• 대한치과보철학회지
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• 제53권3호
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• pp.234-243
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• 2015

디지털 기술의 발달로 무치악 부위의 임플란트 수복 시 그 진단과 치료 과정 전반에 걸쳐 구강 내 3차원 정보를 데이터화하여 보철물을 제작하는 것이 가능해졌다. 전통적인 인상채득 방식을 이용하여 모델을 만들고 이것을 스캔하여 보철물을 제작하던 CAD/CAM 이용 방식에서 벗어나 디지털 인상 코핑(scanbody)을 사용함으로써 모델 없이 디지털 인상을 채득하고 임플란트 임시 보철물 및 해부학적 지대주를 제작하는 술식으로 변화하고 있다. 그러나 아직 이러한 술식은 활발히 이루어지고 있지 않으며 특히 심미성이 요구되어 연조직 외형의 인기가 중요한 상악 전치부 임플란트 즉시 부하에서의 사용은 그 사례가 많지 않다. 이에 따라 본 증례 보고에서는 3명의 상악 전치부 단일 임플란트 수복 환자에서 디지털 인상 코핑(scanbody)을 체결한 후 구강 내 스캐너인 CEREC Omnicam (Sirona, Bensheim, Germany) 또는 Trios (3shape, Copenhagen, Denmark)로 디지털 인상채득을 통해 임플란트 지대주 및 임시 보철물을 제작하였다. 그 결과 디지털 인상채득을 통한 편리성, 정확성 그리고 최종 보철물의 양호한 심미성을 얻어 보고하고자 한다.

• 대한치과보철학회지
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• 제45권3호
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• pp.389-400
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• 2007

Statement of problem. Use of the conventional dental impression procedure is problematic in patients who have difficulty opening their mouth, difficulty breathing through their nose or tendency to gag. Purpose. It is necessary to make individual trays more comfortable for patients during impression taking procedure. It was reported at the KAP Annual Meeting 2001 Seoul that an improved impression technique was suitable for this purpose. In this study, the accuracy of the improved dental impression method for implant was compared with the conventional dental impression method. Material and methods. An oral simulator was made from clear acrylic resin block which had similar form of edentulous ridge. For setting up the standard, five fixtures were installed on it. Study casts were made using two kinds of impression techniques. One was the conventional method that was taken using silicone impression material and an individual resin tray under connection of inter-fixture relation. The other was the improved method in which was the connection of the impression coping and the thermoformed polymethyl methacrylate tray. In addition, two different study casts were made from the improved impression body. The coordinates of the fixture on the study model were measured by three-dimensional coordinate measuring equipment. Then the distances between each fixture were calculated and compared with that of oral simulator. Accuracy of the each impression method was also assessed. Results. The differences of inter-fixture dimension between study casts and simulator in the improved impression technique showed $0.014{\pm}0.016mm$ and $0.017{\pm}0.022mm$, respectively and that of the conventional method was $0.017{\pm}0.014mm$. There was no significant difference between the improved impression technique and conventional method. Conclusion. The improved impression technique is useful for multiple support implants.

• 대한치과보철학회지
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• 제41권6호
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• pp.714-719
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• 2003

Conical crown-retained denture (CCRD) has been used as a very effective treatment method in cases with few remaining teeth with heterogeneous prognosis. However, in spite of many advantages of CCRD, high technical failure rate was a problem to be considered. Incorrect path of insertion and excessive retention were thought to be the main cause of technical failure and to result from laboratory procedure with a coping misfit and/or a coping transfer error. In order to prevent this error, secure anchoring of inner coping and re-examination and milling of convergence angle were recommended on the master model from pick-up impression.

