Dental caries is a major disease that threaten human's oral healthy severely with the characteristics of high incidence, low rate of treatment and high rate of retreatment. At present, restorative treatment remains the main method for caries treatment. With the development of the Minimally Invasive Cosmetic Dentistry (MICD), reasonable application of various treatment technologies, maximum preservation of tooth tissues and realizing the maximization of treatment effects become problems that call for immediate solution in dental clinics. In addition, there still exist a large number of old restorations that need standard retreatments. Here, some difficulty influence factors of dental caries clinical treatment such as systemic and oral factors, individual caries susceptibility, treatment technologies and materials, retreatment methods of old restorations and technique sensitivity are analyzed, and corresponding processing strategies are also put forward.
龋病是严重危害人类口腔健康的主要疾病，具有发病率高，治疗率低，再治疗率高等特点。目前，充填修复术仍然是龋病临床治疗的主要方法。随着微创美学牙科理念的提出，如何合理应用各种治疗技术，最大限度地保存牙体组织，实现龋病治疗效果的最大化已成为口腔临床迫切需要解决的问题。此外，临床上还存在大量的陈旧修复体，这些修复体的再处理也亟待规范。本文就全身因素、口腔因素、个体龋病易患性、治疗技术和材料、陈旧修复体处理，以及技术敏感性等影响龋病临床治疗的难度因素进行分析，并提出针对性的处理策略。.
Keywords: dental caries; difficulty factor; retreatment; standard treatment; technique sensitivity.