원추형 연결 임플란트에서 지대주 종류에 따른 나사풀림과 침하현상에 관한 연구
Effect of various abutment systems on the removal torque and the abutment settling in the conical connection implant systems
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연구 목적: 본 연구 목적은 서로 다른 재료로 제작된 지대주를 이용하여 동적하중을 가했을 때 풀림토크와 침하량에 대한 임플란트-지대주 연결부의 안정성에 대하여 알아보는 것이다. 연구 재료 및 방법: 원추형 내부연결 구조를 갖는 임플란트에 이용되는 세 가지 지대주, 티타늄 합금 지대주(Cement abutment, Osstem Co., Seoul, Korea), 귀금속 UCLA 지대주(UCLA Goldcast abutment, Osstem Co., Seoul, Korea), 비귀금속 UCLA 지대주(CCM Metalcast abutment, 3M ESPE, Seefeld, Germany)를 사용하였다. 귀금속 UCLA 지대주와 비귀금 속 UCLA 지대주를 티타늄 지대주와 유사한 형태로 납형을 형성 한 후 각각 제 3형 금합금(E-3, Heesung catalyst Co., Seoul, Korea)와 니켈-크롬 합금인(Rexillium III(R), Pentron(R), San Diego, USA)를 사용하여 주조 하였다. 임플란트와 지대주를 디지털 토크 컨트롤러를 이용하여 30 Ncm로 체결하였고 전하중 상실을 보상하기 위하여 10분 후 다시 같은 힘으로 체결 하였다. 디지털 토크 게이지를 사용하여 풀림토크를 측정하였고 디지털 마이크로미터를 이용하여 임플란트/지대주 길이를 측정하였다. 그 후 동적 하중 피로 시험기에 지대주를 장착한 후 최대 250 N, 최소 25 N, 주기 14 HZ의 sine형의 하중을 장축과 평행하게 가하였다. 하중 후 임플란트/지대주의 길이를 재측정 하고, 전후 길이 변화량을 이용하여 침하량을 계산하였으며 풀림토크를 측정하였다. 결과: 하중 전후의 길이를 비교하였을 때 세 군 모두에서 유의한 차이를 보였다(P<.05). 군 간의 침하량을 비교하였을 때 통계적으로 유의한 차이를 보이지는 않았다. 하중 전후의 풀림토크를 비교하였을 때 역시 세 군 모두에서 유의한 차이를 보이며 감소하였다 (P<.05). 하중 전 풀림토크와 하중 후 풀림토크를 군간 비교하였을 경우에는 통계적으로 유의한 차이를 보이지는 않았다. 결론: 원추형 내부 연결구조를 갖는 임플란트에서 동적하중은 임플란트의 침하량과 풀림토크에 영향을 미치는 것으로 보이나 지대주간 차이는 나타나지 않았다. 비귀금속 UCLA 지대주이 사용은 귀금속 UCLA 지대주와 마찬가지로 기능적 하중에서 안정적일 것으로 사료된다.
Abstract
Purpose: The aim of this study was to evaluate the effects of different abutment materials on abutment screw loosening and settling-down effect in conical connection type implant system. Materials and methods: Three types of abutment, cementation, gold UCLA, and metal UCLA abutment were used. Two UCLA groups were fabricated in a similar pattern to cementation abutment. Type III gold alloy and Nickel-Chromium alloy was used for casting gold UCLA abutment and metal UCLA abutment, respectively. Fixture and abutment were tightened to 30 Ncm by using digital torque controller and re-tightening was conducted with same force after 10 minutes. Digital torque gauge was used to measure loosening torque and fixture/abutment length was measured by digital micrometer. Dynamic loads between 25 N and 250 N were applied with 0 degree angle to the abutment axis. After loading, fixture/abutment length was re-measured and amount of settlement was calculated. Loosening torque value was also measured for comparison. Results: All three groups showed significant differences of length when comparing before and after loading, but there was no significant difference of settling amount in all groups. Loosening torque values were significantly decreased when comparing before and after loading in all groups(P<.05). However, there was no significant difference in loss of loosening torque values when compared to groups. Conclusion: In internal conical connection type implants, dynamic load affected on settlement and loosening torque of implant, but there was no differences between abutments materials. Likewise gold UCLA abutment, metal UCLA abutment might be able to withstand functional load.
