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All-ceramic versus titanium-based implant supported restorations: Preliminary 12-months results from a randomized controlled trial

  • Weigl, Paul;Trimpou, Georgia;Grizas, Eleftherios;Hess, Pablo;Nentwig, Georg-Hubertus;Lauer, Hans-Christoph;Lorenz, Jonas
    • The Journal of Advanced Prosthodontics
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    • v.11 no.1
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    • pp.48-54
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    • 2019
  • PURPOSE. The aim of the present randomized controlled study was to compare prefabricated all-ceramic, anatomically shaped healing abutments followed by all-ceramic abutments and all-ceramic crowns and prefabricated standard-shaped (round-diameter) titanium healing abutments followed by final titanium abutments restored with porcelain-fused-to-metal (PFM) implant crowns in the premolar and molar regions. MATERIALS AND METHODS. Forty-two patients received single implants restored either by all-ceramic restorations (test group, healing abutment, final abutment, and crown all made of zirconia) or conventional titanium-based restorations. Immediately after prosthetic incorporation and after 12 months of loading, implant survival, technical complications, bone loss, sulcus fluid flow rate (SFFR) as well as plaque index (PI) and implant stability (Periotest) were analyzed clinically and radiologically. RESULTS. After 12 months of loading, an implant and prosthetic survival rate of 100% was observed. Minor prosthetic complications such as chipping of ceramic veneering occurred in both groups. No statistical significant differences were observed between both groups with only a minimum of bone loss, SFFR, and PI. CONCLUSION. All-ceramic implant prostheses including a prefabricated anatomically shaped healing abutment achieved comparable results to titanium-based restorations in the posterior region. However, observational results indicate a benefit as shaping the peri-implant soft-tissue with successive provisional devices and subsequent compression of the soft tissue can be avoided.

Influence of polishing systems on roughness and color change of two dental ceramics

  • Maciel, Lucas Campagnaro;Silva, Carlos Frederico Bettcher;de Jesus, Ricardo Huver;da Silva Concilio, Lais Regiane;Kano, Stefania Carvalho;Xible, Anuar Antonio
    • The Journal of Advanced Prosthodontics
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    • v.11 no.4
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    • pp.215-222
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    • 2019
  • PURPOSE. To evaluate the polishing effect on roughness and color change of pressed and layering ceramics after immersion in coffee solution. MATERIALS AND METHODS. 88 ceramic discs ($1.0mm{\times}10.0mm$) were manufactured - 44 nano-fluorapatite layering ceramics (IPS e.max Ceram. Group C) and 44 pressed lithium disilicate ceramic discs (IPS e. max Press - Group P). Each group was divided into 4 subgroups according to surface treatments: (G) Glaze, (S) Shofu polishing system (Shofu Inc.), (E) Edenta AG polishing System, (KG) $30-{\mu}m$ diamond granulation tip. Surface roughness (Ra) and color change (${\Delta}E$) measurings after the surface treatments were performed, before and 12 days after the immersion in coffee solution. A samples' qualitative analysis was conducted with a scanning electron microscopy (SEM). Data were statistically-treated with one-way-ANOVA and Duncan's tests, apart from paired t-test and Pearson's correlation test (${\alpha}=5%$). RESULTS. The decrescent order, both for surface roughness (Ra) and ${\Delta}E$ for both ceramics were: KG > E > S > G (P<.05). With exception for PG and CG subgroups, which did not present statistical difference between them, all other pressed ceramics subgroups presented smaller Ra values and greater ${\Delta}E$ values than the layering ceramics subgroups (P<.05). CONCLUSION. Although mechanical polishing systems presented intermediate Ra values, their colors were considered clinically acceptable. There is a strong correlation between the surface roughness and the color change of tested ceramics.

A Case Report of Intergrative Korean Medicine on Paralytic Ileus Caused by Ovarian Cancer (난소암으로 유발된 마비성 장폐색에 대한 한의 복합치료 치험 1례)

  • Choi, Min-Young;Kim, Gyu-Tae;Park, Nam-Gyeong;Lee, Jin-Moo;Lee, Chang-Hoon;Jang, Jun-Bock;Hwang, Deok-Sang
    • The Journal of Korean Obstetrics and Gynecology
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    • v.34 no.4
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    • pp.163-174
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    • 2021
  • Objectives: The purpose of this study is to report the improvement of paralytic ileus caused by ovarian cancer after integrative Korean Medicine treatment. Methods: The patient who complained paralytic ileus caused by ovarian cancer was treated by acupuncture, electroacupunture, moxibustion, and herbal medicine for 13 days. The effect of treatment was evaluated by abdominal X-ray, dietary change of patient, Numeral Rating Scale (NRS) and blood examination including white blood cell (WBC), creactive protein(CRP), erythrocyte sedimentation rate (ESR), aspartate aminotransferase (AST), alanine aminotransferase (ALT) and electrocytes. Results: After the treatment, the patient could have taken with her mouth. In addition, the clinical symptoms were improved with no adverse event. Conclusions: This case shows that paralytic ileus caused by ovarian cancer was improved after the integrative Korean Medicine treatment. Therefore, it can be effective an complementary option for paralytic ileus caused by ovarian cancer.

