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김범진(Beom Jin Kim),고호석(Ho Seok Ko) 한국해양비즈니스학회 2017 해양비즈니스 Vol.- No.36
Cruise Tourism shows its outstanding developments in China, and central government of Korea hence promotes various strategies to develop cruise industry and invite inbound cruise tourists. The research aims to study on the current status and features of major inbound markets of China, search and establish its alternative marketing strategies to invite those markets. The study has reviewed literature researches on cruise tourism and has proposed the marketing implications of Chinese market in its introduction phase.
상악동 거상술을 동반한 상악구치부에 식립된 임플란트 생존율에 대한 후향적 연구
김범진(Beom Jin Kim),이재훈(Jae Hoon Lee) 대한구강악안면외과학회 2010 대한구강악안면외과학회지 Vol.36 No.2
Introduction: Maxillary posterior region, compared to the mandible or maxillary anterior region, has a thin cortical bone layer and is largely composed of cancellous bone, and therefore, it is often difficult to achieve primary stability. In such cases, sinus elevation with bone graft is necessary. Materials and Methods: In this research, 121 patients who had implant placement after bone graft were subjected to a follow-up study of 5 years from the moment of the initial surgery. The total survival rate, 5-year cumulative survival rate and the influence of the following factors on implant survival were evaluated; the condition of the patient (sex, age, general body condition), the site of implant placement, diameter and length of the implant, sinus elevation technique, closure method for osseous window, type of prosthesis and opposing teeth. Results: 1. The 5-year cumulative survival rate of total implants was 90.5%, there was no significant difference between sex, age, the site of implant placement, diameter and length of the implant, sinus elevation technique, and the type of opposing teeth. 2. Patients with diabetes mellitus & osteoporosis and smooth-surfaced machined group & hydroxyapatite (HA)-treated group and homogenous demineralized freeze dried allogenic bone (DFDB) bone graft only group had significantly lower survival rate. 3. With less than 4 mm of residual alveolar ridge height, lateral approach without closing the osseous window resulted in a significantly lower survival rate. 4. Restoration of a single implant showed a significantly lower survival rate, compared to cases where the superstructure was joined with several implants in the area. Conclusion: Patients with diabetes or osteoporosis need longer period of time for osseointegration compared to the normal, and the dentists must be prudent when choosing a surface treatment type and the bone graft material. Also, as the vertical dimension of the residual alveolar ridge can influence the result, staged implant placement should be considered when it seems difficult for the implant to gain primary stability from the residual bone with less than 4 mm of vertical dimension. It is recommended to obdurate the bone window and that the superstructure be connected with several impants in the peripheral area.