Clinical Application of Er:YAG Dental Laser System

There are four indications will be included in this plan. They are Cavity, Sensitive Teeth, Abnormal Frenum Attachment and Peri-implantitis. Each indication has different procedures which are listed as below:

Cavity: history records, affected range check, X-ray&photo, treatment, pain index check, return visit check after two weeks. Sensitive Teeth: history records, sensitive check, X-ray&photo, treatment, pain index and effectiveness check, return visit check after two weeks. Abnormal Frenum Attachment: history records, abnormal position check, photo, cutting, pain index check, return visit check after three, five and seven days. Peri-implantitis: History records, measure periodontal pocket depth, anaerobes collect, X-ray, photo, CT, treatment, pain index check, return visit check after one week, two weeks, four weeks and three months, six months check the effectiveness and collect anaerobes during every return visit. In the last return visit, X-ray and CT would be included.

Inclusion criteria

• Ages: 20 years and above。
• Patients are available for multiple follow-up visits for the duration of the study.
• Having the mental ability to express informed consent.
• Patients clinically diagnosed as having Cavity, Sensitive Teeth, Abnormal Frenum Attachment or Peri-implantitis.

Exclusion criteria

• Severe diabetes and chronic diseases are excluded.
• CVA patients or the patients taking anti-rejection medicine and osteoporosis drugs for long-term should be excluded.
• Patient who suffer from photodermatosis and photosensitive patients (photoallergic).
• The health condition is not well after health education and physical therapy are excluded.
• Surgery on patients with serious diseases of the hemopoietic system (such as haemophilia and leukaemia).
• Malignant tumours, obligate precancerous tumours, hemangiomas.
• Coronary heart disease and chronic obstructive pulmonary diseases are excluded.
• Pregnant woman.