Horizontal instability after acromioclavicular joint reduction using the two-hole technique is preferred over the loop technique: a single-blind randomized clinical trial

  • Mardani-Kivi, Mohsen;Asadi, Kamran;Leili, Ehsan Kazemnejad;Hashemi-Motlagh, Keyvan;Izadi, Amin;Pishgahpour, Mona;Darabipour, Zohre
    • Clinics in Shoulder and Elbow
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    • v.25 no.3
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    • pp.224-229
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    • 2022
  • Background: Most acromioclavicular joint (ACJ) injuries are caused by direct trauma to the shoulders, and various methods and techniques are used to treat them; however, none of the options can be considered the gold standard. This study examines the horizontal stability of the ACJ after a complete dislocation was repaired using one of two Ethibond suture techniques, the loop technique and the two holes in the clavicle technique. Methods: In this single-blind, randomized clinical trial, 104 patients diagnosed with complete ACJ dislocation type V were treated using Ethibond sutures with either the loop technique or the two holes in the clavicle technique. Horizontal changes in the ACJ were radiographically assessed in the lateral axial view, and shoulder function was evaluated by the Constant (CS) and Taft (TS) scores at intervals of 3, 6, and 12 months after surgery. Results: The horizontal stability of the ACJ was better with the two-hole technique than the loop technique at all measurement times. CS and TS changes showed a significant upward trend over time with both techniques. The mean CS and TS at the final visit were 95.2 and 11.6 with the loop technique and 94.0 and 11.9 with the two-hole technique, respectively. The incidence of superficial infections caused by the subcutaneous pins was the same in the two groups. Conclusions: Due to the improved ACJ stability with the two-hole technique, it appears to be a more suitable option than the loop technique for AC joint reduction.

Severe congenital neutropenia mimicking chronic idiopathic neutropenia: a case report

  • Juhyung Kim;Soyoon Hwang;Narae Hwang;Yeonji Lee;Hee Jeong Cho;Joon Ho Moon;Sang Kyun Sohn;Dong Won Baek
    • Journal of Yeungnam Medical Science
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    • v.40 no.3
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    • pp.283-288
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    • 2023
  • Severe chronic neutropenia is classified as severe congenital, cyclic, autoimmune, or idiopathic. However, there is a lot of uncertainty regarding the diagnosis of severe congenital neutropenia (SCN) and chronic idiopathic neutropenia, and this uncertainty affects further evaluations and treatments. A 20-year-old man presented with fever and knee abrasions after a bicycle accident. On admission, his initial absolute neutrophil count (ANC) was 30/µL. He had no medical history of persistent severe neutropenia with periodic oscillation of ANC. Although his fever resolved after appropriate antibiotic therapy, ANC remained at 80/µL. Bone marrow (BM) aspiration and biopsy were performed, and a BM smear showed myeloid maturation arrest. Moreover, genetic mutation test results showed a heterozygous missense variant in exon 4 of the neutrophil elastase ELANE: c597+1G>C (pV190-F199del). The patient was diagnosed with SCN. After discharge, we routinely checked his ANC level and monitored any signs of infection with minimum use of granulocyte colony-stimulating factor (G-CSF), considering its potential risk of leukemic transformation. Considering that SCN can be fatal, timely diagnosis and appropriate management with G-CSF are essential. We report the case of a patient with SCN caused by ELANE mutation who had atypical clinical manifestations. For a more accurate diagnosis and treatment of severe chronic neutropenia, further studies are needed to elucidate the various clinical features of ELANE.

