Crestal Approach for Maxillary Sinus Augmentation in Patients with ≤4 mm of Residual Alveolar Bone

Clinical Implant Dentistry and Related Research - Tập 16 Số 6 - Trang 827-835 - 2014
Stephanie González1, Mao‐Chi Tuan2, Kang‐Min Ahn3, Hessam Nowzari4
1Herman Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
2Taipei Academy of Reconstructive Dentistry, Research Department Taipei Taiwan
3Department of Oral and Maxillofacial Surgery College of Medicine University of Ulsan Seoul Korea
4Beverly Hills, CA, USA

Tóm tắt

AbstractPurposeLess morbidity is the major advantage to a one‐stage crestal approach to maxillary sinus elevation. However, the ability to ensure high primary implant stability in a severely atrophied ridge is of chief concern. The purpose of this study is to measure and compare the success rate of implants placed at the time of crestal approach sinus lift in patients with ≤4 mm of residual alveolar bone (RAB) and >4 mm of RAB.Materials and MethodsIn this three‐site multicenter study, one hundred two patients, 53 males and 49 females, (23–89 years old; mean = 56.2) were evaluated. Three experienced surgeons (>15 years) performed the crestal approach sinus lift microsurgeries with simultaneous implant placement. At baseline and at the follow‐up appointments, calibrated examiners measured radiographic interproximal bone level using ImageJ for Windows after calibration of the radiographs. References for the bone level measurements were the platform, first and second threads of the implants. Statistical analyses, using STATA version 12, stratified patients according to RAB height (group 1: RAB of ≤4 mm; n = 35 and group 2: RAB > 4 mm; n = 67), age, gender, and treatment center.ResultsThe success rate was 100% for group 1 and 98.51% for group 2 at 6 to 100 months postprosthetic loading (mean = 29.7 months). The peri‐implant bone loss averaged 0.55 mm (interquartile range [IQR] = 0.5 [0–1]) in group 1 and 0.07 mm (IQR = 0 [0–0]) in group 2. There was no statistically significant difference between the two groups. Clinical outcomes were independent of age, gender, and treatment center.ConclusionsThe RAB height did not increase crestal bone loss or reduce the success rate of the implants and associated prostheses. The crestal approach should be considered a viable technique for use in patients with residual bone height of ≤4 mm and merits further evaluation.

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Tài liệu tham khảo

10.1177/002203459607502S08

10.1016/0022-3913(71)90069-2

10.1016/S0901-5027(98)80031-3

Summers RB, 1994, A new concept in maxillary implant surgery: the osteotome technique, Compendium, 15, 152

10.1097/01.ID.0000116369.66716.12

10.1016/S1079-2104(98)90391-2

Rosen PS, 1999, The bone‐added osteotome sinus floor elevation technique: multicenter retrospective report of consecutively treated patients, Int J Oral Maxillofac Implants, 14, 853

10.1111/j.1600-0501.2008.01686.x

Winter AA, 2002, Placement of implants in the severely atrophic posterior maxilla using localized management of the sinus floor: a preliminary study, Int J Oral Maxillofac Implants, 17, 687

Peleg M, 2006, Predictability of simultaneous implant placement in the severely atrophic posterior maxilla: a 9‐year longitudinal experience study of 2132 implants placed into 731 human sinus grafts, Int J Oral Maxillofac Implants, 21, 94

10.1111/j.1600-0501.2006.01264.x

10.1034/j.1600-051X.2003.00366.x

10.1902/jop.2000.71.3.341

10.1054/ijom.2002.0459

Nkenke E, 2002, The endoscopically controlled osteotome sinus floor elevation: a preliminary prospective study, Int J Oral Maxillofac Implants, 17, 557

Engelke W, 2003, Subantroscopic laterobasal sinus floor augmentation (SALSA): an up‐to‐5‐year clinical study, Int J Oral Maxillofac Implants, 18, 135

Toffler M, 2004, Osteotome‐mediated sinus floor elevation: a clinical report, Int J Oral Maxillofac Implants, 19, 266

10.1111/j.1600-0501.2005.01161.x

10.1111/j.1600-0501.2005.01192.x

10.1016/j.joms.2006.10.047

10.1111/j.1708-8208.2004.tb00217.x

10.1902/jop.2005.76.3.385

10.1902/annals.2003.8.1.328

10.1902/jop.2011.110086

Hallman M, 2002, A clinical and histologic evaluation of implant integration in the posterior maxilla after sinus floor augmentation with autogenous bone, bovine hydroxyapatite, or a 20:80 mixture, Int J Oral Maxillofac Implants, 17, 635

Del Fabbro M, 2004, Systematic review of survival rates for implants placed in the grafted maxillary sinus, Int J Periodontics Restorative Dent, 24, 565

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Clinical Implant Dentistry and Related Research

Tập 16 Số 6

827-835

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