Shenzhen oral experts said: porcelain teeth have good biocompatibility, beautiful, without the advantages of oral foreign body sensation, and won't cause gingival recession.

      Perfect PFM crown repair experience to protect the hard and soft tissue around. f the restoration is not perfect mainly includes the following situations.

      Excessive gingival retraction, resulting in irreversible damage to the gums.

      Edge sealing, easy accumulation of food residue and bacteria, lead to the occurrence of periodontal inflammation.

      Crown margin with overhanging, directly stimulate the gums or lead to local is not conducive to cleaning; both may cause local gum in the acute and chronic inflammation, such as timely treatment is may lead to the destruction of periodontal tissue and gingival atrophy.

• What are the main types of gingival recession?
• Can regular cleaning prevent gingival recession?