참고문헌 (36)
- Adell R, "A 15-year study of osseointegrated implants in the treatment of the edentulous jaw", Int J Oral Surg, 10, pp.387~416 (1981)
- Goodacre CJ, "Clinical complications with implants and implant prostheses", J Prosthet Dent, 90, pp.121~132 (2003)
- Becker W, "Replacement of maxillary and mandibular molars with single endosseous implant restorations: a retrospective study", J Prosthet Dent, 74, pp.51~55 (1995)
- Jemt T, "Failures and complications in 127 consecutively placed fixed partial prostheses supported by Branemark implants: from prosthetic treatment to first annual checkup", Int J Oral Maxillofac Implants, 7, pp.40~44 (1992)
- Quek HC, "Load fatigue performance of four implant-abutment interface designs: effect of torque level and implant system", Int J Oral Maxillofac Implants, 23, pp.253~262 (2008)
- Simon RL, "Single implant-supported molar and premolar crowns: a ten-year retrospective clinical report", J Prosthet Dent, 90, pp.517~521 (2003)
- Jemt T, "Osseointegrated implants for single tooth replacement: a 1-year report from a multicenter prospective study", Int J Oral Maxillofac Implants, 6, pp.29~36 (1991)
- Jorne′us L, "Loads and designs of screw joints for single crowns supported by osseointegrated implants", Int J Oral Maxillofac Implants, 7, pp.353~359 (1992)
- Shigley JE, "Standard Handbook of Machine Designs", pp.16~23 (1986), McGraw-Hill
- Kim KS, "Variation in the total lengths of abutment", implant assemblies generated with a function of applied tightening torque in external and internal implant-abutment connection, 2011, pp.22, 834~839
- Siamos G, "Relationship between implant preload and screw loosening on implant-supported prostheses", J Oral Implantol, 28, pp.67~73 (2002)
- Ricciardi Coppede A, "Effect of repeated torque", mechanical loading cycles on two different abutment types in implants with internal tapered connections: an in vitro study, 2009, pp.20, 624~632
- Weiss EI, "Effect of repeated closures on opening torque values in seven abutment-implant systems", J Prosthet Dent, 84, pp.194~199 (2000)
- Lewis S, "The restoration of improperly inclined osseointegrated implants", Int J Oral Maxillofac Implants, 4, pp.147~152 (1989)
- Lewis SG, "The UCLA abutment: a four-year review", J Prosthet Dent, 68, pp.509~515 (1992)
- Carotenuto G, "Characterization of the interface between prefabricated gold copings and cast dental alloy in implant restorations", Clin Oral Implants Res, 10, pp.131~138 (1999)
- O’Brien WJ, "Base metal casting alloys, In Dental material and their selection", pp.259~268 (1997), Quintessence
- Kano SC, "Use of base metal casting alloys for implant framework: marginal accuracy analysis", J Appl Oral Sci, 12, pp.337~343 (2004)
- Lim JH, "A study on the photoelastic analysis of stresses induced by the connection modalities between natural tooth abutment and dental implant", J Dankook Dent Res Inst, 4, pp.141~151 (1992)
- Artzi Z, "A screw lock for single-tooth implant superstructures", J Am Dent Assoc, 130, pp.677~682 (1999)
- Schwarz MS, "Mechanical complications of dental implants", Clin Oral Implants Res, 11, pp.156~158 (2000)
- Cavazos E, "Preventing loosening of implant abutment screws", J Prosthet Dent, 75, pp.566~569 (1996)
- Kang YM, "A study on the abutment screw loosening of dental implants", J Korean Acad Prosthodont, 34, pp.1~14 (1996)
- Im SM, "Biomechanical considerations for the screw of implant prosthesis: A literature review", J Korean Acad Prosthodont, 48(01), pp.61~68 (2010), 대한치과보철학회
- Dailey B, "Axial displacement of abutments into implants and implant replicas, with the tapered cone-screw internal connection, as a function of tightening torque", Int J Oral Maxillofac Implants, 24, pp.251~256 (2009)
- Sutter F, "The new restorative concept of the ITI dental implant system: design and engineering", Int J Periodont Rest Dent, 13, pp.409~431 (1993)
- 최진욱, "임플랜트 지대주 나사의 텅스텐 카바이드", 탄소 코팅이 전하중에 미치는 영향에 관한 연구, 2006, pp.44(2), 229~242[DOI]
- Norton MR, "An in vitro evaluation of the strength of a 1-piece and 2-piece conical abutment joint in implant design", Clin Oral Implants Res, 11, pp.458~464 (2000)
- Mericske-Stern R, "In vivo measurements of some functional aspects with mandibular fixed prostheses supported by implants", Clin Oral Implants Res, 7, pp.153~161 (1996)
- Richter EJ, "In vivo vertical forces on implants", Int J Oral Maxillofac Implants, 10, pp.99~108 (1995)
- Wataha JC, "Biocompatibility of dental casting alloys: a review", J Prosthet Dent, 83, pp.223~234 (2000)
- White GE, "Osseointegrated dental technology", pp.70~83 (1993), Quintessence
- Hulterstrom M, "Cobalt-chromium as a framework material in implant-supported fixed prostheses: a preliminary report", Int J Oral Maxillofac Implants, 6, pp.475~480 (1991)
- Geis-Gerstorfer J, "In vitro substance loss due to galvanic corrosion in Ti implant", Ni-Cr supraconstruction systems, 1989, pp.4, 119~123
- Lee JJ, "Surface roughness changes caused by the galvanic corrosion between a titanium abutment and base metal alloy", J Korean Acad Prosthodont, 49(01), pp.65~72 (2011), 대한치과보철학회
- 김경남, "Electrochemical properties of suprastructures galvanically coupled to a titanium implant", JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, 70B, pp.318~331