• Title/Summary/Keyword: All-on-4

Search Result 38,703, Processing Time 0.061 seconds

Zirconia ceramic fixed dental prosthesis with all-on-4 concept implants for irradiated maxilla: A case report (방사선 조사된 상악골에서 all-on-4 임플란트에 의해 지지되는 지르코니아 고정성 보철물 수복 증례)

  • Choi, Eun-Joo;Cho, Hye-Won
    • The Journal of Korean Academy of Prosthodontics
    • /
    • v.55 no.2
    • /
    • pp.218-224
    • /
    • 2017
  • The implant-supported fixed dental prosthesis in irradiated maxilla needs meticulous treatment planning due to low bone healing capacity. All-on-4 concept implantation can reduce the number of implants to be placed avoiding bone grafting procedure. Conventionally, prefabricated angled abutments for tilted implants have been used. However, in this case, it was replaced with computer-aided design and computer-aided manufacturing (CAD/CAM) abutment. This case report described all-on-4 concept implantation and fabrication of CAD/CAM zirconia fixed dental prostheses using CAD/CAM titanium abutments.

Application of digital implant system on implant treatment with "all-on-4" concept (디지털 임플란트 시스템을 전용한 "All-on-4" 개념의 임플란트 보철 증례)

  • Kim, Yong-Jun;Jeong, Seung-Mi;Kim, Kyeong-Hee;Fang, Jeong-Whan;Kim, Dae-Hwan;Choi, Byung-Ho
    • The Journal of Korean Academy of Prosthodontics
    • /
    • v.56 no.1
    • /
    • pp.88-94
    • /
    • 2018
  • Recently, digital implant systems are expanding its influence in dental area. Due to technical improvement, they jumped over their limits nowadays. We can use these newest systems to treat edentulous patient, from implant surgery to fabrication of prosthesis. In this case, The patient was a fifty years old female. She had a full edentulous ridge on mandible and wanted to reconstruct occlusion with using implants. We planned to use digital implant system with "all-on-4" concept on mandible and produced surgical guide for flapless implant surgery. After the surgery, we tried to fabricate full arch prosthesis just using a digital devices and confirmed satisfying result.

Assessment of the Non All-in All-out System and the All-in All-out System for Sows and Their Suckling Piglets

  • Jeon, J.H.;Yeon, S.C.;Kim, S.;Kim, D.H.;Chang, H.H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.19 no.6
    • /
    • pp.909-914
    • /
    • 2006
  • The goal of this study was to investigate the behavior of sows and their piglets reared using the non-all-in all-out system and the all-in all-out system during a 3-week lactation period. The 24 Landrace${\times}$Yorkshire sows (range of parity: 2 to 4) and their litters (range of litter size: 8 to 13 piglets) for each treatment (8 sows/replication) were used in this experiment. The sows were housed in farrowing crates ($0.6{\times}2.1m$) located in pens ($2.4{\times}1.8m$) with totally perforated metal flooring. The crates were kept in an experimental room that was thermostatically controlled to approximately $23^{\circ}C$. A 250-W infrared heat lamp was turned on above the creep area during lactation. The sows and piglets were conventionally managed. The animals were recorded during a 24-h period at 1, 4, 7, 14 and 21 days postpartum. The videotapes were scanned every minute to obtain an instantaneous behavioral sample. In the behaviors of sows, lateral recumbency decreased and ventral recumbency increased from 1 day postpartum to 21 days postpartum. In comparison to the AIAOS, sows in the NAIAOS spent much less time on lateral recumbency (p<0.01), whereas they spent much more time on ventral recumbency and sitting at 4 days postpartum (p<0.05 and p<0.05). In the behaviors of piglets, lying increased and unsuccessful suckling decreased until 21 days postpartum. Compared to the AIAOS at 4 days postpartum, piglets in the NAIAOS spent less time lying (p<0.01), whereas they spent much more time walking and unsuccessful suckling (p<0.01 and p<0.05). These results suggest that the all-in all-out system may be preferable to the non-all-in all-out system for promoting welfare.