A Case of Cerebral Infarction Patient Complaining Post-Stroke Aggression Accompanying Anxiety Treated with Combined Korean Medical Treatment (뇌졸중 후 불안을 동반한 공격성을 호소하는 뇌경색 환자에 대한 복합 한의치험 1례)

  • Dabin Lee;Seon-Uk Jeon;Geun Young Kim;Ki-Ho Cho;Sang-Kwan Moon;Woo-Sang Jung;Seungwon Kwon;Han-Kyul Lee
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.24 no.1
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    • pp.67-76
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    • 2023
  • Post-stroke aggression refers to aggressive behaviors and languages which are occurred after stroke. In stroke patients, over 15% suffer from the anger and the symptom lowers the quality of life of the patients, family, and caregivers. After diagnosing post-stroke aggression, selective serotonin re-uptake inhibitor(SSRI) and beta-blocker, beta adrenergic agonist treatment usually underwent to treat the anger and anxiety of the patient. In the present case, a 81-year-old female patient with post-stroke aggression underwent Korean medical treatment by Jodeungsan and Ukgansan for 49 days. The effect of the treatment was assessed with State-Trait Anger Expression Inventory(STAXI) per a week, roaming time per a week and roaming frequency per a week. After the treatment, STAXI score, roaming time, and roaming frequecy decreased, and the patient could successfully cease to take beta-blocker, which she started to take for treating her aggression, without any side-effects. This case report suggests that Ukgansan might be an effective option with post-stroke aggression patients taking medication including beta-blocker.

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A Case of Generalized Edema in a Patient after COVID-19 Vaccination Improved by a Combined Korean-Western Medicine Approach (COVID-19 백신 접종 후 발생한 전신 부종에 대한 한양방 복합치료 치험 1례)

  • Youngseon Lee;Somin Jung;Han-gyul Lee;Ki-ho Cho;Sang-kwan Moon;Woo-sang Jung;Seung-won Kwon
    • The Journal of Internal Korean Medicine
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    • v.44 no.5
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    • pp.957-967
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    • 2023
  • Background: According to Vaccine Adverse Events Reporting System data, generalized edema followed by the COVID-19 vaccine is uncommon, with only 333 reported cases, and of those, 224 (69%) are associated with the Pfizer-BioNTech vaccine. Case report: A 76-year-old male patient with heart failure with preserved ejection fraction presented with spontaneous generalized edema and otherwise normal cardiac exams following administration of BNT162b2 (Pfizer-BioNTech) COVID-19 vaccination that had lasted for approximately 60 days and was treated successfully using Korean medicine treatment. After the administration of Korean medicine treatment, the patient's symptoms in the bilateral limbs were dramatically controlled, without recurrence, for 2 months. As a result, generalized edema, which had been present for approximately 50 days, dramatically improved. Conclusion: This clinical case study suggests that a Korean medicine approach with Mokbangki-tang and Oryeong-san might be effective for the pleural effusion resolution of generalized edema after COVID-19 vaccination.

The Role of Radiosurgery in Patients with Brain Metastasis from Small Cell Lung Carcinoma

  • Jo, Kwang-Wook;Kong, Doo-Sik;Lim, Do-Hoon;Ahn, Yong-Chan;Nam, Do-Hyun;Lee, Jung-Il
    • Journal of Korean Neurosurgical Society
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    • v.50 no.2
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    • pp.99-102
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    • 2011
  • Objective : The purpose of this retrospective study was to evaluate the outcome of gamma knife radiosurgery (GKRS) and/or whole brain radiation therapy (WBRT) for the treatment of small cell lung carcinoma (SCLC) metastasis to the brain. Methods : From 2000 to 2010, 50 patients underwent GKRS for metastatic brain lesions originating from SCLC. Among these patients, 11 received prophylactic cranial irradiation (PCI) before the development of metastatic lesions (PCI group), and GKRS was performed as an initial treatment for newly diagnosed lesions in 12 patients who had not received PCI (primary GKRS group). In addition, GKRS was performed as a salvage treatment for progressive lesions after WBRT in 27 patients (salvage GKRS group). The medical records and imaging data of all patients were retrospectively analyzed. Results : The overall survival of the 50 patients was 20.8 months (range 1-53) after the diagnosis of primary tumor and 12.0 months (range 1-47) after the development of cerebral metastasis. Median survival after GKRS was 4.8 months (range 1-15) in the PCI group, 4.6 months (range 0-18) in the primary GKRS group, and 7.6 months (range 0-33) in the salvage GKRS group. Further treatment for progressive lesions after GKRS was necessary in 15 patients, after a mean interval of 3.8 months. Causes of death were systemic organ failure in 15 patients, deterioration of neurological state in 13 patients, and unknown or combined causes in 16 patients. The local control rate of the lesions treated with GKRS was 76.4% (decreased in 13 patients and stable in 16 patients at the final imaging follow-up (mean 5.60 months). Conclusion : GKRS is an effective local treatment for brain metastasis from SCLC both as an initial treatment for newly diagnosed lesions after PCI and as a salvage treatment for recurrent or progressive lesions. However, the survival benefit is not significant because most patients die of systemic multi-organ failure with a short life expectancy.

