Tarnow D P, Emtiaz S, Classi A
Department of Implant Dentistry, New York University, College of Dentistry, New York, USA.
Int J Oral Maxillofac Implants. 1997 May-Jun;12(3):319-24.
Immediate loading of threaded implants with a fixed provisional restoration at stage 1 surgery was evaluated in 10 consecutive patients. The patients selected had to be completely edentulous and have adequate bone for a minimum of 10-mm-long implants. A minimum of 10 implants were placed in each patient's arch. A minimum of five implants were submerged initially for medicolegal reasons and allowed to heal without loading. The remaining implants were loaded the day of stage 1 surgery. Once the provisional restoration was relined, it was cemented or screw retained. A total of 107 implants were placed in these 10 patients; 6 had them placed in the mandible, and 4 in the maxilla. Six patients were treated with Nobel Biocare implants, one with ITI Bonefit implants, two with Astra Tech TiOblast implants, and one with a 31 implant. Sixty-seven of 69 implants that were loaded integrated, and 37 of 38 submerged implants integrated. All 10 patients have been restored with a definitive prosthesis, and all had a fixed provisional prosthesis from stage 1 surgery. The results of this study indicate that immediate loading of multiple implants rigidly splinted around a completely edentulous arch can be a viable treatment modality.
对10例连续患者进行了评估,这些患者在一期手术时采用带固定临时修复体的螺纹种植体即刻负重。入选患者必须为全口无牙颌,且有足够的骨量以植入至少10毫米长的种植体。每位患者的牙弓至少植入10枚种植体。出于法医学原因,最初至少有5枚种植体被埋入,使其在无负重的情况下愈合。其余种植体在一期手术当天进行负重。一旦临时修复体重新衬里,就用粘结或螺丝固位。这10例患者共植入107枚种植体;6例植入在下颌骨,4例植入在上颌骨。6例患者使用诺贝尔生物公司的种植体治疗,1例使用ITI骨结合种植体,2例使用阿斯特拉技术TiOblast种植体,1例使用31种植体。69枚负重种植体中有67枚实现骨结合,38枚埋入种植体中有37枚实现骨结合。所有10例患者均已用最终修复体修复,且自一期手术起均佩戴固定临时修复体。本研究结果表明,在全口无牙颌牙弓周围对多枚种植体进行刚性固定连接并即刻负重可能是一种可行的治疗方式。