상하악 대구치 부위에서 넓은 직경 임플란트의 생존율에 대한 후향적 연구
Retrospective Study of Wide-Diameter Implants in Maxillary & Mandibular Molar regions
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초록
Endosseous implants are used in the treatment of various types of tooth loss, and numerous long-term studies have demonstrated the excellent reliability of this method of treatment. However, the increase of implant failure are associated with inadequate quality and/or height of bone. At the end of the 1980s, Wide(>3.75mm) implants were initially used for managing these difficult bone situations. The recommended indications for its use included poor bone quality, inadequate bone height, immediate placement in fresh extraction sockets, and immediate replacement of failed implants. At the 2000s, wider implants(6.0mm and 6.5mm) were used in a few studies. Although good clinical outcomes have been reported in recent years, there is still a controversy on this topic. Therefore, the purpose of this study was to estimate the survival rate of wide implants(6.0~8.0mm) in molar regions, evaluating the clinical outcome. In this study, 1135 RBM surfaced wide implants(RescueTM, MEGAZEN Co., Korea/ 595 maxillary, 540 mandibular) were placed in 650 patients(403 male, 247 female/age mean: 51.2±11.1 years, range 20 to 83 years). Of the total, 68.3% were used to treat fully or partially edentulous situations, including single-tooth losses and 31.7% were placed immediately after teeth extraction or removal of failed implants, of which all were in the molar regions. Implant diameter and length ranged from 6.0 to 8.0mm and from 5.0 to 10.0mm, respectively. The implants were followed for up to 42 months (mean: 14.6±9.5 months). Of 1135 placed implants, 58 implants were lost. Among them, 53 implants were lost within 12 months after implant placement. The survival rate was 93.6% in the maxilla and 96.3% in the mandible, yielding an overall survival rate of 94.9%, for up to 42 months. As the result of Cox regression model, prosthetic type, sinus graft, and patient gender have an statistical significance on the implant survival rate in this study. This study suggests that the use of wide implants(6.0~8.0mm) would provide a predictable treatment alternative in posterior areas.
Abstract
Endosseous implants are used in the treatment of various types of tooth loss, and numerous long-term studies have demonstrated the excellent reliability of this method of treatment. However, the increase of implant failure are associated with inadequate quality and/or height of bone. At the end of the 1980s, Wide(>3.75mm) implants were initially used for managing these difficult bone situations. The recommended indications for its use included poor bone quality, inadequate bone height, immediate placement in fresh extraction sockets, and immediate replacement of failed implants. At the 2000s, wider implants(6.0mm and 6.5mm) were used in a few studies. Although good clinical outcomes have been reported in recent years, there is still a controversy on this topic. Therefore, the purpose of this study was to estimate the survival rate of wide implants(6.0~8.0mm) in molar regions, evaluating the clinical outcome. In this study, 1135 RBM surfaced wide implants(RescueTM, MEGAZEN Co., Korea/ 595 maxillary, 540 mandibular) were placed in 650 patients(403 male, 247 female/age mean: 51.2±11.1 years, range 20 to 83 years). Of the total, 68.3% were used to treat fully or partially edentulous situations, including single-tooth losses and 31.7% were placed immediately after teeth extraction or removal of failed implants, of which all were in the molar regions. Implant diameter and length ranged from 6.0 to 8.0mm and from 5.0 to 10.0mm, respectively. The implants were followed for up to 42 months (mean: 14.6±9.5 months). Of 1135 placed implants, 58 implants were lost. Among them, 53 implants were lost within 12 months after implant placement. The survival rate was 93.6% in the maxilla and 96.3% in the mandible, yielding an overall survival rate of 94.9%, for up to 42 months. As the result of Cox regression model, prosthetic type, sinus graft, and patient gender have an statistical significance on the implant survival rate in this study. This study suggests that the use of wide implants(6.0~8.0mm) would provide a predictable treatment alternative in posterior areas.
참고문헌 (29)
- "A long-term follow-up study of osseointegraed implants in the treatment of the totally edentulous jaw", 5, pp.347~349 (1990)
- "The excessive loss of Brnemark fixtures in type IV bone", 62, pp.2~4 (1991)
- "Short implants-An Analysis of Longitudinal Studies", 21, pp.86~93 (2006)
- "Wide-Diameter Implants: New-concepts", 21, pp.149~159 (2001)
- "A Solution for Special Bone Situations and a Rescue for the Compromised Implant", pp.400~408
- "Four-year Follow-up of Larger-Diameter Implants Placed in Fresh Extraction Sockets Using a Resorbable Membrane or a Resorbable Alloplastic Material", 18, pp.856~864 (2003)
- "Clinical Analysis of Wide-Diameter Frialit-2 Implants", 19, pp.710~715 (2004)
- "The effectiveness of 6mm Diameter Implants", 76, pp.1013~1015 (2005)
- "Wide-Diameter Implants: Analysis of Clinical Outcome of 304 Fixtures", 78, pp.52~58 (2007)
- "Use of 5-mm diameter implants: periotest values related to a clinical and radiographic evaluation", 9, pp.398~406 (1998)
- "Early experience with wide-platform MK II implants. Part I: implant survival. Part II: evaluation of risk factors involving implant survival", 16, pp.208~216 (2001)
- "A retrospective study on the treatment outcome of wide-bodied implants", 17, pp.52~58 (2004)
- "Five- mm-diameter implants without a smooth surface collar: report on 98 consecutive placements", 14, pp.101~107 (1999)
- "Impact of implant length and diameter on survival rates", 17, pp.35~51 (2006)
- "Wide diameter implants:Indications,considertions and preliminary results over two-year period", 8, pp.31~37 (1994)
- "Implant large; Indications, advantages et reflextions", 4, pp.275~277 (1998)
- "A two-year retrospective study on the clinical success of the korean implnt system", 33, pp.37~47 (2003)
- "A retrospective clinical study of survivl rate of the ITI TE?? implant", 36, pp.673~682 (2006)
- "Survival analysis of dental implants in maxillary and mandibular molar regions; A 4~5 year report", 37, pp.165~180 (2007)
- "Survival and success rates with oral endosseous implants. In Proceedings of the 3rd European Workshop on Periodontology", pp.242~254 (1999), Berlin. Quintessence Publishing Co.
- "Contemporary Implant Dentistry", pp.91~123 (1998), Mosby
- "Criteria for implant selection", pp.55~62
- "Influence of variations in implant diameters: A 3-to 5-year retrospective clinical report", 14, pp.173~180 (1999)
- "Les implants de large diamtre", 1, pp.289~299 (1995)
- "Implant survival rates in partially edentulous patients: A 3-year prospective study", 53, pp.264~268 (1995)
- "Reconstruction of the severely resorbed maxilla with dental implants in the augmented maxillary sinus: a 5-year clinical investigation", 11, pp.466~475 (1996)
- "Use of short endosseous implants and an overdenture in the extremely resorbed mandible: A five-year retrospective study", 58, pp.382~387 (2000)
- "Survival Estimates and Risk Factors for Failures with 6x5.7-mm Implants", 20, pp.930~937 (2005)
- "Force transfer in implant dentistry: Basic concepts and principles", 18, pp.264~274 (1992)