지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제11권 제3호
- 발행연도
- 2019.1
- 수록면
- 187 - 192 (6page)
이용수
초록· 키워드
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PURPOSE. The purpose of this in vitro study was to investigate the fracture loads and modes of failure for the full range of natural teeth under simulated occlusal loading. MATERIALS AND METHODS. One hundred and forty natural teeth were taken from mandibles and maxillas of patients. There were 14 groups of teeth with 10 teeth in each group (5 males and 5 females). Each specimen was embedded in resin and mounted on a positioning jig, with the long axis of the tooth at an inclined angle of 30 degrees. A universal testing machine was used to measure the compression load at which fracture of the tooth specimen occurred; loads were applied on the incisal edge and/or functional cusp. RESULTS. The mean fracture load for the mandibular first premolar was the highest (2002 N) of all the types of teeth, while the mean fracture load for the maxillary first premolar was the lowest (525 N). Mean fracture loads for the mandibular and maxillary incisors, and the first and second maxillary premolars, had significantly lower values compared to the other types of teeth. The mean fracture load for the teeth from males was significantly greater than that for the teeth from females. There was an inverse relationship between age and mean fracture load, in which older teeth had lower fracture loads compared to younger teeth. CONCLUSION. The mean fracture loads for natural teeth were significantly different, with dependence on tooth position and the sex and age of the individual.
목차
등록된 정보가 없습니다.
참고문헌 (21)
참고문헌 신청
Jordan RE / 1992 / Dental anatomy and occlusion / Mosby-Year Book :43~66
Habelitz S / 2001 / Mechanical properties of human dental enamel on the nanometre scale / Arch Oral Biol 46:173~183
Pegoretti A / 2002 / Finite element analysis of a glass fibre reinforced composite endodontic post / Biomaterials 23:2667~2682
Strub JR / 1998 / Fracture strength of 5 different allceramic crown systems / Int J Prosthodont 11:602~609
Potiket N / 2004 / In vitro fracture strength of teeth restored with different all-ceramic crown systems / J Prosthet Dent 92:491~495
Habelitz S / 2001 / Mechanical properties of human dental enamel on the nanometre scale / Arch Oral Biol 46:173~183
Pegoretti A / 2002 / Finite element analysis of a glass fibre reinforced composite endodontic post / Biomaterials 23:2667~2682
Strub JR / 1998 / Fracture strength of 5 different allceramic crown systems / Int J Prosthodont 11:602~609
Potiket N / 2004 / In vitro fracture strength of teeth restored with different all-ceramic crown systems / J Prosthet Dent 92:491~495
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