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발치 후 즉시 매식된 서로 다른 두종의 RBM표면 처리된 임플란트에 대한 다기관 후향적 임상연구
박홍주,국민석,김수관,김영균,조용석,최갑림,오영학,오희균,Park, Hong-Ju,Kook, Min-Suk,Kim, Su-Gwan,Kim, Young-Kyun,Cho, Yong-Seok,Choi, Gab-Lim,Oh, Young-Hak,Oh, Hee-Kyun 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.3
Purpose. This multicenter retrospective study was performed to evaluate the survival and success rates of immediate placement of USII and SSII Osstem implant (Osstem implant Co, Korea) on the maxillary and mandibular anterior and premolar areas. Materials and methods. Dental records were obtained in 37 patients who were treated with immediate implantation on the maxillary and mandibular anterior and premolar areas in 6 different clinics. The 98 implants were evaluated both clinically and radiographically using predefined success criteria. Results. There was no failed implant in all patients. The mean follow up period was 24.7 months (ranged from 12 to 58 months), and 25.1 months (ranged from 16 to 35 months) in USII and SSII implants, respectively. The crestal bone loss was 3 mm in 3 USII implants during 41 months, and in 1 SSII implant during 22 months. The overall success rate was 94.2% and 97.7% in USII and SSII implants, respectively. The age, gender, diameter, or length of implants, and type of surgery were not influenced to the success rate of immediate implantation. Conclusion. These results suggest that USII and SSII Osstem implant can be used successfully in immediate implantation on the maxillary and mandibular anterior and premolar areas.
상악동저 거상술 후 Osstem Implant (US II / SS II)의 다기관 후향적 임상연구
국민석(Min-Suk Kook),박홍주(Hong-Ju Park),김수관(Su-Gwan Kim),김영균(Young-Kyun Kim),조용석(Yong-Seok Cho),최갑림(Gab-Lim Choi),오영학(Young-Hak Oh),오희균(Hee-Kyun Oh) 대한구강악안면외과학회 2008 대한구강악안면외과학회지 Vol.34 No.3
Purpose: The purpose of this study was to evaluate the Osstem implants (US II/SS II implants) through the retrospective study for the clinical success rate during the installation of the Osstem implants (US II/SS II implants) by using of the procedures of maxillary sinus floor elevation. Materials and methods: The current study was researched in the 6 medical institutions: Chonnam National University, Chosun University, Pusan DaeDong Hospital, Bundang Seoul National University Hospital, Ap-Seon Clinic, and All Clinic. Based on the total number of 116 patients whose treatment was the installation of the US II/SS II implants with the procedures of the maxillary sinus floor elevation, they were conferred on the dental records of the patients under the joint consultation of the 6 medical institutions. On the dental recording charts, there were included in as the following; the name of the institutions, gender, age, with or without smoking or drinking, with or without the generalized diseases, the height of the alveolar bone on the operational sites, elapsed edentulous state period, the state of the opposed or adjacent teeth, the methods of the maxillary sinus floor elevation, secondary time period for surgery, the lengths, types, and diameters of implants, with or without bone transplantation or the types of bone, postoperative current bone height, current adjacent soft tissue state of the implants, with or without the success of the installations of the implants. We have done our survey with the clinical and radiolographical examinations and dental questionaries. The success and survival rate of the implants was evaluated. Results 1. Total number of the patients with the installation of the US II implants were 62. The 252 numbers of US II implants were installed on the 89 maxillary sinuses. The patient s mean age was 54.1 years old and there were 36 men and 27 women. 2. Total number of patients with the installation of SS II implant were 57. The 165 numbers of SS II implants were planted on the 80 maxillary sinuses. Their mean age was 48.7 years old and there were 37 men and 20 women. 3. The follow-up period was 30.7 months(21-49 mon) on average. The vertical bone loss of installed implants after the procedures of the maxillary sinus elevation was 1.1 mm on average in SS II and 1.3 mm on average in US II. There existed no statistical significance on each group. The mean enlarged bone height after the maxillary sinus floor elevation was 8.2 mm. 4. For the procedures of the maxillary sinus elevation, the Lateral approach technique occupied 87.1%, which was the most used one. In addition, the most frequently used transplanted bone was autogenous bone only which was 72.7% during the maxillary sinus floor elevation. 5. The complication of maxillary sinus floor elevation were perforation of sinus membrane, disesthesia on doner site, exposure of cover screw and exposure of maxillar bone. 6. The survival rate of US II and SS II after maxillary sinus floor elevation was 99.2% and 95.8%, respectively. And the success rate of US II and SS II after maxillary sinus floor elevation was 97.6% and 89.7%, respectively. Conclusion : On the evaluation of the analysis of our study, both US II and SS II implants showed the excellent clinical results by use of the procedures of maxillary sinus floor elevation.
상아질 표면 처리 방법에 따른 Compomer의 전단 결합 강도
오영학,홍찬의 대한치과보존학회 2001 Restorative Dentistry & Endodontics Vol.26 No.2
The purpose of this study was to evaluate the shear bond strength of compomers according to dentin surface treatment. Two materials of compomer were devided into six groups. The compomer used in this study were Dyract AP(D) and F2000(F). Group 1 (DN) and 4(FN) were treated according to manufacturers instructions as control groups. Group 2(DE) and 5(FE) were treased with 37% phosphoric acid and group 3(DA) and 6(FA) were treated with air abrasion unit (80 psi, 50 m aluminum oxide particles) respectively as experimental groups. After dentin surface treatment, compomers were bonded. Completed samples were stored in 100 % humidity, 37C during 7 days. and then, the shear bond strength of specimens were evaluated. The results were as follows : 1.In the case of Dyract AP, the shear bond strength was showed the highest value of 9.10 MPa in dentin surface treatment with air abrasion unit, but there were no significant differences to the other groups. 2.In the case of F2000, the shear bond strength was showed the highest value of 13.51MPa and there were significant differences to the other groups (p<0.05). 3.The shear bond strength of F2000 was higher than Dyract AP in each dentin surface treatment, and in the case of etching and air abrasion, there were significant differences(p<0.05). 4.As a result of observation of SEM, the most of fracture pattern was adhesive failure in group 1(DN), 2(DE) and 4(FN), and cohesive failure in group 3(DA), 5(FE) and 6(FA).