When the clinical watch of deep caries is existing easy as phlogistic as dental pulp of sex of dental pulp hyperaemia, chronic closedown, dental pulp is necrotic (gangrenous) interblend confuse.

• 深龋的临床表现有时容易与牙髓充血、慢性闭锁性牙髓炎、牙髓坏死（坏疽）相混淆。