• 대한치과보철학회지
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• 제59권1호
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• pp.134-145
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• 2021

과도하게 마모된 치열의 경우 보철물이 들어갈 공간이 부족한 경우가 많으며, 생리적으로 허용되는 경우에는 교합을 거상해서 보철물을 제작할 수 있다. 결정된 교합고경이 생리적 문제를 일으키지 않는지 확인하는 가역적인 방법으로 가철성 장치를 이용할 수 있다. 여러 인접한 치아의 인상채득을 하는 경우에 한번에 정확한 인상채득을 만들어내기 어려운 경우가 많다. 이러한 경우에 개개 치아의 정확한 인상채득을 나눠서 시행한 후 하나의 작업모형을 만들기 위해 트랜스퍼 코핑을 제작하고 구강내에서 픽업인상을 채득하는 방법을 이용할 수 있다. 본 증례는 과도하게 마모된 치열을 지녀 보철수복 공간이 부족하고 출혈경향이 심한 환자에서, 개별치아의 인상채득 후 트랜스퍼 코핑 픽업인상법을 이용하여 작업모형을 만든 후, 교합고경을 거상시켜 고정성 보철물을 제작하여 전악수복한 환자를 7년의 추적 관찰 결과 심미적 및 기능적으로 만족스러운 결과를 얻었기에 보고하고자 한다.

• 성인간호학회지
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• 제14권2호
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• pp.276-286
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• 2002

Purpose: The concept of embarrassment as an unpleasant emotion is important in caring for those who are in the continuum of illness and health requiring body care and facing sexual problems. In spite of its nursing implication, embarrassment has not been focused in nursing research. Therefore, the purpose of this paper is to develope a conceptual analysis of embarrassment. This analysis would help to understand comprehensively an embarrassing situation in which an intimate relationship between nurse and patient regarding body care of the patient could develope. Futhermore, it would be a basis for developing strategies for prevention of embarrassment which could lead for both patient and nurse to emotionally vulnerable situation because of their failure of self-presentation (impression management). Method: The concept analysis model suggested by Walker and Avant (1988) is used to clarify what is meant by the term 'embarrassment'. Result: This analysis defines the attributes of embarrassment such as follows. First, embarrassment is often attributed to situational factors interrupting a smooth interaction such as intimacy, confusion, vulnerability, exposure of interaction and characteristics of audience. Second, embarrassment is closely related with cognitive factor such as fear of losing face resulted from a behaviour being out of line. Third, embarrassment is closely associated with dispositional factor such as embarrassability. Fourth, embarrassment is an unpleasant and unwanted emotion arising reactively after an interaction had occurred. Fifth, embarrassment encloses physical, physiological and behavioral aspects such as a variety of unique and easily noticeable reactions and a pattern of verbal and non-verbal behaviour for coping in an embarrassing situation. The antecedents were normally socialized adolescents with normal cognitive ability, concern of losing face, embarrassability, embarrassing events related with situational intimacy, confusion, vulnerability, exposure of interaction and characteristics of audience, physical, behavioral blunders resulting in a failure of impression management. The consequences were an emotional coping behaviour, audience's embarrassment responses, and verbal and non-verbal coping strategies of interactional participants. Conclusion: It is hoped that this analysis will stimulate further exploration of this concept and study for developing systematic assessment and nursing practice that diminishes embarrassment of interactional participants.

• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.151-157
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• 2016

구강인기방법과 지르코니아 블록 종류에 따른 지르코니아 코핑의 변연적합도 변화를 관찰하기 위해 2종의 고무인상재와 1종의 구강스캐너를 사용한 구강인기방법과 3종의 지르코니아 블록을 사용하여 지르코니아 코핑을 10개씩 제작하여 표면 거칠기와 변연적합도를 측정하였다. 표면 거칠기는 LUXEN Smile($2.3{\pm}0.9{\mu}m$) 블록이 가장 우수하였다. 그리고 협측 변연간격은 HL시편($26.5{\pm}2.1{\mu}m$), 설측 변연간격은 HL시편($27.2{\pm}2.1{\mu}m$), 근심 변연간격은 HJ시편($29.6{\pm}4.0{\mu}m$), 원심 변연간격은 HJ시편($29.0{\pm}3.0{\mu}m$)이 가장 낮게 나타났으며, 통계학적으로 유의차가 있었다(p<0.05). 이 결과, 구강인기방법과 지르코니아 블록 종류가 변연적합도에 영향을 준 것으로 나타났으며, 변연간격은 모든 군에서 임상적 허용 범위 내에 속했다.

