The Journal of the Korea Contents Association (한국콘텐츠학회논문지)

The Korea Contents Association (한국콘텐츠학회)
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Comparison of Marginal Fitness of Zirconia Copings According to Impression Techniques and Zirconia Blocks

구강인기방법과 블록 종류에 따른 지르코니아 코핑의 변연적합도 비교

  • 정인성 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 전병욱 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 김원영 (부산가톨릭대학교 보건과학대학 치기공학과)
  • Received : 2015.07.06
  • Accepted : 2015.07.30
  • Published : 2016.01.28
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Abstract

The purpose of this study was to compare of marginal fitness of zirconia copings according to impression techniques and zirconia blocks. For the conventional impression, two types of rubber impression materials were used and digital impression was made by using an intraoral scanner. Zirconia copings were manufactured from three types of blocks. With each of ten zirconia copings was determined by surface roughness and marginal fitness. For surface roughness, LUXEN Smile($2.3{\pm}0.9{\mu}m$) block was superior. And the lowest mean values and standard deviations of marginal gap for the HL specimens were $26.5{\pm}2.1{\mu}m$ for buccal, $27.2{\pm}2.1{\mu}m$ for lingual, and that of the HJ specimens $29.6{\pm}4.0{\mu}m$ for mesial, $29.0{\pm}3.0{\mu}m$ for distal. One-way ANOVA showed statistically significant difference between groups for marginal fitness(p<0.05). From the above results, the impression techniques and zirconia blocks had influence on marginal fit of the zirconia copings. Also the marginal fitness of all groups showed clinically acceptable range.

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.

Keywords

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