Department of Restorative Dental Sciences, College of Dentistry, University of Florida, P.O. Box 100415, Gainesville, FL 32610-0415, USA.
J Am Dent Assoc. 2012 Jun;143(6):593-601. doi: 10.14219/jada.archive.2012.0238.
The authors aimed to determine whether dentists in practices belonging to The Dental Practice-Based Research Network (DPBRN) were more likely to repair or to replace a restoration that they diagnosed as defective; to quantify dentists' specific reasons for repairing or replacing restorations; and to test the hypothesis that certain dentist-, patient- and restoration-related variables are associated with the decision between repairing and replacing restorations.
This cross-sectional study had a consecutive patient and restoration recruitment design. Practitioner-investigators (P-Is) recorded data for consecutively seen restorations in permanent teeth that needed repair or replacement. The DPBRN is a consortium of dental practitioners and dental organizations in the United States and Scandinavia. The collected data included the primary reason for repair or replacement, tooth surface or surfaces involved, restorative materials used and patients' demographic information.
P-Is collected data regarding 9,484 restorations from 7,502 patients in 197 practices. Seventy-five percent (7,073) of restorations were replaced and 25 percent (2,411) repaired. Secondary caries was the main reason (43 percent, n = 4,124) for treatment. Factors associated with a greater likelihood of repairing versus replacing restorations (P < .05) included having graduated from dental school more recently, practicing in a large group practice, being the dentist who placed the original restoration, patient's being of an older age, the original restorative material's being something other than amalgam, restoration of a molar and the original restoration's involving fewer tooth surfaces.
DPBRN dentists were more likely to replace than to repair restorations. Secondary caries was the most common reason for repairing or replacing restorations. Certain dentist-, patient- and restoration-related variables were associated with the repair-or-replace decision.
The selection of minimally invasive treatment for an existing restoration is critical, as it may affect the longevity of the tooth.
作者旨在确定属于牙科实践为基础研究网络（DPBRN）的牙医更倾向于修复还是更换他们诊断为有缺陷的修复体；量化牙医修复或更换修复体的具体原因；并检验某些牙医、患者和修复体相关变量与修复和更换修复体之间决策相关的假设。
这是一项横断面研究，采用连续患者和修复体招募设计。执业调查员（P-Is）记录了需要修复或更换的恒牙中连续就诊修复体的数据。DPBRN 是美国和斯堪的纳维亚的牙科从业者和牙科组织的联盟。收集的数据包括修复或更换的主要原因、涉及的牙面或牙面、使用的修复材料以及患者的人口统计学信息。
P-Is 从 197 个实践中的 7,502 名患者中收集了 9,484 个修复体的数据。75%（7,073）的修复体被更换，25%（2,411）被修复。继发龋是治疗的主要原因（43%，n=4,124）。与更倾向于修复而非更换修复体的因素（P<.05）相关的因素包括毕业时间较近、在大型团体实践中执业、是放置原始修复体的牙医、患者年龄较大、原始修复材料不是银汞合金、磨牙修复和原始修复体涉及较少的牙面。
DPBRN 牙医更倾向于更换而不是修复修复体。继发龋是修复或更换修复体的最常见原因。某些牙医、患者和修复体相关变量与修复或更换决策相关。
选择微创治疗现有的修复体至关重要，因为它可能会影响牙齿的寿命。