Changes of immunostimulatory effects by Immu-Forte on mice (면역기능 증강 신물질에 대한 마우스의 면역학적 및 혈액학적 변화)

  • Jung, Ji-Youn
    • Korean Journal of Veterinary Research
    • /
    • v.45 no.4
    • /
    • pp.501-505
    • /
    • 2005
  • Immu-Forte composed of chitosan, ${\beta}-glucan$, manno-oligosaccharide and pangamic acid was evaluated for its effectiveness as a nonspecific immunostimulator in mice. The effects of Immu-Forte were determined by analysis of cytokines using ELISA and phenotype of leukocyte subpopulations using monoclonal antibodies specific to mouse leukocyte differentiation antigens and flow cytometry. All T cells, all B cells, CD4 T cells, CD8 T cells, macrophages, IL-2, IL-4, IL-12 and IFN-r in Immu-Forte A-treated group increased in 1 months posttreatment and were significantly higher (p < 0.05) than that of control at 1 months posttreatment. All T cells, all B cells, CD4 T cells, CD8 T cells, macrophages and IL-2 in Immu-Forte EX-treated low and middle dose groups increased in 1 months posttreatment and were significantly higher (p < 0.05) than that of control at 1 months posttreatment. In the Immu-Forte soybean-treated group, NK cells and IL-4 were significantly higher in middle dose-treated group, and IL-2, IL-4 and IFN-r were significantly higher in low dose-treated group. In the Immu-Forte F-treated group, all T cells, all B cells, CD4 T cells, CD8 T cells, macrophages, NK cells, IL-2, IL-4, IL-12 and IFN-r in high dose-treated group and all T cells, all B cells, CD4 T cells, CD8 T cells, macrophages, IL-2, IL-4, IL-12 and IFN-r in middle dose-treated group and NK cells, IL-2, IL-4, IL-12 and IFN-r in low dose-treated group were significantly higher (p < 0.05) than that of control at 1 months posttreatment. In conclusion, this study has demonstrated that Immu-Forte had an immunostimulatory effect on mice through proliferation and activation of mouse immune cells.

Accuracy of 14 intraoral scanners for the All-on-4 treatment concept: a comparative in vitro study

  • Gozde, Kaya;Caglar, Bilmenoglu
    • The Journal of Advanced Prosthodontics
    • /
    • v.14 no.6
    • /
    • pp.388-398
    • /
    • 2022
  • PURPOSE. This in vitro study aimed to evaluate the accuracy of 14 different intraoral scanners for the All-on-4 treatment concept. MATERIALS AND METHODS. Four implants were placed in regions 13, 16, 23, and 26 of an edentulous maxillary model that was poured with scannable Type 4 gypsum to imitate the All-on-4 concept. The cast was scanned 10 times for each of 14 intraoral scanners (Primescan, iTero 2, iTero 5D, Virtuo Vivo, Trios 3, Trios 4, CS3600, CS3700, Emerald, Emerald S, Medit i500, BenQ BIS-I, Heron IOS, and Aadva IOS 100P) after the polyether ether ketone scanbody was placed. For the control group, the gypsum model was scanned 10 times with an industrial scanner. The first of the 10 virtual models obtained from the industrial model was chosen as the reference model. For trueness, the data of the 14 dental scanners were superimposed with the reference model; for precision, the data of all 14 scanners were superimposed within the groups. Statistical analyses were performed using the Kolmogorov-Smirnov, Shapiro-Wilks, and Dunn's tests. RESULTS. Primescan showed the highest trueness and precision values (P < .005), followed by the iTero 5D scanner (P < .005). CONCLUSION. Some of these digital scanners can be used to make impressions within the All-on-4 concept. However, the possibility of data loss due to artifacts, reflections, and the inability to combine the data should be considered.

