Afsharzand Zahra, Rashedi Behnoush, Petropoulos Vicki C
Department of Restorative Dentistry, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104-6003, USA.
J Prosthodont. 2006 May-Jun;15(3):202-7. doi: 10.1111/j.1532-849X.2006.00102.x.
A questionnaire was sent to U.S. dental laboratories to evaluate the level of communication between dentists and laboratory technicians and to determine trends in procedures and materials used in fixed and removable implant restorations.
Dental laboratories were randomly chosen from the National Association of Dental Laboratories for each of the 50 states. The questionnaire was mailed to the laboratory directors for 199 dental laboratories. One hundred fourteen dental laboratories returned the survey, yielding a response rate of 57%. Of those laboratories, 37 indicated that they did not participate in the fabrication of fixed implant restorations, yielding a response rate of 39%. Forty-two dental laboratories indicated that they did not participate in the fabrication of implant-retained overdenture prostheses, yielding a response rate of 36%.
Results from this survey show inadequate communication by dentists in completing work authorization forms. Custom trays are used more frequently for implant-retained overdenture impressions and stock trays for impressions of fixed implant prostheses. Poly(vinyl siloxane) is the material most commonly used for both fixed and removable implant-supported prostheses. Two implants with stud attachments are used more widely than those with bar attachments for implant-retained overdentures.
Most laboratories working on implant prosthodontic cases report inadequate communication between the laboratory and dentists related to materials and techniques used in fabrication of implant restorations.
向美国牙科实验室发送一份调查问卷,以评估牙医与实验室技术人员之间的沟通水平,并确定固定和可摘种植修复中所使用的程序和材料的趋势。
从全国牙科实验室协会中为50个州的每一个随机选择牙科实验室。向199个牙科实验室的主任邮寄了调查问卷。114个牙科实验室回复了调查,回复率为57%。在这些实验室中,37个表示他们不参与固定种植修复体的制作,回复率为39%。42个牙科实验室表示他们不参与种植体固位覆盖义齿修复体的制作,回复率为36%。
本次调查结果显示,牙医在填写工作授权表时沟通不足。定制托盘在种植体固位覆盖义齿印模中使用更为频繁,而固定种植修复体印模则使用成品托盘。聚(乙烯基硅氧烷)是固定和可摘种植体支持修复体最常用的材料。对于种植体固位覆盖义齿,带有柱形附着体的两颗种植体比带有杆形附着体的种植体使用更广泛。
大多数从事种植修复病例的实验室报告称,在种植修复体制作中,实验室与牙医之间在材料和技术方面的沟通不足。