In 2018, the ADA Center for Evidence-Based Dentistry conducted a systematic review and network meta-analysis44 informing a clinical practice guideline42 on nonrestorative treatments for carious lesions. The expert panel formulated 11 clinical recommendations, each specific to lesion type (i.e., cavitated, noncavitated), tooth surface (i.e., coronal, root surface [in adults]) and dentition (i.e., primary or permanent). The panel provided recommendations for the use of the most effective treatment options, which included 38% SDF, along with other topical fluoride products. The expert panel recommended that clinicians prioritize the use of 38% SDF solution biannually to arrest advanced cavitated carious lesions on coronal surfaces of primary teeth.42 The expert panel extrapolated these results to recommend that clinicians could also use biannual application of 38% SDF solution to arrest advanced cavitated lesions on coronal surfaces of permanent teeth. Biannual application of 38% SDF for advanced cavitated lesions may be relevant if access to care is limited, for uncooperative patients, or for patients when general anesthetic is not considered safe.42, Silver Diamine Fluoride Key Points There has been strong research interest in the use of silver diamine fluoride (SDF) to arrest caries lesions, which is an off-label use. SDF currently has FDA clearance for treating tooth sensitivity. The potential benefits of SDF treatment for caries arrest include its low cost and ease of application., 3D空间中SDF在实际应用中,形式有很多。 最典型的 显式 形式,即为场景分配一张3D Texture,其中 格点到TriangleMesh的最近距离 作为SDF Texture的值。同样也有在代码中直接定义出的 隐式 形状的方法,可直接计算得到有向距离场 (Inigo Quilez: SDF Primitives)。.