Earticle

초록

영어

This study aims to evaluate color change and morphological changes through light activated bleaching by applying plasma arc to HP and CP. Forty-eight extracted bovine incisors were selected and embedded in the resin blocks. All the specimens were highly polished and discolored with commercial COCK®. High concentration HP and CP with and without plasma arc were used for bleaching. Specimens were bleached for 1 hour per week during 3 weeks. Color and morphological change were determined with colorimeter (TC-8600A), microhardness tester (MXT-a7) and scanning electron microscope (S-4200). All the collected data were analyzed by repeated measures ANOVA at 0.05 percent significant level. The degree of color changes (ΔE*) in all groups increased as bleaching frequency increased. Microhardness decreased in all groups after bleaching process. The SEM evaluation showed enamel surface change in all groups after tooth bleaching. Office Bleaching using plasma arc as a bleaching agent caused the degree of color change to increase. Office bleaching using the high concentration HP and CP with plasma arc also detract the outer surface of enamel.

목차

1. 서론
 2. 연구재료 및 방법
  2.1. 시편제작 및 전처리
  2.2. 미백방법
  2.3. 색조 변화 측정
  2.4. 비커스경도 측정(VHN)
  2.5. 주사전자현미경 관찰
  2.6. 통계 분석
 3. 연구결과
  3.1. 색조변화 분석
  3.2. 표면경도 분석(VHN)
  3.3. 주사전자현미경 관찰
 4. 고찰
 5. 결론
 참고문헌
 ABSTRACT

저자

• 구효진 [ Hyo-Jin Gu | 춘해보건대학 치위생과 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한치과위생학회지 [The Journal of The Korean Academy of Dental Hygiene]

• 간기

  반년간

• pISSN

  1229-733X

• 수록기간

  1999~2017

• 십진분류

  KDC 515 DDC 617