1.Treating Apraxia of Speech (AOS) using the Motor Learning Guided (MLG) Approach: A case report.
Brain & Neurorehabilitation 2011;4(1):64-68
The treatments of AOS have been debated since the late 1960s. Despite a considerable amount of study of intervention approaches to AOS, the effectiveness and efficacy of the treatment of AOS is still unclear. This study investigates the effect of motor learning guided (MLG) approach on individuals with AOS. Two individuals with AOS whose severity ranged from mild to moderate participated in this study. Two sets (each 20 utterance) of stimuli were created (based on high functionality) by the participants and their primary care-givers. Subjects were instructed to produce the target word three times with 4-second pause between each attempt. After 3 attempts, the experimenter provided knowledge of results (KR). Each target word was randomly selected from the written stimulus cards. The results showed that the mean scores of all the subjects increased during the sessions and this effect was transferred to the untrained target words.
Apraxias
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Knowledge of Results (Psychology)
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Learning
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Retention (Psychology)
2.Effect of surface anodization on stability of orthodontic microimplant.
Sanket KARMARKER ; Wonjae YU ; Hee Moon KYUNG
The Korean Journal of Orthodontics 2012;42(1):4-10
OBJECTIVE: To determine the effect of surface anodization on the interfacial strength between an orthodontic microimplant (MI) and the rabbit tibial bone, particularly in the initial phase after placement. METHODS: A total of 36 MIs were driven into the tibias of 3 mature rabbits by using the self-drilling method and then removed after 6 weeks. Half the MIs were as-machined (n = 18; machined group), while the remaining had anodized surfaces (n = 18; anodized group). The peak insertion torque (PIT) and the peak removal torque (PRT) values were measured for the 2 groups of MIs. These values were then used to calculate the interfacial shear strength between the MI and cortical bone. RESULTS: There were no statistical differences in terms of PIT between the 2 groups. However, mean PRT was significantly greater for the anodized implants (3.79 +/- 1.39 Ncm) than for the machined ones (2.05 +/- 1.07 Ncm) (p < 0.01). The interfacial strengths, converted from PRT, were calculated at 10.6 MPa and 5.74 MPa for the anodized and machined group implants, respectively. CONCLUSIONS: Anodization of orthodontic MIs may enhance their early-phase retention capability, thereby ensuring a more reliable source of absolute anchorage.
Rabbits
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Retention (Psychology)
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Shear Strength
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Tibia
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Torque
3.Magnet retained intraoral-extra oral combination prosthesis: a case report.
Saurav BANERJEE ; Surender KUMAR ; Amit BERA ; Tapas GUPTA ; Ardhendu BANERJEE
The Journal of Advanced Prosthodontics 2012;4(4):235-238
Facial prosthesis is generally considered over surgical reconstruction to restore function and appearance in patients with facial defects that resulted from cancer resection. Retention of the prosthesis is challenging due to its size and weight. Retention can be achieved by using medical grade adhesives, resilient attachments, clips and osseointegrated implants. It can also be connected to obturator by magnets. This clinical report highlights the rehabilitation of a lateral midfacial defect with a two piece prosthesis that included an extra oral facial prosthesis and an intraoral obturator with the use of magnets.
Adhesives
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Humans
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Magnets
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Prostheses and Implants
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Retention (Psychology)
4.Management of flabby ridges using liquid supported denture: a case report.
Nandita Nitin KENI ; Meena Ajay ARAS ; Vidya CHITRE
The Journal of Advanced Prosthodontics 2011;3(1):43-46
Flabby ridges commonly occur in edentulous patients. Inadequate retention and stability of a complete denture are the often encountered problems in these patients. A liquid supported denture due to its flexible tissue surface allows better distribution of stress and hence provides an alternate treatment modality in such cases. This case report presents the use of a liquid supported denture in a patient with completely edentulous maxillary arch with flabby tissue in anterior region opposing a partially edentulous mandibular arch.
Denture, Complete
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Dentures
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Humans
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Retention (Psychology)
5.Sinking and fit of abutment of locking taper implant system.
Seung Jin MOON ; Hee Jung KIM ; Mee Kyoung SON ; Chae Heon CHUNG
The Journal of Advanced Prosthodontics 2009;1(2):97-101
STATEMENT OF PROBLEM: Unlike screw-retention type, fixture-abutment retention in Locking taper connection depends on frictional force so it has possibility of abutment to sink. PURPOSE: In this study, Bicon(R) Implant System, one of the conical internal connection implant system, was used with applying loading force to the abutments connected to the fixture. Then the amount of sinking was measured. MATERIAL AND METHODS: 10 Bicon(R) implant fixtures were used. First, the abutment was connected to the fixture with finger force. Then it was tapped with a mallet for 3 times and loads of 20 kg corresponding to masticatory force using loading application instrument were applied successively. The abutment state, slightly connected to the fixture without pressure was considered as a reference length, and every new abutment length was measured after each load's step was added. The amount of abutment sinking (mm) was gained by subtracting the length of abutment-fixture under each loading condition from reference length. RESULTS: It was evident, that the amount of abutment sinking in Bicon(R) Implant System increased as loads were added. When loads of 20 kg were applied more than 5 - 7 times, sinking stopped at 0.45 +/- 0.09 mm. CONCLUSION: Even though locking taper connection type implant shows good adaption to occlusal force, it has potential for abutment sinking as loads are given. When locking taper connection type implant is used, satisfactory loads are recommended for precise abutment location.
Bite Force
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Fingers
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Friction
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Retention (Psychology)
6.Treatment of Vancouver B2 and B3 Periprosthetic Femoral Fractures.
