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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한치과보철학회 The Journal of Advanced of Prosthodontics The Journal of Advanced of Prosthodontics 제7권 제2호
- 발행연도
- 2015.1
- 수록면
- 160 - 165 (6page)
이용수
초록· 키워드
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PURPOSE. In this study, a temporal abutment fixation screw, designed to fracture in a controlled way upon application of an occlusal force sufficient to produce critical micromotion was developed. The purpose of the screw was to protect the osseointegration of immediate loaded single implants. MATERIALS AND METHODS. Seven different screw prototypes were examined by fixing titanium abutments to 112 Mozo-Grau external hexagon implants (MG Osseous®; Mozo-Grau, S.A., Valladolid, Spain). Fracture strength was tested at 30º in two subgroups per screw: one under dynamic loading and the other without prior dynamic loading. Dynamic loading was performed in a single-axis chewing simulator using 150,000 load cycles at 50 N. After normal distribution of obtained data was verified by Kolmogorov–Smirnov test, fracture resistance between samples submitted and not submitted to dynamic loading was compared by the use of Student›s t-test. Comparison of fracture resistance among different screw designs was performed by the use of one-way analysis of variance. Confidence interval was set at 95%. RESULTS. Fractures occurred in all screws, allowing easy retrieval. Screw Prototypes 2, 5 and 6 failed during dynamic loading and exhibited statistically significant differences from the other prototypes. CONCLUSION. Prototypes 2, 5 and 6 may offer a useful protective mechanism during occlusal overload in immediate loaded implants.
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참고문헌 (17)
참고문헌 신청
Brunski JB / 1993 / Avoid pitfalls of overloading and micromotion of intraosseous implants / Dent Implantol Update 4 : 77 ~ 81
Chang PK / 2012 / Distribution of micromotion in implants and alveolar bone with different thread profiles in immediate loading: a finite element study / Int J Oral Maxillofa
Engelke W / 2004 / In vitro evaluation of horizontal implant micromovement in bone specimen with contact endoscopy / Implant Dent 13 : 88 ~ 94
Esposito M / 2013 / Interventions for replacing missing teeth: different times for loading dental implants / Cochrane Database Syst Rev 3 : CD003878 ~
Fazel A / 2009 / Effect of macro-design of immediately loaded implants on micromotion and stress distribution in surrounding bone using finite element analysis / Implant Den
Chang PK / 2012 / Distribution of micromotion in implants and alveolar bone with different thread profiles in immediate loading: a finite element study / Int J Oral Maxillofa
Engelke W / 2004 / In vitro evaluation of horizontal implant micromovement in bone specimen with contact endoscopy / Implant Dent 13 : 88 ~ 94
Esposito M / 2013 / Interventions for replacing missing teeth: different times for loading dental implants / Cochrane Database Syst Rev 3 : CD003878 ~
Fazel A / 2009 / Effect of macro-design of immediately loaded implants on micromotion and stress distribution in surrounding bone using finite element analysis / Implant Den
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