https://oak.chosun.ac.kr/handle/2020.oak/18958 2025-08-28T14:03:00Z 2025-08-28T14:03:00Z Do-hyung Kim Seong-nyum Jeong Jae-hong Lee https://oak.chosun.ac.kr/handle/2020.oak/19083 2024-04-30T02:13:05Z 2018-12-31T15:00:00Z

Title: Soft tissue augmentation with volume stable collagen matrix: Two cases report Author(s): Do-hyung Kim; Seong-nyum Jeong; Jae-hong Lee Abstract: Soft and hard tissue volume around natural teeth and dental implants, is crucial for esthetics and long-term maintenance. Studies have described guided bone regeneration (GBR), as a predictable method to maintain or augment hard tissue volume, around teeth and dental implants. For soft tissue volume, collagen matrix showed reliable results, and less post-operative pain in many studies. The purpose of this case report, is to assess the outcome of GBR with volume stable collagen matrix (VSCM), around natural teeth and dental implants. In two cases, GBR with VSCM was performed, to augment soft and hard tissue volume around natural teeth and dental implants, respectively. Both cases showed clinically acceptable esthetics and periodontal parameters, up to 6 and 12 months per respective follow up. As our results show, GBR using VSCM can achieve successful outcomes.

2018-12-31T15:00:00Z Bo-kyung Park Ho-keel Hwang Hyoung-hoon Jo https://oak.chosun.ac.kr/handle/2020.oak/19080 2024-04-30T02:13:04Z 2018-12-31T15:00:00Z

Title: Comparison of sealing ability of different obturation techniques in type II root canals Author(s): Bo-kyung Park; Ho-keel Hwang; Hyoung-hoon Jo Abstract: This study evaluated the sealing ability of obturation technique in type II root canal through the comparison of the presence of voids between the single-cone technique using calcium silicate-based sealer and continuous wave compaction technique using resin-based sealer. This study used 30 extracted human maxillary single-rooted premolars that were instrumented with rotary nickel-titanium instrument and randomly assigned to two groups. The root canals were obturated with either single-cone technique using calcium silicate-based sealer or with continuous wave compaction technique using resin-based sealer. The presence of voids in the samples in mesio-distal directions were evaluated using radiographs. There were more voids in the total volume and coronal third of the roots in the single-cone technique group than in the continuous wave compaction technique group. However, there was no significant difference in the percentage volume of voids in the middle and apical thirds of the roots between the two groups. Additionally, there was no significant difference between two groups with respect to external voids. Within limitation of this study, single-cone technique with calcium silicate-based sealer should be used very carefully in type II root canals.

2018-12-31T15:00:00Z Han-chang Yu Dong-woo Kang Young-kyun Kim https://oak.chosun.ac.kr/handle/2020.oak/19078 2024-04-30T02:13:04Z 2018-12-31T15:00:00Z

Title: Long-term observation of immediately-installed implants after extraction: Retrospective clinical study Author(s): Han-chang Yu; Dong-woo Kang; Young-kyun Kim Abstract: The aim of this study was to compare and analyze the survival rate, success rate, and loss of marginal bone of internal and external hexes and presence or absence of microthreads of implant immediately installed after tooth extraction. Forty-four implants were installed in 30 patients, average follow-up period was 80 months, and each product was divided into 3 groups. Group 1 is Osstem TS III implant, Group 2 is Osstem US II implant, and Group 3 is Implantium implant. Panoramic and periapical radiographs were used to measure the marginal bone loss. One implant was removed during the study period, and TS III had a survival rate of 100% and a success rate of 88%, US II had a survival rate of 100% and a success rate of 100%, Implantium had a survival rate of 95% and a success rate of 89%. These results suggest that Osstem and Dentium products show good clinical prognosis when implant is immediately installed after extraction, so it may be a good treatment option in the case of indications.

2018-12-31T15:00:00Z Kyoung-hwa Jung Eun-young Kwon So-yeun Kim Hye-mi Jeon Youn-kyung Choi Sung-ae Son Jeong-kil Park https://oak.chosun.ac.kr/handle/2020.oak/19081 2024-04-30T02:13:04Z 2018-12-31T15:00:00Z

Title: Non-surgical treatment of large periapical lesions Author(s): Kyoung-hwa Jung; Eun-young Kwon; So-yeun Kim; Hye-mi Jeon; Youn-kyung Choi; Sung-ae Son; Jeong-kil Park Abstract: Most periapical lesions can be classified as apical periodontitis, radicular cyst, or abscess. Treatment options for large periapical lesions management range from conventional endodontic treatment to surgical treatment and extraction. Recently, the surgical treatment is only administered if the conventional endodontic therapy fails to restore the integrity of the peripheral tissue. This case report submits the successful treatment of a large periapical lesion using non-surgical endodontic therapy.

2018-12-31T15:00:00Z