Il Yong CHOI ; Soo Hyun CHO ; Young Ho KIM
Journal of the Korean Hip Society 2008;20(2):110-116
Purpose: To evaluate respectively the clinical results after femoral stem exchange or retention in the treatment of Vancouver B2, B3 periprosthetic femoral fractures. Materials and Methods: Nineteen cases of Vancouver B2 fractures and 8 cases of B3 fractures that were treated surgically between January 1992 to October 2004 were reviewed. There were 15 retained stems (group A) and 12 exchanged stems (group B). Firm fixation of a fracture and stem with a plate, screw and cable was performed in both groups. The HHS and criteria of Beals and Tower was used for the clinical and radiological evaluation. Results: The mean HHS was 84 in group A and 85 in group B. Unsatisfactory (<80 HHS) results were obtained in 2 cases from each group. The radiological results were excellent in both groups with the exception of one case of femoral stem loosening in group A and one case of non-union in group B. The complications encountered were 1 case of femoral stem loosening, 1 case of non-union, 1 case of a superficial infection, 1 case of dislocation, and 1 case of cup loosening. Conclusion: Stable fixation of the fracture and stem with a sufficient bone graft in the treatment of Vancouver B2, B3 periprosthetic femoral fractures can produce favorable clinical results regardless of the level of femoral exchange.
Dislocations
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Femoral Fractures
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Retention (Psychology)
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Transplants
7.Frenectomy for improvement of a problematic conventional maxillary complete denture in an elderly patient: a case report.
The Journal of Advanced Prosthodontics 2011;3(4):236-239
Maxillary labial and buccal frena are considered as normal anatomic structures in the oral cavity. However, they may exist intraorally as a thick broad fibrous attachment and/or become located near the crest of the residual ridge, thus interfering with proper denture border extension resulting in inferior denture stability, retention and overall patient satisfaction. This case report highlights the importance of clinical examination and treatment planning which may mandate preprosthetic surgery prior to fabrication of a new conventional complete denture. Adequate patient satisfaction with conventional complete dentures can be significantly increased after frenectomy.
Aged
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Denture Retention
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Denture, Complete
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Dentures
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Humans
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Mouth
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Patient Satisfaction
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Retention (Psychology)
8.A Case of Neurofibromatosis with Invasion of Bladder.
Mi Kyung KIM ; Cheol PARK ; Min Sang KIM ; Hyung Eun YIM ; Kee Hwan YOO ; Young Sook HONG ; Joo Won LEE
Journal of the Korean Society of Pediatric Nephrology 2012;16(1):68-71
Neurofibromatosis is a rare systemic disease, and genitourinary tract involvement is especially uncommon. Bladder is the most frequently involved organ in the genitourinary tract. Bladder neurofibromatosis may present as a diffuse infiltrative process or an isolated neurofibroma. The symptoms vary, ranging from urinary incontinence to retention. Treatment is usually conservative. The patient should be worked up to rule out other manifestation of tumor enlargement and followed to evaluate the development of new lesion. We report a case of the development of invasion of bladder in a patient with neurofibromatosis.
Humans
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Neurofibroma
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Neurofibromatoses
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Neurofibromatosis 1
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Retention (Psychology)
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Urinary Bladder
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Urinary Incontinence
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Urinary Retention
9.A Case of Imperforate Hymen with Acute Urinary Retention.
Lim CHOI ; Sea Eun CHO ; Hyung Eun YIM ; Kee Hwan YOO ; Young Sook HONG ; Joo Won LEE
Journal of the Korean Society of Pediatric Nephrology 2011;15(1):86-89
Imperforate hymen is, with an incidence of 0.1%, a rare female anomaly, which can appear with symptoms such as lower abdominal pain, primary amenorrhea, dysuria, anuria, caused by retention of menstrual blood after the onset of menstruation. Generally urinary retention is caused by psychological conditions, drug effect, infection or congenital anomaly causing acute urinary obstruction. We experienced a patient with symptoms of acute urinary retention, suggesting acute urinary obstruction. The cause for the retention turned out to be an imperforated hymen, which should therefore be mentioned in the literature as a possible cause in cases suspected of urinary retention.
Abdominal Pain
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Amenorrhea
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Anuria
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Dysuria
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Female
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Humans
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Hymen
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Incidence
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Menstruation
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Retention (Psychology)
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Urinary Retention
10.Performance of attachments used in implant-supported overdentures: review of trends in the literature.
Journal of Periodontal & Implant Science 2013;43(1):12-17
The purpose of this review is to examine the performance of attachments used in implant-supported overdenture (IOD) in both clinical and in vitro settings and report the compiled findings, comparisons, and trends in the research literature. Articles published in PubMed on IOD attachment systems and performance were reviewed. Non-original articles were excluded. For each article included, the type of study, number of implants, number of attachment systems, and study outcome were recorded. Of the 283 articles found, 158 met the inclusion criteria. Ninety-four articles were clinical studies and 64 articles were in vitro studies. Studies on retention were the most common for in vitro studies, and four or more attachment systems were compared in most articles with significant differences in outcome. A clinical outcome of one attachment system was most common for clinical studies, while most studies had neutral outcomes overall. Ball attachment was the most commonly tested IOD attachment system. The trend in the literature showed that there is a large discrepancy between the study designs and outcomes between the clinical and the in vitro studies for IOD. Further clinical studies that can validate in vitro research should be encouraged to address this discrepancy between the two areas.
Dental Implants
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Denture Precision Attachment
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Denture, Overlay
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Retention (Psychology)