Effect of 2,4-Dichlorophenoxyacetic Acid (2,4-D) and Naphthoxyacetic Acid (NOA) on the Biochemical Changes in the Fat Body and Haemolymph of the Silkworm, Bombix mori L.

  • Goudar, K.S.;Kaliwal, B.B.
    • International Journal of Industrial Entomology and Biomaterials
    • /
    • v.3 no.1
    • /
    • pp.7-11
    • /
    • 2001
  • The effect of topical application with 200,400 and 600 $\mu$g/ml 2,4-Dichlorophenoxyacetic Acid (2,4-D) and Naphthoxyacetic Acid (NOA) to the fifth stadium larvae of the silkworm, B. mori on fat body glycogen, protein, total lipids, phospholipids, neutral lipids and haemolymph trehalose and protein has been studied. The fat body glycogen significantly increased in all the groups treated with 2,4-D whereas there is no significantly change in fat body glycogen in all the groups treated with NDA. However, the haemolymph trehalose was significantly increased in all 274-D and NOA treated groups except in the groups treated with 400 and 600 $\mu$g/ml 2,4-D where the increase was not significant.The fat body protein did not show any significant change in all groups treated with 2,4-D and NOA except in the groups treated with 200 $\mu$g/ml 2,4-D where the fat body protein was significantly increased. The total lipids, phospholipids and neutral lipids of the fat body increased significantly in all the groups treated with 2,4-D and NOA when compared with those of the corresponding parameters of the carrier control.

  • PDF

Cardiac Tumors (심장종양 6례 보고)

  • 김병주
    • Journal of Chest Surgery
    • /
    • v.18 no.4
    • /
    • pp.667-672
    • /
    • 1985
  • Primary cardiac tumors are uncommon in all age group. In contrast, tumors metastatic to the heart are significantly more common. On rare occasions, tumor may extend into the heart chamber via inferior vena cava from other parts of the body, such as liver, kidney, and uterus cava. With recent advancement in diagnostic imaging modalities and surgical techniques, cardiac tumors are now potentially curably form of heart disease. The most important factor in diagnosing the tumor is a high index of clinical suspicion. Six patients underwent surgical removal of intracardiac tumor during a 5-year period. The mean age of the 4 women and two men was 40 years [range 23 to 60]. All patients were operated on in the last five years of the studied period. All patients had symptoms varying in duration from 1 month to 4 years [average 13 months]. 2-Dimensional echocardiography contributed most to preoperative diagnosis, confirming presence of an intracardiac tumor in all examined patients. Of the six intracardiac tumor, 5 were myxomas [4 left atrial and 1 right ventricular] and one right atrial metastasis from hepatocellular carcinoma of the liver. In all cases, tumor masses were successfully excised. One patient expired after the operation on account of low cardiac out-put syndrome. Remained one patient among six, tumor mass extended into RA and RV with a stalk via IVC. On later follow-up study showed cold area on liver scan [hepatocellular ca.], so she was transferred to internal medicine, department for chemotherapy. Follow up results showed no signs of tumor recurrence in 4 myxoma cases.

  • PDF

A Study on the Importance of Hospital Nursing Activities (간호업무 중요도에 관한 조사연구)

