NYU College of Dentistry, NYU College of Dentistry, New York, NY, USA.
J Prosthet Dent. 2012 Dec;108(6):344-53. doi: 10.1016/S0022-3913(12)60190-5.
Currently, there is no commercially available method to provide non-invasive, non-ionizing, real-time imaging of the gingival form and bony architecture of implant sites, before, during, and after implant placement.
The purpose of this study was to demonstrate the feasibility of 2-dimensional (2-D) ultrasound imaging of soft and hard tissues for implant diagnosis and treatment planning.
A sector scanning ultrasound system was applied. Five representative clinical features (implant in an edentulous ridge, single implant tooth replacement, implant dehiscence, tooth dehiscence, and mental foramina) were created or identified in each of the 5 porcine jaws, which were then covered with soft tissue and imaged in an acoustic water tank.
All of the 5 model features, in all 5 jaws, were clearly visible with the ultrasound. Most objects were visible over a large range of positions and angles. Each of the features, as well as the soft tissue and bone surfaces, were recognized by specific acoustic signatures, with the same signature recurring for each object type among all 5 of the jaw specimens. All implants were highly reflective and clearly visualized.
A 2-D sector scanning ultrasound system was demonstrated to be capable of imaging representative features for implant treatment planning in a porcine model; these included implants placed in edentulous ridges; implants placed for single tooth replacement; implants with simulated dehiscences; teeth with simulated dehiscences; and mental foramina. Specific acoustic signatures for these features were defined. Qualitative differences between ultrasound and other dental imaging techniques were described.
目前，尚无商业方法可在植入物放置之前、期间和之后提供对牙龈形态和植入部位骨结构的非侵入性、非电离、实时成像。
本研究旨在证明 2 维（2-D）超声成像在植入物诊断和治疗计划中的软组织和硬组织的可行性。
应用扇形扫描超声系统。在每只 5 个猪颌骨中，每个颌骨都创建或识别了 5 个代表性临床特征（无牙颌中的植入物、单个植入物牙齿置换、植入物裂开、牙齿裂开和颏孔），然后用软组织覆盖并在声学水箱中成像。
所有 5 个模型特征在所有 5 个颌骨中均通过超声清晰可见。大多数物体在较大的位置和角度范围内可见。每个特征以及软组织和骨表面都具有特定的声信号识别，在所有 5 个颌标本中，每个物体类型都具有相同的声信号。所有植入物都具有高反射性，并且可以清晰地可视化。
2-D 扇形扫描超声系统被证明能够在猪模型中成像用于植入物治疗计划的代表性特征；这些特征包括放置在无牙颌中的植入物；用于单个牙齿置换的植入物；模拟裂开的植入物；模拟裂开的牙齿；和颏孔。为这些特征定义了特定的声信号。描述了超声与其他牙科成像技术之间的定性差异。