• The Journal of Advanced Prosthodontics
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• 제9권5호
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• pp.341-349
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• 2017

PURPOSE. This study evaluated the accuracies of different bite registration techniques for implant-fixed prostheses using three dimensional file analysis. MATERIALS AND METHODS. Implant fixtures were placed on the mandibular right second premolar, and the first and second molar in a polyurethane model. Aluwax (A), Pattern Resin (P), and Blu-Mousse (B) were used as the bite registration materials on the healing abutments (H) or temporary abutments (T). The groups were classified into HA, HP, HB, TA, TP, and TB according to each combination. The group using the bite impression coping was the BC group; impression taking and bite registration were performed simultaneously. After impression and bite taking, the scan bodies were connected to the lab analogs of the casts. These casts were scanned using a model scanner. The distances between two reference points in three-dimensional files were measured in each group. One-way ANOVA and Duncan's test were used at the 5% significance level. RESULTS. The smallest distance discrepancy was observed in the TB group using the temporary abutments. The Blu-Mousse and HP groups showed the largest distance discrepancy. The TB and BC groups showed a lower distance discrepancy than the HP group (P=.001), and there was no significant difference between the groups using the temporary abutments and healing abutments (P>.05). CONCLUSION. Although this study has limitations as an in-vitro investigation, the groups using the temporary abutments to hold the Blu-Mousse record and bite impression coping showed greater accuracy than the group using the healing abutments to hold the pattern resin record.

• Journal of Yeungnam Medical Science
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• 제39권4호
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• pp.341-343
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• 2022

To determine the vertical dimension and centric relation during the construction of implant overdentures, the record base and wax rim may need to be adjusted. The conventional method has several drawbacks, as it requires repeated tightening and loosening of the impression coping. Here, we report a useful and novel method for interocclusal records using the healing abutments in implant overdentures. Our case demonstrates that this method is easier and simpler and prevents gingival collapse.

• 대한치과기공학회지
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• 제38권4호
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• pp.255-262
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• 2016

Purpose: This study examined the effect of wettability of gypsum materials and rubber impression material on the marginal fitness of zirconia copings. Methods: Three commercially available gypsum materials(Fugirock EP, Snow Rock, Tuff Rock) and three zirconia blocks(iJAM Emerald, LUXEN Smile block, ICE Zirkon transluzent) were studied. The zirconia copings were fabricated by using dental CAD/CAM system. Contact angles on the impression materials were measured with contact angle measuring device. Silicone replica method was used to measure the marginal fitness and cutting was performed on the bucco-lingual and mesio-distal sides. It were observed with a stereomicroscope at °ø40 magnification. The data were statistically analyzed with One-way ANOVA. Results: Mean values of contact angles were $58.3{\pm}0.7^{\circ}$ for Tuff Rock, $77.5{\pm}0.5^{\circ}$ for Fugirock EP and $87.8{\pm}0.5^{\circ}$ for Snow Rock and the difference between them was statistically significant(p<0.05). The smallest values of marginal fitness for the JF groups were $30.7{\pm}3.0{\mu}m$ for bucco-lingual direction, $29.3{\pm}3.0{\mu}m$ for mesio-distal direction. One-way ANOVA showed statistically significant difference between groups for marginal fitness(p<0.05). Conclusion: Tuff rock gypsum material had superior wettability to others. The mean marginal fitness of the Tuff rock gypsum material group were significantly better than other groups. Thus they can be also expected to show clinically satisfactory marginal fitness.

• 대한심미치과학회지
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• 제24권1호
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• pp.13-24
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• 2015

임플란트와 주변 연조직에 대한 술식들이 발전함에 따라 임플란트를 통해 저작 기능 뿐 아니라 심미성의 회복도 가능하게 되었다. 최근에는 심미적인 면이 가장 중요한 상악 전치부에도 임플란트를 이용한 수복이 많이 이용되고 있다. 하지만 상악 전치부를 주변 조직과 조화되게끔 임플란트로 재건하는 것은 치과의사에게 여전히 어려운 일이다. 이를 위해서는 경조직의 재건, 연조직의 재건, 그리고 주변 조직과 어울리는 보철물의 제작이 이루어져야 한다. 본 증례에서는 이전의 여러 차례 수술로 인하여 상악 전치부 상실부위의 연조직, 경조직 손실이 심한 상태로 내원한 환자에서 연조직 증강술과 골이식을 시행하고 임시수복물을 통해 심미성을 개선시킨 임플란트 증례가 있어 보고하고자 한다.