  • 신경자
    • Journal of Korean Academy of Nursing
    • /
    • v.4 no.1
    • /
    • pp.135-150
    • /
    • 1974
  • A study on the importance of fifty selected nursing activities that classified into four categories of patient care (physical care. psychological aspects of care, observing, reporting and implementing medical care, care for admission and discharge) was carried out from september 25 to October 10, 1973 toward 300 hospitalized patients and 300 professional nurses in four university hospitals in Seoul. The results were obtained as follows The importance score in order on four categories of nursing activities were seen as follows : 1. in physical care activities patients noted; moderately important 35.0% extremely important 20.5% very important 19.3% slightly important 18.6% not at all important 6.6% nurses noted: moderately important 41.5% very important 29.4% extremely important 23.5% slightly important 6.2% not at all important 3.4% 2. in activities involving psychological aspects of care patients noted: moderately important 33.4% very important 25.2% extremely important 23.2% slightly important 14.3% not at all important 3.9% nurses noted: moderately important 42.3% very important 34.8% extremely important 16.0% slightly important 6.2% not at all important 0.7% 3. in activities involving observing, reporting, and implementing medical care patients noted ; extremely important 35.9% moderately important 28.0% very important 26.0% slightly important 8.4% not at all important 1.7% nurses noted : extremely important 38.1% very important 31.8% moderately important 26.1% slightly important 3.6% not at all important 0.4% 4. in activities preparing for admission and discharge patients noted: moderately important 35.8% extremely important 24.5% very important 23.5% extremely important 12.5% not at all important 3.7% nurses noted: moderately important 47.6% very important 33.1% extremely important 12.5% slightly important 6.0% not at all important 0.8%

  • PDF

ON THE HOMOLOGY OF THE MODULI SPACE OF $G_2$ INSTANTONS

  • Park, Young-Gi
    • Communications of the Korean Mathematical Society
    • /
    • v.9 no.4
    • /
    • pp.933-944
    • /
    • 1994
  • Let $\pi : P \to S^4$ be a principal G-bundle over $S^4$ whose the structure group G is a compact, connected, simple Lie group. Since $\pi_3(G) = \pi_4 (BG) = Z$, we can classify the principal bundle $P_k$ over $S^4$ by the map $S^4 \to BG$ of degree k. Atiyah and Jones [2] showed that $C_k = A_k/g^b_k$ is homotopy equivalent to $\Omega^3_k G \simeq \Omega^4_k BG$ where $A_k$ is the space of the all connections in $P_k$ and $g^b_k$ is the based gauge group which consists of all base point preserving automorphisms on $P_k$. Here $\Omega^nX$ is the space of all base-point preserving continuous map from $S^n$ to X. Let $M_k$ be the space of based gauge equivalence classes of all connections in $P_k$ satisfying the Yang-Mills self-duality equations, which we call the moduli space of G instantons.

  • PDF

Purification of Deoxycytidine Kinase from Various Human Leukemic Cells by End-product Analog Affinity Chromatography

  • Kim, Min-Young
    • BMB Reports
    • /
    • v.28 no.4
    • /
    • pp.281-289
    • /
    • 1995
  • Homogeneous human deoxycytidine kinase was purified in one step from a variety of spontaneous human leukemic cells (T-ALL, B-ALL, B-CLL, AML, CML), and from cultured T-lymphoblast cells (MOLT-4) using the newly developed affinity medium, $dCp_4$-Sepharose. Starting with an ammonium sulfate fraction, purification was achieved in one step with the kinase being eluted from a column by the end product inhibitor, dCTP. The purified deoxycytidine kinase from T-ALL cells phosphorylated deoxyadenosine and deoxyguanosine, as well as deoxycytidine. The enzyme purified from T-ALL and B-CLL cells yielded one major band with a molecular weight of 52 kDa determined by SDS-polyacrylamide gel electrophoresis. AML and CML cells yielded one 52 kDa band and an extra band of 30 kDa molecular weight. On the other hand, B-ALL and MOLT-4 cells showed a low molecular weight band of 30 kDa only. However, the electrophoretic mobilities of enzymatic activity in 12% non-denaturing gels were identical for the dCyd kinase from all different kinds of leukemic cell lines, except that the B-ALL, B-CLL, and MOLT-4 cell preparations had an extra minor peak, all at the same position. dAdo and dCyd phosphorylating activities comigrated indicating that these activities are all associated with the same protein. Two new methods, a disk implantation method and a nitrocellulose powder method were used with a small amount of enzyme protein to raise polyclonal antibodies against dCyd kinase purified from T-ALL cells.

  • PDF