Effects of Induced Microcurrent Shoes on Change of Blood Circulation to patients with Chronic Plantar (미세전류발생 신발 착용이 만성 족저근막염 환자의 혈류량 변화에 미치는 영향)

  • Lee, Yoon-Mi;Choi, Sang-Joon;Cheng, Goh Ah;Cho, Mi-Suk;Cho, Jeong-Sun;Cho, Yong-Ho;Park, So-Hyun;Park, Rae-Joon
    • The Journal of Korean Physical Therapy
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    • v.18 no.3
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    • pp.71-78
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    • 2006
  • Purpose: The purpose of this study was to investigate how induced microcurrent shoes influenced changes of the blood circulation in patients with Plantar Fasciitis. Methods: Initially, the subjects were comprised of 5 males and 5 females, who agreed with this research and are more than fifty years old, but 4 of those were dropped during the experiment. They all have plantar fasciitis and pain on their feet. Subjects wore the induced microcurrent shoes for more than 4 hours everyday during 4 weeks. When they wore those shoes, they also wore the specially produced shocks made of silver-mixed thread and they were asked to avoid intense exercise. Assessments were carried out before and after walking on a treadmill and we measured changes between the test before and after 4 weeks. In the examination of the before test, general shoes were used, and in the examination of the after test, induced microcurrent shoes were used. Temperature difference was measured by thermograpy DOREX spectrum 9000MB(USA). Subjects walked total 20 minutes and during gait, the walking rate on a treadmill was increased from 2Km/h to 3Km/h after 10 minutes. We measured plantar temperature by thermograpy especially both heel, 1st, and 5th metatarsal areas. Results: Firstly, in comparison of the blood circulation on the left and right foot at 0 week and 4 weeks, it tended toward increasing blood circulation but there was. no statistically significant difference (p>0.05). Secondly, in comparison of the blood circulation before and after treadmill with the induced microcurrent shoes, the blood circulation of the heel and the 5th area on the right foot was increased to all subjects(p<0.05). Conclusion: The results of this study revealed that subjects showed tendency to increase blood circulation in both right and left feet after wearing microcurrent shoes and specially after walking treadmill at 4 weeks. Therefore induced microcurrent shoes are useful to improve blood circulation for patients with plantar fasciitis.

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THE EFFECT OF ABUTMENT HEIGHT ON SCREW LOOSENING IN SINGLE IMPLANT-SUPPORTED PROSTHESES AFTER DYNAMIC CYCLIC LOADING

  • Kim Nam-Gun;Kim Yung-Soo;Kim Chang-Whe;Jang Kyung-Soo;Lim Young-Jun
    • The Journal of Korean Academy of Prosthodontics
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    • v.42 no.6
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    • pp.664-670
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    • 2004
  • Statement of problem. One of the common problems of dental implant prosthesis is the loosening of the screw that connects each component, and this problem is more common in single implant-supported prostheses with external connection. Purpose. The purpose of this study was to examine the changes of detorque values of abutment screws with external connection in different abutment heights. Materials and methods. After cyclic loading on three different abutment heights, detorque values were measured. Abutments were retained with titanium abutment screws tightened to 30 Ncm (30.5 kgmm) with digital torque gauge as recommended by the manufacturer. Replacing abutments, implants and titanium abutment screws with new ones at every measurement, initial detorque values were measured six times. In measuring de torque values after cyclic loading, Avana Cemented Abutments of 4.0 mm collar, 7.0 mm height (Osstem Co., Ltd., Seoul, Korea) were used with three different lengths of 5.0, 8.0, 11.0 mm. Shorter abutments were made by milling of 11.0 mm abutment to have the same force-exercised area of 4.5 mm diameter. Sine curve force (20N-320N, 14Hz) was applied, and detorque values were measured after cyclic loading of 2 million times by loading machine. Detorque values of initial and after-loading were measured by digital torque gauge. One-way ANOVA was employed to see if there was any influence from different abutment heights. Results. The results were as follows: 1. The initial detorque value was 27.8$\pm$0.93 kgmm, and the ratio of the initial detorque value to the tightening torque was 0.91(27.8/30.5). 2. Measured detorque values after cyclic loading were declined as the height of the abutment increased, that was, 5.0 mm; 22.3$\pm$0.82 kgmm, 8.0 mm; 21.8$\pm$0.93 kgmm, and 11.0 mm; 21.3$\pm$0.94 kgmm. 3. One-way ANOVA showed no statistically significant differences among these (p>0.05). 4. Noticeable mobility at the implant-abutment interface was not observed in any case after cyclic loading at all.