2020.oak/19120 2024-04-30T02:22:20Z 2019-12-31T15:00:00Z

Title: Full-mouth rehabilitation in a Stevens-Johnson syndrome patient with severely worn dentition and abnormal root development Author(s): Yeon-hee Park; Ri Ryu; Seung-geun Ahn; Kyoung-a Kim; Jae-min Seo Abstract: Stevens-Johnson syndrome (SJS) is a cytotoxic immune disorder that causes serious damage to the skin and mucous membranes. SJS is a rare disorder that is triggered by particular medications or infections. De Man (1979), for the first time, described an abnormal root development due to SJS. While systemic complications were frequently reported, the abnormal root development in SJS has been rarely reported as an oral and maxillofacial complication of SJS. In this case report, a 26-year-old woman who had experienced SJS at the age of 9 year exhibited excessive tooth wear on whole dentition. While multiple teeth with incomplete root development showed slightly increased mobility, these teeth were not pathological and were erupted up to their normal functional position. Therefore, full-mouth rehabilitation procedures were completed to protect the worn dentition and improve the masticatory function and anterior esthetics.

2019-12-31T15:00:00Z Jae-seok Kang Hye-yun Heo Mee-kyung Son https://oak.chosun.ac.kr/handle/2020.oak/19119 2024-04-30T02:22:20Z 2019-12-31T15:00:00Z

Title: Preliminary study for fully digitally guided implant treatment with narrow implants in the anterior region Author(s): Jae-seok Kang; Hye-yun Heo; Mee-kyung Son Abstract: The aim of this study was to evaluate the survival rates of narrow implants placed in the maxillary or mandibular anterior region with digitally guided flapless surgery and prosthetic system. Thirty-five narrow implants were placed in the narrow anterior region in 20 patients using the digitally guided flapless surgery. The study subjects were divided into the immediate-loading group and the delayed-loading group. In 3 months, when the alveolar bone was healed, an oral scanner was used to produce zirconia prosthesis, and the final prosthesis was designed with a three-dimensional program. The degree of bone resorption around the implant was recorded at 12 months and 24 months after surgery. The implant fixation stability was measured after placement; the stability was in the range of Implant stability quotient (ISQ) 63-78 (average ISQ, 71.20±3.80). The radiographs obtained at 12 months and 24 months after implantation revealed that the bone around the implant in the fresh extraction socket and around the implant placed in the healed site showed an average bone resorption of 0.33±0.07 mm and 0.18±0.02 mm, respectively. After 2 weeks, one implant was removed because the patient complained of pain with radiolucency in the entire fixture. The overall implant survival rate was 97.1%. Narrow implants placed on the fresh extraction socket or healed site using the digitally guided surgery system were maintained well, with minor marginal bone resorption. As a result, we found that this method is useful for treating anterior teeth on a narrow bone.

2019-12-31T15:00:00Z In-sun Jeong Hong-won Kang Kwi-dug Yun https://oak.chosun.ac.kr/handle/2020.oak/19118 2024-04-30T02:22:20Z 2019-12-31T15:00:00Z

Title: Effect of fluoride release on the polished surface after polishing with a bur containing fluoride Author(s): In-sun Jeong; Hong-won Kang; Kwi-dug Yun Abstract: This study aimed to evaluate the fluoride release amount on the polished surface after polishing with a bur containing fluoride. The point-shape dental burs and disk-shape specimens containing 1,450 ppm fluoride were fabricated. The fluoride released on the dental bur was measured after 1, 3, 7, and 9 days from the disk-shaped specimens (n=5). The point shape dental bur polished the conventional composite resin surface 5 times during 5 seconds at 3,000 rpm. The polished composite resin surface was measured the fluoride release amount after 1, 3, 7, and 9 days. IBM SPSS Statistics ver. 25.0 (IBM Corp., Armonk, NY, USA) was used for statistical analysis. The dental bur containing fluoride were released at 71.68±3.82 ppm fluoride after 1 day, 75.52±2.19 ppm after 3 days, 77.5±1.86 ppm after 7 days, and 77.58±1.30 ppm after 9 days. The polished surface with the point shape dental bur containing fluoride was released at 7.98±0.62 ppm fluoride after 1 day, 8.48±0.65 ppm after 3 day, 8.80±0.41 ppm after 7 days, and 8.75±0.35 ppm after 9 days. The application of dental bur containing 1,450 ppm fluoride showed the possibility of preventing dental caries and exerting an antimicrobial effect.

2019-12-31T15:00:00Z Mi-ri Kim Nan-young Lee Myeong-kwan Jih Ji-woong Kim Won-seok Choi Sang-ho Lee https://oak.chosun.ac.kr/handle/2020.oak/19117 2024-04-30T02:22:20Z 2019-12-31T15:00:00Z

Title: Comparison of the remineralization effect of newly-developed fluoride agents according to the depth of early carious lesions Author(s): Mi-ri Kim; Nan-young Lee; Myeong-kwan Jih; Ji-woong Kim; Won-seok Choi; Sang-ho Lee Abstract: This study aimed to compare the re-mineralization effects of the new fluorine formulations of the 5% sodium fluoride adhesive film (NaF AF) and 38% silver diamine fluoride (SDF) with conventional 5% sodium fluoride varnish (NaF V), and whether the re-mineralization effect of each fluoride formulation is affected by the depth of the initial enamel caries. The re-mineralization effect of the SDF group was significantly greater than those of the NaF V and NaF AF groups (p<0.05). The NaF V and NaF AF groups showed a significantly greater re-mineralization effect than did the control group (artificial saliva) (p<0.05), and there was no difference between those two groups. Also, in the NaF V and NaF AF groups, there was no significant difference in the degree of re-mineralization depending on the depth of the initial enamel caries, but in the SDF group, a significantly greater amount of re-mineralization was observed in deep lesions than in shallow lesions (p<0.05). SDF is expected to expand the range of fluoride for the prevention and treatment of dental caries that were limited to initially shallow caries.

2019-12-31T15:00:00Z