Effect of Periodontal Treatment on the Biomechanical Properties of the Periodontium.

The study is designed as a prospective single center comparative clinical trial to investigate the biomechanical properties of the periodontal tissues in 30 patients with periodontal disease.

Success of non-surgical periodontal therapy between baseline and 30 post-op will be assessed by general clinical measurements (KT, PD, CAL, BOP) as well as by biomechanical analysis. Besides assessment for regular treatment effectiveness, safety parameter such as wound healing and adverse events will be assessed.

Additionally 10 periodontally healthy persons without local inflammation and bone loss shall be monitored and used a control group for reference to the test teeth.

Inclusion criteria

• Moderate/advanced/severe periodontitis
• Intact anterior dentition upper yaw.
• Expected performance of adequate oral hygiene
• Subjects must have voluntarily signed the informed consent form before any study related procedures
• Males and females with at least 18 years of age
• Subjects must be committed to the study and the required follow-up visits
• Subject must be judged in good general health as assessed by the investigator at time of non-surgical therapy

Exclusion criteria

• Any contraindications for subgingival instrumentation
• Uncontrolled diabetes or other uncontrolled systemic diseases
• Disorders or treatments that compromise wound healing
• Medical conditions requiring chronic high dose steroid therapy
• Bone metabolic diseases
• Radiation or other immuno-oppressive therapy
• Chronic anti-inflammatory treatment (≥3 times per week) within 4 weeks prior to treatment
• Presence of oral lesions (such as ulceration, malignancy)
• Mucosal diseases (e.g., lichen planus, mouth ulcer)
• History of malignant disease in the oral cavity or previous radiotherapy to the head or neck
• Treatment with an investigational drug or device within the 30 day period immediately prior to therapy on study day 0
• Female subjects who are nursing, pregnant, or plan to become pregnant
• Antibiotic treatment